Arshad Mohammad created ZOOKEEPER-2355:
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Summary: ZooKeeper ephemeral node is never deleted if follower
fail while reading the proposal packet
Key: ZOOKEEPER-2355
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2355
Project: ZooKeeper
Issue Type: Bug
Reporter: Arshad Mohammad
Assignee: Arshad Mohammad
Priority: Critical
ZooKeeper ephemeral node is never deleted if follower fail while reading the
proposal packet
The scenario is as follows:
# Configure three node ZooKeeper cluster, lets say nodes are A, B and C, start
all, assume A is leader, B and C are follower
# Connect to any of the server and create ephemeral node /e1
# Close the session, ephemeral node /e1 will go for deletion
# While receiving delete proposal make Follower B to fail with
{{SocketTimeoutException}}. This we need to do to reproduce the scenario
otherwise in production environment it happens because of network fault.
# Remove the fault, just check that faulted Follower is now connected with
quorum
# Connect to any of the server, create the same ephemeral node /e1, created is
success.
# Close the session, ephemeral node /e1 will go for deletion
# {color:red}/e1 is not deleted from the faulted Follower B, It should have
been deleted as it was again created with another session{color}
# {color:green}/e1 is deleted from Leader A and other Follower C{color}
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