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  • MySQL writing to net

    - by seengee
    I have a server that has been running at high CPU load due to MySQL activity, when i run the command mysqladmin pr i often see a few queries with the state "writing to net". I had a look around and couldn't find much out about this other than the fact i read somewhere that this shouldnt be expected in usual MySQL activity. Any ideas what this could mean? Running MySQL 5.0.91-community on CentOS 4.8

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  • what does "openssl FIPS mode(0) unavailable" mean?

    - by fisherman
    I compiled and installed strongswan ipsec vpn successfully, as demonstrated by the fact that the service starts successfully: as3:~# ipsec restart Stopping strongSwan IPsec... Starting strongSwan 5.0.4 IPsec [starter]... as3:~# When I run command ipsec pki --gen --outform pem > caKey.pem I see the error: as3:~# ipsec pki --gen --outform pem > caKey.pem openssl FIPS mode(0) unavailable as3:~# What does "openssl FIPS mode(0) unavailable" mean? How to fix it?

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  • Possible to (re)sync 2 drives into RAID 1 Array?

    - by MsLis
    Have an XP machine with 2 drives configured in a RAID 1 array. Trying to fix a boot problem, I took the drives out to run chkdsk on them, and I accidentally got them out-of-sync (event logs, etc). Is there any way to duplicate the contents of one drive onto the other to restore their RAID-ness, or have I really messed myself up?

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  • Does Windows 8 Support 16-bit Programs?

    - by Synetech
    With Vista and up, 64-bit versions of Windows no longer support 16-bit programs, but 32-bit versions can still run them. Windows 8 has changed a lot of things from even Windows 7, and there were rumors a while back that it would only be available in 64-bit[1][2] which seems not to be the case anymore. It’s no secret thet Microsoft is pushing users to migrate to 64-bit systems. Have they dropped 16-bit support from Windows 8 altogether (including 32-bit versions)?

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  • Subtracting two lists in Python

    - by wich
    In Python, How can one subtract two non-unique, unordered lists? Say we have a = [0,1,2,1,0] and b = [0, 1, 1] I'd like to do something like c = a - b and have c be [2, 0] or [0, 2] order doesn't matter to me. This should throw an exception if a does not contain all elements in b. Note this is different from sets! I'm not interested in finding the difference of the sets of elements in a and b, I'm interested in the difference between the actual collections of elements in a and b. I can probably work this out with a for loop, looking up the first element of b in a and then removing the element from b and from a, etc. But this doesn't appeal to me, I'd like to do this with list comprehension in a nice and easy way. Is this possible?

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  • Can "tar" backup incrementally?

    - by Somebody still uses you MS-DOS
    I have my home folder with a few GB. Is it possible to run tar on it, create a home.tar.gz, and then for changed files, it creates home1.tar.gz only with modified files from previous tar (thus being an incremental backup)? I would like to check the resulting checksum files and export them as well like home.md5, home1.md5, etc. (I know this could be another process, but interesting as well).

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  • Running Spinrite from USB drive?

    - by Snackmoore
    Hi Everyone, I need to use spinrite on my notebook which has no cd-rom. Can one tell me how I could install and run spinrite from a USB thumbdrive? such that I could boot the notebook up with a thumbdrive and start spinrite. Are all USB thumbdrive capable of booting? I don't even know how to make them boot. Thank you very much in advance. Best Regards.

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  • Insert objects into a collection with LINQ based on a property of the existing objects in the collection

    - by DavidS
    Hi, I've got a collection of object which contains data as follows: FromTime Duration 2010-12-28 24.0000 2010-12-29 24.0000 2010-12-30 24.0000 2010-12-31 22.0000 2011-01-02 1.9167 2011-01-03 24.0000 2011-01-04 24.0000 2011-01-05 24.0000 2011-01-06 24.0000 2011-01-07 22.0000 2011-01-09 1.9167 2011-01-10 24.0000 In the "FromTime" column, there are data "gaps" i.e. 2011-01-01 and 2011-01-08 are "missing". So what I'd like to do is to loop through a range of dates (in this instance 2010-12-28 to 2011-01-10) and "fill in" the "missing" data with a duration of 0. As I've just started with LINQ, I feel that it should be "fairly" easy but I can't quite get it right. I'm reading the book "LINQ in Action" but feel that I'm still quite a way off before I can resolve this particular issue. So any help would be much appreciated. David

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  • SSH to drive letter in Windows 2003

    - by JohnnyG76
    I have a Windows 2003 server running a SSH server (WRQ Reflection), how would I ssh to it and specify a specific drive letter? (like the D: drive) ex: from another workstation: ssh [email protected] d: When I do that it fails and I get this error: "exec request failed on channel 0" If I simply SSH to that same windowsbox without trying to specify a drive letter I get a Windows (CMD.EXE) command prompt shell on the C: drive. I can then run any windows command. Thanks

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  • What's wrong with this iptable rule?

    - by warl0ck
    I run dnsmasq locally as a cache server, in the old days, I allow all INPUT packets from lo+, and set policy of INPUT to DROP: -A INPUT -i lo+ -j ACCEPT Now I decide to put this on the raw table to speed up rules matching, -A PREROUTING -i lo+ -j ACCEPT But that doesn't work as expected. Why? Since the packets get processed by the raw table first, then nat, then filter, why isn't that rule work the same as the old one?

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  • How to Iterate a Resharper Template ?.

    - by sree
    I have a small Resharper Template I have written for Null check of a function Parameter (C#). Check.IsNotNull($param$, "$param$"); - Suggest Parameter - #1 I can now null check the function paramters one by one. But I want to be able to null check all the paramters at once through a template. Is it Possible in Resharper?. Is there someting like a "$Foreach" using which I can loop through parameter variables and write the code to check them one by one ?. (without writing out the foreach into the code) I see that the "Alt + Ins" does something similar. (Taking all Properties on the class and making them as parameters of a constructor). So hoping that there's a way out.

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  • What is the difference between running a Windows service vs. running through shell?

    - by Zack
    I am trying to troubleshoot an issue on a Windows 2008 server where running attempting to connect to a "Timberline Data Source" ODBC driver crashes if the call is in a "service" context, but succeeds if the call is initiated manually in a Remote Desktop session. I have set the service to run as my user. I'm wondering if, all else being equal (user, machine, etc), are there any fundamental security/environment differences between running a process as a service vs manually? --- Implementation Details --- In case it is helpful for anyone, I had a system that started as an attempt to connect to a Timberline Database using ODBC and a Python CGI script called via IIS 7. The script itself works fine, however, as soon as I attempt to perform the ODBC connect function, the script crashes without throwing an exception. The script was able to connect fine when executed via command line. The same thing happened when using a C#/.net service, attempting to run via Apache, Windows Scheduler or even a 3rd party scheduling tool. With the last option (the 3rd party scheduling tool, pycron) I set the service up log in as my user and had the same issue (I confirmed via Task Manager that the process running user was, in fact, me). It just doesn't make sense to me why a service, which should be running as my user, appears to still be operating in a different security context or environment. Also, if it's important, the Timberline database is referenced by computer name on the network ("\\timberline-server\Timberline Office\Accounts\AT" or something to that effect) I also realized that, as Joel pointed out, the server DOES have a mapped drive ("Y:" which is mapped to "\\timberline-server\Timberline Office") The DSN is set up at the "System DSN" level which, according to the ODBC Administration Tool, means that the DSN is available to users and services Since I'm not allowed to answer this question yet, I'll post the solution that I arrived on: As Joel Coel mentioned, there actually was a mapped drive scenario. I didn't realize this because the DSN specified a path using UNC. However, it seems as though the actual Timberline Driver referred to a mapped drive. Since services don't start with the mapped drive, I was forced to add the drive mapping code into my service. Since it was written in python, I used code from a Stackoverflow answer that was able to map the drive on the fly.

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  • Ubuntu 9.10 Nvidia GTX 260 x64 installation

    - by klapi
    I think I tried everything I could but I still can't get my Nvidia GTX 260 to run on the newest ubuntu 9.10 x64. Update: I was able to stop the gdm with sudo service gdm stop However, after downloading the latest driver from nvdia - I am told that my video card is not supported.

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  • Tips for maximizing Nginx requests/sec?

    - by linkedlinked
    I'm building an analytics package, and project requirements state that I need to support 1 billion hits per day. Yep, "billion". In other words, no less than 12,000 hits per second sustained, and preferably some room to burst. I know I'll need multiple servers for this, but I'm trying to get maximum performance out of each node before "throwing more hardware at it". Right now, I have the hits-tracking portion completed, and well optimized. I pretty much just save the requests straight into Redis (for later processing with Hadoop). The application is Python/Django with a gunicorn for the gateway. My 2GB Ubuntu 10.04 Rackspace server (not a production machine) can serve about 1200 static files per second (benchmarked using Apache AB against a single static asset). To compare, if I swap out the static file link with my tracking link, I still get about 600 requests per second -- I think this means my tracker is well optimized, because it's only a factor of 2 slower than serving static assets. However, when I benchmark with millions of hits, I notice a few things -- No disk usage -- this is expected, because I've turned off all Nginx logs, and my custom code doesn't do anything but save the request details into Redis. Non-constant memory usage -- Presumably due to Redis' memory managing, my memory usage will gradually climb up and then drop back down, but it's never once been my bottleneck. System load hovers around 2-4, the system is still responsive during even my heaviest benchmarks, and I can still manually view http://mysite.com/tracking/pixel with little visible delay while my (other) server performs 600 requests per second. If I run a short test, say 50,000 hits (takes about 2m), I get a steady, reliable 600 requests per second. If I run a longer test (tried up to 3.5m so far), my r/s degrades to about 250. My questions -- a. Does it look like I'm maxing out this server yet? Is 1,200/s static files nginx performance comparable to what others have experienced? b. Are there common nginx tunings for such high-volume applications? I have worker threads set to 64, and gunicorn worker threads set to 8, but tweaking these values doesn't seem to help or harm me much. c. Are there any linux-level settings that could be limiting my incoming connections? d. What could cause my performance to degrade to 250r/s on long-running tests? Again, the memory is not maxing out during these tests, and HDD use is nil. Thanks in advance, all :)

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  • Process.WaitForExit not triggering with __debugbreak

    - by Cypher2100
    I'm trying to write a program to test student code against a good implementation. I have a C++ console app that will run one test at a time determined by the command line args and a C# .net forms app that calls the c++ app once for each test. The goal is to be able to detect not just pass/fail for each test, but also "infinite" (5secs) loop and exceptions (their code dying for whatever reason). The problem is that not all errors kill the C++ app. If they corrupt the heap the system calls __debugbreak which pops up a window saying Debug Error! HEAP CORRUPTION DETECTED... My C# app is using Process.WaitForExit(5000) to wait, but this error doesn't count as an exit, so I see a timeout. So my question is, how can I either get the C# app to detect that this is an error OR how can I get the C++ app to die when this error occurs rather than giving a dialog box and asking if I want to debug?

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  • How do you get autofs and updatedb to work together?

    - by Veek.M
    /etc/my.misc sda1 -fstype=ntfs,user,exec :/dev/sda1 sda3 -fstype=ntfs,user,exec :/dev/sda3 sda4 -fstype=ntfs,user,exec :/dev/sda4 /etc/auto.master /my /etc/my.misc --ghost When I run locate .pdf, I get nothing because though the mount points (sda1, sda2, ..) are created in /my - there's nothing in them till I access them. Unfortunately this is not good enough for updatedb and it purges its cache of /my/sdaX files. How do I prevent/solve this problem?

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  • Getting object coordinates from camera

    - by user566757
    I've implemented a camera in Java using a position vector and three direction vectors so I can use gluLookAt(); moving around in `ghost mode' works fine enough, but I want to add collision detection. I can't seem to figure out how to transform my position vector to coordinates in which OpenGL draws my objects. A rough sketch of my drawing loop is this: glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLoadIdentity(); camera.setView(); drawer.drawTheScene(); I'm at a loss of how to proceed; looking at the ModelView matrix between calls and my position vector, I haven't found any kind of correlation.

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  • USB Ports not working on new ASUS Z87 PRO motherboard

    - by Peter Coulton
    3 of the six USB ports on the back on my new ASUS Z87 PRO motherboard are not functioning properly. They do seem to deliver power, just don't seem to function for data (devices attached in these ports are detected by windows, or usable in UEFI) I think I'm right in saying that the top 4 ports (3 of which aren't working) run off an additional USB controller (not from the Z87 chipset) if that makes any difference. I'm pretty sure that I'll just have to return it, but any advice on diagnosing the problem would be welcome.

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  • converting apache rewrite rules to nginx

    - by Muktadir Miah
    Hello everyone, I am trying to create a UDID protected Cydia Repo but I cannot use it on nginx because of nginx does not use the .htaccess file. The file certain rewrite rules to make it run. Here are a copy of the Repo: https://github.com/ic0nic/UDID-repo Below is a copy of the .htaccess file. RewriteEngine On RewriteBase /your_repo_folder/ RewriteRule ^(Release)$ release.php RewriteRule ^(Packages.*)$ package.php

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  • C++: Why does space always terminate a string when read?

    - by Nullw0rm
    Using type std::string to accept a sentence, for practise (I haven't worked with strings in C++ much) I'm checking if a character is a vowel or not. I got this: for(i = 0; i <= analyse.length(); i++) { if(analyse[i] == 'a' || analyse[i] == 'e' [..etc..]) { ...vowels++; } else { ... ...consenents++; } This works fine if the string is all one word, but the second I add a space (IE: aeio aatest) it will only count the first block and count the space as a consenent, and quit reading the sentence (exiting the for loop or something). Does a space count as no character == null? Or some oddity with std::string?, It would be helpful to know why that is happening!

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  • Stack Overflow Accessing Large Vector

    - by cam
    I'm getting a stack overflow on the first iteration of this for loop for (int q = 0; q < SIZEN; q++) { cout<<nList[q]<<" "; } nList is a vector of type int with 376 items. The size of nList depends on a constant defined in the program. The program works for every value up to 376, then after 376 it stops working. Any thoughts?

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  • Will unused deconstructors be optimized out?

    - by Brendan Long
    Assuming MyClass uses the default deconstructor (or no deconstructor), and this code: MyClass buffer[] = new MyClass[i]; // Construct N objects using placement new for(size_t i = 0; i < N; i++){ ~buffer[i]; } delete[] buffer; Is there any optimizer that would be able to remove this loop? Also, is there any way for my code to detect if MyClass is using an empty/default constructor?

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