I forgot if you have provided already a description of how you reproduce it. If you could point me out to that, I would appreciate.


On Jul 13, 2010, at 11:33 PM, Vishal K wrote:

Hi Flavio ,

I got the same error messages. I can reproduce this quite easily. I will
capture the logs again. Is there anything else you would like me to provide?


On Tue, Jul 13, 2010 at 3:52 PM, Flavio Paiva Junqueira (JIRA) <
j...@apache.org> wrote:


Flavio Paiva Junqueira commented on ZOOKEEPER-790:

Vishal, What exactly didn't work? Do you get the same error messages with
the patch? Do you have a reliable way of reproducing it? In general, it
would be useful if you could provide more detail.


Last processed zxid set prematurely while establishing leadership

               Key: ZOOKEEPER-790
               URL: https://issues.apache.org/jira/browse/ZOOKEEPER-790
           Project: Zookeeper
        Issue Type: Bug
        Components: quorum
  Affects Versions: 3.3.1
          Reporter: Flavio Paiva Junqueira
          Assignee: Flavio Paiva Junqueira
          Priority: Blocker
           Fix For: 3.3.2, 3.4.0

       Attachments: ZOOKEEPER-790.patch

The leader code is setting the last processed zxid to the first of the
new epoch even before connecting to a quorum of followers. Because the
leader code sets this value before connecting to a quorum of followers
(Leader.java:281) and the follower code throws an IOException
(Follower.java:73) if the leader epoch is smaller, we have that when the
false leader drops leadership and becomes a follower, it finds a smaller
epoch and kills itself.

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