[Freeipa-users] 389-ds memory usage
Richard Megginson
rmeggins at redhat.com
Tue Jun 5 15:55:35 UTC 2012
----- Original Message -----
> On Mon, April 23, 2012 20:38, Rich Megginson wrote:
>
> > Ok. The current theory is that the memory growth is caused by the
> > churn
> > of entries being added to and removed from the entry cache. It's
> > not yet known why this growth is
> > seen. It could be just that the memory is getting fragmented, or
> > there is a real yet undetected
> > memory leak. That's why entry cache sizing and monitoring is very
> > important, to see
> > if you are churning entries in/out of the cache, and if that is
> > correlated with the memory growth.
> >
>
>
> This memory issue is still occuring in the production environment
> after increasing the max entry
> cache size to 256MB, and it is impacting performance. See below for
> an output of the memory usage
> and the current size and hitratio of the cache on the 3 production
> IPA servers.
>
> How do you suggest moving forward to troubleshoot this issue?
Are you seeing https://fedorahosted.org/389/ticket/386 ?
>
>
>
>
>
> Mem: 8050880k total, 7893612k used, 157268k free, 1924k
> buffers
> Swap: 14811120k total, 3738640k used, 11072480k free, 38032k
> cached
>
> dn: cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config
> entrycachehitratio: 97
> maxentrycachesize: 268435456
> currententrycachesize: 14047758
> currententrycachecount: 3062
>
>
>
> Mem: 8059224k total, 7907904k used, 151320k free, 9060k
> buffers
> Swap: 14811120k total, 2507796k used, 12303324k free, 58104k
> cached
>
> dn: cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config
> entrycachehitratio: 99
> maxentrycachesize: 268435456
> currententrycachesize: 13963883
> currententrycachecount: 3062
>
>
>
> Mem: 8062240k total, 7932268k used, 129972k free, 864k
> buffers
> Swap: 2097144k total, 2097144k used, 0k free, 16788k
> cached
>
> dn: cn=monitor,cn=userRoot,cn=ldbm database,cn=plugins,cn=config
> entrycachehitratio: 99
> maxentrycachesize: 268435456
> currententrycachesize: 13809438
> currententrycachecount: 3066
>
>
> Rgds,
> Siggi
>
>
>
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