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https://issues.apache.org/jira/browse/BOOKKEEPER-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sijie Guo resolved BOOKKEEPER-1098.
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Resolution: Fixed
Assignee: Samuel Just
Fix Version/s: 4.5.0
> ZkUnderreplicationManager can build up an unbounded number of watchers
> ----------------------------------------------------------------------
>
> Key: BOOKKEEPER-1098
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-1098
> Project: Bookkeeper
> Issue Type: Bug
> Components: bookkeeper-auto-recovery
> Reporter: Samuel Just
> Assignee: Samuel Just
> Priority: Minor
> Fix For: 4.5.0
>
>
> getLedgerToReplicate leaves watches each time it traverses the
> tree until it finds a suitable replication target. Since we don't have
> a way of canceling watches, these watches tend to get abandoned,
> particularly on interior nodes, which aren't changed much. Thus,
> over time, some nodes would build up a very large number of watches.
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