Stack Overflow
Stack Overflow

Questions tagged [ulimit]

ulimit gets or sets the upper limit for resources available to the current shell.

356 questions
0
votes
2 answers

Enabling core files on CentOS 6

I am trying to enable core files on a machine running CentOS; however, nothing I have tried has produced core files…here is what I have done: Added the following two lines to /etc/security/limits.conf: * hard core unlimited * soft …
Kabb5
  • 3,760
  • 2
  • 33
  • 55
0
votes
2 answers

setting maximum number of files

I am trying to set the value of maximum number of open files in Ubuntu in etc/security/limits.conf, but i am not getting the same value reflected when i fire the command ulimit -a. I am adding the following values in the limits.conf : * …
Abhishek
  • 1
  • 1
  • 2
0
votes
2 answers

separate (binary) implementation of ulimit command?

Is there a source code for /usr/bin/ulimit? I need to see a user's complete list of rlimit's without him being in a shell. In this case, we have problems running memory-intensive programs from the web server (user wwwrun, usually having /bin/false…
Christian
  • 151
  • 3
0
votes
1 answer

Update failed of file descriptor limit

I have a server with Debian wheezy x64, I have problem with asterisk server "Try increasing max file descriptors with ulimit -n", I try to change the file descriptor limit as follows: # su - asterisk $ ulimit -Hn 4096 $ ulimit -Sn 1024 $ exit # vi…
developer
  • 4,744
  • 7
  • 40
  • 55
0
votes
1 answer

execute php file 100000 times at a time in centos

I need to run one php file 100000 times at a time. for that i used a exec command in a php file (runmyfile.php) and called that file using putty. The runmyfile.php file is have the following code. for($i=0;$i<100000; $i++){ exec('php -f…
user3378018
  • 21
  • 3
0
votes
2 answers

How to create random memory allocation failure?

I recently discovered PageHeap, a Windows debugging tool. Its option /fault permits injecting memory allocation failure every once in a while. Like, I want 1 allocation to fail every 100, or 1000, you decide. Do we have something similar on linux?…
qdii
  • 12,505
  • 10
  • 59
  • 116
0
votes
1 answer

List of performance improvement features that we can implement in java

May be this is a well known question, But i didn't find the best reference for this ques... what is the formula to calculate and assign the default u-limit, verbose (for gc) and max heap memory value? If there is no specific formula, what is the…
Harry
  • 3,072
  • 6
  • 43
  • 100
0
votes
1 answer

How to limit allowed time for a script run as a sub process in ksh script

I try to limit the allowed of a sub process in a ksh script. I try using ulimit (hard or soft values) but the sub process always break the limit (if take longer than allowed time). # value for a…
NeronLeVelu
  • 9,908
  • 1
  • 23
  • 43
0
votes
0 answers

Too many files open tomcat timeout issue

Hello i am having a issue where i create connections to the as400 system using tomcat. Everytime we call the as400 system it creates a connection. Sometimes the system lags and we never get a response back and it just holds up so we never close that…
user1863457
  • 131
  • 2
  • 11
0
votes
2 answers

Set limit on coredumpsize using modules

I am trying to convert a csh script to a tcl script for use within the linux modules functionality. The csh script was originally used to set environment variables properly for a software package. Instead of asking an end-user to change his shell…
twinoza
  • 3
  • 1
  • 4
0
votes
0 answers

Java Heap allocation acting different

Cannot allocate heap on one of two identical systems with the same version of java. If I set the stack size limit (ulimit -s) higher on the failing system it then works. 'strace' shows that java is failing on the second system in mmap2(). I need to…
user25849
  • 101
0
votes
1 answer

How to set up core dumping on a mac?

I am writing code for an animation program and I have a problem. I need to set up core dumping. NetBeans is saying this: Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java…
I have too many problems
  • 1
  • 1
  • 3
0
votes
0 answers

Open hundred of TCP (Websocket) Connections on one Client

I want to figure out how many connections my Server can handle. Thats why I wrote a script which actually creates a lot of connections (websocket-connections). This works find until 200 Connections then it stops! I am guessing it has something to…
user1354743
  • 407
  • 3
  • 7
  • 20
0
votes
1 answer

sh via Ruby: Running ulimit and a program in the same line

I am trying to run some computational-intense program from Ruby via the following command: %x(heavy_program) However, I sometimes want to limit the running time of the program. So I tried doing %x(ulimit -St #{max_time} & heavy_program) But it…
Gadi A
  • 3,449
  • 8
  • 36
  • 54
0
votes
1 answer

How to set ulimit to unlimited in perl?

I want all child processes of my perl script to generate core files in case of unexpected failures. So how can I set ulimit to unlimited inside perl?
Mihran Hovsepyan
  • 10,810
  • 14
  • 61
  • 111
1 2 3
…
23
24