[teiid-issues] [JBoss JIRA] (TEIID-5185) JDBC client intermittently hangs when processing multi-batch result sets from server

[Krum Bakalsky (JIRA)]

Krum Bakalsky created TEIID-5185:
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             Summary: JDBC client intermittently hangs when processing multi-batch result sets from server
                 Key: TEIID-5185
                 URL: https://issues.jboss.org/browse/TEIID-5185
             Project: Teiid
          Issue Type: Bug
          Components: JDBC Driver, Server
    Affects Versions: 9.3.4
         Environment: JDBC client was run through Apache JMeter, on a 64-bit Windows 7 Enterprise SP1 machine, using 64-bit JDK 8;
Teiid Server runs on Linux.
            Reporter: Krum Bakalsky
            Assignee: Steven Hawkins


We have a server-side application that is powered by Teiid version 9.3.4, and that exposes a Teiid JDBC endpoint to its clients.

A couple of app instances are configured to sit behind a VIP load balancer, that works on the TCP level.

We have been experiencing intermittently following problem, when we run Teiid 9.3.4 client to execute multi-batch queries to the server:
* client successfully fetches few batches from server;
* client hangs and its thread blocks on waiting for the next batch to be delivered on the network;
* after 1 hour client throws exceptions that Socket is closed.



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