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John
Asked: 2013-05-19 04:00:22 +0800 CST

Increase file ulimit for the asterisk daemon

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How do i increase the file limit for the asterisk daemon on my ubuntu computer? When I login as root and use the ulimit, it says unlimited already. I can't login as asterisk because that user doesn't have shell access, it's just a daemon.

I can see in /proc/<asterisk proc id>/limits the current Max open files is 1024. I want to double that.

I even went into /etc/security/limit.conf and added

asterisk soft nofile 2048
asterisk hard nofile 2048
@asterisk soft nofile 2048
@asterisk hard nofile 2048

THen I reboot server. Still, the max open files is 1024.

What else can I do?

linux

6 Answers

  1. Best Answer

    You could always edit the /etc/init.d/asterisk file and prepend ulimit -n 2048 to the top.

    This is the same process that MySQL, Varnish and a few others use.

    • 5

  2. For Asterisk running under systemd (e.g. on Debian 9), you need to create a systemd override file:

    mkdir /etc/systemd/system/asterisk.service.d/

    Create /etc/systemd/system/asterisk.service.d/override.conf with the following contents:

    [Service]
LimitNOFILE=100000

    Reload the unit:

    systemctl daemon-reload

    Restart Asterisk:

    systemctl restart astertisk

    Check the limit:

    cat /proc/<your asterisk PID>/limits | grep '^Max open files'
    • 3

  3. I had this exact issue for anyone stumbling across this in the future (is it chrome?)

    The system that I was having the issue on was Debian rather than Ubuntu, but hey, close enough.

    I had to use the following in '/etc/security/limits.conf' to get it working, as specifying the user & group didn't work.

    *               soft    nofile          10240
*               hard    nofile          10240

    Logging in and out again applies this change.

    • 2

  4. In Asterisk 11 (I've not checked others) this is set with the maxfiles directive in the [general] section of asterisk.conf. None of the other answers worked for me on Debian.

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  5. It is better to edit the configurations in /usr/sbin/safe_asterisk instead on editing init.d script.

    you can set many parameters (PRIORITY, SYSMAXFILES, MAXFILES ...). Uncomment SYSMAXFILES and MAXFILES; and increase their values.

    • 1

  6. Here is an easy way to increase ulimit value in asterisk.

    Go to this file. /etc/asterisk/asterisk.conf

    [options]
internal_timing = no
maxfiles = 999999

    paste above line is asterisk.conf file then execute below commands.

    asterisk -rx "core restart now"
asterisk -rx "ulimit descriptors"

    Output

    Number of file descriptors (descriptors) is limited to 999999.
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