[opencms-dev] Lucene / ulimit / too many open files

[Roman Uhlig Maxity.de]

Andrea, this is very dangerous. With this ulimit, it would be easy to DDOS your server.

Roman

-----Ursprüngliche Nachricht-----
Von: opencms-dev-bounces at opencms.org [mailto:opencms-dev-bounces at opencms.org] Im Auftrag von Andrea Puddu
Gesendet: Mittwoch, 23. September 2009 15:04
An: The OpenCms mailing list
Betreff: Re: [opencms-dev] Lucene / ulimit / too many open files

We experienced the same troubles!!!

Our solution was very similar.. increase ulimit up to the max value 
(something like 65000)...

Ciao,
Andrea



Roman Uhlig ha scritto:
> We are currently facing some problems with OpenCms search indices and the
> number of open files. We believe it's since the 7.5.0 update, but this may
> be deceiving.
>
> After a server is running for some days or a few weeks, it finally reaches
> the ulimit because of too many open .cfs files, which are Lucene search
> indices I think (I don't have any experience in Lucene at all). We doubled
> the ulimit, but this only extended the time until the ulimit is reached.
> Finally there will be too many open files because of a huge amount of open
> .cfs files.
>
> We are currently running the following config on our OpenCms servers:
>
> - OpenCms 7.5.0
> - PostgreSQL 8.4.1 (happened with 8.3.7 as well)
> - Sun JDK 1.6.0.16
> - Tomcat 6.0.20
> - GenToo Linux 64Bit (2.6.30-gentoo-r5)
>
> Any suggestions or hints would be very appreciated.
>
> Thanks in advance,
> Roman
>   

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