I seem to be having some issues setting the ulimit value for the number of open files on Ubuntu 11.10 (it's an Amazon EC2 instance)
I followed the proccess outlined on this site, by editing /etc/security/limits.conf and adding
and editing /etc/pam.d/common-session and placed at the end of the file
When I rebooted the instance, all users still has the default 1024 for open files. I can manually change it but thats only for that terminal session.
Has anyone come across this before?
Thanks!
Primal
---------- Post updated 02-15-12 at 11:19 AM ---------- Previous update was 02-14-12 at 09:17 PM ----------
Figured it out, I cant just specify a hard limit, I need to set the soft limit as well (that's the value that appears in ulimit -a)
These 2 Users Gave Thanks to primal For This Post:
All
I am trying to do
ulimit -d unlimited
and I get "sh: ulimit: The specified value exceeds the user's allowable limit."
Can someone please help me understand, how to change this!
Thanks (1 Reply)
Hi,
system aix 4.3
when I execute umilit i get result "unlimited".
why cant i ftp or extract from media filesize over 2gig....
e.g FS /test/testy is large file enabled.
any help will be greatly appreciated.
thnx (3 Replies)
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Hi,
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ulimit -n 5000
My questions are:
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I found when i run this code
#! /bin/ksh
error_log="/tmp/log3.txt"
while
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"Finished")
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hi
what is the difference between file and data? if file is unlimited, does that mean we can have a file as big as we like?
thanks.
file(blocks) unlimited
data(kbytes) 1048576 (6 Replies)
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Discussion started by: gazzac
7 Replies
LEARN ABOUT PLAN9
prlimit
PRLIMIT(1) User Commands PRLIMIT(1)NAME
prlimit - get and set process resource limits
SYNOPSIS
prlimit [options] [--resource[=limits] [--pid PID]
prlimit [options] [--resource[=limits] command [argument...]
DESCRIPTION
Given a process ID and one or more resources, prlimit tries to retrieve and/or modify the limits.
When command is given, prlimit will run this command with the given arguments.
The limits parameter is composed of a soft and a hard value, separated by a colon (:), in order to modify the existing values. If no lim-
its are given, prlimit will display the current values. If one of the values is not given, then the existing one will be used. To specify
the unlimited or infinity limit (RLIM_INFINITY), the -1 or 'unlimited' string can be passed.
Because of the nature of limits, the soft limit must be lower or equal to the high limit (also called the ceiling). To see all available
resource limits, refer to the RESOURCE OPTIONS section.
soft:hard Specify both limits.
soft: Specify only the soft limit.
:hard Specify only the hard limit.
value Specify both limits to the same value.
GENERAL OPTIONS -h, --help
Display help text and exit.
--noheadings
Do not print a header line.
-o, --output list
Define the output columns to use. If no output arrangement is specified, then a default set is used. Use --help to get a list of
all supported columns.
-p, --pid
Specify the process id; if none is given, the running process will be used.
--raw Use the raw output format.
--verbose
Verbose mode.
-V, --version
Display version information and exit.
RESOURCE OPTIONS -c, --core[=limits]
Maximum size of a core file.
-d, --data[=limits]
Maximum data size.
-e, --nice[=limits]
Maximum nice priority allowed to raise.
-f, --fsize[=limits]
Maximum file size.
-i, --sigpending[=limits]
Maximum number of pending signals.
-l, --memlock[=limits]
Maximum locked-in-memory address space.
-m, --rss[=limits]
Maximum Resident Set Size (RSS).
-n, --nofile[=limits]
Maximum number of open files.
-q, --msgqueue[=limits]
Maximum number of bytes in POSIX message queues.
-r, --rtprio[=limits]
Maximum real-time priority.
-s, --stack[=limits]
Maximum size of the stack.
-t, --cpu[=limits]
CPU time, in seconds.
-u, --nproc[=limits]
Maximum number of processes.
-v, --as[=limits]
Address space limit.
-x, --locks[=limits]
Maximum number of file locks held.
-y, --rttime[=limits]
Timeout for real-time tasks.
EXAMPLES
prlimit --pid 13134
Display limit values for all current resources.
prlimit --pid 13134 --rss --nofile=1024:4095
Display the limits of the RSS, and set the soft and hard limits for the number of open files to 1024 and 4095, respectively.
prlimit --pid 13134 --nproc=512:
Modify only the soft limit for the number of processes.
prlimit --pid $$ --nproc=unlimited
Set for the current process both the soft and ceiling values for the number of processes to unlimited.
prlimit --cpu=10 sort -u hugefile
Set both the soft and hard CPU time limit to ten seconds and run 'sort'.
SEE ALSO ulimit(1), prlimit(2)NOTES
The prlimit system call is supported since Linux 2.6.36, older kernels will break this program.
AUTHORS
Davidlohr Bueso <dave@gnu.org> - In memory of Dennis M. Ritchie.
AVAILABILITY
The prlimit command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux July 2014 PRLIMIT(1)