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From "cuijianwei (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7684) NullPointerException in SecureClient when Call is cleaned up due to RPC timeout
Date Wed, 30 Jan 2013 07:13:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13566243#comment-13566243
] 

cuijianwei commented on HBASE-7684:
-----------------------------------

Thanks for Lars Hofhansl, we have applied the path to our codebase.
                
> NullPointerException in SecureClient when Call is cleaned up due to RPC  timeout
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-7684
>                 URL: https://issues.apache.org/jira/browse/HBASE-7684
>             Project: HBase
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.94.3
>            Reporter: cuijianwei
>            Assignee: cuijianwei
>             Fix For: 0.94.5
>
>         Attachments: check_call_null_before_set_in_secure_client.diff, check_call_null_before_set_value_in_secure_client.txt,
HBASE-7684-0.94.txt
>
>
> We find NullPointException when using SecureClient to access hbase. From the source code,
we find that receiveResponse() will not check call != null before invoke call.setValue(...)(line
378 and 380 in SecureClient.java). However, as explained in receiveResponse() of HBaseClient,
the call may have been cleaned up due to RPC timeout; therefore, it should be better to check
call != null before invoke call.setValue(...) in SecureClient.
> The exception stack trace is : 
> {code}
>   2013-01-28 12:11:20,060 [request-queuepool-10-thread-1] WARN  org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation
- Failed all from region=sms_message,98,1358995149987.0c18f72df3f3f398f9f6dc83fe65afad., hostname=10.20.2.72,
port=11600
>     2013-01-28 12:11:20,060 [request-queuepool-10-thread-1] WARN  org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation
- Failed all from region=sms_message,98,1358995149987.0c18f72df3f3f398f9f6dc83fe65afad., hostname=10.20.2.72,
port=11600
>     java.util.concurrent.ExecutionException: java.io.IOException: Call to 10.20.2.72/10.20.2.72:11600
failed on local exception: java.io.IOException: Unexpected exception receiving call responses
>       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:1544)
>       at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatch(HConnectionManager.java:1396)
>       at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:937)
>       at org.apache.hadoop.hbase.client.HTable.doPut(HTable.java:777)
>       at org.apache.hadoop.hbase.client.HTable.put(HTable.java:752)
>       at org.apache.hadoop.hbase.client.HTablePool$PooledHTable.put(HTablePool.java:397)
>       at com.xiaomi.infra.hbase.business.dao.sms.SmsMessage.updateStatus(SmsMessage.java:245)
>       at com.xiaomi.infra.hbase.business.client.sms.HMessageDao.doUpdateMessage(HMessageDao.java:165)
>       at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
>       at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>       at java.lang.reflect.Method.invoke(Method.java:597)
>       at com.xiaomi.infra.hbase.business.client.AsyncDaoWrapper.wrapperRunMethod(AsyncDaoWrapper.java:97)
>       at com.xiaomi.infra.hbase.business.client.HBaseRequest.run(AsyncDaoWrapper.java:135)
>       at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>       at java.lang.Thread.run(Thread.java:662)
>     Caused by: java.io.IOException: Call to 10.20.2.72/10.20.2.72:11600 failed on local
exception: java.io.IOException: Unexpected exception receiving call responses
>       at org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:1056)
>       at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:1025)
>       at org.apache.hadoop.hbase.ipc.SecureRpcEngine$Invoker.invoke(SecureRpcEngine.java:165)
>       at $Proxy7.multi(Unknown Source)
>       at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1373)
>       at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3$1.call(HConnectionManager.java:1)
>       at org.apache.hadoop.hbase.client.ServerCallable.withoutRetries(ServerCallable.java:210)
>       at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1380)
>       at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation$3.call(HConnectionManager.java:1)
>       at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>       at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>       ... 3 more
>     Caused by: java.io.IOException: Unexpected exception receiving call responses
>       at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:610)
>     Caused by: java.lang.NullPointerException
>       at org.apache.hadoop.hbase.ipc.SecureClient$SecureConnection.receiveResponse(SecureClient.java:378)
>       at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:606)
> {code}

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