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Posted to dev@activemq.apache.org by "Hannu Kröger (JIRA)" <ji...@apache.org> on 2014/12/15 15:25:13 UTC
[jira] [Commented] (AMQ-5339) LevelDBClient operation failed.
NullPointerException after entering recovery mode
[ https://issues.apache.org/jira/browse/AMQ-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14246674#comment-14246674 ]
Hannu Kröger commented on AMQ-5339:
-----------------------------------
[~nfx] How do you restore a corrupt store?
> LevelDBClient operation failed. NullPointerException after entering recovery mode
> ---------------------------------------------------------------------------------
>
> Key: AMQ-5339
> URL: https://issues.apache.org/jira/browse/AMQ-5339
> Project: ActiveMQ
> Issue Type: Bug
> Components: activemq-leveldb-store
> Affects Versions: 5.8.0
> Environment: CentOS 6.5
> Reporter: Serge Smertin
> Priority: Critical
>
> Once in a while we're getting following exception in AMQ logs and there is no other way than purging the queue. How can we overcome this issue? Is it okay to use LevelDB store now? Any answers? :)
> {noformat}
> 2014-09-01 13:25:52,065 [erSimpleAppMain] DEBUG AbstractRegion - localhost adding destination: queue://files/dead
> 2014-09-01 13:25:52,081 [erSimpleAppMain] DEBUG TaskRunnerFactory - Initialized TaskRunnerFactory[ActiveMQ BrokerService[localhost] Task] using ExecutorService: null
> 2014-09-01 13:25:52,098 [erSimpleAppMain] WARN LevelDBClient - DB operation failed. (entering recovery mode)
> 2014-09-01 13:25:52,099 [erSimpleAppMain] DEBUG LevelDBClient - java.lang.NullPointerException
> java.lang.NullPointerException
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$queueCursor$1.apply(LevelDBClient.scala:966)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$queueCursor$1.apply(LevelDBClient.scala:962)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1$$anonfun$apply$mcV$sp$9.apply(LevelDBClient.scala:1038)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1$$anonfun$apply$mcV$sp$9.apply(LevelDBClient.scala:1037)
> at org.apache.activemq.leveldb.LevelDBClient$RichDB.check$4(LevelDBClient.scala:309)
> at org.apache.activemq.leveldb.LevelDBClient$RichDB.cursorRange(LevelDBClient.scala:311)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply$mcV$sp(LevelDBClient.scala:1037)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply(LevelDBClient.scala:1037)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply(LevelDBClient.scala:1037)
> at org.apache.activemq.leveldb.LevelDBClient.usingIndex(LevelDBClient.scala:760)
> at org.apache.activemq.leveldb.LevelDBClient$$anonfun$retryUsingIndex$1.apply(LevelDBClient.scala:766)
> at org.apache.activemq.leveldb.util.RetrySupport$.retry(RetrySupport.scala:38)
> at org.apache.activemq.leveldb.LevelDBClient.retry(LevelDBClient.scala:457)
> at org.apache.activemq.leveldb.LevelDBClient.retryUsingIndex(LevelDBClient.scala:766)
> at org.apache.activemq.leveldb.LevelDBClient.collectionCursor(LevelDBClient.scala:1036)
> at org.apache.activemq.leveldb.LevelDBClient.queueCursor(LevelDBClient.scala:962)
> at org.apache.activemq.leveldb.DBManager.cursorMessages(DBManager.scala:633)
> at org.apache.activemq.leveldb.LevelDBStore$LevelDBMessageStore.recoverNextMessages(LevelDBStore.scala:643)
> at org.apache.activemq.broker.region.Queue.initialize(Queue.java:381)
> at org.apache.activemq.broker.region.DestinationFactoryImpl.createDestination(DestinationFactoryImpl.java:87)
> at org.apache.activemq.broker.region.AbstractRegion.createDestination(AbstractRegion.java:526)
> at org.apache.activemq.broker.jmx.ManagedQueueRegion.createDestination(ManagedQueueRegion.java:56)
> at org.apache.activemq.broker.region.AbstractRegion.addDestination(AbstractRegion.java:136)
> at org.apache.activemq.broker.region.RegionBroker.addDestination(RegionBroker.java:277)
> at org.apache.activemq.broker.BrokerFilter.addDestination(BrokerFilter.java:145)
> {noformat}
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