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Posted to dev@bookkeeper.apache.org by "Samuel Just (JIRA)" <ji...@apache.org> on 2017/06/14 22:27:00 UTC

[jira] [Created] (BOOKKEEPER-1098) ZkUnderreplicationManager can build up an unbounded number of watchers

Samuel Just created BOOKKEEPER-1098:
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             Summary: 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
            Priority: Minor


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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