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From "Carl Steinbach (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-2110) Hive Client is indefenitely waiting for reading from Socket
Date Fri, 19 Aug 2011 03:08:30 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Steinbach updated HIVE-2110:
---------------------------------

    Status: Open  (was: Patch Available)

@Prasad: The patch does not apply cleanly with patch -p0. Please see the HowToContribute page
on the wiki for more info.

> Hive Client is indefenitely waiting for reading from Socket
> -----------------------------------------------------------
>
>                 Key: HIVE-2110
>                 URL: https://issues.apache.org/jira/browse/HIVE-2110
>             Project: Hive
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 0.5.0
>         Environment: Hadoop 0.20.1, Hive0.5.0 and SUSE Linux Enterprise Server 10 SP2
(i586) - Kernel 2.6.16.60-0.21-smp (5).
>            Reporter: Chinna Rao Lalam
>            Assignee: Prasad Mujumdar
>             Fix For: 0.8.0
>
>         Attachments: HIVE-2110.patch
>
>
> Hive Client is indefenitely waiting for reading from Socket. Thread dump i  added below.
> Cause is:
>  
> 	In the HiveClient, when client socket is created, the read timeout is mentioned is 0.
So the socket will indefinetly wait when the machine where Hive Server is running is "shutdown"
or "network is unplugged". The same may not happen if the HiveServer alone is killed or gracefully
shutdown. At this time, client will get "connection reset exception". 
> Code in HiveConnection
> -----------------------------------
> {noformat}
> transport = new TSocket(host, port);
> TProtocol protocol = new TBinaryProtocol(transport); 
> client = new HiveClient(protocol);
> {noformat}
> In the Client side, they send the query and wait for the response send_execute(query,id);
recv_execute(); // place where client waiting is initiated
> Thread dump:
> {noformat}
> "main" prio=10 tid=0x0000000040111000 nid=0x3641 runnable [0x00007f0d73f29000]
> 	java.lang.Thread.State: RUNNABLE
> 	at java.net.SocketInputStream.socketRead0(Native Method)
> 	at java.net.SocketInputStream.read(SocketInputStream.java:129)
> 	at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
> 	at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
> 	at java.io.BufferedInputStream.read(BufferedInputStream.java:317) 
> 	locked <0x00007f0d5d3f0828> (a java.io.BufferedInputStream)
> 	at org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:125)
> 	at org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
> 	at org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:314)
> 	at org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:262)
> 	at org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:192)
> 	at org.apache.hadoop.hive.service.ThriftHive$Client.recv_execute(ThriftHive.java:130)
> 	at org.apache.hadoop.hive.service.ThriftHive$Client.execute(ThriftHive.java:109) 
> 	locked <0x00007f0d5d3f0878> (a org.apache.thrift.transport.TSocket)
> 	at org.apache.hadoop.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:218)
> 	at org.apache.hadoop.hive.jdbc.HiveStatement.execute(HiveStatement.java:154)
> {noformat}

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