Race condition on ClientCnxn.java
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Key: ZOOKEEPER-58
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-58
Project: Zookeeper
Issue Type: Bug
Reporter: Flavio Paiva Junqueira
There is a race condition involving the ByteByffer incomingBuffer, a field of
ClientCnxn.SendThread. SendThread reads a packet in two steps: first it reads
the length of the packet, followed by a read of the packet itself. Each of
these steps corresponds to a call to doIO() from the main loop of run(). If
there is an exception or the session times out, then it may leave
incomingBuffer in an inconsistent state.
The attached patch adds code to reset incomingBuffer upon a call to
SendThread.cleanup(). This method is called upon an exception on run().
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