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https://issues.apache.org/jira/browse/SOLR-4744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13673802#comment-13673802
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Hoss Man commented on SOLR-4744:
--------------------------------
Committed revision 1489222.
Committed revision 1489224.
Committed revision 1489231.
bq. i have no idea if this fix is "correct' but it is certainly better then
what we had.
bq. I'll be leaving this issue open for Shalin to review & correct as needed.
> Version conflict error during shard split test
> ----------------------------------------------
>
> Key: SOLR-4744
> URL: https://issues.apache.org/jira/browse/SOLR-4744
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.3
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Priority: Minor
> Fix For: 4.4, 4.3.1
>
> Attachments: SOLR-4744__no_more_NPE.patch, SOLR-4744.patch,
> SOLR-4744.patch
>
>
> ShardSplitTest fails sometimes with the following error:
> {code}
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.861;
> org.apache.solr.cloud.Overseer$ClusterStateUpdater; Update shard state
> invoked for collection: collection1
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.861;
> org.apache.solr.cloud.Overseer$ClusterStateUpdater; Update shard state shard1
> to inactive
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.861;
> org.apache.solr.cloud.Overseer$ClusterStateUpdater; Update shard state
> shard1_0 to active
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.861;
> org.apache.solr.cloud.Overseer$ClusterStateUpdater; Update shard state
> shard1_1 to active
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.873;
> org.apache.solr.update.processor.LogUpdateProcessor; [collection1] webapp=
> path=/update params={wt=javabin&version=2} {add=[169 (1432319507166134272)]}
> 0 2
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.877;
> org.apache.solr.common.cloud.ZkStateReader$2; A cluster state change:
> WatchedEvent state:SyncConnected type:NodeDataChanged
> path:/clusterstate.json, has occurred - updating... (live nodes size: 5)
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.884;
> org.apache.solr.update.processor.LogUpdateProcessor;
> [collection1_shard1_1_replica1] webapp= path=/update
> params={distrib.from=http://127.0.0.1:41028/collection1/&update.distrib=FROMLEADER&wt=javabin&distrib.from.parent=shard1&version=2}
> {} 0 1
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.885;
> org.apache.solr.update.processor.LogUpdateProcessor; [collection1] webapp=
> path=/update
> params={distrib.from=http://127.0.0.1:41028/collection1/&update.distrib=FROMLEADER&wt=javabin&distrib.from.parent=shard1&version=2}
> {add=[169 (1432319507173474304)]} 0 2
> [junit4:junit4] 1> ERROR - 2013-04-14 19:05:26.885;
> org.apache.solr.common.SolrException; shard update error StdNode:
> http://127.0.0.1:41028/collection1_shard1_1_replica1/:org.apache.solr.common.SolrException:
> version conflict for 169 expected=1432319507173474304 actual=-1
> [junit4:junit4] 1> at
> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:404)
> [junit4:junit4] 1> at
> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:181)
> [junit4:junit4] 1> at
> org.apache.solr.update.SolrCmdDistributor$1.call(SolrCmdDistributor.java:332)
> [junit4:junit4] 1> at
> org.apache.solr.update.SolrCmdDistributor$1.call(SolrCmdDistributor.java:306)
> [junit4:junit4] 1> at
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> [junit4:junit4] 1> at
> java.util.concurrent.FutureTask.run(FutureTask.java:166)
> [junit4:junit4] 1> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> [junit4:junit4] 1> at
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> [junit4:junit4] 1> at
> java.util.concurrent.FutureTask.run(FutureTask.java:166)
> [junit4:junit4] 1> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
> [junit4:junit4] 1> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> [junit4:junit4] 1> at java.lang.Thread.run(Thread.java:679)
> [junit4:junit4] 1>
> [junit4:junit4] 1> INFO - 2013-04-14 19:05:26.886;
> org.apache.solr.update.processor.DistributedUpdateProcessor; try and ask
> http://127.0.0.1:41028 to recover
> {code}
> The failure is hard to reproduce and very timing sensitive. These kind of
> failures have always been seen right after "updateshardstate" action.
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