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https://issues.apache.org/jira/browse/ZOOKEEPER-790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888123#action_12888123
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Vishal K commented on ZOOKEEPER-790:
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Hi Flavio,

I think there are two additional related problems:

1. Why are the other two nodes that have formed the cluster in LOOKING state? 
Both should reply with FOLLOWING
174 2010-06-20 23:22:46,440 - INFO 
[QuorumPeer:/0.0.0.0:2181:fastleaderelect...@689] - Notification: 2, 
73014444097, 1, 0, LOOKING, LOOKING, 2

2. The node attempting to join goes in an infinite loop of join fails. We 
should add a delay.

Thanks,
Vishal

> 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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