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https://issues.apache.org/jira/browse/FLINK-13417?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16915740#comment-16915740
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Till Rohrmann commented on FLINK-13417:
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Are we intending to drop support for ZooKeeper {{3.4}}? This might break
existing setups where users have a ZooKeeper 3.4 quorum running. However, I'm
not sure how widespread the usage of {{3.4}} still is.
I assume that we should then also bump the curator version to {{4.2.0}}.
> Bump Zookeeper to 3.5.5
> -----------------------
>
> Key: FLINK-13417
> URL: https://issues.apache.org/jira/browse/FLINK-13417
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.9.0
> Reporter: Konstantin Knauf
> Priority: Blocker
> Fix For: 1.10.0
>
>
> User might want to secure their Zookeeper connection via SSL.
> This requires a Zookeeper version >= 3.5.1. We might as well try to bump it
> to 3.5.5, which is the latest version.
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