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https://issues.apache.org/jira/browse/ZOOKEEPER-3448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enrico Olivelli resolved ZOOKEEPER-3448.
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Fix Version/s: 3.6.0
Resolution: Fixed
Issue resolved by pull request 1007
[https://github.com/apache/zookeeper/pull/1007]
> Introduce MessageTracker to assist debug leader and leaner connectivity issues
> ------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-3448
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3448
> Project: ZooKeeper
> Issue Type: Improvement
> Components: server
> Affects Versions: 3.6.0
> Reporter: Michael Han
> Assignee: Michael Han
> Priority: Major
> Labels: Twitter, pull-request-available
> Fix For: 3.6.0
>
> Time Spent: 5h
> Remaining Estimate: 0h
>
> We want to have better insight on the state of the world when learners lost
> connection with leader, so we need capture more information when that
> happens. We capture more information through MessageTracker which will record
> the last few sent and received messages at various protocol stage, and these
> information will be dumped to log files for further analysis.
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