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https://issues.apache.org/jira/browse/SOLR-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13874194#comment-13874194
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Joel Bernstein commented on SOLR-4260:
--------------------------------------
I installed the patch and ran it.
I'm getting some intermittent null pointers:
1578995 [qtp433857665-17] ERROR org.apache.solr.servlet.SolrDispatchFilter –
null:java.lang.NullPointerException
at
org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrServer.blockUntilFinished(ConcurrentUpdateSolrServer.java:401)
at
org.apache.solr.update.StreamingSolrServers.blockUntilFinished(StreamingSolrServers.java:99)
at
org.apache.solr.update.SolrCmdDistributor.finish(SolrCmdDistributor.java:69)
at
org.apache.solr.update.processor.DistributedUpdateProcessor.doFinish(DistributedUpdateProcessor.java:606)
at
org.apache.solr.update.processor.DistributedUpdateProcessor.finish(DistributedUpdateProcessor.java:1449)
at
org.apache.solr.update.processor.LogUpdateProcessor.finish(LogUpdateProcessorFactory.java:179)
at
org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:83)
at
org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1915)
at
org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:764)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:418)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:203)
at
org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
> Inconsistent numDocs between leader and replica
> -----------------------------------------------
>
> Key: SOLR-4260
> URL: https://issues.apache.org/jira/browse/SOLR-4260
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Environment: 5.0.0.2013.01.04.15.31.51
> Reporter: Markus Jelsma
> Assignee: Mark Miller
> Priority: Critical
> Fix For: 5.0, 4.7
>
> Attachments: 192.168.20.102-replica1.png,
> 192.168.20.104-replica2.png, SOLR-4260.patch, clusterstate.png,
> demo_shard1_replicas_out_of_sync.tgz
>
>
> After wiping all cores and reindexing some 3.3 million docs from Nutch using
> CloudSolrServer we see inconsistencies between the leader and replica for
> some shards.
> Each core hold about 3.3k documents. For some reason 5 out of 10 shards have
> a small deviation in then number of documents. The leader and slave deviate
> for roughly 10-20 documents, not more.
> Results hopping ranks in the result set for identical queries got my
> attention, there were small IDF differences for exactly the same record
> causing a record to shift positions in the result set. During those tests no
> records were indexed. Consecutive catch all queries also return different
> number of numDocs.
> We're running a 10 node test cluster with 10 shards and a replication factor
> of two and frequently reindex using a fresh build from trunk. I've not seen
> this issue for quite some time until a few days ago.
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