Hi Christian
Perhaps somebody could do Java profiling on some big production systems to
see where the RAM goes.
See: http://wiki.lib.sun.ac.za/index.php/SUNScholar/Optimisations/Java
Cheers
hg
*Hilton Gibson*
Ubuntu Linux Systems Administrator
JS Gericke Library
Room 1025C
Stellenbosch University
Private Bag X5036
Stellenbosch
7599
South Africa
Tel: +27 21 808 4100 | Cell: +27 84 646 4758
On 1 April 2015 at 12:49, Christian Scheible <
christian.schei...@uni-konstanz.de> wrote:
> Thanks for your quick reply. We will increase the heap size.
> The question just is if there is a known issue causing more memory to be
> used?
> Because it was fine before the upgrade.
>
> Best Regards
> Christian
>
> Am 01.04.2015 um 11:39 schrieb Hilton Gibson:
>
> Perhaps this will help:
> http://wiki.lib.sun.ac.za/index.php/SUNScholar/Prepare_Ubuntu/S05/Ubuntu-14.04#Java_environment_settings_used_for_SUNScholar
>
> Cheers
>
> hg
>
> *Hilton Gibson*
> Ubuntu Linux Systems Administrator
> JS Gericke Library
> Room 1025C
> Stellenbosch University
> Private Bag X5036
> Stellenbosch
> 7599
> South Africa
>
> Tel: +27 21 808 4100 | Cell: +27 84 646 4758
>
> On 1 April 2015 at 11:01, Christian Scheible <
> christian.schei...@uni-konstanz.de> wrote:
>
>> Hi guys,
>>
>> We are running a DSpace 5.1 instance with about 25000 items on Ubuntu
>> Server 14.04 with OpenJDK 1.7.0_75. We set Xmx to 2g so the JVM has 2
>> Gigabyte of RAM.
>> If I inspect the memory usage I see that there are about 1900 MiB in
>> use. So most of the memory is used.
>> This leads to OutOfMemoryErrors during nightly cron jobs like optimizing
>> Solr and sometimes during the day.
>>
>> Has anyone seen a similar behaviour and solved the problem?
>>
>> Additional facts:
>> - Was working fine on 4.1
>> - After tomcat restart about 500 MiB memory of the JVM used
>> - 5 Minutes later 1074 MiB used
>> - 10 Minutes later 1702 Mib used
>> - About 14000 publication with full text (indexed every night with the
>> PDF Extractor)
>> - About 11000 publications without full text
>> - xmlui, oai and solr activated
>> - Ubuntu Server 14.04.2
>> - Tomcat 7.0.52.0
>> - OpenJDK headless 1.7.0_75
>> - Solr: authority core=empty, oai core=114,47 MB, search core=3.57 GB,
>> statistics core=387.82
>> - JVM 2GB
>> - System 4GB
>>
>> Any ideas? Help would be very appreciated
>>
>> --
>> Christian Scheible
>> Softwareentwickler / Abt. Content-basierte Dienste
>> Kommunikations-, Informations- und Medienzentrum (KIM)
>> Universität Konstanz
>> 78457 Konstanz
>> +49 (0)7531 / 88-2857
>> Raum B 703
>>
>>
>>
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>
>
>
>
> --
> Christian Scheible
> Softwareentwickler / Abt. Content-basierte Dienste
> Kommunikations-, Informations- und Medienzentrum (KIM)
> Universität Konstanz
> 78457 Konstanz+49 (0)7531 / 88-2857
> Raum B 703
>
>
------------------------------------------------------------------------------
Dive into the World of Parallel Programming The Go Parallel Website, sponsored
by Intel and developed in partnership with Slashdot Media, is your hub for all
things parallel software development, from weekly thought leadership blogs to
news, videos, case studies, tutorials and more. Take a look and join the
conversation now. http://goparallel.sourceforge.net/
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