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https://issues.apache.org/jira/browse/JCR-931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496962
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Ian Boston commented on JCR-931:
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thanks for the clarification, JCR-929 was also seeing the same error as well as
the lock. Seperate issues, I think.
> cluster synchronization NPE
> ---------------------------
>
> Key: JCR-931
> URL: https://issues.apache.org/jira/browse/JCR-931
> Project: Jackrabbit
> Issue Type: Bug
> Affects Versions: 1.3
> Reporter: Xiaohua Lu
>
> we have a 4 machines setup and encountered the following NPE in one of the
> nodes. After restarting tomcat, the problem seems to go away. But it would be
> nice to find out why.
> java.lang.NullPointerException
> at
> org.apache.jackrabbit.core.query.lucene.NodeIndexer.createDoc(NodeInd
> exer.java:146)
> at
> org.apache.jackrabbit.core.query.lucene.SearchIndex.createDocument(Se
> archIndex.java:566)
> at
> org.apache.jackrabbit.core.query.lucene.SearchIndex$2.next(SearchInde
> x.java:368)
> at
> org.apache.jackrabbit.core.query.lucene.MultiIndex.update(MultiIndex.
> java:354)
> at
> org.apache.jackrabbit.core.query.lucene.SearchIndex.updateNodes(Searc
> hIndex.java:356)
> at
> org.apache.jackrabbit.core.SearchManager.onEvent(SearchManager.java:4
> 23)
> at
> org.apache.jackrabbit.core.observation.EventConsumer.consumeEvents(Ev
> entConsumer.java:231)
> at
> org.apache.jackrabbit.core.observation.ObservationDispatcher.dispatch
> Events(ObservationDispatcher.java:201)
> at
> org.apache.jackrabbit.core.observation.EventStateCollection.dispatch(
> EventStateCollection.java:424)
> at
> org.apache.jackrabbit.core.state.SharedItemStateManager.externalUpdat
> e(SharedItemStateManager.java:882)
> at
> org.apache.jackrabbit.core.RepositoryImpl$WorkspaceInfo.externalUpdat
> e(RepositoryImpl.java:1957)
> at
> org.apache.jackrabbit.core.cluster.ClusterNode.end(ClusterNode.java:8
> 34)
> at
> org.apache.jackrabbit.core.cluster.ClusterNode.consume(ClusterNode.ja
> va:929)
> at
> org.apache.jackrabbit.core.journal.AbstractJournal.doSync(AbstractJou
> rnal.java:191)
> at
> org.apache.jackrabbit.core.journal.AbstractJournal.sync(AbstractJourn
> al.java:166)
> at
> org.apache.jackrabbit.core.cluster.ClusterNode.sync(ClusterNode.java:
> 283)
> at
> org.apache.jackrabbit.core.cluster.ClusterNode.start(ClusterNode.java
> :229)
> at
> org.apache.jackrabbit.core.RepositoryImpl.<init>(RepositoryImpl.java:
> 308)
> at
> org.apache.jackrabbit.core.RepositoryImpl.create(RepositoryImpl.java:
> 584)
> at
> org.apache.jackrabbit.core.jndi.BindableRepository.createRepository(B
> indableRepository.java:174)
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