Setting open file limits

Here is a post on my notes for setting open file limits

 

The error message you get is

“Too many open files”,
And the way to take a look current limit is
ulimit -n (this will give you current max limit)
There is a “soft limit” and a “hard limit”,
on Lanka the soft limit is 1024, that is
ulimit -Sn
1024
the “hard limit” is 4096, you can see the hard limit with the command
ulimit -Hn
4096
To set the soft limit is easy, but it has to be a number between 0 — hard limit, just do
ulimit -n 4096,
this would set the soft limit to 4096, now you can run with more files
It is tricky to set the hard limit. Googling around shows that you can potentially do this by
/etc/security/limits.conf

 

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