Sarah Abbey created GEODE-8498:
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Summary: Messages written to Netty channel sometimes delivered out
of order
Key: GEODE-8498
URL: https://issues.apache.org/jira/browse/GEODE-8498
Project: Geode
Issue Type: Bug
Components: redis
Reporter: Sarah Abbey
{code:java}
[err]: Mix SUBSCRIBE and PSUBSCRIBE in tests/unit/pubsub.tcl
Expected 'pmessage foo.* foo.bar hello' to be equal to 'message foo.bar hello'
*** [err]: Mix SUBSCRIBE and PSUBSCRIBE in tests/unit/pubsub.tcl
Expected 'pmessage foo.* foo.bar hello' to be equal to 'message foo.bar hello'
Cleanup: may take some time... OK
{code}
When writing responses to a Netty channel, the messages may get written out of
order in the `writeAndFlush` call. To verify this bug, we used a single thread
to call `writeAndFlush` and added logging right before calling `writeAndFlush`
and after `afterWrite` in the callback listener. We saw the messages get
logged in the proper order before `writeAndFlush` was called, but the messages
were logged out of order in the callback listener and arrived in the wrong
order on the client.
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