[4.3] Fix removing connection twice from pool. #598
Merged
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When trying to close a stale connection the driver count realize that the
connection is dead on trying to send GOODBYE. This would cause the connection
to make sure that all connections to the same address would get removed from
the pool as well. Since this removal only happens as a side effect of
connection.close()
and does not always happen, the driver would still tryto remove the (now already removed) connection form the pool after closure.
Fixes:
ValueError: deque.remove(x): x not in deque