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https://issues.apache.org/jira/browse/FLINK-6522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16621874#comment-16621874
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Till Rohrmann commented on FLINK-6522:
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Yes I think we still don't clean properly up the ZNodes in ZooKeeper. A proper
fix for that should go hand in hand with FLINK-10333.
> Add ZooKeeper cleanup logic to ZooKeeperHaServices
> --------------------------------------------------
>
> Key: FLINK-6522
> URL: https://issues.apache.org/jira/browse/FLINK-6522
> Project: Flink
> Issue Type: Improvement
> Components: Distributed Coordination
> Affects Versions: 1.3.0, 1.4.0
> Reporter: Till Rohrmann
> Assignee: Fang Yong
> Priority: Major
>
> The {{ZooKeeperHaServices}} provide a {{CuratorFramework}} client to access
> ZooKeeper data. Consequently, all data (also for different job) are stored
> under the same root node. When
> {{HighAvailabilityServices#closeAndCleanupAllData}} is called, then this data
> should be cleaned up. This cleanup logic is currently missing.
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