Nick Bailey created CASSANDRA-6373:
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Summary: describe_ring hangs with hsha thrift server
Key: CASSANDRA-6373
URL: https://issues.apache.org/jira/browse/CASSANDRA-6373
Project: Cassandra
Issue Type: Bug
Reporter: Nick Bailey
Fix For: 2.0.3
Attachments: describe_ring_failure.patch
There is a strange bug with the thrift hsha server in 2.0 (we switched to lmax
disruptor server).
The bug is that the first call to describe_ring from one connection will hang
indefinitely when the client is not connecting from localhost (or it at least
looks like the client is not on the same host). When connecting from localhost
the first call will work as expected. And in either case subsequent calls from
the same connection will work as expected. According to git bisect the bad
commit is the switch to the lmax disruptor server:
https://github.com/apache/cassandra/commit/98eec0a223251ecd8fec7ecc9e46b05497d631c6
I've attached the patch I used to reproduce the error in the unit tests. The
command to reproduce is:
{noformat}
PYTHONPATH=test nosetests
--tests=system.test_thrift_server:TestMutations.test_describe_ring
{noformat}
I reproduced on ec2 and a single machine by having the server bind to the
private ip on ec2 and the client connect to the public ip (so it appears as if
the client is non local). I've also reproduced with two different vms though.
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