Questions tagged [ulimit]

"ulimit" is a shell command for setting limits on what resources a process can use

95 questions
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How do I increase the open files limit for a non-root user?

This is happening on Ubuntu Release 12.04 (precise) 64-bit Kernel Linux 3.2.0-25-virtual I'm trying to increase the number of open files allowed for a user. This is for my eclipse java application where the current limit of 1024 is not enough.…
iCode
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How to increase max open files limit on Ubuntu 18.04?

I've run ulimit -n 65536 , added the following lines to /etc/security/limits.conf : * soft nofile 65536 * hard nofile 65536 alix soft nofile 65536 alix hard nofile 65536 root soft nofile 65536 root hard nofile 65536 And added session required…
Alix Axel
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Too many open files

when i open Lutris and then LOL client , this happening. And game never work good. I tried many things but never can change the open file limit. How can fix this ? Waiting on children Waiting on children eventfd: Too many open files eventfd: Too…
FullMetaLJacket
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core file size with ulimit

My question is probably not related to Ubuntu in particular, but since my desktop running this OS, I came to this forum. I am trying to change the core file size using ulimit -c command as follows: $ ulimit -a core file size (blocks, -c) 0 data seg…
maximb
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Why it cannot get past 4096 max open files for non-root user?

I can't seem to increase the nofile limit for non-root users on Ubuntu 14.04, despite following every StackExchange answer related to this problem. So far I have: $ cat /etc/security/limits.d/custom.conf @www-data hard nofile 50000 @www-data soft…
Caffeine Coma
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Permanently raising nofile limits in Ubuntu 14.04 LTS

I cannot seem to figure out what exactly is needed to allow the maximum number of file descriptors to be raised permanently for all users. /etc/security/limits.conf : root hard nofile 1500000 root soft nofile 1000000 root hard nproc 15000 root soft…
w3rthl3ss
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How to set a memory limit for a specific process?

I tried to execute mpiexec -16 ... on a 384 GB RAM server, but it induced OOM Killer and was aborted. How can I set a memory limit for mpiexec execution? I know ulimit , but it might affect other processes. Thank you.
Benben
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How to remove limit on core dump file size

I would like to increase the maximum size limit for core dump files as a regular user. Using bash , I can set it like this: $ ulimit -c 100 which works well the first time I set it. However, the next time I use this command, I can only set this…
Peter Bašista
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2 answers

Downside of unlimited core size? Where do core files go?

I have an upstart job that occasionally crashes with a segmentation fault, and I have a few questions about core dumps. First, should I add a stanza: limit core unlimited unlimited Is there a downside to allowing unlimited core sizes? Would a finite…
brooks94
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3 answers

Is the kilobyte used by time and ulimit commands either 1000 (SI) or 1024 (old school) bytes?

From man time : M Maximum resident set size of the process during its lifetime, in Kilobytes. From ulimit -a : max memory size (kbytes, -m) unlimited But a "kilobyte" may mean either 1000 or 1024 bytes . I guess here it is a round 1024, but I want…
abukaj
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Permanently set process limit

How do you permanently set process limit per user ( ulimit -u ) in Ubuntu?
redman
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Fork bomb protection not working : Amount of processes not limited

I just came to realize that my system is not limiting the amount of processes per user properly thus not preventing a user from doing a fork-bomb and crashing the entire system: user@thebe:~$ cat /etc/security/limits.conf | grep user user hard nproc…
d_inevitable
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Ulimit and make_sock errors

I'm trying to configure Redmine for Ubuntu 11.10, using this method Redmine for 11.10 but ran into some crazy snag somewhere with apache. Upon issuing service apache2 restart I get the following errors. * Restarting web server apache2 ulimit: 88:…
ehime
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nofile ulimit -n on Ubuntu 14.04 LTS

➜ sudo sysctl -a|grep file fs.file-max = 2037581 fs.file-nr = 2784 0 2037581 ➜ ~ cat /proc/sys/fs/file-max 2037581 ➜ ~ cat /proc/sys/fs/file-nr 2720 0 2037581 /etc/security/limits.conf * hard nofile 2037581 * soft nofile 2037581 root hard nofile…
sharewind
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What is a safe ulimit ceiling?

This is the output of ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 16382 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m)…
theTuxRacer
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