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https://issues.apache.org/jira/browse/ZOOKEEPER-1992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14080428#comment-14080428
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Hongchao Deng commented on ZOOKEEPER-1992:
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[~shralex]
This is the latest patch from the "ZOOKEEPER-1992-gitaddp.patch":
https://github.com/fengjingchao/zookeeper/commit/217b7de2b242efbf6bb9dd85baad02b34dfd316e?w=1
When ignoring whitespace/line-ending changes they are all the same. It's the as
minimal as I could. Hopefully we can get this in.
> backward compatibility of zoo.cfg
> ---------------------------------
>
> Key: ZOOKEEPER-1992
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1992
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.5.0
> Reporter: Hongchao Deng
> Assignee: Hongchao Deng
> Priority: Blocker
> Fix For: 3.5.0
>
> Attachments: ZOOKEEPER-1992-gitaddp.patch,
> ZOOKEEPER-1992-without-spaces.patch, ZOOKEEPER-1992-withspaces.patch,
> ZOOKEEPER-1992.patch, draft-2.patch, draft-3.patch, draft-4.patch, draft.patch
>
>
> This issue supersedes our discussion in ZOOKEEPER-1989.
> To summarize, ZK users can seamlessly upgrade 3.4 to 3.5. But two things will
> happen:
> 1. the server list will be separated out as a dynamic file (the original
> should be backup automatically).
> 2. Client port is mandatory on reconfig. So when reconfig the server itself
> (its id), the client port in config file will be removed and replaced by the
> one in reconfig (written in dynamic file).
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