Race condition in network server's thread pool
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Key: DERBY-1817
URL: http://issues.apache.org/jira/browse/DERBY-1817
Project: Derby
Issue Type: Bug
Components: Network Server
Affects Versions: 10.2.1.0
Reporter: Knut Anders Hatlen
If there is a free DRDAConnThread when a client connects to the network server,
the session is put into a queue from which one of the free DRDAConnThreads can
pick it up. However, if another client connects after the session was put into
the queue, but before the DRDAConnThread has picked it up, one might end up
with more sessions in the queue than there are free threads. This can lead to
hangs like the ones that we currently see in many of Ole's tests (for instance
checkDataSource -
http://www.multinet.no/~solberg/public/Apache/TinderBox_Derby/testlog/SunOS-5.10_i86pc-i386/440518-derbyall_diff.txt).
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