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  • Cassandra on heterogeneous servers

    - by happy-coding
    I am currently running 4 cassandra nodes with the following hardware in a Apache Cassandra cluster: AMD Athlon 64 X2 6000+ 8G RAM 750G hard disk It shows not such a good writing performance and a really bad read performance with sometimes also timeouts. I was wondering if it makes sense to add 2 nodes with a different hardware (8 CPUs and more RAM) to improve this. Or does a cassandra cluster works best with the same hardware in every node? Thanks & best regards

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  • Save Word document to clipboard

    - by uwe
    I often come into the following situation: Get an email with attachment in MS Outlook Open that attachment in MS Word Starting to edit the document in MS Word Start replying to the email in MS Outlook Getting the edited document into my reply I have to save that file to disk and then drag it as attachment. I would think of a short way to get that document as attachement in the newly generated email. Is there a way to implement a save location as clipboard or just a copy to clipboard (the document, not the content)?

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  • HP Smart Array p400i with Intel X25-M 160 SSD

    - by user67304
    I have a pair of x25-M 160 Intel SSD's in an HP DL360 G5 with a p400i Smart Array running 512 BBWC. The disk performance I am getting on this box and another identical one does not come close to matching the same two drives running through a cheap 3ware RAID card. Any idea? I have played with the cache settings, but nothing allows me to get the same results. It seems like the Smart Array controller is the bottleneck.

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  • Virsh: Different XML with edit than dumpxml. Why?

    - by Dave Vogt
    I'm trying to fetch the VNC access data from a virtual machine managed by libVirt. However, when I run virsh dumpxml $machine, the vnc passwd is missing: <graphics type='vnc' port='-1' autoport='yes'/> Checking the same using virsh edit $machine, I see the password is actually there: <graphics type='vnc' port='-1' autoport='yes' passwd='asdf'/> Why is this? Is this intentional (what reason?), or could this be a bug?

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  • Ubuntu says FAT16, windows says NTF?

    - by myforwik
    I created a partition on USB harddisk in windows and it reports to be an NTFS partition. Yet in ubuntu 9.10 fdisk says it a FAT16 partition. If I mount with -t ntfs I see nothing, but if I mount without it I see all the files. Can anyone tell me whats going on here? Windows computer disk management definately says its NTFS, and a quick look at the raw data suggests it is NTFS, as I know the FAT16 very well.

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  • What to use for Shell Access?

    - by Aristotle
    I just purchased a virtual dedicated server-plan that comes with shell access. It's been a while since I've actually used shell access remotely, so I'm a bit behind the times. Years ago I used PuTTY, but I'm curious if there are any better options that I should consider for establishing that connection, and managing my server remotely. I figured this question would be most appropriately asked here since it is regarding tools.

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  • Question about VMWare thin provisioning

    - by Datapimp23
    I'm playing around with virtual disks and thin provisioning and have a question about it. I've created several disks and allocated space to with thin provisioning. Is it possible to allocate more disk space than the maximum amount of the datastore space. So that for example, my VM's will stop functioning when the disks slowly start filling up?

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  • MySQL: table is marked as crashed

    - by DrStalker
    After a disk full issue one of the MySQL DBs on the server is coming up with the following error when I try to back it up: [root@mybox ~]# mysqldump -p --result-file=/tmp/dbbackup.sql --database myDBname Enter password: mysqldump: Got error: 145: Table './myDBname/myTable1' is marked as crashed and should be repaired when using LOCK TABLES A bit of investigation shows two tables have this issue. What needs to be done to fix up the damaged tables?

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  • Can I customize the Summary Network Report in Windows Server 2008?

    - by Xavier
    Hi Guys, We get a weekly Summary Network Report from our SBS 2008 server, delivered by email. The report contains many alerts. We want to ignore some of them so that the report is all green and any alert will stand out. For example, we want to ignore the alert regarding the firewall being off on the server. Is there a place where I can select what points to check and the level of some alerts (such as low remaining disk space), etc?

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  • Experience in migrating from Apache to nginx?

    - by Julien
    I'd like to get some feedback about a migration From Apache to nginx. My goal is to reduce the memory footprint of the web server. Currently, I use the following modules.features on Apache: multiple virtual hosts Server Side Include Fast CGI Please share your experience: problems during migration, benefits after migration (was it worth it?), useful modules for nginx, etc.

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  • Read NTFS partition on RHEL 5.8

    - by Alex Farber
    I have RHEL 5.8 64 bit, and NTFS partition on the same disk. How can I get access to this partition? This answer Unable to mount NTFS drive with RHEL 6 doesn't work for me: [root@localhost alex]# rpm -Uvh http://download.fedora.redhat.com/pub/epel/6/i386/epel-release-6-5.noarch.rpm Retrieving http://download.fedora.redhat.com/pub/epel/6/i386/epel-release-6-5.noarch.rpm error: skipping http://download.fedora.redhat.com/pub/epel/6/i386/epel-release-6-5.noarch.rpm - transfer failed - Unknown or unexpected error

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  • How to change a physical partition system to LVM?

    - by Daniel Hernández
    I have a server with Debian that have 3 physical partitions covering all the disk: boot, root y swap. Now I want to replace that partitions with LVM partitions. I know how install Debian with LVM at beginning, but in this case I can't install the system at beginning because the provider gets me a server with remote access and the system installed in this way. How can I change that partitions using only an ssh connection and possibly other remote server where to put some temporal data?

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  • Cannot Delete Application Pool

    - by redsquare
    I am trying to tidy up an IIS server. I have removed some test/uat virtual directories however I am not able to remove the application pools. I get the following error message. Any hints on how I go about resolving this?

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  • What happens when a flash drive wears out?

    - by endolith
    Flash memory has a limited number of read/write cycles, after which it fails. What happens when it fails? Is it like a hard drive, where a failed write is silently moved to another part of the disk and that sector marked as bad and never used again, without data loss? Are there a limited number of replacement sectors? Do operating systems warn the user in some way?

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  • Installing VirtualBox on Windows 7-64bit

    - by nos
    Has anyone managed to install Virtualbox on Windows 7 64 bit ? While virtual box installs on win7 32 bit, the installer eventually fails under win7 64-bit - are there any tricks I need to be aware of ? I'm already running the installer as Administrator. The installer stops at this point for about 3-4 minutes And eventually fails with EDIT - added another image.

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  • how much can I ask for this second hand Pentium 4 ?

    - by Patrick
    hi, I hope this question is allowed here. I have a second hand Pentium 4, 60 gigabytes hard disk, 128mb ram. How much money I could ask for it ? Sorry if it is stupid question :) If this question is not appropriate, could you please suggest a forum where can I ask this kind of questions ? thanks

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  • From Vista to dual-boot Windows 7/Ubuntu

    - by Juha Syrjälä
    I currently have a laptop with Windows Vista, and I'd like to upgrade to Windows 7 and also install Ubuntu Linux as dual boot. I need to make disk partitions used by Windows smaller to make room for Linux. What is easiest way to upgrade? Should I resize Vista partition first to make room for linux installation, or should I upgrade first to Windows 7 and resize partitions after upgrade.

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  • HP Smart Array p400i with Intel X25-M 160 SSD

    - by user67304
    I have a pair of x25-M 160 Intel SSD's in an HP DL360 G5 with a p400i Smart Array running 512 BBWC. The disk performance I am getting on this box and another identical one does not come close to matching the same two drives running through a cheap 3ware RAID card. Any idea? I have played with the cache settings, but nothing allows me to get the same results. It seems like the Smart Array controller is the bottleneck.

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  • Streaming audio/video in a publicly-hosted server increases bandwith usage

    - by Eka
    I have a website hosted in a public server (withoud any streaming content) ,using public hosting instead of private because its cheaper. But in public hosting their are limitations when compared to private hosting such as monthly bandwidth usage (1 GB), disk space, cpu usage etc. I am planning to embedd videos and audios (from other websites like youtube) to my already existing website. My question is if a client streams a embedded video/audio (hosted in another website) from my website any change in bandwidth occurs.

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  • startup Error for Zend Server CE

    - by Jamison
    Hello! I've got a strange startup error for Zend Server CE - it's probably easy to fix, but I don't have much experience with Zend Server! I'm running the latest OSX 10.6.6 and the latest Zend Server CE for Mac. When I run the "start" command from the command line, here is what I get: /usr/local/zend/bin/apachectl start [OK] spawn-fcgi: child spawned successfully: PID: 4206 /usr/local/zend/bin/shell_functions.rc: line 133: 4210 Bus error $WATCHDOG -i $BINARY 1>&3 2>&4 /usr/local/zend/bin/shell_functions.rc: line 133: 4211 Bus error $WATCHDOG -u $WD_UID -g $WD_GID -s $BINARY 1>&3 2>&4 Starting Zend Server GUI [Lighttpd] [FAILED] /usr/local/zend/bin/lighttpdctl.sh: line 46: 4212 Bus error $WATCHDOG -i $BINARY Starting MySQL SUCCESS! /usr/local/zend/bin/shell_functions.rc: line 133: 4304 Bus error $WATCHDOG -i $BINARY 1>&3 2>&4 /usr/local/zend/bin/shell_functions.rc: line 133: 4425 Bus error $WATCHDOG -u $WD_UID -g $WD_GID -s $BINARY 1>&3 2>&4 Starting Java bridge [FAILED] /usr/local/zend/bin/java_bridge.sh: line 39: 4426 Bus error $WATCHDOG -i $BINARY Zend Server started... The challenge is that ZEND SERVER wont open the GUI with this error, and seemingly I can click on Zend Server in the Applications folder and it opens for a second and immediately closes. I've made sure that Web Sharing is turned off to avoid conflicts, and I've run Disk Utility from my recovery disk to make sure there are no file system errors. Here is what the lines that are referenced in the errors have in terms of code: shell_functions.rc: (starting on line 132 - the error message says line 133...): launch() { if [ -z "$DEBUG" ]; then exec 3>/dev/null 4>&3 else exec 3>&1 4>&2 fi $WATCHDOG -i $BINARY 1>&3 2>&4 RET=$? if [ $RET -eq 0 ];then $ECHO_CMD "$BINARY watchdog is up and running.. ${OK_COLOR}[OK]${T_RESET}" return $RET else #$WATCHDOG -u $WD_UID -g $WD_GID -s $BINARY >> "$PREFIX/logs/watchdog_$BINARY.log" 2>&1 $WATCHDOG -u $WD_UID -g $WD_GID -s $BINARY 1>&3 2>&4 report $? "Starting" fi } _kill() { $WATCHDOG -i $BINARY > /dev/null 2>&1 if [ $? -eq 1 ];then $ECHO_CMD "$BINARY is not running" else $WATCHDOG -t $BINARY > /dev/null 2>&1 report $? "Stopping" fi } lighttpdctl.sh: (starting on line 45 - the error message says line 46...): status() { $WATCHDOG -i $BINARY } case "$1" in start) start status ;; stop) stop ;; restart) stop sleep 1 start ;; status) status ;; *) usage exit 1 esac exit $? java_bridge.sh: (starting on line 38 - the error message says line 39...): status() { $WATCHDOG -i $BINARY } Question: "Watchdog" is library in this zend BIN folder - it seems to handle error reporting? all the errors in my start command seem to deal with this Watchdog thing, but I don't know what to do about it... Thanks!

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