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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?

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4 Answers 4

up vote 2 down vote accepted

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.

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superb!!! it wored – John May 18 '13 at 12:28

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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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.

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Directly edit the executable? Then the changes will be lost the next time the executable gets updated. Configuration changes should go in config files. – Andrew Schulman Nov 21 '14 at 16:22
That's no more of an executable than is /etc/rc.d/init.d/asterisk which was accepted, so, have an upvote. I find this method to be rather reliable. – dougBTV Aug 20 at 19:13

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.

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What does logging in and out have to do with a specific running daemon? Do you mean "restart the service", or...? – Tom Wadley Sep 19 '14 at 10:05

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