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  • how does a web application cope with thousands of requests?

    - by netrox
    I went to a few websites and noticed that they all use AJAX technology for many tasks such as chat, messages, and so forth. They use a lot of httprequests obviously. My question is if you build a simple website using AJAX and you expected only few people per hour and then you start to have like 1,000 members logged per hour - can a single web application handle more requests per hour if you just upgrade to faster bigger servers or do you have to rewrite the code? Exactly how do you "scale" the web application?

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  • Where does PGP keep its license file within OSX?

    - by romant
    I was using a trial from PGP. Now have a license supplied by the company I work for. Upon trying to overwrite/upgrade - PGP is reporting that its using the 'old', namely trial license. Which has long expired. How can I completely rid my machine of PGP - and thus be able to install a fresh copy? Where does this pesky license file reside? OS: 10.6.2 PGP: 10

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  • 4.5 Load average on single CPU

    - by Webnet
    I'm currently looking at... top - 16:27:37 up 27 min, 1 user, load average: 4.96, 3.75, 2.87 Tasks: 141 total, 6 running, 135 sleeping, 0 stopped, 0 zombie Cpu(s): 91.4%us, 6.9%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.3%hi, 1.3%si, 0.0%st Mem: 514952k total, 507500k used, 7452k free, 5652k buffers Swap: 1044184k total, 281400k used, 762784k free, 89164k cached This is a single 2.0 Ghz CPU with 2 GB RAM Is it time for an upgrade? I'm watching and it seems to stick around 50% CPU "us" which I assume means usage.

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  • Can a 300W power supply support two additional hard drives?

    - by Josh
    I am thinking of purchasing the Dell I580-5108NBC, but I want to add 2 1TB SATA drives in a RAID5 config. The system only has a 300W power supply, and already has a 1TB drive and a DVD burner. Is the 300W power supply sufficient to support two additional drives, or should I upgrade it? Or, can I simply unplug the DVD burner?

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  • Connecting Windows 7 to NT4 domain?

    - by Shane
    My office domain is NT4, but I have a windows 7 laptop. I've been told that I won't be able to log on. Does anyone know a work around for this? They're planning to upgrade to Windows 2003, but that could be a little while.

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  • vmware esx licensing limit on vCPUs per VM

    - by maruti
    when a server has more than 8 cores per CPU (total 16 logical procs) and ESX standard license is applied, what does it mean for VM performance? Since each VM on host is allowed only 4 vCPUs max VMWare ESX/ESXi limits the no of vCPUs per guest VM depending on the license: standard Lic = 4 vCPU Advanced Lic = 4 since i dont know exact number is there need to upgrade to Advanced version for any perf benefits if none of VMs have workloads that need more than 4 vCPUs?

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  • What is the best desktop KVM?

    - by Mat
    What is the best KVM for a programmer? I need to switch between a locked-down corporate box and my development machine rather than between servers. I've used a Black Box four port PS/2 VGA KVM switch for many years, but with the advent of USB-only PCs and DVI I need to upgrade as it doesn't play well with USB to PS/2 converters. My ideal features: USB keyboard and mouse input/output dual monitor switching four ports, but two would do at a push switch on middle mouse click, or from a keyboard hotkey at a pinch

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  • Cannot load from mysql.proc

    - by Timo Schneider
    I can not dump my MySQL-Databeses, however here's the error message: Cannot load from mysql.proc. The table is probably corrupted Also mysql_upgrade seems not to work: # mysql_upgrade Looking for 'mysql' as: mysql Looking for 'mysqlcheck' as: mysqlcheck Running 'mysqlcheck with default connection arguments mysqlcheck: Got error: 1045: Access denied for user 'root'@'localhost' (using password: NO) when trying to connect FATAL ERROR: Upgrade failed What does that mean ?

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  • SQL Server 2000 Client won't connect

    - by alimack
    One day instead of connecting to the database my SQL Server Management gave me the following error: "Data Source name not found & no default driver found" Note it had been working for several years before this, all that had changed was an upgrade to Office (97 -2000) and the monthly Windows patches. I tried rebooting, re-installing both the SQL Server 2000 and 2005 clients on the machine but no joy. I can access the database(s) from other machines.

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  • Ubuntu most menu items dark-on-dark

    - by krzysz00
    Since to ubuntu 10.04 upgrade move of my drop-down menus have been dark-on-dark text, which becomes readable (changed background) when selected. I don't know what's causing this but it's a problem on Ambience and Radiance both. Any hints?

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  • Package <blah> does not exist - NetBeans 6.8 & Windows 7

    - by bjmac
    I'm using NetBeans 6.8 on Windows 7. Upgrade from WinXP and NetBEans 6.7. Now my existing java web app project is no longer able to import/find the packages I've developed. And yet the project still compiles and runs OK. I've tried changing the Java Platform/JDK from 1.6.0_10 back to JDK 1.5.0_22 but I still receive errors package does not exist. All other libraries and packages are able to import OK ...

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  • How to get the installed Memory Type

    - by balexandre
    Windows 7 could be better at this, it tells everything about the computer CPU but only the Memory amount Microsoft should add information about DDR type, speed and maybe CL as well. While this never happens, What's the best and easy way to check the installed memory so we can buy and upgrade it? I was thinking a simple software so I don't need to install the full SiSoft Sandra for example, just looking for something small, only for the memory part.

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  • IIS 7.5 - how to get?

    - by Chris Lively
    My servers are currently running IIS 7 (windows 2008). Is there any way to get IIS 7.5 without upgrading to 2008 R2? The reason I ask is that they are 32 bit servers and there is no upgrade path from 32 bit 2008 to 2008 R2.

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  • OpenSSL 0.9.8k or higher on CentOS 5?

    - by davr
    I need to upgrade OpenSSL on my CentOS server to 0.9.8k or higher, however the latest version in the official CentOS repositories is 0.9.8e, much too old. Is there a 3rd party repository I can use that has newer versions of OpenSSL libraries? If not, can someone provide a quick walkthrough of compiling a newer version of OpenSSL for CentOS? I need it to replace the built in version, so the walkthrough would have to explain how to create a CentOS-compatible RPM.

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  • external disk suddenly unmounting

    - by hasen j
    Platform: Ubuntu 9.10 Disk Brand/model: WD My Book The external hard disk suddenly unmounts after a while. I suspect it's due to it "sleeping" to save power. I don't recall the problem having occurred before the upgrade to Karmic. How can this be fixed?

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  • HDD Producing high pithched beep noise

    - by POTHEN
    Recently I had an upgrade on one of my PC I added a 512Mb Nvidia Graphic card and 500GB seagate 7200Rpm HDD, Now the new HDD is producing a high pitched squeek/beep i cant really tell and on reboot my XP sector 63 gets corrupted, so I get reboot error. I gave the HDD for replacement but the replaced one too makes the noice, yet the HDD does not produce sound on my gaming rig.

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  • Changing my PC's motherboard

    - by Shyam
    I have a Asus A7N266 motherboard currently with a Athlon XP 1.8GHz processor that I assembled in 2002. The Video RAM for this is just 32 MB. I would like to upgrade my motherboard and retain the Processor. Is that advisable? If so, could you also suggest a good motherboard that has a better VGA capability?

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  • FreeBSD 32bit to 64bit migration

    - by eugene y
    I need to transfer my LAMP server (FreeBSD 7.0 i386) to another hosting. I would like to also upgrade to the 64bit version (to eliminate 4GB memory limit). Anyone have some pre-destructive suggestions? Any tutorials that you're familiar with that give an idea of the gotchas? Thanks!

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  • Editing the FTP Root page

    - by user31542
    We have an ancient FTP server that runs Server 2000 and when our users use IE to login they are Presented with the following error: To view this FTP site in Windows Explorer, click Page, and then click Open FTP Site in Windows Explorer. The problem is with the upgrade to IE 7 "Page" has been replaced by "View". Does anyone know a way to get into the default page and edit its settings to update it?

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