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https://issues.apache.org/jira/browse/AMQ-4837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826331#comment-13826331
]
Tenzin giatso commented on AMQ-4837:
------------------------------------
Hi,
the broker stopped 3 times this night after about 6h50min, then 6h50 min then
50min.
The error sounds to be the saùme (except the line number in class) but the
broker restart automaticly with the snapshot.
2013-11-19 05:27:43,671 | INFO | Stopping BrokerService[localhost] due to
exception, java.io.IOException |
org.apache.activemq.util.DefaultIOExceptionHandler | LevelDB IOException
handler.
java.io.IOException
at
org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:39)
at
org.apache.activemq.leveldb.LevelDBClient.might_fail(LevelDBClient.scala:554)
at
org.apache.activemq.leveldb.LevelDBClient.might_fail_using_index(LevelDBClient.scala:1021)
at
org.apache.activemq.leveldb.LevelDBClient.collectionCursor(LevelDBClient.scala:1320)
at
org.apache.activemq.leveldb.LevelDBClient.queueCursor(LevelDBClient.scala:1244)
at
org.apache.activemq.leveldb.DBManager.cursorMessages(DBManager.scala:708)
at
org.apache.activemq.leveldb.LevelDBStore$LevelDBMessageStore.recover(LevelDBStore.scala:747)
at org.apache.activemq.broker.region.Topic.doBrowse(Topic.java:588)
at org.apache.activemq.broker.region.Topic.access$100(Topic.java:65)
at org.apache.activemq.broker.region.Topic$6.run(Topic.java:721)
at
org.apache.activemq.thread.SchedulerTimerTask.run(SchedulerTimerTask.java:33)
at java.util.TimerThread.mainLoop(Unknown Source)
at java.util.TimerThread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at
org.apache.activemq.leveldb.LevelDBClient$$anonfun$queueCursor$1.apply(LevelDBClient.scala:1248)
It's not easy to reproduce. It's better with the snapshot but i can't say that
no messages are lost with leveldb.
> LevelDB corrupted in AMQ cluster
> --------------------------------
>
> Key: AMQ-4837
> URL: https://issues.apache.org/jira/browse/AMQ-4837
> Project: ActiveMQ
> Issue Type: Bug
> Components: activemq-leveldb-store
> Affects Versions: 5.9.0
> Environment: CentOS, Linux version 2.6.32-71.29.1.el6.x86_64
> java-1.7.0-openjdk.x86_64/java-1.6.0-openjdk.x86_64
> zookeeper-3.4.5.2
> Reporter: Guillaume
> Assignee: Hiram Chirino
> Priority: Critical
> Attachments: LevelDBCorrupted.zip, activemq.xml
>
>
> I have clustered 3 ActiveMQ instances using replicated leveldb and zookeeper.
> When performing some tests using Web UI, I can across issues that appears to
> corrupt the leveldb data files.
> The issue can be replicated by performing the following steps:
> 1. Start 3 activemq nodes.
> 2. Push a message to the master (Node1) and browse the queue using the web
> UI
> 3. Stop master node (Node1)
> 4. Push a message to the new master (Node2) and browse the queue using the
> web UI. Message summary and queue content ok.
> 5. Start Node1
> 6. Stop master node (Node2)
> 7. Browse the queue using the web UI on new master (Node3). Message
> summary ok however when clicking on the queue, no message details. An error
> (see below) is logged by the master, which attempts a restart.
> From this point, the database appears to be corrupted and the same error
> occurs to each node infinitely (shutdown/restart). The only way around is to
> stop the nodes and clear the data files.
> However when a message is pushed between step 5 and 6, the error doesn’t
> occur.
> =================================
> Leveldb configuration on the 3 instances:
> <persistenceAdapter>
> <replicatedLevelDB
> directory="${activemq.data}/leveldb"
> replicas="3"
> bind="tcp://0.0.0.0:0"
> zkAddress="zkserver:2181"
> zkPath="/activemq/leveldb-stores"
> />
> </persistenceAdapter>
> =================================
> The error is:
> INFO | Stopping BrokerService[localhost] due to exception, java.io.IOException
> java.io.IOException
> at
> org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:39)
> at
> org.apache.activemq.leveldb.LevelDBClient.might_fail(LevelDBClient.scala:543)
> at
> org.apache.activemq.leveldb.LevelDBClient.might_fail_using_index(LevelDBClient.scala:974)
> at
> org.apache.activemq.leveldb.LevelDBClient.collectionCursor(LevelDBClient.scala:1270)
> at
> org.apache.activemq.leveldb.LevelDBClient.queueCursor(LevelDBClient.scala:1194)
> at
> org.apache.activemq.leveldb.DBManager.cursorMessages(DBManager.scala:708)
> at
> org.apache.activemq.leveldb.LevelDBStore$LevelDBMessageStore.recoverNextMessages(LevelDBStore.scala:741)
> at
> org.apache.activemq.broker.region.cursors.QueueStorePrefetch.doFillBatch(QueueStorePrefetch.java:106)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.fillBatch(AbstractStoreCursor.java:258)
> at
> org.apache.activemq.broker.region.cursors.AbstractStoreCursor.reset(AbstractStoreCursor.java:108)
> at
> org.apache.activemq.broker.region.cursors.StoreQueueCursor.reset(StoreQueueCursor.java:157)
> at
> org.apache.activemq.broker.region.Queue.doPageInForDispatch(Queue.java:1875)
> at
> org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2086)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1581)
> at
> org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:129)
> at
> org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:47)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:722)
> Caused by: java.lang.NullPointerException
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$queueCursor$1.apply(LevelDBClient.scala:1198)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$queueCursor$1.apply(LevelDBClient.scala:1194)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1$$anonfun$apply$mcV$sp$12.apply(LevelDBClient.scala:1272)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1$$anonfun$apply$mcV$sp$12.apply(LevelDBClient.scala:1271)
> at
> org.apache.activemq.leveldb.LevelDBClient$RichDB.check$4(LevelDBClient.scala:315)
> at
> org.apache.activemq.leveldb.LevelDBClient$RichDB.cursorRange(LevelDBClient.scala:317)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply$mcV$sp(LevelDBClient.scala:1271)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply(LevelDBClient.scala:1271)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$collectionCursor$1.apply(LevelDBClient.scala:1271)
> at
> org.apache.activemq.leveldb.LevelDBClient.usingIndex(LevelDBClient.scala:968)
> at
> org.apache.activemq.leveldb.LevelDBClient$$anonfun$might_fail_using_index$1.apply(LevelDBClient.scala:974)
> at
> org.apache.activemq.leveldb.LevelDBClient.might_fail(LevelDBClient.scala:540)
> ... 17 more
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