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https://issues.apache.org/jira/browse/ZOOKEEPER-1343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13182895#comment-13182895
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Flavio Junqueira commented on ZOOKEEPER-1343:
---------------------------------------------
Hi Alex, I'd like to suggest that we create a new jira for the issue you're
raising, especially if it is happening in your branch, and not in trunk. We may
want to look more carefully into it before rushing into a fix. Otherwise, your
observations make sense.
> getEpochToPropose should check if lastAcceptedEpoch is greater or equal than
> epoch
> ----------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-1343
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1343
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.4.0
> Reporter: Flavio Junqueira
> Assignee: Flavio Junqueira
> Priority: Critical
> Fix For: 3.4.3, 3.5.0
>
> Attachments: ZOOKEEPER-1343-3.4.patch, ZOOKEEPER-1343.patch,
> ZOOKEEPER-1343.patch, ZOOKEEPER-1343.patch
>
>
> The following block in Leader.getEpochToPropose:
> {noformat}
> if (lastAcceptedEpoch > epoch) {
> epoch = lastAcceptedEpoch+1;
> }
> {noformat}
> needs to be fixed, since it doesn't increment the epoch variable in the case
> epoch != -1 (initial value) and lastAcceptedEpoch is equal. The fix trivial
> and corresponds to changing > with >=.
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