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Posted to issues@hbase.apache.org by "Lars Hofhansl (Commented) (JIRA)" <ji...@apache.org> on 2012/02/06 21:11:59 UTC

[jira] [Commented] (HBASE-5336) Spurious exceptions in HConnectionImplementation

    [ https://issues.apache.org/jira/browse/HBASE-5336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201536#comment-13201536 ] 

Lars Hofhansl commented on HBASE-5336:
--------------------------------------

Interestingly I find no matching logs on the RegionServers or Datanodes.
I feel like I have seen a jira about this before, but I cannot find it.
                
> Spurious exceptions in HConnectionImplementation
> ------------------------------------------------
>
>                 Key: HBASE-5336
>                 URL: https://issues.apache.org/jira/browse/HBASE-5336
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>
> I have seen this on the client a few time during heave write testing:
> java.util.concurrent.ExecutionException: java.io.IOException: java.io.IOException: java.lang.NullPointerException
> 	at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
> 	at java.util.concurrent.FutureTask.get(FutureTask.java:83)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatchCallback(HConnectionManager.java:1524)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatch(HConnectionManager.java:1376)
> 	at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:891)
> 	at org.apache.hadoop.hbase.client.HTable.doPut(HTable.java:743)
> 	at org.apache.hadoop.hbase.client.HTable.put(HTable.java:730)
> 	at NewsFeedCreate.insert(NewsFeedCreate.java:91)
> 	at NewsFeedCreate$1.run(NewsFeedCreate.java:38)
> 	at java.lang.Thread.run(Thread.java:619)
> Caused by: java.io.IOException: java.io.IOException: java.lang.NullPointerException
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> 	at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> 	at org.apache.hadoop.ipc.RemoteException.instantiateException(RemoteException.java:95)
> 	at org.apache.hadoop.ipc.RemoteException.unwrapRemoteException(RemoteException.java:79)
> 	at org.apache.hadoop.hbase.client.ServerCallable.translateException(ServerCallable.java:228)
> 	at org.apache.hadoop.hbase.client.ServerCallable.withoutRetries(ServerCallable.java:212)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1360)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1348)
> 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> 	... 1 more
> Caused by: org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.lang.NullPointerException
> 	at org.apache.hadoop.io.SequenceFile$Writer.getLength(SequenceFile.java:1099)
> 	at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogWriter.getLength(SequenceFileLogWriter.java:243)
> 	at org.apache.hadoop.hbase.regionserver.wal.HLog.syncer(HLog.java:1289)
> 	at org.apache.hadoop.hbase.regionserver.wal.HLog.sync(HLog.java:1386)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchPut(HRegion.java:2161)
> 	at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:1954)
> 	at org.apache.hadoop.hbase.regionserver.HRegionServer.multi(HRegionServer.java:3363)
> 	at sun.reflect.GeneratedMethodAccessor23.invoke(Unknown Source)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
> 	at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1326)
> 	at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:899)
> 	at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
> 	at $Proxy1.multi(Unknown Source)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1353)
> 	at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1351)
> 	at org.apache.hadoop.hbase.client.ServerCallable.withoutRetries(ServerCallable.java:210)
> 	... 7 more

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