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  • Building vs buying a server for an academic lab [closed]

    - by Roy
    I'm looking for advice on the classic build vs buy question. We need a new linux server to run Matlab computation on in our lab (academic). Matlab parallel computing toolbox licence allows up to 12 local workers so we are aiming at a 12 core server with 4GB memory per core (total of 48gb). The system will have an SSD for the OS and a raid-5 (4x2tb) for data. I looked around and found a (relatively) cheap vendor, Silicon Mechanics, that offers a system to our liking (specs below) for $6732. However, buying the components from newegg cost only $4464! The difference is $2268 which is 50% of the base cost. If buying from a company can be thought of as a sort of insurance, basically my premiums are of 50% of the base cost which to me sounds like a lot. Of course any downtime is bad, but the work is not "mission critical", i.e. if it takes a few days to fix it when it breaks its no the end of the world. If it takes weeks to months then its a problem. If it breaks 2-3 times in 3 years, not too bad. If it breaks every month not good. In term of build experience, I set up a linux cluster in grad school (from existing computers) and I build my home pcs but I never built a server before. The server components I'm thinking about: 1 x SUPERMICRO SYS-7046T-6F 4U Tower Server Barebone Dual LGA 1366 Intel 5520 DDR3 1333/1066/800 ($1,050) 12 x Kingston 4GB 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10600) ECC Unbuffered Server Memory ($420) 2 x Intel Xeon E5645 Westmere-EP 2.4GHz LGA 1366 80W Six-Core ($1,116) 4 x Seagate Constellation ES 2TB 7200 RPM SATA 6.0Gb/s 3.5" ($1,040) 1 x SAMSUNG Internal DVD Writer Black SATA ($20) 1 x Intel 520 Series 2.5" 180GB SATA III MLC SSD $300 1 x LSI LSI00281 PCI-Express 2.0 x8 MD2 Low profile SATA / SAS MegaRAID SAS 9260CV-4i Controller Card, $695

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  • Exchange 2003 -- Mailbox Management not deleting ALL messages aged 30 days or older...

    - by tcv
    I've recently created a Mailbox Management task within Exchange 2003 that, every night, looks at the contents of the Deleted Items within a particular mailbox and deletes mail that's 30 days or older. The scheduled task ran on its own last night and I have confirmed that messages within the right mailbox and the right folder were, in fact, processed. Many mails were deleted ... but not never email older than 30 days. In fact, the choice seems kinda random. Last night 3/10/2010 was the 30 day watermark. Mails were deleted from 3/10/2010, sure enough, but not all of them. Mails older than 3/10/2010 were deleted as well, but, again, not all of them. The only criteria I have on the management -- aside from the single mailbox and single folder scopes -- is the age criteria. The size criteria is set to Any, meaning I don't care about the size. I care about the age. It's made me wonder where there is some sort of limit on how many mails can be processed? The schedule is set for 12am and 1am every night. Any hints appreciated.

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  • Finding matching columns in excel

    - by fakaff
    I've never used excel before so I need the simplest solution available, and this is a work assignment due this week so I didn't have time read much of the documentation. Basically, I have two tables, A and B, and they are both thousands of rows long. Description of my task: right now (since I don't know better) I'm manually doing this: Go to row i in table B. Select entries in columns B(a, b, c) of that same row. Look for a row in table A where column A(b) matches row B(a). Paste the entries of columns B(a) of row i at the end of the row found in the last step. Repeat for row i + 1. Example: row B(cat, dog, mouse) matches A(mammal, cat, Mr. Whiskers). So I would paste B after A and have A(mammal, cat, Mr. Whiskers, cat, dog, mouse). Note: I am not joining tables. I am merely extending table A by pasting row A(b) if row A(b) matches row B(a). Also, sometimes entries are spelled slightly differently. Using wildcards to search for candidates would be of help. As the description should let on, this task is very tedious and inefficient if I don't know how to automate some operations (there are thousands of entries). Any quick tips as to how to be more productive is a big help.

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  • Proper end of day sequence to maintain monitor config

    - by WarmBeer
    I've got an HP EliteBook 6930p that travels from home, where it is connected to individual cables, and work where there is a docking station. At both locations I have an external monitor as the secondary monitor and like to have the laptop screen as the primary, i.e. with the task bar. At the end of the day I close the laptop, which is supposed to set it to standby. When I get home I plug in the power cord and the external monitor cord and open the computer. When heading into work I close the computer and unplug everything. Inevitably when I open the computer at the new location the monitors are reversed, i.e. the primary, task bar display is on the external monitor and the laptop shows the secondary, even though when i click identify the laptop has the 1. I then have to disable the secondary display, switch the primary to the laptop and re-enable the secondary. I've tried locking the computer before closing and occasionally that works to keep the setup in place but not always. Any suggestions for how to keep the config in place during transport? ed

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  • CentOS 5 : error in installing php-imap

    - by TMMDev
    can someone please help me with this CentOS 5 question? I am trying to install php-imap, i tried yum install php-imap but I am getting the following output: Loaded plugins: fastestmirror, priorities, security Loading mirror speeds from cached hostfile * base: centos.hostingxtreme.com * epel: mirror.steadfast.net * extras: mirror.team-cymru.org * updates: mirror.beyondhosting.net Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package php-imap.x86_64 0:5.1.6-44.el5_10 set to be updated --> Processing Dependency: php-common = 5.1.6-44.el5_10 for package: php-imap --> Finished Dependency Resolution php-imap-5.1.6-44.el5_10.x86_64 from updates has depsolving problems --> Missing Dependency: php-common = 5.1.6-44.el5_10 is needed by package php-imap-5.1.6-44.el5_10.x86_64 (updates) Error: Missing Dependency: php-common = 5.1.6-44.el5_10 is needed by package php-imap-5.1.6-44.el5_10.x86_64 (updates) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest The program package-cleanup is found in the yum-utils package. I already have php-common installed, I ran "yum install php-common" and got the following output Loaded plugins: fastestmirror, priorities, security Loading mirror speeds from cached hostfile * base: centos.hostingxtreme.com * epel: mirror.steadfast.net * extras: mirror.team-cymru.org * updates: mirror.beyondhosting.net Setting up Install Process Package matching php-common-5.1.6-44.el5_10.x86_64 already installed. Checking for update. Nothing to do how can I fix this problem?

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  • SQL Server Installation: Is it 32 or 64 bit?

    - by CapBBeard
    Hi, Recently I was performing an OS upgrade on one of our DB servers, moving from Server 2003 to Server 2008. The DBMS is SQL Server 2005. While reinstalling SQL on the new Windows installation, I went to another of our DB servers to verify a couple of settings. Now, I always thought this second server was Server 2003 x64 + SQL 2005 x64 (from what I'd been told), but I now have my doubts about this. I now suspect that it is in fact only 32 bit SQL, however I'd like to verify this. Here's some details: The OS is definitely 64 bit. xp_msver shows Platform as NT INTEL X86 SELECT @@VERSION shows Microsoft SQL Server 2005 - 9.00.4035.00 (Intel X86)... However sqlservr.exe is not shown with '* 32' in taskmgr, does anyone know why this is the case, if it is in fact 32 bit as claimed? Despite this, it does seem to be running out of the x86 program files folder. If I do the same checks on a confirmed 64 bit installation, it does give back the expected 64 bit readings, which can only prove that this server in question is only running in 32 bit. Now, that being the case, the question arises about how much memory this '32 bit' install can use. Task manager reports about 3.5GB memory usage for sqlservr.exe (The server has 16GB physical). I suspect that AWE has not been configured at all, and therefore the server will be significantly under-utilised (remembering that the OS is 64 bit) if SQL is simply using a 32bit address space. Is this assumption correct? I feel the server should have SQL reinstalled as 64 bit in order to fully utilise the hardware platform, however it is currently heavily in production; this will be no easy task. I suspect we may just have to configure AWE correctly and let it be for the time being (Unless this is a bad idea?). I apologise that this question is a little vague/lost; I'm no SQL expert, just trying to get a handle on what's going on here.

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  • make pentaho report for ubuntu 11.04

    - by Hendri
    currently i'm trying to install Pentaho Reports for OpenERP which is refer from https://github.com/WillowIT/Pentaho-...rver/build.xml i ever installed on some laptops which is Windows Based and it's working, but currently i'm trying on UBuntu 11.04 OS, it prompted me error like this "error build.xml:18: failed to create task or type.." below is the steps i did : 1. install java-6-openjdk comment : "apt-get install java-6-openjdk" then i set installed java jdk into java_home environment command: "nano /etc/environment" add environment with this new line : JAVA_HOME="/usr/lib/jvm/java-6-openjdk" I install apache ant command : "apt-get install ant" followed by setting the evnironment command: "nano /etc/environment" add environment with this new line : ANT_HOME="/usr/share/ant" try to check installation with command "ant"... I get message like this: Buildfile: build.xml does not exist! Build failed then download java server from https://github.com/WillowIT/Pentaho-...rver/build.xml and then copied to Ubuntu share folder and then on command form, i goto extracted path which is share folder i mentioned and executed command "ant war " and i got error message : BUILD FAILED /share/java_server/build.xml:18: problem: failed to create task or type antlibrg:apacge.ivy.ant:retrieve cause: The name is undefined. Action:Check the spelling. Action:Check that any custom taks/types have been declared Action:Check that any /declarations have taken place. No types or taks have been defined in this namespace yet This appears to be an antlib declaration. Action:Check that the implementing library exists in one of: -/usr/share/ant/lib -/root/.ant/lib -a directory added on the command line with the -lib argument Total time:0 seconds is there any compability issue? or i miss out some steps? i'm in the some project to rush with for reporting, so please help me to solve this issue i look forward to your corporation to help me solve this issue, thanks a lot in advance Thx Best Regards,

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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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  • Why does Windows/Microsoft Updates always take such a long time to detect available updates?

    - by RLH
    It's a common task for many of us who work in any form of IT position using Windows. Eventually you have to install/re-install a version of Windows and what follows is a very long OS updating process. For a long time I have accepted the fact that this is a slow process and that's all there is to it. There is a lot to download, and some updates require restarts followed by further updates... Ugh! This morning I had to go through the process of installing Windows XP with SP3. I'm installing the OS on a VM on an SSD and I've been working on this thing for over 6 hours. Although, think there are many ways to knit-pick this process for improvements, there is one step that is always particularly slow and I can not figure out a good reason why. That step is the detection step on a manual update. Specifically, when navigate to the Windows (or Microsoft) Updates page, and then click the 'Custom' button to detect your updates. It appears that your PC just sits there for a painful amount of time. Check your Task Manager and it looks like your PC is, in fact, locked because your CPU isn't cooking but that's certainly not the case. Somethings happening but I have no clue what's going on? What is the updating software doing? If the registry was being searched, shouldn't my CPU usage peak? Does anybody know what's happening? I can loosely justify why some of the steps in the update process take so long. However, this one doesn't seem to have any reasoning.

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  • To what extent is size a factor in SSD performance?

    - by artif
    To what extent is the size of an SSD a factor in its performance? In my mind, correct me if I'm wrong, a bigger SSD should be, everything else being equal, faster than a smaller one. A bigger SSD would have more erase blocks and thus more leeway for the FTL (flash translation layer) to do garbage collection optimization. Also there would be more time before TRIM became necessary. I see on Wikipedia that it remarks that "The performance of the SSD can scale with the number of parallel NAND flash chips used in the device" so it seems throughput also increases significantly. Also many SSDs contain internal caches of some sort and presumably those caches are larger for correspondingly large SSDs. But supposing this effect exists, I would like a quantitative analysis. Does throughput increase linearly? How much is garbage collection impacted, if at all? Does latency stay the same? And so on. Would the performance of a 8 GB SSD be significantly different from, for example, an 80 GB SSD assuming both used high quality chips, controllers, etc? Are there any resources (webpages, research papers, presentations, books, etc) that discuss correlations between SSD performance (4 KB random write speed, latency, maximum sequential throughput, etc) and size? I realize this does not really sound like a programming question but it is relevant for what I'm working on (using flash for caching hard drive data) which does involve programming. If there is a better place to ask this question, eg a more hardware oriented site, what would that be? Something like the equivalent of stack overflow (or perhaps a forum) for in-depth questions on hardware interfaces, internals, etc would be appreciated.

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  • RHEL 5.3 Kickstart - How specify location of individual package in Workstation folder?

    - by Ed
    I keep getting "package does not exist" errors during the install. I made a kickstart ISO to create an unattended install of a RHEL 5.3 build machine for C++ software releases. It pulls the kickstart config file from our internal web server. This is handy; it makes it easy to test and modify without having to make a new ISO. And I plan to check it in to version control if I can get it working. Anyway, the rpm packages are located in two folders on the disk; Client and Workstation. The packages install fine for the ones that are physically located under the Client folder. It cannot find those under the Workstation folder such as as doxygen and subversion complaining that packages do not exist. Is there a way to specify the individual package location? # ----------------------------------------------------------------------------- # P A C K A G E S # ----------------------------------------------------------------------------- %packages @gnome-desktop @core @base @base-x @printing @development-tools emacs kexec-tools fipscheck xorg-x11-server-Xnest xorg-x11-server-Xvfb #Packages Located in Workstation Folder *** Install can not find any of these ?? bison doxygen gcc-c++ subversion zlib-devel freetype-devel libxml2-devel Thanks in advance, -Ed

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  • How to implement a virtual server running Ubuntu inside a fileserver in windows?

    - by user541445
    I work in a company that has some limitations regarding their budget. They need client/server aplication. I can code the aplication, I've made mini tests on primordial applications that work. The thing is that they only have fileservers, and the application they need must be concurrent compliant, so the database must be in their local network (Fileserver is the only choice). So far, I have explored almost any option available, starting with: Desktop databases. Access (We have a license)(But concurreny is just not effective, besides it's a windows software, yuck). Sqlite (Nice, but since the information they manage is a lot, I've performed some concurrency tests with INSERTs and doing SELECTS at the same time). It fails, somehow it just stops inserting. Open office Base (I dismember a base office only to see that it was a file mode HSQLDB). I've tried, not concurrent at all. Etc (You name the Open source Desktop Database manager, and yes, I've tried that one.) Server databases Call me a stubborn person, but reading some server databases documentation say that their databases will work in a file mode. I've tried a lot of products. Postgres, MySQL, FireBird, H2, Derby, Oracle Express, IBM DB2 Express, etc. So, I really need a hand here, I've been doing this install/delete/depression thing with a lot of databases for 3 weeks, until I got with a crazy idea and I just came here to express it. So, my question comes down to this: Installing a light virtual OS software like Virtual PC and then installing in there a Server OS like an Ubuntu server inside that virtual software will work? Will it work 24/7 or when I close the virtual pc software? Will this work in a fileserver? Any suggestion, answer, critic to the place I work, crazy new concurrent database that will work in fileserver will be most than welcome.

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  • Why am I missing 4GB of RAM on Windows Server 2008 R2 64bit?

    - by Nick G
    I noticed today that a server was very low on memory. It physically has 8GB installed and runs Windows 2008 R2 Standard 64bit. It also hosts 2 virtual machines using HyperV. Server is Dell Poweredge R510. However the host OS reports in task manager that it only has 4GB of RAM, despite actually having 8GB and it being a 64bit OS. Computer properties shows Installed memory: 8.00GB (3.99GB usuable). Why would "usable" be half the real RAM installed under a 64bit OS? Additionally nearly all of the 4GB of visible RAM on the host OS is being used by something without anything showing up in task manager (presumably HyperV as it's allocated 3.6GB to the virtual machines its hosting). However that doesn't explain where the other 4GB has gone which Windows can't even see. Where is my missing 4GB of RAM? Update: Dell OpenManage says this: Total Installed Capacity 8192 MB Total Installed Capacity Available to the OS 4096 MB So looks like Nathan's suggestion of memory mirroring might be correct. I'll have to reboot to check this (I think?) Update 2 OK. So I reboot and I get a message saying "the amount of system memory has changed" (despite not having touched the hardware in a year). Once Windows has booted, all 8GB is visible again. Looks like I probably have a hardware RAM issue (I'll perhaps try reseating it whenever I can chuck everyone off the server next). Thanks for your answers and comments. I was hoping it was going to be the mirrored-RAM option but it seems not - that's not even mentioned in the BIOS.

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  • Nginx: Loopback connection via PHP's getimage size crashes server (Magento's CMS)

    - by Alex
    We were able to trace down a problem that is crashing our NGINX server running Magento until the following point: Background info: Magento Backend has a CMS function with a WYSIWYG editor. This editor loads some pictures via a controller in magento (cms/directive). When we set the NGINX error_log level to info, we get the following lines (line break inserted for better readability): 2012/10/22 18:05:40 [info] 14105#0: *1 client closed prematurely connection, so upstream connection is closed too while sending request to upstream, client: XXXXXXXXX, server: test.local, request: "GET index.php/admin/cms_wysiwyg/directive/___directive/BASEENCODEDIMAGEURL,,/ HTTP/1.1", upstream: "fastcgi://127.0.0.1:9024", host: "test.local" When checking the code in the debugger, the following call does never return (in ´Varien_Image_Adapter_Abstract::getMimeType()` # $this->_fileName is http://test.local/skin/adminhtml/base/default/images/demo-image-not-existing.gif` # $_SERVER['REQUEST_URI'] = http://test.local/admin/cms_wysiwyg/directive/___directive/BASEENCODEDIMAGEURL list($this->_imageSrcWidth, $this->_imageSrcHeight, $this->_fileType, ) = getimagesize($this->_fileName); The filename requests is an URL to the same server which is requesting the script a link to a static .gif that is not existing. Sample URL: http://test.local/skin/adminhtml/base/default/images/demo-image-not-existing.gif When the above line executed, any subsequent request to the NGNIX server does not respond any more. After waiting for around 10 minutes, the NGINX server starts answering requests again. I tried to reproduce the error with a simple test script that only calls getimagesize() with the given URL - but this not crash. It simple leads to an exception saying that the URL could not be loaded (which is fine as the URL is wrong)

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  • "Network is unreachable" When pinging google, can connect to internal computers on debian VM

    - by musher
    Similar to this SU question: "Network is unreachable" when attempting to ping google, but internal addresses work Actually, it's pretty much the same base issue. I went through that thread trying to find a solution, I changed my resolv.conf: before: domain [my work domain] search [my work domain] nameserver [my gateway] nameserver [my gateway2] I changed it to: after: domain [my work domain] search [my work domain] nameserver 8.8.8.8 nameserver 8.8.4.4 However, any time I reboot the computer the resolv.conf gets overwritten to the previous version (the 'before' above). The issues began after I installed virtualbox additions, X server and (specifically) LXDE: Cat of apt history.log: Start-Date: 2014-08-21 10:03:42 Commandline: apt-get install virtualbox-guest-utils virtualbox-guest-dkms Install: x11-xkb-utils:amd64 (7.7+1, automatic), libxaw7:amd64 (1.0.12-2, automatic), xfonts-utils:$ End-Date: 2014-08-21 10:03:56 Start-Date: 2014-08-21 10:18:39 Commandline: apt-get install lxde Install: desktop-base:amd64 (7.0.3, automatic), libgoa-1.0-0b:amd64 (3.12.4-1, automatic), lxmenu-d$ End-Date: 2014-08-21 10:21:52 Start-Date: 2014-08-21 10:26:40 Commandline: apt-get upgrade Upgrade: libio-socket-ssl-perl:am ifconfig on the guest: root@Peridot:~# ifconfig eth0 Link encap:Ethernet HWaddr 08:00:27:89:c9:20 og inet addr:172.31.2.102 Bcast:172.31.2.255 Mask:255.255.255.0 inet6 addr: fe80::a00:27ff:fe89:c920/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2281 errors:0 dropped:1 overruns:0 frame:0 TX packets:463 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:266507 (260.2 KiB) TX bytes:120554 (117.7 KiB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:4 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:240 (240.0 B) TX bytes:240 (240.0 B) The adapter in VBox is a bridged adapter directly onto my ethernet connection; as are my other 2 VMs (which work) Other SU questions I've tried: "connect: Network is unreachable" in VirtualBox VM

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  • disk space keeps filling up on EC2 instance with no apperent files/directories

    - by sasher
    How come os shows 6.5G used but I see only 3.6G in files/directories? Running as root on an Amazon Linux AMI (seems like Centos), lots of free memory available, no swapping going on, no apparent file descriptors issue. The only thing I can think of is a log file that was deleted while applications append to it. Disk space usage is slowly but continuously rising towards full capacity (~1k/min with very small decreases from time to time) Any explanation? Solution? du --max-depth=1 -h / 1.2G /usr 4.0K /cgroup 22M /lib64 11M /sbin 19M /etc 52K /dev 2.1G /var 4.0K /media 0 /sys 4.0K /selinux du: cannot access /proc/14024/task/14024/fd/4': No such file or directory du: cannot access<br/> /proc/14024/task/14024/fdinfo/4': No such file or directory du: cannot access /proc/14024/fd/4': No such file or directory du: cannot<br/> access/proc/14024/fdinfo/4': No such file or directory 0 /proc 18M /home 4.0K /logs 8.1M /bin 16K /lost+found 12M /tmp 4.0K /srv 35M /boot 79M /lib 56K /root 67M /opt 4.0K /local 4.0K /mnt 3.6G / df -h Filesystem Size Used Avail Use% Mounted on /dev/xvda1 7.9G 6.5G 1.4G 84% / tmpfs 3.7G 0 3.7G 0% /dev/shm sysctl fs.file-nr fs.file-nr = 864 0 761182

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  • Is there any functional-like unix shell?

    - by Caruccio
    I'm (really) newbie to functional programming (in fact only had contact with it using python) but seems to be a good approach for some list-intensive tasks in a shell environment. I'd love to do something like this: $ [ git clone $host/$repo for repo in repo1 repo2 repo3 ] Is there any Unix shell with these kind of feature? Or maybe some feature to allow easy shell access (commands, env/vars, readline, etc...) from within python (the idea is to use python's interactive interpreter as a replacement to bash). EDIT: Maybe a comparative example would clarify. Let's say I have a list composed of dir/file: $ FILES=( build/project.rpm build/project.src.rpm ) And I want to do a really simple task: copy all files to dist/ AND install it in the system (it's part of a build process): Using bash: $ cp ${files[*]} dist/ $ cd dist && rpm -Uvh $(for f in ${files[*]}; do basename $f; done)) Using a "pythonic shell" approach (caution: this is imaginary code): $ cp [ os.path.join('dist', os.path.basename(file)) for file in FILES ] 'dist' Can you see the difference ? THAT is what i'm talking about. How can not exits a shell with these kind of stuff build-in yet? It's a real pain to handle lists in shell, even its being a so common task: list of files, list of PIDs, list of everything. And a really, really, important point: using syntax/tools/features everybody already knows: sh and python. IPython seams to be on a good direction, but it's bloated: if var name starts with '$', it does this, if '$$' it does that. It's syntax is not "natural", so many rules and "workarounds" ([ ln.upper() for ln in !ls ] -- syntax error)

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  • How to modify a message, so it will be for 100% recognizable as spam by Exchange junk e-mail filter

    - by user71061
    Hi! I have an sendmail server, sitting in front of my Exchange server. This server filter spam with SpamAssassin (and do it incredibly well!), but it merely tag spam messages with appropriate header flags and by modifying message subject. When such a message arrives to user mailbox on Exchange server, where it is examined by Echange/Outlook junk e-mail filter, which put most of spam in junk message folder. And that is my problem: most, but not all! To put all spam in junk e-mail message folder, user has to define an rule, saying f.e: "If header contains text 'X-Spam-Flag: YES' then move it to 'Junk e-mail messages' folder". Fine, but it has to be done on every user (for some users, this task is too "complicated" to made it themselves :-) . So I want to know, how could I modify message header in such a way, that Exchange junk e-mail filter will for 100% recognize this message as a spam, freeing user from task of defining his own rule. Some solution could be defining such a rule by using AD and group policy, but I wan't to avoid this due to many possible caveats: there are so many combination of different operating system and different Outlook versions, and to be honest, I doubt if it is even possible.

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  • Despeckle line art

    - by Dour High Arch
    We have a number of line-art charts unfortunately saved as JPEGs. They are now riddled with distracting compression artifacts or "speckles". Is there any way of removing these? I do not have the original files and it will be very difficult to recreate them. I am running Windows 7 and tried Paint.Net; none of the filters help. Posterize washed out all the colors and leaves the speckles. Blur makes text unreadable. Noise Reduction wrecks antialiasing of curved lines, and perversely enhances the speckles, making them look like checkerboards. Yes, I have Googled for software to do this; there are many programs that advertise despeckling but, after my experience with Paint.Net, do not want to experiment with applications that show no before and after images. The only example I have seen that does what I want is from a Photoshop tutorial. I have dozens of files and the tutorial requires considerable manual fine-tuning. I would prefer to automate or batch-process this task. Commercial apps are fine, but I do not want to spend over $600 and learning a complex program for a single task.

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  • Strange Behaviour with Unicode Characters in Windows

    - by open_sourse
    Ok, I do not know if this is a programming question, but it certainly is a technical one so I am asking it here. I was working on some internationalization stuff in my PHP code, and in order to ensure that my generated HTML shows up Unicode correctly based on the encoding and stuff I decided to add some Chinese text to my PHP page, which then echoes it into the browser to complete my test case. So I went into google and typed "Chinese", copied the first Chinese text that the search returned (which was ??/??). I then copied it into Notepad++ which is my editor, and to my surprise showed up as boxes similar to [][]/[][]. So I thought the encoding in Notepad++ was messed up and I changed the encoding to UTF-8 and UCS, neither worked. I did it fresh in a newly encoded file, still I got the boxes. The same content when I paste into Google and StackOverFlow (like I did in this posting) shows up correct Chinese! I even opened up Windows Clipboard Viewer and the content is represented in the Clipboard as boxes! I tried pasting it into Windows Explorer address bar and using to rename a file to, but I still get boxes. But it shows up correctly when pasted into my Chrome Browser address bar! Is this a Windows issue? Since I am able to paste it correctly in SO, the data in memory should be encoded correctly right? But if that is the case why does it show up as boxes in the Clipboard Viewer? I am confused here...By the way I am using Windows XP with SP3. (I am asking this question here, even if it is not programmatic, because it is preventing me from running my programming test cases..)

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  • How to set up a server without a hosting control panel

    - by A4J
    I have always used a control panel on my dedicated servers - from cPanel to Plesk to Virtualmin, and I am now considering ditching a CP altogether and manually editing config files. My requirements are fairly simple, I will host multiple sites on the server; some Apache with PHP & Mysql and some Passenger with Rails & Postgres. All will require email smtp/pop. FTP/Stats will not be required. Could someone please give me a quick run-down of what I would need to do - in terms of installing software and configuration? My server will come with a base install of CentOS 6.4 minimal. My thoughts so far: Install/update latest versions of MySQL & Postgres (are they 'safe' out of the box? Or do I need to do anything else like set up root passwords etc?) Install Apache & PHP (again, are the base installs good to go or do they require security tweaks?) Set up nameservers/hostnames/reverse DNS etc (Any guides on how to do this please?) Install Rubygems Install and configure Dovecot and Postfix (any tips on doing this? Or links to how-tos that cover it please?) Set up each website - any links to guides on how to do this? Install/configure firewall (or is the default install good to go?) Any other tips or advice would be greatly appreciated, as would links to guides or how-tos.

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  • Determining how all memory is used in Windows Server 2008

    - by Mojah
    Hi, I have a Windows Server 2008 system, which has 12GB of RAM. If I list all processes in the Task Manager, and SUM() the memory of each process (Working Set, Memory (Private Working Set), Commit Size, ...), I never reach more than 4-5GB that should be "in use". However, task manager reports this server has 11GB in use via the "Performance" tab. I'm failing in determining where all that used RAM is going. It doesn't seem to be system cache, but I can not be sure. It might be a memory leak in one of the appliances, but I'm struggling to find out which one. The server's memory keeps filing up, and eventually forces us to reboot the device to clear it. I've been reading up on how RAM assignments work on Windows Server: RAM, Virtual Memory, Pagefile and all that stuff: http://support.microsoft.com/kb/2267427 What's the best way to measure? http://www.zdnet.com/blog/bott/windows-7-memory-usage-whats-the-best-way-to-measure/1786 Configure the file system cache in Windows: http://smallvoid.com/article/winnt-system-cache.html But I fear I'm stuck without ideas at the moment.

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  • Slow loading Magento Commerce homepage

    - by Matt
    I have recently changed by website and it is really loading slowly :- dancemidisamples.com here is a report http://www.webpagetest.org/result/120906_78_ANK/ As far as I can tell the is a issue with this section of code <link rel="icon" href="http://www.dancemidisamples.com/skin/frontend/base/default /favicon.ico" type="image/x-icon" /> <link rel="shortcut icon" href="http://www.dancemidisamples.com/skin/frontend/base/default/favicon.ico" type="image/x-icon" /> <script type="text/javascript"> //<![CDATA[ var urlSkinsite='http://www.dancemidisamples.com/skin/frontend/em0040/default/'; //]]> </script> <!--[if lt IE 7]> <script type="text/javascript"> //<![CDATA[ var BLANK_URL = 'http://www.dancemidisamples.com/js/blank.html'; var BLANK_IMG = 'http://www.dancemidisamples.com/js/spacer.gif'; //]]> </script> <![endif]--> Does anyone have any ideas, people have told me it my DNS but it has a 49ms response rate according to http://www.webpagetest.org/result/120906_78_ANK/1/details/cached/ We are hosted with rackspace so I dont see how it could be the server. Its a dedicated server not cloud hosted

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  • How can I import tasks into Project that have already been started?

    - by unknown
    I am writing a feature to import tasks from an online bug tracking / project management tool into Microsoft Project, primarily for resource leveling. Currently I am importing all tasks in as Fixed work, and giving them an assignment to a single resource for 100% of the work. The duration is then dynamically calculated, which at import time is equal to the amount of work. However, I am not a project manager by any means, and am having difficulty on how to get the start dates to calculate correctly. I've never used Project either. I am using Schedule From Start and setting the Project Start Date to the date the contract was signed / work was approved. However, this can be in the past, and I do not want current tasks scheduled from that date. Should it be today then? Another problem I have is with tasks that were already started. I have remaining work set, and I was placing a constraint on them to be started on the day the work was first applied. However, the remaining work for the task would be scheduled from that date, which was sometimes in the past. Using task constraints, a project start date, and whatever other settings available to me that I don't know about, what is the correct way to have the tasks scheduled?

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  • cpusets not working - threads aren't running in the cpuset I specified?

    - by lori
    I have used cpuset to shield some cpus for exclusive use by some realtime threads. Displaying the cpuset config with the test app RealtimeTest1 running and its tasks moved into the cpusets: $ cset set --list -r cset: Name CPUs-X MEMs-X Tasks Subs Path ------------ ---------- - ------- - ----- ---- ---------- root 0-23 y 0-1 y 279 2 / system 0,2,4,6,8,10 n 0 n 202 0 /system shield 1,3,5,7,9,11 n 1 n 0 2 /shield RealtimeTest1 1,3,5,7 n 1 n 0 4 /shield/RealtimeTest1 thread1 3 n 1 n 1 0 /shield/RealtimeTest1/thread1 thread2 5 n 1 n 1 0 /shield/RealtimeTest1/thread2 main 1 n 1 n 1 0 /shield/RealtimeTest1/main I can interrogate the cpuset filesystem to show that my tasks are supposedly pinned to the cpus I requested: /cpusets/shield/RealtimeTest1 $ for i in `find -name tasks`; do echo $i; cat $i; echo "------------"; done ./thread1/tasks 17651 ------------ ./main/tasks 17649 ------------ ./thread2/tasks 17654 ------------ Further, if I use sched_getaffinity, it reports what cpuset does - that thread1 is on cpu 3 and thread2 is on cpu 5. However, if I run top -p 17649 -H with f,j to bring up the last used cpu, it shows that thread 1 is running on thread 2's cpu, and main thread is running on a cpu in the system cpuset (Note that thread 17654 is running FIFO, hence thread 17651 is blocked) PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ P COMMAND 17654 root -2 0 54080 35m 7064 R 100 0.4 5:00.77 3 RealtimeTest 17649 root 20 0 54080 35m 7064 S 0 0.4 0:00.05 2 RealtimeTest 17651 root 20 0 54080 35m 7064 R 0 0.4 0:00.00 3 RealtimeTest Also, looking at /proc/17649/task to find the last_cpu each of its tasks ran on: /proc/17649/task $ for i in `ls -1`; do cat $i/stat | awk '{print $1 " is on " $(NF - 5)}'; done 17649 is on 2 17651 is on 3 17654 is on 3 So cpuset and sched_getaffinity reports one thing, but reality is another I would say that cpuset is not working? My machine configuration is: $ cat /etc/SuSE-release SUSE Linux Enterprise Server 11 (x86_64) VERSION = 11 PATCHLEVEL = 1 $ uname -a Linux foobar 2.6.32.12-0.7-default #1 SMP 2010-05-20 11:14:20 +0200 x86_64 x86_64 x86_64 GNU/Linux

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