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https://issues.apache.org/jira/browse/HADOOP-16873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042040#comment-17042040
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Wei-Chiu Chuang commented on HADOOP-16873:
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Thanks [~nkalmar].
Looking at RN, not a lot of code churns but a number of good stuff in there:
(1) netty, jetty, jackson update
(2) kerberos fixes for JDK 1.8.232 and JDK 11.03
We in the Hadoop project should investigate (2) too. ZK fixed (2) by updating
Kerby to 2.0.0, and we should consider doing the same.
> Upgrade to Apache ZooKeeper 3.5.7
> ---------------------------------
>
> Key: HADOOP-16873
> URL: https://issues.apache.org/jira/browse/HADOOP-16873
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Norbert Kalmár
> Assignee: Norbert Kalmár
> Priority: Major
>
> Apache ZooKeeper 3.5.7 has been released, which contains some important fixes
> including third party CVE, possible split brain and data loss in some very
> rare but plausible scenarios etc.
> the release has been tested by the curator team to be compatible with 4.2.0
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