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ASF GitHub Bot commented on ZOOKEEPER-2355: ------------------------------------------- Github user rakeshadr commented on a diff in the pull request: https://github.com/apache/zookeeper/pull/112#discussion_r125264767 --- Diff: src/java/main/org/apache/zookeeper/server/quorum/Learner.java --- @@ -390,6 +391,7 @@ else if (qp.getType() == Leader.SNAP) { + Long.toHexString(qp.getZxid())); System.exit(13); } + zk.getZKDatabase().setlastProcessedZxid(qp.getZxid()); --- End diff -- @hanm, Do we have any issue created to handle this case, if not please create one for tracking this change. Thanks! > Ephemeral node is never deleted if follower fails while reading the proposal > packet > ----------------------------------------------------------------------------------- > > Key: ZOOKEEPER-2355 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2355 > Project: ZooKeeper > Issue Type: Bug > Components: quorum, server > Affects Versions: 3.4.8, 3.4.9, 3.4.10, 3.5.1, 3.5.2, 3.5.3 > Reporter: Mohammad Arshad > Assignee: Mohammad Arshad > Priority: Critical > Attachments: ZOOKEEPER-2355-01.patch, ZOOKEEPER-2355-02.patch, > ZOOKEEPER-2355-03.patch, ZOOKEEPER-2355-04.patch, ZOOKEEPER-2355-05.patch > > > 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} -- This message was sent by Atlassian JIRA (v6.4.14#64029)