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https://issues.apache.org/jira/browse/ZOOKEEPER-3858?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Han reassigned ZOOKEEPER-3858:
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Assignee: Jie Huang
> Add metrics to track server unavailable time
> --------------------------------------------
>
> Key: ZOOKEEPER-3858
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3858
> Project: ZooKeeper
> Issue Type: Improvement
> Components: metric system
> Reporter: Jie Huang
> Assignee: Jie Huang
> Priority: Minor
> Fix For: 3.6.3
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> These metrics track the time when a ZooKeeper server is up and running but
> not serving client traffic because it is not part of a quorum. They don't
> track the hardware down time or ZooKeeper process down time.
> UNAVAILABLE_TIME: time between LOOKING and BROADCAST
> LEADER_UNAVAILABLE_TIME: time between LOOKING and BROADCAST on the leader
>
>
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