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From "Timothy Bish (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (AMQ-5339) LevelDBClient operation failed. NullPointerException after entering recovery mode
Date Fri, 03 Feb 2017 23:07:51 GMT

     [ https://issues.apache.org/jira/browse/AMQ-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Timothy Bish closed AMQ-5339.
-----------------------------
    Resolution: Won't Fix

LevelDB has been deprecated and is no longer supported.

> 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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