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

[Andrea Puddu]

Hi Roman,
we use OpenCms as a producer of static pages. So we keep it on a private 
network, with no access from public internet.
So I guess there's no DoS risks... thanks anyway.

BTW another problem regarding Lucene and indexing tasks is related to 
Timeout while indexing after the publish phase.

"Timeout while indexing file /sites/mysite/canali/donna/index.html, 
abandoning thread"

It occurs randomly on different resources but not so often... have 
experienced anything similar? Any suggestion/idea to share?

Thanks,
Andrea

---------------------------
Andrea Puddu
docpuddu at tiscali dot it
http://www.linkedin.com/in/andreapuddu
-------------------------------------------





Roman Uhlig Maxity.de ha scritto:
>  
> 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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