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https://issues.apache.org/jira/browse/HIVE-25846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeongdae Kim updated HIVE-25846:
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Description:
Zookeeper watchers are one time trigger and when zookeeper session is expired
by long gc pause or something and is reconnected, all watchers already
registered are gone, and deregister mechanism doesn't work.
We should register deregister watchers again to get notification, after session
re-established
was:Zookeeper watchers are one time trigger and when zookeeper session is
expired by long gc pause or something and is reconnected, all watchers already
registered are gone, and deregister mechanism doesn't work. we should register
deregister watchers again to get notification.
> Ensure that deregistering hive servers works, even after zookeeper session
> expired
> ----------------------------------------------------------------------------------
>
> Key: HIVE-25846
> URL: https://issues.apache.org/jira/browse/HIVE-25846
> Project: Hive
> Issue Type: Bug
> Affects Versions: 2.3.8, 3.1.2
> Reporter: Jeongdae Kim
> Assignee: Jeongdae Kim
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Zookeeper watchers are one time trigger and when zookeeper session is expired
> by long gc pause or something and is reconnected, all watchers already
> registered are gone, and deregister mechanism doesn't work.
> We should register deregister watchers again to get notification, after
> session re-established
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