Search Results

Search found 58653 results on 2347 pages for 'transactional data'.

Page 871/2347 | < Previous Page | 867 868 869 870 871 872 873 874 875 876 877 878  | Next Page >

  • DRBD on a disk with existing file system that takes all the place

    - by Karolis T.
    I'm currently trying to simulate the environment via XEN. I have installed two debian systems with such FS layout: cltest1:/etc# df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda2 6.0G 417M 5.2G 8% / tmpfs 257M 0 257M 0% /lib/init/rw udev 10M 16K 10M 1% /dev tmpfs 257M 4.0K 257M 1% /dev/shm Host cltest2 is identical. Here's my drbd.conf global { minor-count 1; } resource mysql { protocol C; syncer { rate 10M; # 10 Megabytes } on cltest1 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.186:7789; meta-disk internal; } on cltest2 { device /dev/drbd0; disk /dev/xvda2; address 192.168.1.187:7789; meta-disk internal; } } I have not created filesystem on drbd0 Starting DRBD via init.d script errors out with: Starting DRBD resources: [ d(mysql) /dev/drbd0: Failure: (114) Lower device is already claimed. This usually means it is mounted. [mysql] cmd /sbin/drbdsetup /dev/drbd0 disk /dev/xvda2 /dev/xvda2 internal --set-defaults --create-device failed - continuing! Running: drbdadm create-md mysql gives: cltest1:/etc# drbdadm create-md mysql md_offset 6442446848 al_offset 6442414080 bm_offset 6442217472 Found ext3 filesystem which uses 6291456 kB current configuration leaves usable 6291228 kB Device size would be truncated, which would corrupt data and result in 'access beyond end of device' errors. You need to either * use external meta data (recommended) * shrink that filesystem first * zero out the device (destroy the filesystem) Operation refused. Command 'drbdmeta /dev/drbd0 v08 /dev/xvda2 internal create-md' terminated with exit code 40 drbdadm aborting As I understand, all of my problems are because I don't have unallocated disk space on xvda2. What are my options besides shrinking FS and connecting a separate physical disk? Can't the meta-data be stored on a file in the local filesystem?

    Read the article

  • ZFS - Impact of L2ARC cache device failure (Nexenta)

    - by ewwhite
    I have an HP ProLiant DL380 G7 server running as a NexentaStor storage unit. The server has 36GB RAM, 2 LSI 9211-8i SAS controllers (no SAS expanders), 2 SAS system drives, 12 SAS data drives, a hot-spare disk, an Intel X25-M L2ARC cache and a DDRdrive PCI ZIL accelerator. This system serves NFS to multiple VMWare hosts. I also have about 90-100GB of deduplicated data on the array. I've had two incidents where performance tanked suddenly, leaving the VM guests and Nexenta SSH/Web consoles inaccessible and requiring a full reboot of the array to restore functionality. In both cases, it was the Intel X-25M L2ARC SSD that failed or was "offlined". NexentaStor failed to alert me on the cache failure, however the general ZFS FMA alert was visible on the (unresponsive) console screen. The zpool status output showed: pool: vol1 state: ONLINE scan: scrub repaired 0 in 0h57m with 0 errors on Sat May 21 05:57:27 2011 config: NAME STATE READ WRITE CKSUM vol1 ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c8t5000C50031B94409d0 ONLINE 0 0 0 c9t5000C50031BBFE25d0 ONLINE 0 0 0 mirror-1 ONLINE 0 0 0 c10t5000C50031D158FDd0 ONLINE 0 0 0 c11t5000C5002C823045d0 ONLINE 0 0 0 mirror-2 ONLINE 0 0 0 c12t5000C50031D91AD1d0 ONLINE 0 0 0 c2t5000C50031D911B9d0 ONLINE 0 0 0 mirror-3 ONLINE 0 0 0 c13t5000C50031BC293Dd0 ONLINE 0 0 0 c14t5000C50031BD208Dd0 ONLINE 0 0 0 mirror-4 ONLINE 0 0 0 c15t5000C50031BBF6F5d0 ONLINE 0 0 0 c16t5000C50031D8CFADd0 ONLINE 0 0 0 mirror-5 ONLINE 0 0 0 c17t5000C50031BC0E01d0 ONLINE 0 0 0 c18t5000C5002C7CCE41d0 ONLINE 0 0 0 logs c19t0d0 ONLINE 0 0 0 cache c6t5001517959467B45d0 FAULTED 2 542 0 too many errors spares c7t5000C50031CB43D9d0 AVAIL errors: No known data errors This did not trigger any alerts from within Nexenta. I was under the impression that an L2ARC failure would not impact the system. But in this case, it surely was the culprit. I've never seen any recommendations to RAID L2ARC. Removing the bad SSD entirely from the server got me back running, but I'm concerned about the impact of the device failure (and maybe the lack of notification from NexentaStor as well). Edit - What's the current best-choice SSD for L2ARC cache applications these days?

    Read the article

  • external drive enclosure -> software RAID 5?

    - by memilanuk
    Hello all, I have two older PCs on my LAN posing as 'servers'... one running FreeNAS off a USB stick using three 500GB hdds in a ZFS RAID-Z pool serving as storage for the LAN and one running Debian Lenny with an 80GB drive used as a general purpose 'tinker' box that I can ssh into, etc. Problem is that the SMART report for one of those 500GB drives in the FreeNAS box is showing some pre-failure attributes, and the whole array is a little small anyways. Rather than simply replace one 500GB drive with another 500GB drive, and have no backup of the file server, I'd like to upgrade all the drives to 2TB ones - but I have no where to store that much data in the mean while. As such, I started looking at getting a 4-bay external drive enclosure with an eSATA card for the Debian box, with the hopes of creating a RAID5 + LVM setup using those drives and backing the data up to that external drive enclosure. After the backup is done, replace the drives in the FreeNAS box and rebuild the array there and mirror the data back. Then, I'd have both the primary storage (on the FreeNAS box) and a backup (which I don't have currently) using the external drive enclosure on the Debian box. My big question is... most of these external drive boxes seem to claim support for JBOD, RAID 0, 1, 10, 5, etc. - should I presume that is simply fake RAID like many commodity mobos have, and not really usable in Linux? In that case, with all the drives hanging off the one eSATA connection, will Linux (specifically Debian Squeeze, as I plan on upgrading that box here shortly) see all four drives, or just the first one? Will I be able to configure them in a RAID5 array as desired? Thanks, Monte

    Read the article

  • error handling with NSURLConnection sendSynchronousRequest

    - by Nnp
    how can i do better error handling with NSURLConnection sendSynchronousRequest? is there any way i can implement - (void)connection:(NSURLConnection *)aConn didFailWithError:(NSError *)error i have a nsoperation queue which is getting data in background thats why i have sync request. and if i have to implement async request then how can i wait for request to get complete. because that method can't proceed without data.

    Read the article

  • Configuring vsftpd with nginx on Ubuntu 12.04 LTS

    - by arby
    I've attempted to configure a nginx / vsftpd server on Ubuntu 12.04 LTS (via amazon ec2) a couple times now, but I seem to keep making a mistake along the way. Currently, when I try to connect to my ftp server it takes a minute or so before it connects. Then when I issue a command, they all timeout with an operation failed error. Aside from these issues, I'm not completely confident with the file ownership & permissions or the configuration / settings. So, I think it's best if I just re-install and re-configure correctly. I believe the nginx installation comes with a default user of www-data:www-data and web root directory ownership by root:root. Vsftpd, however, needs to have a user created with the same group as the nginx user (www-data), and the same home directory as the nginx server (/usr/share/nginx/www), with g+w chmod permissions granted on that directory. The vsftpd.conf file should disable anonymous logins and enable local logins, file writing, and chroot local users. In my previous config, I had /bin/false set for the ftp user's shell and pam_shells.so disabled. I also had local_umask set to 0027. So, starting with a fresh ec2 instance, I've got: sudo apt-get install vsftpd sudo apt-get install nginx For the firewall I issued the command (not sure if necessary): sudo ufw allow ftp Which commands / config is recommended from here? I only need 1 ftp user that I can use to login with my ftp client to modify the single nginx web domain, which will need php & sql for WordPress.

    Read the article

  • error: no matching function for call to ‘BSTreeNode<int, int>::BSTreeNode(int, int, NULL, NULL)’ - what's wrong?

    - by Alexander Suraphel
    error: no matching function for call to ‘BSTreeNode::BSTreeNode(int, int, NULL, NULL)’ candidates are: BSTreeNode::BSTreeNode(KF, DT&, BSTreeNode*, BSTreeNode*) [with KF = int, DT = int] here is how I used it: BSTreeNode<int, int> newNode(5,9, NULL, NULL) ; I defined it as follows: BSTreeNode(KF sKey, DT &data, BSTreeNode *lt, BSTreeNode *rt):key(sKey),dataItem(data), left(lt), right(rt){} what's wrong with using my constructor this way? i've been pulling out my hair all night please help me ASAP!!

    Read the article

  • Expected output from an RM-1501 RS232 interface?

    - by Jon Cage
    I have an old RM-1501 digital tachometer which I'm using to try to identify the speed of an object. According to the manual I should be able to read the data over a serial link. Unfortunately, I don't appear to be able to get any sensible output from the device (never gives a valid speed). I think it might be a signalling problem because disconnecting the CTS line starts to get some data through.. Has anyone ever developed anything for one of these / had any success?

    Read the article

  • [Silverlight] DataGrid

    - by nCdy
    I'm making tutorials. Silverlight + MSSQL And I'm on the last step when it says "Copy-paste my code and tada it will works"... :-/ But after I added System.Windows.Controls.Data reference it still can't find Error 3 The type or namespace name 'Data' does not exist in the namespace 'System.Windows.Controls' (are you missing an assembly reference?) I really don't miss the reference ... Maybe I need to add it somehow else or ... I really have no idea. (VSWDEE2010)

    Read the article

  • How does QuickBooks handle IIF imports?

    - by dwwilson66
    I've received a 'template' for an IIF file for Quickbooks transactions, and there's like seventy-bazillion fields in there, lots of which I never even user. It's a tab delimited file, with the following lines--field headers for transactions and respective splits for those transactions, followed by an end-of-transaction marker. !TRNS FIELD1 FIELD2 FIELD3 ... FIELD48 !SPL FIELD1 FIELD2 FIELD3 ... FIELD48 !ENDTRNS TRNS FIELD1_DATA FIELD2_DATA FIELD3_DATA ... FIELD48_DATA SPL FIELD1_DATA FIELD2_DATA FIELD3_DATA ... FIELD48_DATA ENDTRNS ... What drives data to a particular field? Is it the field header with corresponding data, or is it the tabular position relative to the head of the line? E.G., Let's say all I have to import is the data in FIELD1, FIELD3 and FIELD5: Would I need by header: !TRNS FIELD1 FIELD3 FIELD5 !SPL FIELD1 FIELD3 FIELD5 !ENDTRNS TRNS FIELD1 FIELD3 FIELD5 SPL FIELD1 FIELD3 FIELD5 ENDTRNS or by tabular position: !TRNS FIELD1 FIELD2 FIELD3 FIELD4 FIELD5 !SPL FIELD1 FIELD2 FIELD3 FIELD4 FIELD5 !ENDTRNS TRNS FIELD1_DATA FIELD2_BLANK FIELD3_DATA FIELD4_BLANK FIELD5_DATA SPL FIELD1_DATA FIELD2_BLANK FIELD3_DATA FIELD4_BLANK FIELD5_DATA ENDTRNS Alternately, if it were a comma delimited input, would I need: DATA1,DATA3,DATA5 or DATA1,,DATA3,,DATA5 Anyone have any experience with what Quickbooks is doing?

    Read the article

  • Django forms "not" using forms from models

    - by zubinmehta
    I have a form generated from various models and the various values filled go and sit in some other table. Hence, in this case I haven't used the inbuilt Django forms(i.e. I am not creating forms from models ). Now the data which is posted from the self made form is handled by view1 which should clean the data accordingly. How do I go about it and use the various functions clean and define validation errors (and preferably not do validation logic in the view itself!)

    Read the article

  • Is redis a durable datastore?

    - by allyourcode
    By "durable" I mean, the server can crash at any time, and as long as the disk remains in tact, no data is lost (see ACID). Seems like that's what journaling mode is for, but if you enable journaling, doesn't that defeat the purpose of operating on in-memory data? Read operations might not be affected by journaling, but it seems like journaling would kill your write performance.

    Read the article

  • Is it possible to do custom grouping in the ASP.NET ListView control?

    - by michielvoo
    You can only define a GroupItemCount in the ListView, but what if you want to do grouping based on a property of the items in the data source? Sort of an ad-hoc group by. The data source is sorted on this property. I have seen some examples where some markup in the ItemTemplate was conditionally show, but I want to leverage the GroupTemplate if possible. Is this possible?

    Read the article

  • dojo/dijit ContentPane setting content

    - by Kitson
    I am trying append some XML retrieved via a dojo.XHRGet to a dijit.layout.ContentPane. Everything works ok in Firefox (3.6) but in Chrome, I only get back 'undefined' in the particular ContentPane. My code looks something like this: var cp = dijit.byId("mapDetailsPane"); cp.destroyDescendants(); // there are some existing Widgets/content I want to clear // and replace with the new content var xhrData = { url : "getsomexml.php", handleAs: "xml", preventCache: true, failOk: true }; var deferred = new dojo.xhrGet(xhrData); deferred.addCallback(function(data) { console.log(data.firstChild); // get a DOM object in both Firebug // and Chrome Dev Tools cp.attr("content",data.firstChild); // get the XML appended to the doc in Firefox, // but "undefined" in Chrome }); Because in both browsers I get back a valid Document object I know XHRGet is working fine, but there seems to be some sort of difference in how the content is being set. Is there a better way to handle the return data from the request? There was a request to see my XML, so here is part of it... <?xml version="1.0" encoding="UTF-8" standalone="no"?> <svg xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="672" height="1674"> <defs> <style type="text/css"> <![CDATA[ ...bunch of CSS... ]]> </style> <marker refX="0" refY="0" orient="auto" id="A00End" style="overflow: visible;"> ...bunch more defs... </defs> <g id="endpoints"> ...bunch of SVG with a some... <a xlink:href="javascript:gotoLogLine(16423,55);" xlink:type="simple">...more svg...</a> </g> </svg> I have run the output XML trough the WC3 validator for XML to verify it is valid. Like I said before, works in FireFox 3.6. I tried it on Safari and I got the same "undefined" so it seems to be related to Webkit.

    Read the article

  • oci_connect Blank Page in PHP

    - by Bryan
    UPDATE (3/8/2010) I installed Xdebug and have it tracing my code. This is the output I am getting: TRACE START [2010-03-08 17:53:05] 0.2090 327864 -> {main}() /data/aims3/http/octest.php:0 0.2091 327988 -> ini_set(string(14), string(1)) /data/aims3/http/octest.php:3 0.2093 327920 -> error_reporting(long) /data/aims3/http/octest.php:4 0.2094 328048 -> oci_connect(string(8), string(8), string(25)) /data/aims3/http/octest.php:6 The trace halts at that point. I have installed everything the same way on a local server and it works fine. To say I am at a complete loss would be putting it lightly. *NOTE: I ran make test and it returned FAIL on every test. I never ran this on my working machine to see if it reports the same errors. Any idea why make test would report FAIL but make doesn't report any error? I've installed the Oracle Instantclient with no reported errors along with the OCI8 PECL package and at a loss. Whenever I try to open a connection with oci_connect, it halts my entire PHP script. EXAMPLE: <?php ini_set ("display_errors", "1"); error_reporting(E_ALL); echo "before"; $conn = oci_connect("username", "password", "host"); echo "after"; ?> Returns a complete blank page. The module is loaded (seen in phpinfo) and everything installed with no errors. I am at a complete loss. CentOS: 5.4 Apache: 2.2.3 PHP: 5.3.1 InstantClient: 11.2 oci8: 1.4.1 Any thoughts? NOTES Apache Error Log reports nothing Attempted Debugging: 1: <?php ini_set ("display_errors", "1"); error_reporting(E_ALL); echo "before"; if(!function_exists('oci_connect')) die('Oracle Not Installed'); echo "after"; ?> Returns: beforeafter 2: Changing host to //host Returns: Same error

    Read the article

  • Business Intelligence Development Studio encounter error on Rendering

    - by user366796
    I try to develop a data processing extension for SSRS 2008 in order to access database through an entity framework. But when I copy and register the extension in BI Development Studio, it gives me an error message while loading the extension". I built it with targeting framework 4.0 by using Visual Studio 2010 because my data model class library was built with that version of target framework. Any help will be greatly appreciated. Thanks.

    Read the article

  • implement INotifyCollectionChanged etc on xml file changed

    - by netmajor
    It's possible to implement INotifyCollectionChanged or other interface like IObservable to enable to bind filtered data from xml file on this file changed ? I see examples with properties or collection, but what with files changes ? I have that code to filter and bind xml data to list box: XmlDocument channelsDoc = new XmlDocument(); channelsDoc.Load("RssChannels.xml"); XmlNodeList channelsList = channelsDoc.GetElementsByTagName("channel"); this.RssChannelsListBox.DataContext = channelsList;

    Read the article

  • New Computer freezing up at random

    - by Benjamin Frost
    Since I built my system about 4 weeks ago I'v been getting random freezes, Sometimes it can happen directly after startup and sometimes it wont freeze up for 3-4 days of 24/7 running. It seems to be happening under all stress loads but mainly when the CPU is under 10% load. It doesn't give me a BSOD or anything, it simply just freezes and repeats the last sound before the freeze until I shut it down by the power button. I'v re-seated everything in the system except the CPU, Cleaned the RAM sockets and gold fittings. None of the components have been clocked above their factory settings as of yet, don't want to overclock them until I sort out these freezes. Temps are all well under the rated max temps, the highest the temps have been are below CPU: Low load: 16-21°C Full Load (100%) 40-43°C *(From HWMonitor by CPUID) GPU 1: Low Load: 25-30°C Full Load (100%): 45-50°C GPU 2: Low Load: 23-27°C Full Load (100%): 45-50°C *(GPU Temps from Catalyst Control Center) General Case temps Rear: 18-20°C Mid: 20-21°C Front (HDD/SSD Bays): 14-19°C (Case temps may be a little off as it's from the Kaze master pro fan controller) I have Un-installed EVERY driver for Motherboard, GPU & Soundcard and Re-installed twice. Windows is all up to date. To date i'v tried the following Running Memtest for 24 hrs straight, No errors Running Memtest on each individual RAM modules, No errors Reseated everything except the CPU Cleaned DIMM Sockets and Gold inputs Tested the Graphics cards 1 at a time Re-arranged all the SATA devices to run on Chipset controlled ports Re-installing all drivers OS: Win7 Professional 64bit Motherboard: ASRock X79 Extreme9 CPU: i7 3930k 3.2GHz GPU: Sapphire 7950 OC Edition V2 (2 card Crossfire) RAM: G.Skill Ripjaws Z F3-17000CL11Q-16GBZL 16GB (4x4GB) DDR3 Boot Drive: OCZ Agility 4 128GB Data Drive 1: Western Digital Black 2TB Data Drive 2: Western Digital Black 2TB Data Drive 3: Western Digital Green 3TB Power Supply: Corsair AX1200 Gold

    Read the article

  • Queryable and BindingSource item add .net

    - by Alexander
    Hello! I wrote my own simple Queryable provider which retrieves data from a database. Now I need to bind this data to a BindingSource and when the new item is added to BindingSource some event or method must be called for handling the add operation. I have tried to implement IBingingList on a List class which is returned when the query is completed, but the AddNew method is not called when the item is added? How can I implement this scenario?

    Read the article

  • use Services in MVVM

    - by netmajor
    I want to use Services(WCF/RIA /Web) to take data from Entity Data Model class (maybe NHibernate class) and prepared it special for View layer binding. I have few Silverlight page, so should I create for each page separate service class ? Or create one interface and all method will implement it in one service class? Do You have some advice helped with my with services ?

    Read the article

  • open default browser with a post in Delphi

    - by Brad
    I know in delphi you can open the default browser with: ShellExecute(self.WindowHandle,'open','www.website.com',nil,nil, SW_SHOWNORMAL); but I'm wanting to know if there is a way to automatically post data on the new opened brower window OR auto fill the login data (even in firefox, safari,etc) Thanks -Brad

    Read the article

  • Need help tuning Mysql and linux server

    - by Newtonx
    We have multi-user application (like MailChimp,Constant Contact) . Each of our customers has it's own contact's list (from 5 to 100.000 contacts). Everything is stored in one BIG database (currently 25G). Since we released our product we have the following data history. 5 years of data history : - users/customers (200+) - contacts (40 million records) - campaigns - campaign_deliveries (73.843.764 records) - campaign_queue ( 8 millions currently ) As we get more users and table records increase our system/web app is getting slower and slower . Some queries takes too long to execute . SCHEMA Table contacts --------------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------------+------------------+------+-----+---------+----------------+ | contact_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | client_id | int(10) unsigned | YES | | NULL | | | name | varchar(60) | YES | | NULL | | | mail | varchar(60) | YES | MUL | NULL | | | verified | int(1) | YES | | 0 | | | owner | int(10) unsigned | NO | MUL | 0 | | | date_created | date | YES | MUL | NULL | | | geolocation | varchar(100) | YES | | NULL | | | ip | varchar(20) | YES | MUL | NULL | | +---------------------+------------------+------+-----+---------+----------------+ Table campaign_deliveries +---------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+------------------+------+-----+---------+----------------+ | id | int(11) | NO | PRI | NULL | auto_increment | | newsletter_id | int(10) unsigned | NO | MUL | 0 | | | contact_id | int(10) unsigned | NO | MUL | 0 | | | sent_date | date | YES | MUL | NULL | | | sent_time | time | YES | MUL | NULL | | | smtp_server | varchar(20) | YES | | NULL | | | owner | int(5) | YES | MUL | NULL | | | ip | varchar(20) | YES | MUL | NULL | | +---------------+------------------+------+-----+---------+----------------+ Table campaign_queue +---------------+------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +---------------+------------------+------+-----+---------+----------------+ | queue_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | newsletter_id | int(10) unsigned | NO | MUL | 0 | | | owner | int(10) unsigned | NO | MUL | 0 | | | date_to_send | date | YES | | NULL | | | contact_id | int(11) | NO | MUL | NULL | | | date_created | date | YES | | NULL | | +---------------+------------------+------+-----+---------+----------------+ Slow queries LOG -------------------------------------------- Query_time: 350 Lock_time: 1 Rows_sent: 1 Rows_examined: 971004 SELECT COUNT(*) as total FROM contacts WHERE (contacts.owner = 70 AND contacts.verified = 1); Query_time: 235 Lock_time: 1 Rows_sent: 1 Rows_examined: 4455209 SELECT COUNT(*) as total FROM contacts WHERE (contacts.owner = 2); How can we optimize it ? Queries should take no more than 30 secs to execute? Can we optimize it and keep all data in one BIG database or should we change app's structure and set one single database to each user ? Thanks

    Read the article

  • How can I get a call stack listing in Perl?

    - by slashmais
    Is there a way I can access (for printout) a list of sub + module to arbitrary depth of sub-calls preceding a current position in a Perl script? I need to make changes to some Perl modules (.pm's). The workflow is initiated from a web-page thru a cgi-script, passing input through several modules/objects ending in the module where I need to use the data. Somewhere along the line the data got changed and I need to find out where.

    Read the article

  • Validating a class using DataAnotations

    - by runxc1 Bret Ferrier
    I have a class that I am using to model my data in MVC. I have added some DataAnotations to mark fields that are required and I am using regular expressions to check valid Email Addresses. Everything works fine if the object is posted back to MVC and I have the ModelState property that I can check to confirm that the class is valid but how do I check to see if the class is valid outside of MVC using the same class and Data Anotations that I have already set up?

    Read the article

< Previous Page | 867 868 869 870 871 872 873 874 875 876 877 878  | Next Page >