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• sql server 2008 cluster hang when a heavy load is run

  - by Billy OT

  we have a sql server 2008 active/active cluster running on wondows 2008R2 O/S. 14GB RAM, 4xCPU. we have set a ceiling of 12GB for sql server. We're running an agent job which loads 3 million records to a database. during this load the job fails and the cluster seems to attempt to fail over to the other node but unsuccessfully i.e., the cluster address is no longer accessible. we have to manually fail the cluster node back. during the load on viewing task manager we can see that memory usage hits a max of 12.5GB and CPU at times hits 100% on all 4 CPU, but for the most part fluctuates at an average of about 60%. I suppose my question is, will a cluster try to fail over if memory or CPU are taking a heavy hit? or am i barking up the wrong tree? also any ideas why it wouldn't fully fail over? we've crawled through logs, of which there are a lot, and can't find anything useful. we've also tried recreating the issue but it ran successfully at a later time. Also 3 million rows doesn't seem like a lot but in terms of resources should 14GB RAM and 4xCPU not be sufficient? Further information on this, we ran the load again today and corrupted the database! We received the error message : LogWriter: Operating system error 170. It looks like, under the heavy load, the sql cluster attempted to fail over and in doing so migrated a lun (or drive) which meant the disk was no longer reachable. (this is just our theory). The database is now 'suspect' and requiring restoration. The 170 error above also indicates that on failing over to the other node, the sql service could not start as it was already in use, therefore it couldn't fail over fully?? But I'm wondering why would it need to fail over in the first place? My assumptions could be completely wrong on this, so any ideas would be appreciated.

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• How do I give a user permisson to view scheduled task history on Server 2008?

  - by pplrppl

  I've set up a scheduled task on Server 2008 and want to run it as a user other than the local administrator. So I choose a domain account created specifically for this task and once I've closed the scheduled task and entered a valid password I want to run it and look a the history tab for this task. On the history tab I see: The user account does not have permission to view task history on this computer. What permission must I grant to allow this user to view history and/or how can I view the history as a local admin/domain admin instead of the user the job will run under? Steps to hopefully reproduce: I'm starting from the "Server Manager" - Configuration - Task Scheduler - Task Scheduler Library. IN the top middle pane I have tasks that have been running for several months as the local administrator. In the process of troubleshooting another issue I changed the task to run as Domain\ABCuser. Later in the process of troubleshooting I tried unchecking "run with highest privileges". I have since changed the job back to SERVERNAME\Administrator but the history tab still showed the permissions message. I may have had multiple Server Manager windows open. After Closing the Server Manager and being sure no other management consoles were open I was able to reopen the Server Manager and see the History tab without error. At this point the task works properly but should I ever need to run a task as a task specific account I'd like to know how to make the history viewable. It may be something as simple as closing all Server Manger windows to allow cached permissions to be refreshed the next time you open the Manager but at this point I don't know exactly what the solution is.

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• Solaris SMF to Upstart on RHEL6

  - by aaa90210

  I am planning a migration from Solaris/x86 to RHEL6. Part of this migration will be migrating services from SMF to the RHEL6 equivalent, which appears to be upstart. While init.d scripts still seem to be supported, I want to take advantage of a more sophisticated init daemon, especially for features like job supervision (restarting etc). I would like to gather some thoughts on a few points: 1) Is upstart an adequate job supervisor, i.e. does it preclude the need for stand-alone managers like daemontools/supervise? 2) Upstart scripts seem very bare-bones compared to a typical init.d script. If I was porting an init.d script to Upstart, is it OK to just "exec /etc/init.d/myjob start"? This include RHEL installed programs like httpd. 3) Does upstart do anything is regards to pid files, and what are it's expectations in regards to the forking model of the process? 4) Are there any straightforward guides to the process management aspect of Upstart...and by that I mean the conditions around controlling restarting? e.g. how many times to restart the process before it goes into a maintenance state, or to ignore errors/core dumps in child processes of the supervised process. Any other relevant ideas or guides would be appreciated. TIA

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• NetApp NDMP backup with BE 2010 R2 works, restore fails

  - by uuwe

  Hi, I'm having some issues with a new Backup Exec 2010 R2 installation. I configured a NetApp FAS2020 as an NDMP device and want to backup files from the NAS to a tape drive connected to my backup server. I set up ndmpd according to this document (http://www.symantec.com/business/support/index?page=content&id=TECH48957) and created a separate backup user (http://filers.blogspot.com/2006/09/setting-veritas-netbackup-with-non.html). Backup works perfectly, but restoring any file gives me an authentication failed error. The NDMP device has a "global" ndmp user configured in the device tab (tried this with the newly created ndmpd backup user and the netapp root) and I can also configure separate resource credentials in the BE restore job. I have tried setting the same accounts for the "global" ndmp device and the restore credentials and have also tried setting different accounts for them. NDMP debug level is at 5 and this is what shows up in /etc/messages. The session is closed immediately after it has been granted. 16:12:07 PST [Java_Thread:info]: ndmpdserver: ndmpd.access allowed for version = 4, sessionId = 51, from src ip = 192.168.11.17, dst ip = FAS2020-1/192.168.11.75, src port = 50857, dst port = 10000 16:12:07 PST [Java_Thread:info]: Ndmpd51: ndmpd session closed successfully for version = 4, sessionId = 51, from src ip = 192.168.11.17, dst ip = FAS2020-1/192.168.11.75, src port = 50857, dst port = 10000 Running wireshark on the backup server doesn't produce much. It shows a SYN - SYN/ACK - NDMP CONNECT_CLOSE Request from the backup server. The Resource Credentials for the restore job behave very oddly. If I enter NDMP credentials and do "Test All" it fails. If I use my regular domain backup account, it is successful. There are no failed or succeeded logons in the NetApp ndmp log and tracing this check shows that it doesn't even connect to the NAS. This makes me think that this is more likely flaky BE behaviour rather than misconfiguration of the NAS. Here is the options ndmp output: FAS2020-1 options ndmp ndmpd.access all ndmpd.authtype challenge ndmpd.connectlog.enabled on ndmpd.enable on ndmpd.ignore_ctime.enabled off ndmpd.offset_map.enable on ndmpd.password_length 16 ndmpd.preferred_interface disable ndmpd.tcpnodelay.enable off

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• Should one have a separate user account for work use? [closed]

  - by Tyler Wayne

  This question examines the practice of using a separate OS-level user account to divide work use from personal use (specifically, in a creative profession and on a personal computer). I recently left my in-the-flesh job to go to school, but I'm carrying on with the work remotely. I do all of my work on my laptop, and I currently have a separate user account called "Work" where I do exactly that. However, I'm now starting to question that practice. Because my hobby is the same as my job, I want to save notes of the things I learn while working. Because ideas come at any moment, I often want to throw something into my personal task manager's inbox and look at it again later. That task manager is well-suited to handle both the work and personal aspects of my life. Only my personal account has admin rights, but work sometimes requires me to install programs. My employer has no preference regarding my choice, so that is a non-issue. My work is essentially freelance web development, so advice given with that in mind will be much appreciated. Back up all opinion with some personal experience, please. Ideally, give a list of pros and cons and then name reasons for your position.

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• Win8/7/XP print spooler not getting along with Zebra ZT230 via WIFI

  - by Jonathan M

  I have a graphics-intensive 4"x6" label I'm printing to the ZT230. I'm printing multiple (10) copies. When connected via USB, all goes well. However, when connected via wifi, I only get 2 of the labels. A wireshark capture shows that at some point in the process my computer (presumably my windows spooler) is sending a reset packet, which, I believe, would pretty much kill the print job. I'm getting the same results on Win8, Win7 and WinXP. The print job was originally generated on Zebra's ZebraDesigner2 software. For easier diagnosis, I captured it to a .prn file. The .prn file can be found here: https://drive.google.com/file/d/0BwxF_9SAkKzLLTF5bUJVT0lESUU/edit?usp=sharing And the wireshark capture file can be found here: https://drive.google.com/file/d/0BwxF_9SAkKzLTGpSS0ktZW1xV28/edit?usp=sharing And the printer configuration listing: https://docs.google.com/document/d/1zh1Tw4D4yNa2uljOIL1kO2z8se9HK859irpUEwyxlyY/edit?usp=sharing I've started a discussion with Zebra Tech Support, and they're working on it, but I thought I'd toss it out here for more ideas since we're getting kind of stumped. Any ideas why this may be happening?

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• ssh connection operation timed out using rsync

  - by Mark Molina

  I use rsync to backup my remote server on my local device but when I combine it with a cron job my ssh times out. Just to be clear, the data is stored on a remote server and I want it stored on my local server. The backup request must be sent from my local server to the remote server. The command for backup up the data is working when I just type it in terminal like this: rsync -chavzP --stats USERNAME@IPADDRES: PATH_TO_BACKUP LOCAL_PATH_TO_BACKUP but when I combine it with a cron job like this: 10 11 * * * rsync -chavzP --stats USERNAME@IP_ADDRESS: PATH_TO_BACKUP LOCAL_PATH_TO_BACKUP the ssh connection times out. When the cronjob executes it send a mail to the root user with the output like this: From local.xx.xx.xx Tue Jul 2 11:20:17 2013 X-Original-To: username Delivered-To: [email protected] From: [email protected] (Cron Daemon) To: [email protected] Subject: Cron <username@server> rsync -chavzP --stats USERNAME@IPADDRES: PATH_TO_BACKUP LOCAL_PATH_TO_BACKUP X-Cron-Env: <SHELL=/bin/sh> X-Cron-Env: <PATH=/usr/bin:/bin> X-Cron-Env: <LOGNAME=username> X-Cron-Env: <USER=username> X-Cron-Env: <HOME=/Users/username> Date: Tue, 2 Jul 2013 11:20:17 +0200 (CEST) ssh: connect to host IP_ADDRESS port XX: Operation timed out rsync: connection unexpectedly closed (0 bytes received so far) [receiver] rsync error: unexplained error (code 255) at /SourceCache/rsync/rsync-42/rsync/io.c(452) [receiver=2.6.9] So the rsync command is working when just typed in terminal but not when used by a cronjob. Can anybody explain this?

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• How to manage processes-to-CPU cores affinities ?

  - by Philippe

  I use a distributed user-space filesystem (GlusterFS) and I would like to be sure GlusterFS processes will always have the computing power they need. Each execution node of my grid have 2 CPU, with 4 cores per CPU and 2 threads per core (16 "processors" are seen by Linux). My goal is to guarantee that GlusterFS processes have enough processing power to be reliable, responsive and fast. (There is no marketing here, just the dreams of a sysadmin ;-) I consider two main points : GlusterFS processes I/O for data access (on local disks, or remote disks) I thought about binding the Linux Kernel and GlusterFS instances on a specific "processor". I would like to be sure that : No grid job will impact the kernel and the GlusterFS instances Researchers jobs won't be affected by system processes (I'd like to reserve a pool of cores to job execution and be sure that no system process will use these CPUs) But what about I/O ? As we handle a huge amount of data (several terabytes), we'll have a lot of interuptions. How can I distribute these operations on my processors ? What are the "best practices" ? Thanks for your comments!

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• How to encourage Windows administrators to pick up scripting?

  - by icelava

  When I worked as an administrator in my first job, I was frustrated that our administration processes with Windows servers were a series of point-and-clicks; we could never match the level of efficiency with the Unix servers which had a group of shell scripts to automate a lot of the work. I soon read about WSH and ADSI and wasted no time learning just how much automation I was able to achieve with scripting. There was a huge problem though - almost none of my Windows colleagues were really interested in learning scripting. They seemed happy with the manually mouse-clicking chores and were never excited at the prospect of using scripts to do the work on their behalf. I struggled to convince them to pick up scripting skills despite the evident increases in efficiency. I left that job in pursuit of a full-time software development career thereafter. Almost a decade on working in various environments and different customers, I still encounter Windows administrators mainly possessing this general "mood" where they would avoid scripting as much as possible. Despite the increasing level of accessibility Windows server technologies are opening up for scripting and automation. I am almost certain the majority of administrators are administrators precisely because they absolutely hate performing any kind of programming duties. What are some means to encourage and motivate administrators that scripting can really help them in the long run?

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• BackupExec 2012 File System Archiving - Access is denied to Remote Agent

  - by AllisZero

  Gentlemen, I've been struggling with a Trial version of Symantec Backup Exec 2012 for about a week now. It was installed as an upgrade to our 12.5 license, and the setup completed with no issues. The reason I upgraded is solely for the File System Archiving option as I'm working to reduce the amount of live data in my servers. Backups work A-Ok and I have followed the instructions in the Admin Manual to make sure I had filled all requirements. The account BE is running under is a member of the Local administrators group as required and has been added to the test share that I'm using to evaluate the archiving function. Testing the credentials in the job setup window always works fine, and I am able to add both regular and Admin$ shares to my Archive selection. However, every time I run the Archive job, I get the following message: https://dl.dropbox.com/u/59540229/BEXec.png I've already tried to troubleshoot DNS resolution issues as suggested in the Symantec KB to no avail. The only thing I can think of, at this point, is that a trial license doesn't allow me to use the Archiving function, although that would seem silly on their part. Appreciate any assistance or information. Thanks.

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• NTBackup (on WS2k3) fails to backup remote server (WS2k8R2) with " Error: is not a valid drive, or you do not have access."

  - by Mark A

  We run an NTBackup job on a Windows Server 2003 R2 SP2 with all updates (as of Q4-2011). It works well backing up two WS2k3 servers as well as the backup server itself. However, we have been unable to successfully back up our Windows Server 2008 R2 machine ("G5-01"). It often runs for about 2GB worth of backup and then dies out with one of the below error messages. It should be more like 20GB for the full server. We have tried using the admin share (C$), an explicitly shared drive share, UNC and mapped drives. The result is the same each time, the only thing that varies is the amount of stuff backed up before it chokes. We've also run NTBbackup from the UI interface, from the command line and as a scheduled task. We are backing up to 400/800GB tapes and they have plenty of space available on them (blank media). Error: \\G5-01\c is not a valid drive, or you do not have access. Error: \\G5-01\c$ is not a valid drive, or you do not have access. Error: Y: is not a valid drive, or you do not have access. Error: Could not access or create backup catalog files. Verify that you have full access to the working folder and there is disk space available. The job is run as Administrator and we have no problems logging onto the server and transferring files. The Event Log on the WS2k8 is not much help, as it has success audits for each login. All of the hardware involved (HP DL360 G3, HP LTO Ultrium 3, Adaptec 39320A) has the latest supported drivers. We've seemingly tried a bunch of different options but are wondering where to look next to resolve the backup issue. We've been super happy with our reliable schedule task for years but this one is stumping us!

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• How to encourage Windows administrators to pick up scripting

  - by icelava

  When i worked as an administrator in my first job, I was frustrated our administration processes with Windows servers were a series of point-and-clicks; we could never match the level of efficiency with the Unix servers which had a group of shell scripts to automate a lot of the work. I soon read about WSH and ADSI and wasted no time learning just how much automation I was able to achieve with scripting. There was a huge problem though - almost none of my Windows colleagues were really interested in learning scripting. They seemed happy with the manually mouse-clicking chores and were never excited at the prospect of using scripts to do the work on their behalf. I struggled to convince them to pick up scripting skills despite the evident increases in efficiency. I left that job in pursuit of a full-time software development career thereafter. Almost a decade on working in various environments and different customers, I still encounter Windows administrators mainly possessing this general "mood" where they would avoid scripting as much as possible. Despite the increasing level of accessibility Windows server technologies are opening up for scripting and automation. I am almost certain the majority of administrators are administrators precisely because they absolutely hate performing any kind of programming duties. What are some means to encourage and motivate administrators that scripting can really help them in the long run?

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• Should I keep my ex-employer's data?

  - by Jurily

  Following my brief reign as System Monkey, I am now faced with a dilemma: I did successfully create a backup and a test VM, both on my laptop, as no computer at work had enough free disk space. I didn't delete the backup yet, as it's still the only one of its kind in the company's history. The original is running on a hard drive in continuous use since 2006. There is now only one person left at the company, who knows what a backup is, and they're unlikely to hire someone else, for reasons very closely related to my departure. Last time I tried to talk to them about the importance of backups, they thought I was threatening them. Should I keep it? Pros: I get to save people from their own stupidity (the unofficial sysadmin motto, as far as I know) I get to say "I told you so" when they come begging for help, and feel good about it I get to say nice things about myself on my next job interview Nice clean conscience Bonus rep with the appropriate deities Cons: Legal problems: even if I do help them out with it, they might just sue me for keeping it anyway, although given the circumstances I think I have a good case Legal problems: given the nature of the job and their security, if something leaks, I'm a likely target for retaliation Legal problems: whatever else I didn't think about I need more space for porn. Legal problems. What would you do?

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• 2 Printers 1 Queue

  - by Shazburg

  My issue: When an order is processed, the same document needs to be printed on two printers. My proposed solution: Create a single queue in CUPS with a backend script that spits the job out to the two real printers queues. My problem: Documentation. Maybe I'm looking at every ring around the bullseye, but I can't find anything that lays out the rules for writing a CUPS backend script. In the end, I have several questions: Is there already an option to do this in CUPS that I've missed? The line I use to add my queue is "lpadmin -p MultiPass -E -v multipass -P Generic PostScript Printer". But DeviceURI is bad unless I specify a directory like "-v multipass:/tmp". Why is this? For testing, my script does nothing but capture ARGV and write it out to a text file one line per argument. Problem is, I'm getting nothing. Logs show the job as successful, but I'm pretty sure my meager attempt at a backend isn't even being run. I've tried to keep this question brief, so please ask for more info as I'm sure I've left out the most important part in all this. Honestly, I'm just done chasing my own tail. Thank you for your time.

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• Old scheduled task still being started, but can't find it.

  - by JvO

  System: Windows XP Home Summary: Some scheduled task is still being started by Windows, but I can't find it, nor determine where its configuration has been stored. This is turning into a mystery for me... I set up a Windows XP Home machine to run a task at 7:00 AM, using the Task manager. This was a clean install, no users defined, so you got straight to the desktop after starting the machine. The filesystem uses NTFS. Later on, I needed to introduce users, so I created one (named Sam) with administrator privileges. After this I noticed that the scheduled task failed, most likely due to privilege errors (i.e. can't write to a network drive). So I want to delete the old task, and add it again with the correct user credentials. However.... I can't find the old task!! I know it is still being executed at 7:00 AM, but there's no mention anywhere on the system of this task. I've looked in c:\windows\tasks for .job files, but there's only the "MP Scheduled Scan.job" from Security Essentials. I've searched the whole disk for mention of the batch file that is being run, but can't find it. So why is this old task still running, and more importantly, why can't I find it? Would it have something to do with introducing users on XP?

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• Generic/Text Printer on Windows 7 not prompting for file name

  - by Trevor Tippins

  Hope someone can shed some light on this. I am downloading reports from an AIX-based system by directing them to a TT printer which the terminal emulator (MultiView 2000) intercepts and directs to the default printer on the local system. This local printer is configured as a vanilla Generic/Text printer attached to a FILE port. When I print from AIX, the output is spooled down and the local printer prompts for a file name into which to save the file...but not under Windows 7. This has worked fine for many years, on both Win2K and WinXP. However, on Windows 7 the output gets spooled as a file into spool\PRINTERS (and looks as expected) but the print job then hangs with a status of "Error - Printing" and never prompts for a file name. I have to cancel the job. The Generic/Text printer works as expected with other applications. I have tried setting the printer to print directly rather than spooling but this only serves to hang the terminal session too. I've also tried to run the emulator in Windows 2000 Compatibility Mode and as Administrator in case it was something like that but with no luck. As you might expect, it does work fine in XP Mode (as long as I print to a printer defined therein and not the host's printer) but operationally this isn't going to be an option. Obviously this emulation software is a decade old (at least) and I could just cross/upgrade all the users (at a cost) but, before I do so, has anyone seen this sort of behaviour before and found some sort of fix? Remote OS: AIX 5 Client OS: Windows 7 Pro (32-bit) Printer: Generic/Text on a FILE port TE Software: MultiView 2000 (32-bit) Thanks in advance.

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• Cronjob not Running

  - by Pete Herbert Penito

  I have a bash script that looks like this: #!/bin/sh PID=`ps faux | grep libt | awk 'NR==2{print $2}'` STATUS=`ps faux | grep libt | awk 'NR==2{print $1}'` if [ "$STATUS" = "ec2-user" ]; then echo "libt already killed" else sudo kill $PID echo "libt was killed" fi sleep 5 cd /home/ec2-user/libt sudo ./libt I have saved this file as restart.sh and when I run it like ./restart.sh, it does what its supposed to (kills the libt process and restarts it). However, now I am trying to automate the process by using cron. So I made a cron job that I want to run every 6 hours that looks like this 0 */6 * * * /home/ec2-user/restart.sh When I run "crontab -l" I can see this print so I know it's been added properly. I should mention that the service does not have the ability to be restarted, (like "service ... restart") the process ID needs to be found, killed and then the start script needs to be ran. I have found that this cronjob is not working, I'll log onto the box and I can tell by looking at the logs that no restart has occurred. What am I doing wrong? What can I do to troubleshoot? Any advice would help, this is my first cron job :) Thanks!

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• MySQL ADO.NET Connector & MSSQL Integration Services

  - by user1114330

  Here I am, day three... attempting to sync a data view on a Windows Vista box (64 bit) running MSSQL 2012 and Visual Studio 2010. Sanity is slipping and hunger for progress fills my attention. I went through hell trying to get the MySQL ODBC drivers to get the job but to no avail...everyone seems to be lost and all the threads I can find are solutions that do not work for me. The problem: System DSN's not being seen by SSIS. SSIS DSN Not Showing as ODBC Data Source I make the decision to try out the ADO.NET connector...and to my surprise it is actually in the selection list in data sources in SSIS. So I take off running to create a Data Flow Task, create an ADO.NET Source (a local MSSQL DB)...all is good as usual. Then I move swiftly to creating a ADO.NET Destination, enter my credentials...wow, I am selecting a database finally on my linux server! Happy thinking that I finally have figured a way to get the job done. Then I move to mappings...nope, something is wrong...I am getting an error that hurts my eyes: Pipeline component has returned HRESULT error code 0xC0208457 from a a method call. Error at Data Flow Task [ADO NET Destination [81]]: Failed to get properties of external columns. The table name you entered may not exist or you do not have SELECT permission on the table object and an alternative attempt to get column properties through connection has failed. Detailed error messages are" You have an error in your SQL syntax check the manual that corresponds to your MySQL server version for the right syntax to use near "database".tablename" at line 1. The descriptor files on path C:\Program Files (x86)\Microsoft SQL Server\110\DTS\ProviderDescriptors\ does not contain schema information for connection of type MySQL.Data.MySqlClient.MySqlConnection. So it looks like it can't the information and therefore I cannot map the tables properly. Any ideas on this would be ultra helpful...thanks in advance to All!

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• Powershell Script Scheduled Task Stopped Running (Could not Start)

  - by Hatsune Yuki

  I'm running a scheduled task (for Powershell Script) on Windows 2003 Server. I believe the script works fine. The task is scheduled to run every 10 minutes from 7:00am to 11:50pm everyday. However, it never gets to run more for than a day. It always stops some time in the afternoon (between 2pm and 6pm). I'm not sure exactly what happened but I always get the error The attempt to log on to the account associated with the task failed, therefore, the task did not run. The specific error is: 0x80070569: Logon failure: the user has not been granted the requested logon type at this computer. Verify that the task's Run-as name and password are valid and try again. It seems like most people with this error are saying that they need to make user "logon as a batch job". However, this option is greyed-out for me. I search for other places where users have similar problems but the solutions are not written in detail (some of them have something to do with GPO). I've only used the basic features of Windows Server and I have no clue how to get to the place they are referring to. Can someone please confirm whether "logon as a batch job" is indeed a solution and provide a detailed walkthrough on how to solve my problem? Thanks. p.s. someone suggested the website http://technet.microsoft.com/en-us/library/cc755659(v=ws.10) I tried to followed the method for web server with domain. However, got stuck on the 6th step where it mentions Group Policy Object. I don't know where it is.

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• Upgrade or replace?

  - by Felix

  My current PC is about four years old, although I have made upgrades to it throughout its existence. The current specs are: (old) Intel Pentium D 2.80Ghz (32K L1 / 2M L2), Gigabyte 945GCMX-S2 motherboard (old) 2.5GB DDR2 (slot0: 512MB @ 533Mhz; slot1: 2GB @ 667Mhz) (new) HIS Radeon HD 4670 - I think this is limited by the motherboard not supporting PCIe 2.0 (?) (old) WD Caviar 160GB - pretty slow (new) WD Caviar Black 640GB (if any more specs are relevant, let me know and I'll add them) Now, on to my question. I've been having performance issues lately, both in video games and in intensive applications. A couple of examples: Android application development (running Eclipse and the Android emulator) is painfully slow (on Linux). I only realized this when, at my new job as an Android dev, both tools are MUCH quicker. (I'm not sure what CPU I have there) The guys at my new job got me NFS Hot Pursuit, in which I barely get like 5-10FPS, even with graphics options turned all the way down My guess is that the bottleneck in my system is my CPU, so I'm thinking of upgrading to a Quad Core i5 + new motherboard + 4GB DDR3 (or more, 'cause I know you'll all jump and say 8GB minimum). Now: Is that a good idea? Is my CPU really a bottleneck, or is the whole system too old and I should replace it? I run Windows 7 on the old, 160GB HDD (which is on IDE, by the way). Could this slow down games as well? Should I get a new drive for Windows if I want to play new games? I know nothing about power supplies. Could that be a problem / will it be a problem if I upgrade to an i5? How come DiRT2 works on full graphics settings (pretty amazing graphics by the way) and NFS Hot Pursuit pulls only 5-10FPS?

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• ec2 spot instance for daily processing task

  - by chaft

  I don't have much experience as a sysadmin or with amazon aws, so I hope someone can explain in simple terms or refer me to a good guide on how to achieve the below. I have a system running on ec2 and amazon rds getting data in and saving it to the db. I need to run a script once a day (at the end of the day) to process all that data and prepare a daily report. This process will take approximately an hour to run. It needs to run on a high memory instance.. From what i've read so far, I guess the best way to do it is to have a high memory spot instance run every day, set it up to execute the script on startup and and shut down when done. Is that the right way to do it? If so, how to do it? how to tell the spot instance to run every day? through a cron job on the other server or is there a better way? How to set it up to run the script on startup? through cloudinit? Any help would be appreciated. One last thing, the job is not very time sensitive as long as it runs every day.. thanks

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• How to keep multiple servers in sync file wise?

  - by GForceSys

  I'm currently managing a cluster of PHP-FPM servers, all of which tend to get out of sync with each other. The application that I'm using on top of the app servers (Magento) allows for admins to modify various files on the system, but now that the site is in a clustered set up modifying a file only modifies it on a single instance (on one of the app servers) of the various machines in the cluster. Is there an open-source application for Linux that may allow me to keep all of these servers in sync? I have no problem with creating a small VM instance that can listen for changes from machines to sync. In theory, the perfect application would have small clients that run on each machine to be synced, which would talk to the master server which would then decide how/what to sync from each machine. I have already examined the possibilities of running a centralized file server, but unfortunately my app servers are spread out between EC2 and physical machines, which makes this unfeasible. As there are multiple app servers (some of which are dynamically created depending on the load of the site), simply setting up a rsync cron job is not efficient as the cron job would have to be modified on each machine to send files to every other machine in the cluster, and that would just be a whole bunch of unnecessary data transfers/ssh connections.

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• Printer spools but doesn't print

  - by DKNUCKLES

  I am having a bizarre issue with an end user who is unable to print to a USB attached printer. The environment is as Windows 7 machine with a Canon Pixma iP90 printer. The driver is installed (and has been re-installed several times), but whenever a print job is sent the printer spools but no printing ever occurs. The following is some relevant information I can confirm that the printer is spooling as the spool folder fills up, and the job "releases" and the spool folder empties I have turned off print spooling with no luck None of the features from the Canon utilities (ie Turn Printer Off) features work Computer recognizes the printer as being installed. When the cable is unplugged the printer icon grey's out in Devices and Printers Printer and cable are confirmed working as they work with other PC's in the office I have deleted the USB Root Hub devices and rebooted the machine with no luck No error messages are displayed or logged in the event viewer. The Canon diagnostics utility doesn't detect any problem and states the printer is functioning properly Printer is not shared User is able to print to other shared printers in the office Any help with this issue would be greatly appreciated.

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• How to use HttpContext.Current on asynchronous threads?

  - by Eran Betzalel

  I've a schedule tasks mechanism (very similar to DotNetNuke's) in my business logic library (a DLL that is used by ASP.Net website). When I use HttpContext.Current inside on of these tasks, it returns with a null value, because the current async thread (or task) was not initiated from a user's request. How can I use HttpContext.Current in these asynchronous threads? P.S - I think my question is more best-practices related than technical.

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• mySQL :syntax using in C#

  - by Meko

  Hi. I am using in C# MYsql .I have query that works if I run on MySql Workbench ,but in C# it does not return any value also does not give ant error too.There is only one different using on Mysql I use before table name databaseName.tableName , but in C# I think it doesn`t necessary. This is part of query which does not return anything. "(select Lesson_Name from schedule where Group_NO = (select Group_NO from sinif inner join student ON sinif.Group_ID=student.Group_ID where Student_Name=(?Student))"+ " And Day_Name =(select Day_Name from day inner join date ON day.Day_ID=date.DayName where Date=(?Date))" + "And Lesson_Time= (select Lesson_Time from clock where Lesson_Time <= (?Time)order by Lesson_Time DESC limit 0, 1) " + " And Week_NO = (select Week_NO from week inner join date ON week.Week_ID=date.Week_ID where Date=(?Date))) And Here all codes which executes when user click button. private void check_B_Click(object sender, EventArgs e) { connection.Open(); for (int i = 0; i < existingStudents.Count; i++) { MySqlCommand cmd1 = new MySqlCommand("select Student_Name,Student_Surname,Student_MacAddress from student ", connection); MySqlCommand cmd2 = new MySqlCommand("insert into check_list (Student,Mac_Address,Date,Time,Lesson_Name)"+ "values((?Student),(?MacAddress),(?Date),(?Time),"+ "(select Lesson_Name from schedule where Group_NO = (select Group_NO from sinif inner join student ON sinif.Group_ID=student.Group_ID where Student_Name=(?Student))"+ " And Day_Name =(select Day_Name from day inner join date ON day.Day_ID=date.DayName where Date=(?Date))" + "And Lesson_Time= (select Lesson_Time from clock where Lesson_Time <= (?Time)order by Lesson_Time DESC limit 0, 1) " + " And Week_NO = (select Week_NO from week inner join date ON week.Week_ID=date.Week_ID where Date=(?Date))))", connection); MySqlParameter param1 = new MySqlParameter(); param1.ParameterName = "?Student"; reader = cmd1.ExecuteReader(); if (reader.HasRows) while (reader.Read()) { if (reader["Student_MacAddress"].ToString() == existingStudentsMac[i].ToString()) param1.Value = reader["Student_Name" ]+" "+reader["Student_Surname"]; } reader.Close(); MySqlParameter param2 = new MySqlParameter(); param2.ParameterName = "?MacAddress"; param2.Value = existingStudentsMac[i]; MySqlParameter param3 = new MySqlParameter(); param3.ParameterName = "?Date"; param3.Value = DateTime.Today.Date; MySqlParameter param4 = new MySqlParameter(); param4.ParameterName = "?Time"; param4.Value = DateTime.Now.ToString("HH:mm"); cmd2.Parameters.Add(param1); cmd2.Parameters.Add(param2); cmd2.Parameters.Add(param3); cmd2.Parameters.Add(param4); cmd2.ExecuteNonQuery(); } connection.Close(); MessageBox.Show("Sucsess :)"); }

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