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From "Ashutosh Chauhan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2883) Metastore client doesnt close connection properly
Date Wed, 04 Apr 2012 18:25:24 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13246546#comment-13246546
] 

Ashutosh Chauhan commented on HIVE-2883:
----------------------------------------

My analysis is client already knows about transport, so inside client.shutdown() it is calling
transport.close() which closes underlying outputstream. So, we *should* not do transport.close()
ourselves in HiveMetaStoreClient.close() ? But, I can't be sure of this hypothesis since implementation
of client.shutdown() is in FaceBookService.client (which is in libfb303.jar) I cant seem to
find sources for this class anywhere. 

So, I request Facebook contributors of Hive project to either fix this bug or release sources
of libfb303.jar so that I can verify and fix this myself.
                
> Metastore client doesnt close connection properly
> -------------------------------------------------
>
>                 Key: HIVE-2883
>                 URL: https://issues.apache.org/jira/browse/HIVE-2883
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.9.0
>            Reporter: Ashutosh Chauhan
>             Fix For: 0.9.0
>
>
> While closing connection, it always fail with following trace. Seemingly, it doesnt have
any harmful effects.
> {code}
> 12/03/20 10:55:02 ERROR hive.metastore: Unable to shutdown local metastore client
> org.apache.thrift.transport.TTransportException: Cannot write to null outputStream
> 	at org.apache.thrift.transport.TIOStreamTransport.write(TIOStreamTransport.java:142)
> 	at org.apache.thrift.protocol.TBinaryProtocol.writeI32(TBinaryProtocol.java:163)
> 	at org.apache.thrift.protocol.TBinaryProtocol.writeMessageBegin(TBinaryProtocol.java:91)
> 	at org.apache.thrift.TServiceClient.sendBase(TServiceClient.java:62)
> 	at com.facebook.fb303.FacebookService$Client.send_shutdown(FacebookService.java:421)
> 	at com.facebook.fb303.FacebookService$Client.shutdown(FacebookService.java:415)
> 	at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.close(HiveMetaStoreClient.java:310)
> {code}

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