[rt-users] RT Apache memory leak. any examples of MPM settings?

[Kenneth Marshall]

It is not a memory leak, memory does not get returned to the
system -- ever. So a large query can bloat the memory usage
and it will not shrink. We use cron to do a "graceful" apache
restart once a day. No impact to users and it handles the
memory usage growth over time.

Regards,
Ken

On Fri, Feb 19, 2010 at 10:31:53AM -0800, Michael Neuschafer wrote:
> My request tracker apache has been eating up memory.  I think there is a
> memory leak.  Below is my prefork MPM and Worker MPM what setting do you
> recommend?
> 
>  
> 
>  
> 
> # prefork MPM
> 
> # StartServers: number of server processes to start
> 
> # MinSpareServers: minimum number of server processes which are kept
> spare
> 
> # MaxSpareServers: maximum number of server processes which are kept
> spare
> 
> # MaxClients: maximum number of server processes allowed to start
> 
> # MaxRequestsPerChild: maximum number of requests a server process
> serves
> 
> <IfModule mpm_prefork_module>
> 
>     StartServers          2
> 
>     MinSpareServers       2
> 
>     MaxSpareServers       3
> 
>     MaxClients           50
> 
>     MaxRequestsPerChild  1000
> 
> </IfModule>
> 
>  
> 
> # worker MPM
> 
> # StartServers: initial number of server processes to start
> 
> # MaxClients: maximum number of simultaneous client connections
> 
> # MinSpareThreads: minimum number of worker threads which are kept spare
> 
> # MaxSpareThreads: maximum number of worker threads which are kept spare
> 
> # ThreadsPerChild: constant number of worker threads in each server
> process
> 
> # MaxRequestsPerChild: maximum number of requests a server process
> serves
> 
> <IfModule mpm_worker_module>
> 
> StartServers 2
> 
>     ThreadLimit          64
> 
> </IfModule>
> 
>  
> 
> # event MPM
> 
> # StartServers: initial number of server processes to start
> 
> # MaxClients: maximum number of simultaneous client connections
> 
> # MinSpareThreads: minimum number of worker threads which are kept spare
> 
> # MaxSpareThreads: maximum number of worker threads which are kept spare
> 
> # ThreadsPerChild: constant number of worker threads in each server
> process
> 
> # MaxRequestsPerChild: maximum number of requests a server process
> serves
> 
> <IfModule mpm_event_module>
> 
>     StartServers          2
> 
>     MaxClients           50
> 
>     MinSpareThreads      25
> 
>     MaxSpareThreads     100 
> 
>     ThreadLimit          64
> 
>     ThreadsPerChild      25
> 
>     MaxRequestsPerChild  1500
> 
> </IfModule>
> 
>  
> 
> Michael Neuschafer
> 
> PC Support Specialist
> 
> National Stores Inc.
> 
> (310) 436 - 2150
> 
>  
> 

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