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https://issues.apache.org/jira/browse/ZOOKEEPER-2355?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16072263#comment-16072263
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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}
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