Try with this
https://wiki.duraspace.org/display/DSDOC3x/Performance+Tuning+DSpace#PerformanceTuningDSpace-GiveTomcatMoreJavaHeapMemory
Javier Távara
2013/9/9 Jean Paul <[email protected]>
> Hello
>
> We're getting this error periodically:
>
> 2013-09-09 16:57:02,790 ERROR
> org.dspace.app.webui.servlet.DisplayStatisticsServlet @ Error occured while
> creating statistics for dso with ID: 596 and type 2 and handle: 1343/552
> org.apache.solr.client.solrj.SolrServerException: Error executing query
> at
> org.apache.solr.client.solrj.request.QueryRequest.process(QueryRequest.java:95)
> at
> org.apache.solr.client.solrj.SolrServer.query(SolrServer.java:118)
> at org.dspace.statistics.SolrLogger.query(SolrLogger.java:893)
> ...
> Caused by: org.apache.solr.common.SolrException: Java heap space
> java.lang.OutOfMemoryError: Java heap space
>
> Java heap space java.lang.OutOfMemoryError: Java heap space
>
> I'm wondering if anyone has seen similar error and can provide some help
> with it.
> Thanks in advance.
>
> Jean-P
>
>
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