Hi Daniel, I don’t think the error below is related to the crash.
The SOLR error below is probably happening because you have upgraded your xwiki instance and haven’t removed/cleared the SOLR index. We mentioned this in the release notes since we changed the SOLR index format recently. See http://www.xwiki.org/xwiki/bin/view/ReleaseNotes/ReleaseNotesXWiki53#HSolrSearchIndex for example. On the crash aspect you should check the memory usage when it crashes (you can take a heap dump on OOM for example). Thanks -Vincent On 28 Feb 2014 at 13:38:46, Daniel Thayer (d.s.tha...@swansea.ac.uk) wrote: Hi all, I am having a problem with XWiki that is driving me crazy. It periodically crashes--interval between crashes from a few days to a few weeks. There are no errors in the log when it happens. I am running XWiki enterprise 5.4.2 on Ubuntu, using Tomcat7, Postgresql, and LDAP authentication. I am getting errors like the following every hour in the log. I don't know if this is related or not: 2014-02-23 07:00:00,198 [XWiki Solr index thread] ERROR o.a.s.c.SolrCore - org.apache.solr.common.SolrException: ERROR: [doc=xwiki:Scheduler.WatchListHourlyNotifier_] multiple values encountered for non multiValued field class: [XWiki.SchedulerJobClass, XWiki.WatchListJobClass, XWiki.XWikiRights] at org.apache.solr.update.DocumentBuilder.toDocument(DocumentBuilder.java:243) at org.apache.solr.update.AddUpdateCommand.getLuceneDocument(AddUpdateCommand.java:73) at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:208) at org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:61) at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51) at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:432) at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:557) at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:325) at org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:230) at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:157) arch.solr.internal.AbstractSolrInstance.add(AbstractSolrInstance.java:60) at org.xwiki.search.solr.internal.DefaultSolrIndexer.processBatch(DefaultSolrIndexer.java:401) at org.xwiki.search.solr.internal.DefaultSolrIndexer.runInternal(DefaultSolrIndexer.java:374) at com.xpn.xwiki.util.AbstractXWikiRunnable.run(AbstractXWikiRunnable.java:131) at java.lang.Thread.run(Thread.java:724) 2014-02-23 07:00:00,199 [XWiki Solr index thread] ERROR o.x.s.s.i.DefaultSolrIndexer - Failed to process entry [INDEX xwiki:Scheduler.WatchListHourlyNotifier()] org.apache.solr.common.SolrException: ERROR: [doc=xwiki:Scheduler.WatchListHourlyNotifier_] multiple values encountered for non multiValued field class: [XWiki.SchedulerJobClass, XWiki.WatchListJobClass, XWiki.XWikiRights] at org.apache.solr.update.DocumentBuilder.toDocument(DocumentBuilder.java:243) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.AddUpdateCommand.getLuceneDocument(AddUpdaarch.solr.internal.AbstractSolrInstance.add(AbstractSolrInstance.java:60) at org.xwiki.search.solr.internal.DefaultSolrIndexer.processBatch(DefaultSolrIndexer.java:401) at org.xwiki.search.solr.internal.DefaultSolrIndexer.runInternal(DefaultSolrIndexer.java:374) at com.xpn.xwiki.util.AbstractXWikiRunnable.run(AbstractXWikiRunnable.java:131) at java.lang.Thread.run(Thread.java:724) teCommand.java:73) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.DirectUpdateHandler2.addDoc(DirectUpdateHandler2.java:208) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.processor.RunUpdateProcessor.processAdd(RunUpdateProcessorFactory.java:61) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.processor.UpdateRequestProcessor.processAdd(UpdateRequestProcessor.java:51) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.processor.DistributedUpdateProcessor.doLocalAdd(DistributedUpdateProcessor.java:432) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.processor.DistributedUpdateProcessor.versionAdd(DistributedUpdateProcessor.java:557) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.update.processor.DistributedUpdateProcessor.processAdd(DistributedUpdateProcessor.java:325) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.loader.XMLLoader.processUpdate(XMLLoader.java:230) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:157) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.loader.XMLLoader.load(XMLLoader.java:157) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.UpdateRequestHandler$1.load(UpdateRequestHandler.java:92) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:74) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.core.SolrCore.execute(SolrCore.java:1699) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.client.solrj.embedded.EmbeddedSolrServer.request(EmbeddedSolrServer.java:150) ~[solr-core-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:35] at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:117) ~[solr-solrj-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:44] at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:116) ~[solr-solrj-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:44] at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:102) ~[solr-solrj-4.0.0.jar:4.0.0 1394950 - rmuir - 2012-10-06 03:05:44] at org.xwiki.search.solr.internal.AbstractSolrInstance.add(AbstractSolrInstance.java:60) ~[xwiki-platform-search-solr-api-5.4.1.jar:na] at org.xwiki.search.solr.internal.DefaultSolrIndexer.processBatch(DefaultSolrIndexer.java:401) ~[xwiki-platform-search-solr-api-5.4.1.jar:na] at org.xwiki.search.solr.internal.DefaultSolrIndexer.runInternal(DefaultSolrIndexer.java:374) ~[xwiki-platform-search-solr-api-5.4.1.jar:na] at com.xpn.xwiki.util.AbstractXWikiRunnable.run(AbstractXWikiRunnable.java:131) ~[xwiki-platform-legacy-oldcore-5.4.1.jar:na] at java.lang.Thread.run(Thread.java:724) ~[na:1.7.0_25] Thanks very much for your help. Best regards, Dan Thayer _______________________________________________ users mailing list users@xwiki.org http://lists.xwiki.org/mailman/listinfo/users
