[389-users] dsktune is wrong

Rich Megginson rmeggins at redhat.com
Mon Dec 7 15:15:16 UTC 2009


Alan McKay wrote:
> Hey folks,
>
> Now that I want to install this in production, I have to ask about dsktune :-)
>
> Some of what it is telling me just seems plain incorrect.   Let's have a look
>
> WARNING: There are only 1024 file descriptors (hard limit) available, which
> limit the number of simultaneous connections.
>
> WARNING: There are only 1024 file descriptors (soft limit) available, which
> limit the number of simultaneous connections.
>
> Yet :
>
> [root at fileserver ~]# !cat
> cat /proc/sys/fs/file-max
> 306460
>   
What does
ulimit -n
say?
> I'm also wondering about whether or not this is really something to
> worry about :
> NOTICE : The net.ipv4.tcp_keepalive_time is set to 7200000 milliseconds
> (120 minutes).  This may cause temporary server congestion from lost
> client connections.
>
> I've got 20 or so users.   Is this really an issue for me?  Changing
> it is of course pretty trivial, but I'd rather not if I do not have
> to.
>   
It's probably not an issue if you have 20 users.  It might be an issue 
if you have several thousand users.
> thanks,
> -Alan
>
>
>   




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