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Message Posted: Wed, 04 May 2011 @ 09:25:55 GMT


     
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Subj:   Connection close not returning
 
From:   Flax, Ilya

Hello Guys,

We have the following problem :

The phenomenon

The operation Connection.close() on a Teradata connection sometimes gets blocked forever.

The relevant java stack trace

     java.lang.Thread.State: RUNNABLE
     at java.net.SocketInputStream.socketRead0(Native Method) at
     java.net.SocketInputStream.read(SocketInputStream.java :129) at
     com.teradata.jdbc.jdbc_4.io.TDNetworkIOIF.read(TDNetwo rkIOIF.java:474) at
     com.teradata.jdbc.jdbc_4.io.TDPacketStream.readStream(
     TDPacketStream.java:818)
     at com.teradata.jdbc.jdbc_4.io.TDPacketStream.readStream(
     TDPacketStream.java:794)
     at com.teradata.jdbc.jdbc.GenericLogOffRspState.action(Ge
     nericLogOffRspState.java:66)
     at com.teradata.jdbc.jdbc.GenericLogoffController.run(Gen
     ericLogoffController.java:43)
     - locked <0x00002aab618d8af0> (a com.teradata.jdbc.jdbc_4.io.TDNetworkIOIF)
     at com.teradata.jdbc.jdbc_4.TDSession.close(TDSession.jav a:472) at
     com.teradata.jdbc.jdbc_3.ifjdbc_4.TeraLocalConnection.
     close(TeraLocalConnection.java:255)

The teradata driver we use

     com.teradata.jdbc.TeraDriver
     From terajdbc4-13.10.00.10.jar

The code that closes the connection

     static public void JdbcClose(Connection conn) { try { if (conn != null) conn.close(); }
     catch (SQLException e) { logger.warn("Unable to dispose of SQL connection properly.", e);
     } }

Can anyone help with this ?

Is there a way to brutely close the thread or call conn.close() with a timeout ?


Thanks,

Ilia



     
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