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• IPsec tunnel to Android device not created even though there is an IKE SA

  - by Quentin Swain

  I'm trying to configure a VPN tunnel between an Android device running 4.1 and a Fedora 17 Linux box running strongSwan 5.0. The device reports that it is connected and strongSwan statusall returns that there is an IKE SA, but doesn't display a tunnel. I used the instructions for iOS in the wiki to generate certificates and configure strongSwan. Since Android uses a modified version of racoon this should work and since the connection is partly established I think I am on the right track. I don't see any errors about not being able to create the tunnel. This is the configuration for the strongSwan connection conn android2 keyexchange=ikev1 authby=xauthrsasig xauth=server left=96.244.142.28 leftsubnet=0.0.0.0/0 leftfirewall=yes leftcert=serverCert.pem right=%any rightsubnet=10.0.0.0/24 rightsourceip=10.0.0.2 rightcert=clientCert.pem ike=aes256-sha1-modp1024 auto=add This is the output of strongswan statusall Status of IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64): uptime: 20 minutes, since Oct 31 10:27:31 2012 malloc: sbrk 270336, mmap 0, used 198144, free 72192 worker threads: 8 of 16 idle, 7/1/0/0 working, job queue: 0/0/0/0, scheduled: 7 loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic Virtual IP pools (size/online/offline): android-hybrid: 1/0/0 android2: 1/1/0 Listening IP addresses: 96.244.142.28 Connections: android-hybrid: %any...%any IKEv1 android-hybrid: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android-hybrid: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android-hybrid: remote: [%any] uses XAuth authentication: any android-hybrid: child: dynamic === dynamic TUNNEL android2: 96.244.142.28...%any IKEv1 android2: local: [C=CH, O=strongSwan, CN=vpn.strongswan.org] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=vpn.strongswan.org" android2: remote: [C=CH, O=strongSwan, CN=client] uses public key authentication android2: cert: "C=CH, O=strongSwan, CN=client" android2: remote: [%any] uses XAuth authentication: any android2: child: 0.0.0.0/0 === 10.0.0.0/24 TUNNEL Security Associations (1 up, 0 connecting): android2[3]: ESTABLISHED 10 seconds ago, 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] android2[3]: Remote XAuth identity: android android2[3]: IKEv1 SPIs: 4151e371ad46b20d_i 59a56390d74792d2_r*, public key reauthentication in 56 minutes android2[3]: IKE proposal: AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 The output of ip -s xfrm policy src ::/0 dst ::/0 uid 0 socket in action allow index 3851 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3844 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket in action allow index 3835 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src ::/0 dst ::/0 uid 0 socket out action allow index 3828 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use - src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3819 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:39 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3812 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:22 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket in action allow index 3803 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 socket out action allow index 3796 priority 0 ptype main share any flag (0x00000000) lifetime config: limit: soft 0(bytes), hard 0(bytes) limit: soft 0(packets), hard 0(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:29:08 use 2012-10-31 13:29:20 So a xfrm policy isn't being created for the connection, even though there is an SA between device and strongswan. Executing ip -s xfrm policy on the android device results in the following output: src 0.0.0.0/0 dst 10.0.0.2/32 uid 0 dir in action allow index 40 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 96.244.142.28 dst 25.239.33.30 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 10.0.0.2/32 dst 0.0.0.0/0 uid 0 dir out action allow index 33 priority 2147483648 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:08 use - tmpl src 25.239.33.30 dst 96.244.142.28 proto esp spi 0x00000000(0) reqid 0(0x00000000) mode tunnel level required share any enc-mask 00000000 auth-mask 00000000 comp-mask 00000000 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 28 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 19 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:08 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 4 action allow index 12 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:06 src 0.0.0.0/0 dst 0.0.0.0/0 uid 0 dir 3 action allow index 3 priority 0 share any flag (0x00000000) lifetime config: limit: soft (INF)(bytes), hard (INF)(bytes) limit: soft (INF)(packets), hard (INF)(packets) expire add: soft 0(sec), hard 0(sec) expire use: soft 0(sec), hard 0(sec) lifetime current: 0(bytes), 0(packets) add 2012-10-31 13:42:04 use 2012-10-31 13:42:07 Logs from charon: 00[DMN] Starting IKE charon daemon (strongSwan 5.0.0, Linux 3.3.4-5.fc17.x86_64, x86_64) 00[KNL] listening on interfaces: 00[KNL] em1 00[KNL] 96.244.142.28 00[KNL] fe80::224:e8ff:fed2:18b2 00[CFG] loading ca certificates from '/etc/strongswan/ipsec.d/cacerts' 00[CFG] loaded ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" from '/etc/strongswan/ipsec.d/cacerts/caCert.pem' 00[CFG] loading aa certificates from '/etc/strongswan/ipsec.d/aacerts' 00[CFG] loading ocsp signer certificates from '/etc/strongswan/ipsec.d/ocspcerts' 00[CFG] loading attribute certificates from '/etc/strongswan/ipsec.d/acerts' 00[CFG] loading crls from '/etc/strongswan/ipsec.d/crls' 00[CFG] loading secrets from '/etc/strongswan/ipsec.secrets' 00[CFG] loaded RSA private key from '/etc/strongswan/ipsec.d/private/clientKey.pem' 00[CFG] loaded IKE secret for %any 00[CFG] loaded EAP secret for android 00[CFG] loaded EAP secret for android 00[DMN] loaded plugins: charon aes des sha1 sha2 md5 random nonce x509 revocation constraints pubkey pkcs1 pkcs8 pgp dnskey pem openssl fips-prf gmp xcbc cmac hmac attr kernel-netlink resolve socket-default stroke updown xauth-generic 08[NET] waiting for data on sockets 16[LIB] created thread 16 [15338] 16[JOB] started worker thread 16 11[CFG] received stroke: add connection 'android-hybrid' 11[CFG] conn android-hybrid 11[CFG] left=%any 11[CFG] leftsubnet=(null) 11[CFG] leftsourceip=(null) 11[CFG] leftauth=pubkey 11[CFG] leftauth2=(null) 11[CFG] leftid=(null) 11[CFG] leftid2=(null) 11[CFG] leftrsakey=(null) 11[CFG] leftcert=serverCert.pem 11[CFG] leftcert2=(null) 11[CFG] leftca=(null) 11[CFG] leftca2=(null) 11[CFG] leftgroups=(null) 11[CFG] leftupdown=ipsec _updown iptables 11[CFG] right=%any 11[CFG] rightsubnet=(null) 11[CFG] rightsourceip=96.244.142.3 11[CFG] rightauth=xauth 11[CFG] rightauth2=(null) 11[CFG] rightid=%any 11[CFG] rightid2=(null) 11[CFG] rightrsakey=(null) 11[CFG] rightcert=(null) 11[CFG] rightcert2=(null) 11[CFG] rightca=(null) 11[CFG] rightca2=(null) 11[CFG] rightgroups=(null) 11[CFG] rightupdown=(null) 11[CFG] eap_identity=(null) 11[CFG] aaa_identity=(null) 11[CFG] xauth_identity=(null) 11[CFG] ike=aes256-sha1-modp1024 11[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 11[CFG] dpddelay=30 11[CFG] dpdtimeout=150 11[CFG] dpdaction=0 11[CFG] closeaction=0 11[CFG] mediation=no 11[CFG] mediated_by=(null) 11[CFG] me_peerid=(null) 11[CFG] keyexchange=ikev1 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[KNL] getting interface name for %any 11[KNL] %any is not a local address 11[CFG] left nor right host is our side, assuming left=local 11[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 11[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 11[CFG] added configuration 'android-hybrid' 11[CFG] adding virtual IP address pool 'android-hybrid': 96.244.142.3/32 13[CFG] received stroke: add connection 'android2' 13[CFG] conn android2 13[CFG] left=96.244.142.28 13[CFG] leftsubnet=0.0.0.0/0 13[CFG] leftsourceip=(null) 13[CFG] leftauth=pubkey 13[CFG] leftauth2=(null) 13[CFG] leftid=(null) 13[CFG] leftid2=(null) 13[CFG] leftrsakey=(null) 13[CFG] leftcert=serverCert.pem 13[CFG] leftcert2=(null) 13[CFG] leftca=(null) 13[CFG] leftca2=(null) 13[CFG] leftgroups=(null) 13[CFG] leftupdown=ipsec _updown iptables 13[CFG] right=%any 13[CFG] rightsubnet=10.0.0.0/24 13[CFG] rightsourceip=10.0.0.2 13[CFG] rightauth=pubkey 13[CFG] rightauth2=xauth 13[CFG] rightid=(null) 13[CFG] rightid2=(null) 13[CFG] rightrsakey=(null) 13[CFG] rightcert=clientCert.pem 13[CFG] rightcert2=(null) 13[CFG] rightca=(null) 13[CFG] rightca2=(null) 13[CFG] rightgroups=(null) 13[CFG] rightupdown=(null) 13[CFG] eap_identity=(null) 13[CFG] aaa_identity=(null) 13[CFG] xauth_identity=(null) 13[CFG] ike=aes256-sha1-modp1024 13[CFG] esp=aes128-sha1-modp2048,3des-sha1-modp1536 13[CFG] dpddelay=30 13[CFG] dpdtimeout=150 13[CFG] dpdaction=0 13[CFG] closeaction=0 13[CFG] mediation=no 13[CFG] mediated_by=(null) 13[CFG] me_peerid=(null) 13[CFG] keyexchange=ikev0 13[KNL] getting interface name for %any 13[KNL] %any is not a local address 13[KNL] getting interface name for 96.244.142.28 13[KNL] 96.244.142.28 is on interface em1 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=vpn.strongswan.org" from 'serverCert.pem' 13[CFG] id '96.244.142.28' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=vpn.strongswan.org' 13[CFG] loaded certificate "C=CH, O=strongSwan, CN=client" from 'clientCert.pem' 13[CFG] id '%any' not confirmed by certificate, defaulting to 'C=CH, O=strongSwan, CN=client' 13[CFG] added configuration 'android2' 13[CFG] adding virtual IP address pool 'android2': 10.0.0.2/32 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 15[CFG] looking for an ike config for 96.244.142.28...208.54.35.241 15[CFG] candidate: %any...%any, prio 2 15[CFG] candidate: 96.244.142.28...%any, prio 5 15[CFG] found matching ike config: 96.244.142.28...%any with prio 5 01[JOB] next event in 29s 999ms, waiting 15[IKE] received NAT-T (RFC 3947) vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02 vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-02\n vendor ID 15[IKE] received draft-ietf-ipsec-nat-t-ike-00 vendor ID 15[IKE] received XAuth vendor ID 15[IKE] received Cisco Unity vendor ID 15[IKE] received DPD vendor ID 15[IKE] 208.54.35.241 is initiating a Main Mode IKE_SA 15[IKE] IKE_SA (unnamed)[1] state change: CREATED => CONNECTING 15[CFG] selecting proposal: 15[CFG] proposal matches 15[CFG] received proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_256/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:AES_CBC_128/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:3DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:3DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024, IKE:DES_CBC/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:DES_CBC/HMAC_MD5_96/PRF_HMAC_MD5/MODP_1024 15[CFG] configured proposals: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024, IKE:AES_CBC_128/AES_CBC_192/AES_CBC_256/3DES_CBC/CAMELLIA_CBC_128/CAMELLIA_CBC_192/CAMELLIA_CBC_256/HMAC_MD5_96/HMAC_SHA1_96/HMAC_SHA2_256_128/HMAC_SHA2_384_192/HMAC_SHA2_512_256/AES_XCBC_96/AES_CMAC_96/PRF_HMAC_MD5/PRF_HMAC_SHA1/PRF_HMAC_SHA2_256/PRF_HMAC_SHA2_384/PRF_HMAC_SHA2_512/PRF_AES128_XCBC/PRF_AES128_CMAC/MODP_2048/MODP_2048_224/MODP_2048_256/MODP_1536/MODP_4096/MODP_8192/MODP_1024/MODP_1024_160 15[CFG] selected proposal: IKE:AES_CBC_256/HMAC_SHA1_96/PRF_HMAC_SHA1/MODP_1024 15[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 15[MGR] checkin IKE_SA (unnamed)[1] 15[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 08[NET] waiting for data on sockets 07[MGR] checkout IKE_SA by message 07[MGR] IKE_SA (unnamed)[1] successfully checked out 07[NET] received packet: from 208.54.35.241[32235] to 96.244.142.28[500] 07[LIB] size of DH secret exponent: 1023 bits 07[IKE] remote host is behind NAT 07[IKE] sending cert request for "C=CH, O=strongSwan, CN=strongSwan CA" 07[ENC] generating NAT_D_V1 payload finished 07[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 07[MGR] checkin IKE_SA (unnamed)[1] 07[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[500] to 208.54.35.241[32235] 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 10[IKE] ignoring certificate request without data 10[IKE] received end entity cert "C=CH, O=strongSwan, CN=client" 10[CFG] looking for XAuthInitRSA peer configs matching 96.244.142.28...208.54.35.241[C=CH, O=strongSwan, CN=client] 10[CFG] candidate "android-hybrid", match: 1/1/2/2 (me/other/ike/version) 10[CFG] candidate "android2", match: 1/20/5/1 (me/other/ike/version) 10[CFG] selected peer config "android2" 10[CFG] certificate "C=CH, O=strongSwan, CN=client" key: 2048 bit RSA 10[CFG] using trusted ca certificate "C=CH, O=strongSwan, CN=strongSwan CA" 10[CFG] checking certificate status of "C=CH, O=strongSwan, CN=client" 10[CFG] ocsp check skipped, no ocsp found 10[CFG] certificate status is not available 10[CFG] certificate "C=CH, O=strongSwan, CN=strongSwan CA" key: 2048 bit RSA 10[CFG] reached self-signed root ca with a path length of 0 10[CFG] using trusted certificate "C=CH, O=strongSwan, CN=client" 10[IKE] authentication of 'C=CH, O=strongSwan, CN=client' with RSA successful 10[ENC] added payload of type ID_V1 to message 10[ENC] added payload of type SIGNATURE_V1 to message 10[IKE] authentication of 'C=CH, O=strongSwan, CN=vpn.strongswan.org' (myself) successful 10[IKE] queueing XAUTH task 10[IKE] sending end entity cert "C=CH, O=strongSwan, CN=vpn.strongswan.org" 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 10[IKE] activating new tasks 10[IKE] activating XAUTH task 10[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 01[JOB] next event in 3s 999ms, waiting 10[MGR] checkin IKE_SA android2[1] 10[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 12[MGR] checkout IKE_SA by message 12[MGR] IKE_SA android2[1] successfully checked out 12[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 12[MGR] checkin IKE_SA android2[1] 12[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 16[MGR] checkout IKE_SA by message 16[MGR] IKE_SA android2[1] successfully checked out 16[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 08[NET] waiting for data on sockets 16[IKE] XAuth authentication of 'android' successful 16[IKE] reinitiating already active tasks 16[IKE] XAUTH task 16[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 16[MGR] checkin IKE_SA android2[1] 01[JOB] next event in 3s 907ms, waiting 16[MGR] check-in of IKE_SA successful. 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 09[MGR] checkout IKE_SA by message 09[MGR] IKE_SA android2[1] successfully checked out 09[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] .8rS 09[IKE] IKE_SA android2[1] established between 96.244.142.28[C=CH, O=strongSwan, CN=vpn.strongswan.org]...208.54.35.241[C=CH, O=strongSwan, CN=client] 09[IKE] IKE_SA android2[1] state change: CONNECTING => ESTABLISHED 09[IKE] scheduling reauthentication in 3409s 09[IKE] maximum IKE_SA lifetime 3589s 09[IKE] activating new tasks 09[IKE] nothing to initiate 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 09[MGR] checkout IKE_SA 09[MGR] IKE_SA android2[1] successfully checked out 09[MGR] checkin IKE_SA android2[1] 09[MGR] check-in of IKE_SA successful. 01[JOB] next event in 3s 854ms, waiting 08[NET] waiting for data on sockets 08[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[MGR] checkout IKE_SA by message 14[MGR] IKE_SA android2[1] successfully checked out 14[NET] received packet: from 208.54.35.241[35595] to 96.244.142.28[4500] 14[IKE] processing INTERNAL_IP4_ADDRESS attribute 14[IKE] processing INTERNAL_IP4_NETMASK attribute 14[IKE] processing INTERNAL_IP4_DNS attribute 14[IKE] processing INTERNAL_IP4_NBNS attribute 14[IKE] processing UNITY_BANNER attribute 14[IKE] processing UNITY_DEF_DOMAIN attribute 14[IKE] processing UNITY_SPLITDNS_NAME attribute 14[IKE] processing UNITY_SPLIT_INCLUDE attribute 14[IKE] processing UNITY_LOCAL_LAN attribute 14[IKE] processing APPLICATION_VERSION attribute 14[IKE] peer requested virtual IP %any 14[CFG] assigning new lease to 'android' 14[IKE] assigning virtual IP 10.0.0.2 to peer 'android' 14[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 14[MGR] checkin IKE_SA android2[1] 14[MGR] check-in of IKE_SA successful. 04[NET] sending packet: from 96.244.142.28[4500] to 208.54.35.241[35595] 08[NET] waiting for data on sockets 01[JOB] got event, queuing job for execution 01[JOB] next event in 91ms, waiting 13[MGR] checkout IKE_SA 13[MGR] IKE_SA android2[1] successfully checked out 13[MGR] checkin IKE_SA android2[1] 13[MGR] check-in of IKE_SA successful. 01[JOB] got event, queuing job for execution 01[JOB] next event in 24s 136ms, waiting 15[MGR] checkout IKE_SA 15[MGR] IKE_SA android2[1] successfully checked out 15[MGR] checkin IKE_SA android2[1] 15[MGR] check-in of IKE_SA successful.

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• YSlow Grade F on Add Expires headers - help please

  - by gwmbox

  I am using Joomla for my site and I have included Expires Headers in my htaccess file, however when checking the site via YSlow the grade is still F, the code in the htaccess file for this is <IfModule mod_expires.c> # Enable expiration control ExpiresActive On # Default expiration: Immediate after request ExpiresDefault "now" # CSS and JS expiration: 1 week after request ExpiresByType text/css "now plus 1 week" ExpiresByType application/javascript "now plus 1 week" ExpiresByType application/x-javascript "now plus 1 week" # Image files expiration: 1 month after request ExpiresByType image/bmp "now plus 1 month" ExpiresByType image/gif "now plus 1 month" ExpiresByType image/jpeg "now plus 1 month" ExpiresByType image/jp2 "now plus 1 month" ExpiresByType image/pipeg "now plus 1 month" ExpiresByType image/png "now plus 1 month" ExpiresByType image/svg+xml "now plus 1 month" ExpiresByType image/tiff "now plus 1 month" ExpiresByType image/vnd.microsoft.icon "now plus 1 month" ExpiresByType image/x-icon "now plus 1 month" ExpiresByType image/ico "now plus 1 month" ExpiresByType image/icon "now plus 1 month" ExpiresByType text/ico "now plus 1 month" ExpiresByType application/ico "now plus 1 month" ExpiresByType image/vnd.wap.wbmp "now plus 1 month" ExpiresByType application/vnd.wap.wbxml "now plus 1 month" ExpiresByType application/smil "now plus 1 month" # Audio files expiration: 1 month after request ExpiresByType audio/basic "now plus 1 month" ExpiresByType audio/mid "now plus 1 month" ExpiresByType audio/midi "now plus 1 month" ExpiresByType audio/mpeg "now plus 1 month" ExpiresByType audio/x-aiff "now plus 1 month" ExpiresByType audio/x-mpegurl "now plus 1 month" ExpiresByType audio/x-pn-realaudio "now plus 1 month" ExpiresByType audio/x-wav "now plus 1 month" # Movie files expiration: 1 month after request ExpiresByType application/x-shockwave-flash "now plus 1 month" ExpiresByType x-world/x-vrml "now plus 1 month" ExpiresByType video/x-msvideo "now plus 1 month" ExpiresByType video/mpeg "now plus 1 month" ExpiresByType video/mp4 "now plus 1 month" ExpiresByType video/quicktime "now plus 1 month" ExpiresByType video/x-la-asf "now plus 1 month" ExpiresByType video/x-ms-asf "now plus 1 month" # webfonts ExpiresByType font/truetype "access plus 1 month" ExpiresByType font/opentype "access plus 1 month" ExpiresByType application/x-font-woff "access plus 1 month" ExpiresByType image/svg+xml "access plus 1 month" ExpiresByType application/vnd.ms-fontobject "access plus 1 month" </IfModule> Can someone please tell me why it is not being graded by Yslow? Thanks GW

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• a floating toolbar in WTL

  - by freefallr

  I've created a multimedia app that uses DirectShow to display multiple media streams simultaneously. The app is a WTL MDI application. For video windows, I use a CWindowImpl derived class - one per CChildFrame. I'd like to add controls to the video windows (volume ctrls etc). I'd initially thought about adding a slider (volume) control and a couple of buttons to a context menu - but later thought that this might not be the best approach. I was looking at MS Word 2007 - which has a floating toolbar that allows you to change options on highlighted text. I'd like to implement a similar floating toolbar for the video controls. I googled around a bit and found an old post about floating toolbars in WTL. The response was - for a floating toolbar, create a popup window and make it's parent the main window. I think that this sounds like a reasonable approach. my questions: Is this a good approach, or is there a more standard approach for a floating toolbar now in WTL? Should I make the toolbar a child of the video window or the CChildFrame that contains the video window, in order to ensure that it always remains on top of the video? How can I implement transparency in the floating toolbar, as in the floating toolbar in MS word?

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• Optimize GROUP BY&ORDER BY query

  - by Jan Hancic

  I have a web page where users upload&watch videos. Last week I asked what is the best way to track video views so that I could display the most viewed videos this week (videos from all dates). Now I need some help optimizing a query with which I get the videos from the database. The relevant tables are this: video (~239371 rows) VID(int), UID(int), title(varchar), status(enum), type(varchar), is_duplicate(enum), is_adult(enum), channel_id(tinyint) signup (~115440 rows) UID(int), username(varchar) videos_views (~359202 rows after 6 days of collecting data, so this table will grow rapidly) videos_id(int), views_date(date), num_of_views(int) The table video holds the videos, signup hodls users and videos_views holds data about video views (each video can have one row per day in that table). I have this query that does the trick, but takes ~10s to execute, and I imagine this will only get worse over time as the videos_views table grows in size. SELECT v.VID, v.title, v.vkey, v.duration, v.addtime, v.UID, v.viewnumber, v.com_num, v.rate, v.THB, s.username, SUM(vvt.num_of_views) AS tmp_num FROM video v LEFT JOIN videos_views vvt ON v.VID = vvt.videos_id LEFT JOIN signup s on v.UID = s.UID WHERE v.status = 'Converted' AND v.type = 'public' AND v.is_duplicate = '0' AND v.is_adult = '0' AND v.channel_id <> 10 AND vvt.views_date >= '2001-05-11' GROUP BY vvt.videos_id ORDER BY tmp_num DESC LIMIT 8 And here is a screenshot of the EXPLAIN result: So, how can I optimize this?

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• How to Add Proprietary Drivers to Ubuntu 10.04

  - by Matthew Guay

  Does the hardware on your Ubuntu system need proprietary drivers work at peak performance?  Today we take a look how easy version 10.04 makes it to install them. Ubuntu 10.04 finally automatically recognizes and installs drivers for most hardware today, it even recognized and configured Wi-Fi drivers correctly every time in our tests.  This is in contrast to the past, when it was often difficult to get hardware to work in Linux.  However, most video cards still need proprietary drivers from their manufacturer to get full hardware video acceleration. Even though Ubuntu doesn’t include any non-open source components, it still makes it easy to install proprietary drivers if you wish.  When you first install and boot into Ubuntu, you may see a popup informing you that “restricted” drivers are available. You may see a notification asking you if you’d like to install optional drivers from your graphics card manufacturer when you try to enable advanced desktop effects.  Click Enable to directly install the drivers right there. Or, you can select the tray icon from the first popup, and click Install drivers. Alternately, if the tray icon has disappeared, click System, then Administration, and select Hardware Drivers.   This will open a dialog showing all the proprietary drivers available for your system, which may include drivers for your video card and other hardware depending on your computer.  Select the driver you wish to install, and click Activate. Enter your password, and then Ubuntu will download and install the driver without any more input.  After installation you may be prompted to reboot your system. Now, you should be able to take full advantage of your hardware, including fancy desktop effects with hardware acceleration. If you ever wish to remove these drivers, simply re-open the drivers dialog as above, select the driver, and click Remove.  Once again, a reboot may be required to finish the process. Conclusion Ubuntu has definitely made it easier to use Linux on your desktop computer, no matter what hardware you have.  If your video card or other hardware require proprietary drivers, it makes them available and simple to install.  And, best of all, all of your drivers stay updated with your software updates, so you can be sure you’re always running the latest. Similar Articles Productive Geek Tips Adding extra Repositories on UbuntuBackup and Restore Hardware Drivers the Easy Way with Double DriverCopy Windows Drivers From One Machine to AnotherInstalling PHP4 and Apache on UbuntuInstalling PHP5 and Apache on Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 VMware Workstation 7 Acronis Online Backup Gmail Button Addon (Firefox) Hyperwords addon (Firefox) Backup Outlook 2010 Daily Motivator (Firefox) FetchMp3 Can Download Videos & Convert Them to Mp3 Use Flixtime To Create Video Slideshows

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• ADNOC talks about 50x increase in performance

  - by KLaker

  If you are still wondering about how Exadata can revolutionise your business then I would recommend watching this great video which was recorded at this year's OpenWorld. First a little background...The Abu Dhabi National Oil Company for Distribution (ADNOC) is an integrated energy company that was founded in 1973. ADNOC Distribution markets and distributes petroleum products and services within the United Arab Emirates and internationally. As one of the largest and most innovative government-owned petroleum companies in the Arab Gulf, ADNOC Distribution is renowned and respected for the exceptional quality and reliability of its products and services. Its five corporate divisions include more than 200 filling stations (a number that is growing at 8% annually), more than 150 convenience stores, 10 vehicle inspection stations, as well as wholesale and retail sales of bulk fuel, gas, oil, diesel, and lubricants. ADNOC selected Oracle Exadata Database Machine after extensive research because it provided them with a single platform that can run mixed workloads in a single unified machine: "We chose Oracle Exadata Database Machine because it.offered a fully integrated and highly engineered system that was ready to deploy. With our infrastructure running all the same technology, we can operate any type of Oracle Database without restrictions and be prepared for business growth," said Ali Abdul Aziz Al-Ali, IT division manager, ADNOC Distribution. ".....we could consolidate our transaction processing and business intelligence onto one platform. Competing solutions are just not capable of doing that." - Awad Ahmed Ali El-Sidiq, Senior Database Administrator, ADNOC Distribution In this new video Awad Ahmen Ali El Sidddig, Senior DBA at ADNOC, talks about the impact that Exadata has had on his team and the whole business. ADNOC is using our engineered systems to drive and manage all their workloads: from transaction systems to payments system to data warehouse to BI environment. A true Disk-to-Dashboard revolution using Engineered Systems. This engineered approach is delivering 50x improvement in performance with one queries running 100x faster! The IT has even revolutionised some of their data warehouse related processes with the help of Exadata and now jobs that were taking over 4 hours now run in a few minutes.  To watch the video click on the image below which will take you to our Oracle YouTube page: (if the above link does not work, click here: http://www.youtube.com/watch?v=zcRpxc6u5Ic) Now that queries are running 100x faster and jobs are completing in minutes not hours, what is next for the IT team at ADNOC? Like many of our customers ADNOC is now looking to take advantage of big data to help them better align their business operations with customer behaviour and customer insights. To help deliver this next level of insight the IT team is looking at the new features in Oracle Database 12c such as the new in-memory feature to deliver even more performance gains.  The great news is that Awad Ahmen Ali El Sidddig was awarded DBA of the Year - EMEA within our Data Warehouse Global Leaders programme and you can see the badge for this award pop-up at the start of video. Well done to everyone at ADNOC and thanks for spending the time with us at OOW to create this great video.

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• Silverlight Cream for April 03, 2010 -- #829

  - by Dave Campbell

  In this Issue: Scott Marlowe, Nokola, SilverLaw, Brad Abrams, Jeff Wilcox, Jesse Liberty, Alexey Zakharov, ondrejsv, Ward Bell, and David Anson. Shoutouts: Bart Czernicki has a post up about the latest with HTML5: HTML 5 is Born Old - Quake in HTML 5 I was sent a link to shoebox360 a while back and had to sign up to see the Silverlight use, but it does work very nice. I like the panoramic carousel in the viewer: shoebox360 Jeff Handley has a post up on RIA Services - Documentation Guidance and Community Samples... the team is looking for feedback from all of us Shawn Wildermuth posted his My MIX Talks' Source Code Laurent Bugnion posted his Sample code and slides for my TechDays10 (Belgium) talks From SilverlightCream.com: Silverlight to WCF Cross Domain SecurityException Scott Marlowe wrote an article about an often-encountered security exception having to do with cross-domain policies. He details the problem, the response, the solution, and yet another problem/solution associated... good stuff, Scott! Simple Functions for HTML Interop You've seen Nokola's graphic work... how about some HTML Interop from him? He's exposing the code he uses in his work. New Video: ChildWindow Styling - Silverlight 3 SilverLaw has a new video tutorial on Silerlight 3 ChildWindow Styling up - in German - but the video is language-agnostic :) Silverlight 4 + RIA Services - Ready for Business: Exposing WCF (SOAP\WSDL) Services Brad Abrams' continuation in his RIA series is this one demonstrating exposing RIA Services as a Soap\WSDL service Silverlight 4: New parser implementation. New parser features. Jeff Wilcox has a post up highlighting some of the new features in Silverlight 4 such as a new parser implementation with new XAML features. New Video Series – Getting Started With Silverlight Jesse Liberty is starting a new video tutorial series that's going to build out to be a "complete survey of Silverlight programming". The first two are in this post and are Getting Started and Adding Controls to a Silverlight App... looks like good material, Jesse, and all the source is there for the taking as well. Silverlight layout hack: Centered content with fixed maxwidth Alexey Zakharov has a quick tip up on creating centered content with fixed maxwidth. He calls it a dirty trick... looks like code to me :) Silverlight DataForm’s autogenerated fields send empty strings to database ondrejsv points up a problem he had with the Toolkit's DataForm, and his solution to it... with code for all of us following along behind :) DevForce Extensibility With MEF InheritedExport Ward Bell has a post up describing how they got DevForce MEF'd up, and looks like a good post to get you all excited about MEF as well... lots of external links and good info. Tip: Read-only custom DependencyProperties don't exist in Silverlight, but can be closely approximated David Anson's latest Tip is about Read-only custom DependencyProperties in Silverlight -- which strictly is not possible, but he has a code example up that gets close. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Silverlight Cream for March 10, 2010 -- #810

  - by Dave Campbell

  In this Issue: Andrea Boschin, Jeremy Likness(-2-), Andrew Veresov, Nokola, SilverLaw, Gill Cleeren, Jim Wightman and Jeremy Likness, Viktor Larsson(-2-), and Walter Ferrari. Shoutouts: Viktor Larsson has a post up about Silverlight Market Penetration ... hope to meet you at MIX10, Viktor! Gergely Orosz has posted the Slides and code for the presentation “An Introduction to Silverlight” It appears that if I miss a day, I can pretty much do an all-submittal post :) From SilverlightCream.com: Writing an AsyncLoader to enqueue long running operations Andrea Boschin has a tutorial on SilverlightShow where he's building up an asynch service to deal with a long-running app on the server. MVVM with MEF in Silverlight: Video Tutorial Jeremy Likness has a video tutorial up for helping beginners wire up MVVM and MEF to Silverlight. Source code for the app in the video is downloadable. MVVM with MEF in Silverlight Video Tutorial Part 2: Plugins and Metadata In part 2, Jeremy Likness redesigns the app using metadata to turn the shapes into objects, and then show how easy it is to add a new plugin... and the source for the app is downloadable. Binding a Converter Parameter Andrew Veresov has a nice code-filled solution up for those times that you need to bind a ConverterParameter value. EasyPainter: Lion Hair styling Nokola has not been idle with Easy Painter... now he's added "Lion Hair" to the list of stylings you can apply... guess if you want to change someone's 'mane' ... sorry! Twisting Navigation - Silverlight 3 SilverLaw has another control up - a "Twisting Navigation" control... very cool :) ... and since I'm behind the curve, he already has an update in the Expression Gallery as noted in his post, and a video tutorial on implementing it in an application... and if you understand German, turn up the sound :) Uploading and downloading images using a WCF service with Silverlight Gill Cleeren has a tutorial up at SilverlightShow on uploading and downloading images using WCF Services in Silverlight New Windows Phone 7 Community Developer Hub Jim Wightman and Jeremy Likness have a very cool Silverlight page up where you can paste the URL of your XAP in and have it display in a "Windows 7 Series Phone" ... and that's all I'm saying about that. XAML Transformation 101 Viktor Larsson is discussing Transforms in XAML and has a nice tutorial up that is easily the beginning of a carousel... you may also want to check out his other posts... I'm adding him to my list. Silverlight 4 Webcam Demo In this post, Viktor Larsson has a tutorial up for using the WebCam. This is from a beginner perspective, so if you haven't jumped in, now's a good time. How to extend Bing Maps Silverlight with an elevation profile graph - Part 1 Walter Ferrari has a post up at SilverlightShow discussing extensions to BingMaps such as creating routes using GeoCoding and Route Services plus drawing lines on the maps and getting coordinates of the points. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    MIX10

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• Fast Data: Go Big. Go Fast.

  - by Dain C. Hansen

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 For those of you who may have missed it, today’s second full day of Oracle OpenWorld 2012 started with a rumpus. Joe Tucci, from EMC outlined the human face of big data with real examples of how big data is transforming our world. And no not the usual tried-and-true weblog examples, but real stories about taxi cab drivers in Singapore using big data to better optimize their routes as well as folks just trying to get a better hair cut. Next we heard from Thomas Kurian who talked at length about the important platform characteristics of Oracle’s Cloud and more specifically Oracle’s expanded Cloud Services portfolio. Especially interesting to our integration customers are the messaging support for Oracle’s Cloud applications. What this means is that now Oracle’s Cloud applications have a lightweight integration fabric that on-premise applications can communicate to it via REST-APIs using Oracle SOA Suite. It’s an important element to our strategy at Oracle that supports this idea that whether your requirements are for private or public, Oracle has a solution in the Cloud for all of your applications and we give you more deployment choice than any vendor. If this wasn’t enough to get the juices flowing, later that morning we heard from Hasan Rizvi who outlined in his Fusion Middleware session the four most important enterprise imperatives: Social, Mobile, Cloud, and a brand new one: Fast Data. Today, Rizvi made an important step in the definition of this term to explain that he believes it’s a convergence of four essential technology elements: Event Processing for event filtering, business rules – with Oracle Event Processing Data Transformation and Loading - with Oracle Data Integrator Real-time replication and integration – with Oracle GoldenGate Analytics and data discovery – with Oracle Business Intelligence Each of these four elements can be considered (and architect-ed) together on a single integrated platform that can help customers integrate any type of data (structured, semi-structured) leveraging new styles of big data technologies (MapReduce, HDFS, Hive, NoSQL) to process more volume and variety of data at a faster velocity with greater results.  Fast data processing (and especially real-time) has always been our credo at Oracle with each one of these products in Fusion Middleware. For example, Oracle GoldenGate continues to be made even faster with the recent 11g R2 Release of Oracle GoldenGate which gives us some even greater optimization to Oracle Database with Integrated Capture, as well as some new heterogeneity capabilities. With Oracle Data Integrator with Big Data Connectors, we’re seeing much improved performance by running MapReduce transformations natively on Hadoop systems. And with Oracle Event Processing we’re seeing some remarkable performance with customers like NTT Docomo. Check out their upcoming session at Oracle OpenWorld on Wednesday to hear more how this customer is using Event processing and Big Data together. If you missed any of these sessions and keynotes, not to worry. There's on-demand versions available on the Oracle OpenWorld website. You can also checkout our upcoming webcast where we will outline some of these new breakthroughs in Data Integration technologies for Big Data, Cloud, and Real-time in more details. /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Calibri","sans-serif"; mso-bidi-font-family:"Times New Roman";}

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• Dual Screen will only mirror after 12.04 upgrade

  - by Ne0

  I have been using Ubuntu with a dual screen for years now, after upgrading to 12.04 LTS i cannot get my dual screen working properly Graphics: 01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV350 AR [Radeon 9600] 01:00.1 Display controller: Advanced Micro Devices [AMD] nee ATI RV350 AR [Radeon 9600] (Secondary) I noticed i was using open source drivers and attempted to install official binaries using the methods in this thread. Output: liam@liam-desktop:~$ sudo apt-get install fglrx fglrx-amdcccle Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be upgraded: fglrx fglrx-amdcccle 2 upgraded, 0 newly installed, 0 to remove and 12 not upgraded. Need to get 45.1 MB of archives. After this operation, 739 kB of additional disk space will be used. Get:1 http://gb.archive.ubuntu.com/ubuntu/ precise/restricted fglrx i386 2:8.960-0ubuntu1 [39.2 MB] Get:2 http://gb.archive.ubuntu.com/ubuntu/ precise/restricted fglrx-amdcccle i386 2:8.960-0ubuntu1 [5,883 kB] Fetched 45.1 MB in 1min 33s (484 kB/s) (Reading database ... 328081 files and directories currently installed.) Preparing to replace fglrx 2:8.951-0ubuntu1 (using .../fglrx_2%3a8.960-0ubuntu1_i386.deb) ... Removing all DKMS Modules Error! There are no instances of module: fglrx 8.951 located in the DKMS tree. Done. Unpacking replacement fglrx ... Preparing to replace fglrx-amdcccle 2:8.951-0ubuntu1 (using .../fglrx-amdcccle_2%3a8.960-0ubuntu1_i386.deb) ... Unpacking replacement fglrx-amdcccle ... Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot Setting up fglrx (2:8.960-0ubuntu1) ... update-alternatives: warning: forcing reinstallation of alternative /usr/lib/fglrx/ld.so.conf because link group i386-linux-gnu_gl_conf is broken. update-alternatives: warning: skip creation of /etc/OpenCL/vendors/amdocl64.icd because associated file /usr/lib/fglrx/etc/OpenCL/vendors/amdocl64.icd (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalcl.so because associated file /usr/lib32/fglrx/libaticalcl.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalrt.so because associated file /usr/lib32/fglrx/libaticalrt.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: forcing reinstallation of alternative /usr/lib/fglrx/ld.so.conf because link group i386-linux-gnu_gl_conf is broken. update-alternatives: warning: skip creation of /etc/OpenCL/vendors/amdocl64.icd because associated file /usr/lib/fglrx/etc/OpenCL/vendors/amdocl64.icd (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalcl.so because associated file /usr/lib32/fglrx/libaticalcl.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-alternatives: warning: skip creation of /usr/lib32/libaticalrt.so because associated file /usr/lib32/fglrx/libaticalrt.so (of link group i386-linux-gnu_gl_conf) doesn't exist. update-initramfs: deferring update (trigger activated) update-initramfs: Generating /boot/initrd.img-3.2.0-25-generic-pae Loading new fglrx-8.960 DKMS files... Building only for 3.2.0-25-generic-pae Building for architecture i686 Building initial module for 3.2.0-25-generic-pae Done. fglrx: Running module version sanity check. - Original module - No original module exists within this kernel - Installation - Installing to /lib/modules/3.2.0-25-generic-pae/updates/dkms/ depmod....... DKMS: install completed. update-initramfs: deferring update (trigger activated) Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Setting up fglrx-amdcccle (2:8.960-0ubuntu1) ... Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-3.2.0-25-generic-pae Processing triggers for libc-bin ... ldconfig deferred processing now taking place liam@liam-desktop:~$ sudo aticonfig --initial -f aticonfig: No supported adapters detected When i attempt to get my settings back to what they were before upgrading i get this message requested position/size for CRTC 81 is outside the allowed limit: position=(1440, 0), size=(1440, 900), maximum=(1680, 1680) and GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._gnome_2drr_2derror_2dquark.Code3: requested position/size for CRTC 81 is outside the allowed limit: position=(1440, 0), size=(1440, 900), maximum=(1680, 1680) Any idea's on what i need to do to fix this issue?

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• ANTS Memory Profiler 7.0 Review

  - by Michael B. McLaughlin

  (This is my first review as a part of the GeeksWithBlogs.net Influencers program. It’s a program in which I (and the others who have been selected for it) get the opportunity to check out new products and services and write reviews about them. We don’t get paid for this, but we do generally get to keep a copy of the software or retain an account for some period of time on the service that we review. In this case I received a copy of Red Gate Software’s ANTS Memory Profiler 7.0, which was released in January. I don’t have any upgrade rights nor is my review guided, restrained, influenced, or otherwise controlled by Red Gate or anyone else. But I do get to keep the software license. I will always be clear about what I received whenever I do a review – I leave it up to you to decide whether you believe I can be objective. I believe I can be. If I used something and really didn’t like it, keeping a copy of it wouldn’t be worth anything to me. In that case though, I would simply uninstall/deactivate/whatever the software or service and tell the company what I didn’t like about it so they could (hopefully) make it better in the future. I don’t think it’d be polite to write up a terrible review, nor do I think it would be a particularly good use of my time. There are people who get paid for a living to review things, so I leave it to them to tell you what they think is bad and why. I’ll only spend my time telling you about things I think are good.) Overview of Common .NET Memory Problems When coming to land of managed memory from the wilds of unmanaged code, it’s easy to say to one’s self, “Wow! Now I never have to worry about memory problems again!” But this simply isn’t true. Managed code environments, such as .NET, make many, many things easier. You will never have to worry about memory corruption due to a bad pointer, for example (unless you’re working with unsafe code, of course). But managed code has its own set of memory concerns. For example, failing to unsubscribe from events when you are done with them leaves the publisher of an event with a reference to the subscriber. If you eliminate all your own references to the subscriber, then that memory is effectively lost since the GC won’t delete it because of the publishing object’s reference. When the publishing object itself becomes subject to garbage collection then you’ll get that memory back finally, but that could take a very long time depending of the life of the publisher. Another common source of resource leaks is failing to properly release unmanaged resources. When writing a class that contains members that hold unmanaged resources (e.g. any of the Stream-derived classes, IsolatedStorageFile, most classes ending in “Reader” or “Writer”), you should always implement IDisposable, making sure to use a properly written Dispose method. And when you are using an instance of a class that implements IDisposable, you should always make sure to use a 'using' statement in order to ensure that the object’s unmanaged resources are disposed of properly. (A ‘using’ statement is a nicer, cleaner looking, and easier to use version of a try-finally block. The compiler actually translates it as though it were a try-finally block. Note that Code Analysis warning 2202 (CA2202) will often be triggered by nested using blocks. A properly written dispose method ensures that it only runs once such that calling dispose multiple times should not be a problem. Nonetheless, CA2202 exists and if you want to avoid triggering it then you should write your code such that only the innermost IDisposable object uses a ‘using’ statement, with any outer code making use of appropriate try-finally blocks instead). Then, of course, there are situations where you are operating in a memory-constrained environment or else you want to limit or even eliminate allocations within a certain part of your program (e.g. within the main game loop of an XNA game) in order to avoid having the GC run. On the Xbox 360 and Windows Phone 7, for example, for every 1 MB of heap allocations you make, the GC runs; the added time of a GC collection can cause a game to drop frames or run slowly thereby making it look bad. Eliminating allocations (or else minimizing them and calling an explicit Collect at an appropriate time) is a common way of avoiding this (the other way is to simplify your heap so that the GC’s latency is low enough not to cause performance issues). ANTS Memory Profiler 7.0 When the opportunity to review Red Gate’s recently released ANTS Memory Profiler 7.0 arose, I jumped at it. In order to review it, I was given a free copy (which does not include upgrade rights for future versions) which I am allowed to keep. For those of you who are familiar with ANTS Memory Profiler, you can find a list of new features and enhancements here. If you are an experienced .NET developer who is familiar with .NET memory management issues, ANTS Memory Profiler is great. More importantly still, if you are new to .NET development or you have no experience or limited experience with memory profiling, ANTS Memory Profiler is awesome. From the very beginning, it guides you through the process of memory profiling. If you’re experienced and just want dive in however, it doesn’t get in your way. The help items GAHSFLASHDAJLDJA are well designed and located right next to the UI controls so that they are easy to find without being intrusive. When you first launch it, it presents you with a “Getting Started” screen that contains links to “Memory profiling video tutorials”, “Strategies for memory profiling”, and the “ANTS Memory Profiler forum”. I’m normally the kind of person who looks at a screen like that only to find the “Don’t show this again” checkbox. Since I was doing a review, though, I decided I should examine them. I was pleasantly surprised. The overview video clocks in at three minutes and fifty seconds. It begins by showing you how to get started profiling an application. It explains that profiling is done by taking memory snapshots periodically while your program is running and then comparing them. ANTS Memory Profiler (I’m just going to call it “ANTS MP” from here) analyzes these snapshots in the background while your application is running. It briefly mentions a new feature in Version 7, a new API that give you the ability to trigger snapshots from within your application’s source code (more about this below). You can also, and this is the more common way you would do it, take a memory snapshot at any time from within the ANTS MP window by clicking the “Take Memory Snapshot” button in the upper right corner. The overview video goes on to demonstrate a basic profiling session on an application that pulls information from a database and displays it. It shows how to switch which snapshots you are comparing, explains the different sections of the Summary view and what they are showing, and proceeds to show you how to investigate memory problems using the “Instance Categorizer” to track the path from an object (or set of objects) to the GC’s root in order to find what things along the path are holding a reference to it/them. For a set of objects, you can then click on it and get the “Instance List” view. This displays all of the individual objects (including their individual sizes, values, etc.) of that type which share the same path to the GC root. You can then click on one of the objects to generate an “Instance Retention Graph” view. This lets you track directly up to see the reference chain for that individual object. In the overview video, it turned out that there was an event handler which was holding on to a reference, thereby keeping a large number of strings that should have been freed in memory. Lastly the video shows the “Class List” view, which lets you dig in deeply to find problems that might not have been clear when following the previous workflow. Once you have at least one memory snapshot you can begin analyzing. The main interface is in the “Analysis” tab. You can also switch to the “Session Overview” tab, which gives you several bar charts highlighting basic memory data about the snapshots you’ve taken. If you hover over the individual bars (and the individual colors in bars that have more than one), you will see a detailed text description of what the bar is representing visually. The Session Overview is good for a quick summary of memory usage and information about the different heaps. You are going to spend most of your time in the Analysis tab, but it’s good to remember that the Session Overview is there to give you some quick feedback on basic memory usage stats. As described above in the summary of the overview video, there is a certain natural workflow to the Analysis tab. You’ll spin up your application and take some snapshots at various times such as before and after clicking a button to open a window or before and after closing a window. Taking these snapshots lets you examine what is happening with memory. You would normally expect that a lot of memory would be freed up when closing a window or exiting a document. By taking snapshots before and after performing an action like that you can see whether or not the memory is really being freed. If you already know an area that’s giving you trouble, you can run your application just like normal until just before getting to that part and then you can take a few strategic snapshots that should help you pin down the problem. Something the overview didn’t go into is how to use the “Filters” section at the bottom of ANTS MP together with the Class List view in order to narrow things down. The video tutorials page has a nice 3 minute intro video called “How to use the filters”. It’s a nice introduction and covers some of the basics. I’m going to cover a bit more because I think they’re a really neat, really helpful feature. Large programs can bring up thousands of classes. Even simple programs can instantiate far more classes than you might realize. In a basic .NET 4 WPF application for example (and when I say basic, I mean just MainWindow.xaml with a button added to it), the unfiltered Class List view will have in excess of 1000 classes (my simple test app had anywhere from 1066 to 1148 classes depending on which snapshot I was using as the “Current” snapshot). This is amazing in some ways as it shows you how in stark detail just how immensely powerful the WPF framework is. But hunting through 1100 classes isn’t productive, no matter how cool it is that there are that many classes instantiated and doing all sorts of awesome things. Let’s say you wanted to examine just the classes your application contains source code for (in my simple example, that would be the MainWindow and App). Under “Basic Filters”, click on “Classes with source” under “Show only…”. Voilà. Down from 1070 classes in the snapshot I was using as “Current” to 2 classes. If you then click on a class’s name, it will show you (to the right of the class name) two little icon buttons. Hover over them and you will see that you can click one to view the Instance Categorizer for the class and another to view the Instance List for the class. You can also show classes based on which heap they live on. If you chose both a Baseline snapshot and a Current snapshot then you can use the “Comparing snapshots” filters to show only: “New objects”; “Surviving objects”; “Survivors in growing classes”; or “Zombie objects” (if you aren’t sure what one of these means, you can click the helpful “?” in a green circle icon to bring up a popup that explains them and provides context). Remember that your selection(s) under the “Show only…” heading will still apply, so you should update those selections to make sure you are seeing the view you want. There are also links under the “What is my memory problem?” heading that can help you diagnose the problems you are seeing including one for “I don’t know which kind I have” for situations where you know generally that your application has some problems but aren’t sure what the behavior you have been seeing (OutOfMemoryExceptions, continually growing memory usage, larger memory use than expected at certain points in the program). The Basic Filters are not the only filters there are. “Filter by Object Type” gives you the ability to filter by: “Objects that are disposable”; “Objects that are/are not disposed”; “Objects that are/are not GC roots” (GC roots are things like static variables); and “Objects that implement _______”. “Objects that implement” is particularly neat. Once you check the box, you can then add one or more classes and interfaces that an object must implement in order to survive the filtering. Lastly there is “Filter by Reference”, which gives you the option to pare down the list based on whether an object is “Kept in memory exclusively by” a particular item, a class/interface, or a namespace; whether an object is “Referenced by” one or more of those choices; and whether an object is “Never referenced by” one or more of those choices. Remember that filtering is cumulative, so anything you had set in one of the filter sections still remains in effect unless and until you go back and change it. There’s quite a bit more to ANTS MP – it’s a very full featured product – but I think I touched on all of the most significant pieces. You can use it to debug: a .NET executable; an ASP.NET web application (running on IIS); an ASP.NET web application (running on Visual Studio’s built-in web development server); a Silverlight 4 browser application; a Windows service; a COM+ server; and even something called an XBAP (local XAML browser application). You can also attach to a .NET 4 process to profile an application that’s already running. The startup screen also has a large number of “Charting Options” that let you adjust which statistics ANTS MP should collect. The default selection is a good, minimal set. It’s worth your time to browse through the charting options to examine other statistics that may also help you diagnose a particular problem. The more statistics ANTS MP collects, the longer it will take to collect statistics. So just turning everything on is probably a bad idea. But the option to selectively add in additional performance counters from the extensive list could be a very helpful thing for your memory profiling as it lets you see additional data that might provide clues about a particular problem that has been bothering you. ANTS MP integrates very nicely with all versions of Visual Studio that support plugins (i.e. all of the non-Express versions). Just note that if you choose “Profile Memory” from the “ANTS” menu that it will launch profiling for whichever project you have set as the Startup project. One quick tip from my experience so far using ANTS MP: if you want to properly understand your memory usage in an application you’ve written, first create an “empty” version of the type of project you are going to profile (a WPF application, an XNA game, etc.) and do a quick profiling session on that so that you know the baseline memory usage of the framework itself. By “empty” I mean just create a new project of that type in Visual Studio then compile it and run it with profiling – don’t do anything special or add in anything (except perhaps for any external libraries you’re planning to use). The first thing I tried ANTS MP out on was a demo XNA project of an editor that I’ve been working on for quite some time that involves a custom extension to XNA’s content pipeline. The first time I ran it and saw the unmanaged memory usage I was convinced I had some horrible bug that was creating extra copies of texture data (the demo project didn’t have a lot of texture data so when I saw a lot of unmanaged memory I instantly figured I was doing something wrong). Then I thought to run an empty project through and when I saw that the amount of unmanaged memory was virtually identical, it dawned on me that the CLR itself sits in unmanaged memory and that (thankfully) there was nothing wrong with my code! Quite a relief. Earlier, when discussing the overview video, I mentioned the API that lets you take snapshots from within your application. I gave it a quick trial and it’s very easy to integrate and make use of and is a really nice addition (especially for projects where you want to know what, if any, allocations there are in a specific, complicated section of code). The only concern I had was that if I hadn’t watched the overview video I might never have known it existed. Even then it took me five minutes of hunting around Red Gate’s website before I found the “Taking snapshots from your code" article that explains what DLL you need to add as a reference and what method of what class you should call in order to take an automatic snapshot (including the helpful warning to wrap it in a try-catch block since, under certain circumstances, it can raise an exception, such as trying to call it more than 5 times in 30 seconds. The difficulty in discovering and then finding information about the automatic snapshots API was one thing I thought could use improvement. Another thing I think would make it even better would be local copies of the webpages it links to. Although I’m generally always connected to the internet, I imagine there are more than a few developers who aren’t or who are behind very restrictive firewalls. For them (and for me, too, if my internet connection happens to be down), it would be nice to have those documents installed locally or to have the option to download an additional “documentation” package that would add local copies. Another thing that I wish could be easier to manage is the Filters area. Finding and setting individual filters is very easy as is understanding what those filter do. And breaking it up into three sections (basic, by object, and by reference) makes sense. But I could easily see myself running a long profiling session and forgetting that I had set some filter a long while earlier in a different filter section and then spending quite a bit of time trying to figure out why some problem that was clearly visible in the data wasn’t showing up in, e.g. the instance list before remembering to check all the filters for that one setting that was only culling a few things from view. Some sort of indicator icon next to the filter section names that appears you have at least one filter set in that area would be a nice visual clue to remind me that “oh yeah, I told it to only show objects on the Gen 2 heap! That’s why I’m not seeing those instances of the SuperMagic class!” Something that would be nice (but that Red Gate cannot really do anything about) would be if this could be used in Windows Phone 7 development. If Microsoft and Red Gate could work together to make this happen (even if just on the WP7 emulator), that would be amazing. Especially given the memory constraints that apps and games running on mobile devices need to work within, a good memory profiler would be a phenomenally helpful tool. If anyone at Microsoft reads this, it’d be really great if you could make something like that happen. Perhaps even a (subsidized) custom version just for WP7 development. (For XNA games, of course, you can create a Windows version of the game and use ANTS MP on the Windows version in order to get a better picture of your memory situation. For Silverlight on WP7, though, there’s quite a bit of educated guess work and WeakReference creation followed by forced collections in order to find the source of a memory problem.) The only other thing I found myself wanting was a “Back” button. Between my Windows Phone 7, Zune, and other things, I’ve grown very used to having a “back stack” that lets me just navigate back to where I came from. The ANTS MP interface is surprisingly easy to use given how much it lets you do, and once you start using it for any amount of time, you learn all of the different areas such that you know where to go. And it does remember the state of the areas you were previously in, of course. So if you go to, e.g., the Instance Retention Graph from the Class List and then return back to the Class List, it will remember which class you had selected and all that other state information. Still, a “Back” button would be a welcome addition to a future release. Bottom Line ANTS Memory Profiler is not an inexpensive tool. But my time is valuable. I can easily see ANTS MP saving me enough time tracking down memory problems to justify it on a cost basis. More importantly to me, knowing what is happening memory-wise in my programs and having the confidence that my code doesn’t have any hidden time bombs in it that will cause it to OOM if I leave it running for longer than I do when I spin it up real quickly for debugging or just to see how a new feature looks and feels is a good feeling. It’s a feeling that I like having and want to continue to have. I got the current version for free in order to review it. Having done so, I’ve now added it to my must-have tools and will gladly lay out the money for the next version when it comes out. It has a 14 day free trial, so if you aren’t sure if it’s right for you or if you think it seems interesting but aren’t really sure if it’s worth shelling out the money for it, give it a try.

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• From Zero To Deployed Contest&ndash;Prizes Announced

  - by Robz / Fervent Coder

  Do you have what it takes to meet the challenge? We’ll make it worth it. You may have noticed at the end of my last post I threw down the community challenge to get from zero to deployed faster than me. The Challenge My time was 13:48 to be from zero to deployed. Beat my time and show it in a video response. The person with the best time by March 15th @ 11:59PM CST will receive a prize. Here are the links to the videos: #1 - http://www.youtube.com/watch?v=cZIUVfHWsbc #2 - http://www.youtube.com/watch?v=l7WluaXIya0 #3 - http://www.youtube.com/watch?v=IqPh7wbWsLc The Rules Let’s revisit those ground rules before I tell you what the prizes will be: Ground rules: .NET Application with a valid database connection Start from Zero Deployed with AppHarbor or an alternative A timer displayed in the video that runs during the entire process Video response published on YouTube or acceptable alternative Video(s) must be published by March 15th at 11:59PM CST. Either post the link here as a comment or on YouTube as a response (also by 11:59PM CST March 15th) The Prizes The prize package for the best time is:                      $50 Gift Card or equivalent – Provided by yours truly. AppHarbor $100 service credit – AppHarbor will provide a $100 credit for their services once they launch payments. Thank you to the folks at AppHarbor! ReSharper - Jetbrains will provide a FULL license of ReSharper Personal. This license is a $199 value. Thank you to the folks at Jetbrains! Telerik Ultimate Collection for .NET – Telerik will provide a license to pretty much every .NET tool they offer. This license is a $1999 value. A big thank you to the folks at Telerik!! This is a total value of $2348!!! The prize package for the person that has the most creative video(s) with a time better than mine (if there are at least 5 responses):           $20 Gift card or equivalent – Provided by this guy. AppHarbor $50 service credit – same deal as above. Thank you AppHarbor! Twilio T-Shirt - Twilio has donated a shirt and will ship your size to you (this may be subject to US residents only). This is a $25 value. Thank you to the folks at Twilio!

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• Finding the lowest average Hamming distance when the order of the strings matter

  - by user1049697

  I have a sequence of binary strings that I want to find a match for among a set of longer sequences of binary strings. A match means that the compared sequence gives the lowest average Hamming distance when all elements in the shorter sequence have been matched against a sequence in one of the longer sets. Let me try to explain with an example. I have a set of video frames that have been hashed using a perceptual hashing algorithm so that the video frames that look the same has roughly the same hash. I want to match a short video clip against a set of longer videos, to see if the clip is contained in one of these. This means that I need to find out where the sequence of the hashed frames in the short video has the lowest average Hamming distance when compared with the long videos. The short video is the sub strings Sub1, Sub2 and Sub3, and I want to match them against the hashes of the long videos in Src. The clue here is that the strings need to match in the specific order that they are given in, e.g. that Sub1 always has to match the element before Sub2, and Sub2 always has to match the element before Sub3. In this example it would map thusly: Sub1-Src3, Sub2-Src4 and Sub3-Src5. So the question is this: is there an algorithm for finding the lowest average Hamming distance when the order of the elements compared matter? The naïve approach to compare the substring sequence to every source string won't cut it of course, so I need something that preferably can match a (much) shorter sub string to a set of million of elements. I have looked at MVP-trees, BK-trees and similar, but everything seems to only take into account one binary string and not a sequence of them. Sub1: 100111011111011101 Sub2: 110111000010010100 Sub3: 111111010110101101 Src1: 001011010001010110 Src2: 010111101000111001 Src3: 101111001110011101 Src4: 010111100011010101 Src5: 001111010110111101 Src6: 101011111111010101 I have added a calculation of the examples below. (The Hamming distances aren't correct, but it doesn't matter) **Run 1.** dist(Sub1, Src1) = 8 dist(Sub2, Src2) = 10 dist(Sub3, Src3) = 12 average = 10 **Run 2.** dist(Sub1, Src2) = 10 dist(Sub2, Src3) = 12 dist(Sub3, Src4) = 10 average = 11 **Run 3.** dist(Sub1, Src3) = 7 dist(Sub2, Src4) = 6 dist(Sub3, Src5) = 10 average = 8 **Run 4.** dist(Sub1, Src3) = 10 dist(Sub2, Src4) = 4 dist(Sub3, Src5) = 2 average = 5 So the winner here is sequence 4 with an average distance of 5.

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• Fast Data - Big Data's achilles heel

  - by thegreeneman

  At OOW 2013 in Mark Hurd and Thomas Kurian's keynote, they discussed Oracle's Fast Data software solution stack and discussed a number of customers deploying Oracle's Big Data / Fast Data solutions and in particular Oracle's NoSQL Database.  Since that time, there have been a large number of request seeking clarification on how the Fast Data software stack works together to deliver on the promise of real-time Big Data solutions.   Fast Data is a software solution stack that deals with one aspect of Big Data, high velocity.   The software in the Fast Data solution stack involves 3 key pieces and their integration:  Oracle Event Processing, Oracle Coherence, Oracle NoSQL Database.   All three of these technologies address a high throughput, low latency data management requirement.   Oracle Event Processing enables continuous query to filter the Big Data fire hose, enable intelligent chained events to real-time service invocation and augments the data stream to provide Big Data enrichment. Extended SQL syntax allows the definition of sliding windows of time to allow SQL statements to look for triggers on events like breach of weighted moving average on a real-time data stream.    Oracle Coherence is a distributed, grid caching solution which is used to provide very low latency access to cached data when the data is too big to fit into a single process, so it is spread around in a grid architecture to provide memory latency speed access.  It also has some special capabilities to deploy remote behavioral execution for "near data" processing.   The Oracle NoSQL Database is designed to ingest simple key-value data at a controlled throughput rate while providing data redundancy in a cluster to facilitate highly concurrent low latency reads.  For example, when large sensor networks are generating data that need to be captured while analysts are simultaneously extracting the data using range based queries for upstream analytics.  Another example might be storing cookies from user web sessions for ultra low latency user profile management, also leveraging that data using holistic MapReduce operations with your Hadoop cluster to do segmented site analysis.  Understand how NoSQL plays a critical role in Big Data capture and enrichment while simultaneously providing a low latency and scalable data management infrastructure thru clustered, always on, parallel processing in a shared nothing architecture. Learn how easily a NoSQL cluster can be deployed to provide essential services in industry specific Fast Data solutions. See these technologies work together in a demonstration highlighting the salient features of these Fast Data enabling technologies in a location based personalization service. The question then becomes how do these things work together to deliver an end to end Fast Data solution.  The answer is that while different applications will exhibit unique requirements that may drive the need for one or the other of these technologies, often when it comes to Big Data you may need to use them together.   You may have the need for the memory latencies of the Coherence cache, but just have too much data to cache, so you use a combination of Coherence and Oracle NoSQL to handle extreme speed cache overflow and retrieval.   Here is a great reference to how these two technologies are integrated and work together.  Coherence & Oracle NoSQL Database.   On the stream processing side, it is similar as with the Coherence case.  As your sliding windows get larger, holding all the data in the stream can become difficult and out of band data may need to be offloaded into persistent storage.  OEP needs an extreme speed database like Oracle NoSQL Database to help it continue to perform for the real time loop while dealing with persistent spill in the data stream.  Here is a great resource to learn more about how OEP and Oracle NoSQL Database are integrated and work together.  OEP & Oracle NoSQL Database.

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• Cannot get ATI Drivers installed

  - by bittoast67

  I am trying to install the Catalyst driver. The best I can get is a strange resolution problem and firefox acts all wonkt. The worst I have gotten is low graphics mode in which I just reinstall Ubuntu. I have a HP Pavilion Dv7 laptop. With Radeon 3200 HD. I plan to try again with a fresh install of Ubuntu 12.4.3 as I have heard its the most compatible. This is what I have done: I have tried just the easy way of going to synaptic and installing the drivers that way. the fglrx package (not the fglrx update). And if memory serves I think that boots me into low graphics mode. So, fresh install of Ubuntu and tried again. I have done everything a couple times from this site (http://wiki.cchtml.com/index.php/Ubuntu_Precise_Installation_Guide) following every instruction to a T. That gets me something, such as a lowered fan speed and a much cooler computer, but I also lose most of my resolution. And displays says its the best resolution I can get. I also have a very screwy firefox. Using this method I can see AMD Catalyst Control Center in my dash (two of them really one administrator and one not) but when I try to open it it says no amd driver detected. So again, ubuntu reinstall. I have tried the GUI method from the Legacy driver I got from AMD's site. It runs through smoothly and at the very end after I exit the installer it gives me an error. I have also tried various other methods using terminal, as well as various different drivers (the one from the amd's site and the one suggested in the above link for my graphics card) both to no avail. When I try the method in the link on number 2, and I get the super low res and screwy fire fox. I type in, fglrxinfo ,and get a badrequest error. I have yet to type in fglrxinfo and get anything like what I am supposed to. UPDATE: I am now currently reinstalling Ubuntu 12.4. I tried the above mentioned link - thank you very much!- just to see on the previously failed driver attempt by following the purge commands. And to no avail when typing fglrxinfo I still get the badrequest thing. I will update again after a try with a true fresh install. Thanks again!! UPDATE: Alright everyone. Still no go. I have done everything word per word in the provided tutorial. I have rebooted my computer again to a fucked up resolution and this is what I get when typing fglrxinfo: $ fglrxinfo X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 153 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 12 Current serial number in output stream: 12 I would like to add that when installing this file: fglrx_8.970-0ubuntu1_amd64.deb I got this: Building initial module for 3.8.0-29-generic Error! Bad return status for module build on kernel: 3.8.0-29-generic (x86_64) Consult /var/lib/dkms/fglrx/8.970/build/make.log for more information. update-initramfs: deferring update (trigger activated) Processing triggers for ureadahead ... Processing triggers for bamfdaemon ... Rebuilding /usr/share/applications/bamf.index... Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-3.8.0-29-generic Processing triggers for libc-bin ... ldconfig deferred processing now taking place Any ideas? Anyone? I cant for the life of me figure out what I am doing wrong.

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• use stream_socket_client to retrieve 2 remote files at the same time

  - by Hintswen

  I have a script in PHP which retrieves two very similar files and performs some tasks on the data then outputs a result. I'm currently using curl and getting one, processing it, then getting the other and processing it. I want to switch to stream_socket_client as I've heard you can retrieve both files at the same time and do the processing once they have been retrieved but I am unsure how to do this.

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• WFP: How do you properly Bind a DependencyProperty to the GUI

  - by Robert Ross

  I have the following class (abreviated for simplicity). The app it multi-threaded so the Set and Get are a bit more complicated but should be ok. namespace News.RSS { public class FeedEngine : DependencyObject { public static readonly DependencyProperty _processing = DependencyProperty.Register("Processing", typeof(bool), typeof(FeedEngine), new FrameworkPropertyMetadata(true, FrameworkPropertyMetadataOptions.AffectsRender)); public bool Processing { get { return (bool)this.Dispatcher.Invoke( DispatcherPriority.Normal, (DispatcherOperationCallback)delegate { return GetValue(_processing); }, Processing); } set { this.Dispatcher.BeginInvoke(DispatcherPriority.Normal, (SendOrPostCallback)delegate { SetValue(_processing, value); }, value); } } public void Poll() { while (Running) { Processing = true; //Do my work to read the data feed from remote source Processing = false; Thread.Sleep(PollRate); } // } } } Next I have my main form as the following: <Window x:Class="News.Main" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:converter="clr-namespace:News.Converters" xmlns:local="clr-namespace:News.Lookup" xmlns:rss="clr-namespace:News.RSS" Title="News" Height="521" Width="927" Initialized="Window_Initialized" Closing="Window_Closing" > <Window.Resources> <ResourceDictionary> <converter:BooleanConverter x:Key="boolConverter" /> <converter:ArithmeticConverter x:Key="arithConverter" /> ... </ResourceDictionary> </Window.Resources> <DockPanel Name="dockPanel1" SnapsToDevicePixels="False" > <ToolBarPanel Height="37" Name="toolBarPanel" Orientation="Horizontal" DockPanel.Dock="Top" > <ToolBarPanel.Children> <Button DataContext="{DynamicResource FeedEngine}" HorizontalAlignment="Right" Name="btnSearch" ToolTip="Search" Click="btnSearch_Click" IsEnabled="{Binding Path=Processing, Converter={StaticResource boolConverter}}"> <Image Width="32" Height="32" Name="imgSearch" Source="{Resx ResxName=News.Properties.Resources, Key=Search}" /> </Button> ... </DockPanel> </Window> As you can see I set the DataContext to FeedEngine and Bind IsEnabled to Processing. I have also tested the boolConverter separately and it functions (just applies ! (Not) to a bool). Here is my Main window code behind in case it helps to debug. namespace News { /// <summary> /// Interaction logic for Main.xaml /// </summary> public partial class Main : Window { public FeedEngine _engine; List<NewsItemControl> _newsItems = new List<NewsItemControl>(); Thread _pollingThread; public Main() { InitializeComponent(); this.Show(); } private void Window_Initialized(object sender, EventArgs e) { // Load current Feed data. _engine = new FeedEngine(); ThreadStart start = new ThreadStart(_engine.Poll); _pollingThread = new Thread(start); _pollingThread.Start(); } } } Hope someone can see where I missed a step. Thanks.

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• H.264 over RTP - Identify SPS and PPS Frames

  - by Toby

  I have a raw H.264 Stream from an IP Camera packed in RTP frames. I want to get raw H.264 data into a file so I can convert it with ffmpeg. So when I want to write the data into my raw H.264 file I found out it has to look like this: 00 00 01 [SPS] 00 00 01 [PPS] 00 00 01 [NALByte] [PAYLOAD RTP Frame 1] // Payload always without the first 2 Bytes -> NAL [PAYLOAD RTP Frame 2] [... until PAYLOAD Frame with Mark Bit received] // From here its a new Video Frame 00 00 01 [NAL BYTE] [PAYLOAD RTP Frame 1] .... So I get the SPS and the PPS from the Session Description Protocol out of my preceding RTSP communication. Additionally the camera sends the SPS and the PPSin two single messages before starting with the video stream itself. So I capture the messages in this order: 1. Preceding RTSP Communication here ( including SDP with SPS and PPS ) 2. RTP Frame with Payload: 67 42 80 28 DA 01 40 16 C4 // This is the SPS 3. RTP Frame with Payload: 68 CE 3C 80 // This is the PPS 4. RTP Frame with Payload: ... // Video Data Then there come some Frames with Payload and at some point a RTP Frame with the Marker Bit = 1. This means ( if I got it right) that I have a complete video frame. Afer this I write the Prefix Sequence ( 00 00 01 ) and the NALfrom the payload again and go on with the same procedure. Now my camera sends me after every 8 complete Video Frames the SPS and the PPS again. ( Again in two RTP Frames, as seen in the example above ). I know that especially the PPS can change in between streaming but that's not the problem. My questions are now: 1. Do I need to write the SPS/PPS every 8th Video Frame? If my SPS and my PPS don't change it should be enough to have them written at the very beginning of my file and nothing more? 2. How to distinguish between SPS/PPS and normal RTP Frames? In my C++ Code which parses the transmitted data I need make a difference between the RTP Frames with normal Payload an the ones carrying the SPS/PPS. How can I distinguish them? Okay the SPS/PPS frames are usually way smaller, but that's not a save call to rely on. Because if I ignore them I need to know which data I can throw away, or if I need to write them I need to put the 00 00 01 Prefix in front of them. ? Or is it a fixed rule that they occur every 8th Video Frame?

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• "error: Unexpected error" during maven build with Android Anotations

  - by zasadnyy

  I have problem with building project with android anotations (v.2.6) using maven, with eclipse all works just fine. Here is some project and error details: build configuration snippet from pom: <plugin> <groupId>com.jayway.maven.plugins.android.generation2</groupId> <artifactId>android-maven-plugin</artifactId> <version>3.3.2</version> <inherited>true</inherited> <configuration> <androidManifestFile>${project.basedir}/AndroidManifest.xml</androidManifestFile> <assetsDirectory>${project.basedir}/assets</assetsDirectory> <resourceDirectory>${project.basedir}/res</resourceDirectory> <nativeLibrariesDirectory>${project.basedir}/src/main/native</nativeLibrariesDirectory> <sdk> <platform>16</platform> </sdk> <undeployBeforeDeploy>true</undeployBeforeDeploy> </configuration> </plugin> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.5</version> <inherited>true</inherited> <configuration> <source>1.6</source> <target>1.6</target> </configuration> <extensions>true</extensions> </plugin> and here is output after executing mvn clean install on parent project: [INFO] --- maven-compiler-plugin:2.5:compile (default-compile) @ native-container framework --- [INFO] Compiling 102 source files to /Users/vitaliyzasadnyy/Development/repository/androidcontainer/native-container- android/native-container-framework/target/classes [INFO] ------------------------------------------------------------- [ERROR] COMPILATION ERROR : [INFO] ------------------------------------------------------------- [ERROR] error: Unexpected error. Please report an issue on AndroidAnnotations, with the following content: java.lang.NullPointerException [ERROR] at com.googlecode.androidannotations.internal.codemodel.JCodeModel.ref(JCodeModel.java:372) at com.googlecode.androidannotations.processing.EBeansHolder.refClass(EBeansHolder.java:160) at com.googlecode.androidannotations.processing.EBeansHolder$Classes.<init>(EBeansHolder.java:50) at com.googlecode.androidannotations.processing.EBeansHolder.<init>(EBeansHolder.java:136) at com.googlecode.androidannotations.processing.ModelProcessor.process(ModelProcessor.java:40) at com.googlecode.androidannotations.AndroidAnnotationProcessor.processAnnotations(AndroidAnnotationProcessor.java:472) at com.googlecode.androidannotations.AndroidAnnotationProcessor.processThrowing(AndroidAnnotationProcessor.java:343) at com.googlecode.androidannotations.AndroidAnnotationProcessor.process(AndroidAnnotationProcessor.java:318) at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:627) at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:556) at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:701) at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:987) at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:727) at com.sun.tools.javac.main.Main.compile(Main.java:353) at com.sun.tools.javac.main.Main.compile(Main.java:279) at com.sun.tools.javac.main.Main.compile(Main.java:270) at com.sun.tools.javac.Main.compile(Main.java:87) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess0(JavacCompiler.java:559) at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompiler.java:534) at org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:168) at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:678) at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196) at org.apache.maven.cli.MavenCli.main(MavenCli.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) /Users/vitaliyzasadnyy/Development/repository/androidcontainer/native-container-android/native-container-framework/src/main/java/com/nravo/framework/activity/MainScreenActivity.java:[44,-1] Unexpected error. Please report an issue on AndroidAnnotations, with the following content: java.lang.NullPointerException at com.googlecode.androidannotations.internal.codemodel.JCodeModel.ref(JCodeModel.java:372) at com.googlecode.androidannotations.processing.EBeansHolder.refClass(EBeansHolder.java:160) Does anybody faced with this problem?

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• Regarding Unix shell script

  - by arav

  I want to retrieve the file from the INFILE directory which are begining with the file names prefix "BBSCGG_" or "BCT_" or "ACL_" or "ASC" and do the processing inside the for loop INFILE=/ext/test/fil1/ for infile name in file prefix ... if [[ -f ${fspec} ]] ; then processing logic else processing logic done how can i do it

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• Indexing only one MySQL column value

  - by BrainCore

  I have a MySQL InnoDB table with a status column. The status can be 'done' or 'processing'. As the table grows, at most .1% of the status values will be 'processing,' whereas the other 99.9% of the values will be 'done.' This seems like a great candidate for an index due to the high selectivity for 'processing' (though not for 'done'). Is it possible to create an index for the status column that only indexes the value 'processing'? I do not want the index to waste an enormous amount of space indexing 'done.'

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• Shell Script Sequencing with Rake

  - by Haseeb Khan

  Hi All, I am working on a rake utility and want to implement something mentioned below: There are some shell commands in a sequence in my Rake file. What I want is that the sequence should wait for the previous command to finish processing before it moves to the next one. sh "git commit -m \"#{args.commit_message}\"" do |ok, res| # Do some processing end sh "git push heroku master" So, in the above example what I want is that sh "git push heroku master" shouldn't be executed until the processing in the sh "git commit -m \"#{args.commit_message}\"" do |ok, res| # Do some processing end is completed. Also another nice to have would be that if I can store the output of the shell command in a Ruby variable so it can be used in further manipulation if required. Looking forward to a reply from the fellow community member shortly. Thanks in advance.

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• How to install a downloaded Ruby gem file ?

  - by JCLL

  How does "gem install" works ? It is not intuitive... My gem is really here : [root@localhost Téléchargement]# ll *.gem -rw-rw-r-- 1 jean jean 16353818 mar 5 11:39 ruby-processing-1.0.9.gem But an idiomatic "gem install" does not see it... [root@localhost Téléchargement]# gem install ruby-processing-1.0.9.gem ERROR: could not find gem ruby-processing-1.0.9.gem locally or in a repository What's wrong with that ? Thx JC

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• dynamically embedding youtube videos with jquery

  - by danwoods

  Hello all, I'm trying to retrieve a listing of a user's youtube videos and embed them in a page using jQuery. My code looks something like this: $(document).ready(function() { //some variables var fl_obj_template = $('<object width="260" height="140">' + '<param name="movie" value=""></param>' + '<param name="allowFullScreen" value="true"></param>' + '<param name="allowscriptaccess" value="always"></param>' + '<embed src="" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="260" height="140"></embed>' + '</object>'); var video_elm_arr = $('.video'); //hide videos until ready $('.video').addClass('hidden'); //pull video data from youtube $.ajax({ url: 'http://gdata.youtube.com/feeds/api/users/username/uploads?alt=json', dataType: 'jsonp', success: function(data) { $.each(data.feed.entry, function(i,item){ //only take the first 7 videos if(i > 6) return; //give the video element a flash object var cur_flash_obj = fl_obj_template; //assign title $(video_elm_arr[i]).find('.video_title').html(item.title.$t); //clean url var video_url = item.media$group.media$content[0].url; var index = video_url.indexOf("?"); if (index > 0) video_url = video_url.substring(0, index); //and asign it to the player's parameters $(cur_flash_obj).find('object param[name="movie"]').attr('value', video_url); $(cur_flash_obj).find('object embed').attr('src', video_url); //alert(cur_flash_obj); //insert flash object in video element $(video_elm_arr[i]).append(cur_flash_obj); //and show $(video_elm_arr[i]).removeClass('hidden'); }); } }); }); (of course with 'username' being the actual username). The video titles appear correctly but no videos show up. What gives? The target html looks like: <div id="top_row_center" class="video_center video"> <p class="video_title"></p> </div>

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• How to install system_timer gem on Windows 7

  - by user280405

  I got problem "Processing environment.rb: Pre Initialisation Phase (using rails 2.3.5)" "Processing environment.rb: Main Initialisation Phase" C:/Ruby/bin/rake: No such file or directory - svnversion [memcache-client] Could not load SystemTimer gem, falling back to Ruby's slower/unsafe timeout library: no such file to load -- system_timer rake aborted! unable to find server during initialization. C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:in `raw_load_rakefile' I dunno how to install this gem, because when i exec gem install system_timer i receiving: "Processing environment.rb: Pre Initialisation Phase (using rails 2.3.5)" "Processing environment.rb: Main Initialisation Phase" C:/Ruby/bin/rake: No such file or directory - svnversion [memcache-client] Could not load SystemTimer gem, falling back to Ruby's slower/unsafe timeout library: no such file to load -- system_timer rake aborted! unable to find server during initialization. C:/Ruby/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2383:in `raw_load_rakefile' Anybody, help please!

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