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https://issues.apache.org/jira/browse/NIFI-6624?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nathan Gough resolved NIFI-6624.
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Resolution: Done
> Automatically migrate old embedded zookeeper.properties files to the new
> format
> -------------------------------------------------------------------------------
>
> Key: NIFI-6624
> URL: https://issues.apache.org/jira/browse/NIFI-6624
> Project: Apache NiFi
> Issue Type: Sub-task
> Components: Core Framework
> Affects Versions: 1.9.2
> Reporter: Nathan Gough
> Assignee: Nathan Gough
> Priority: Major
> Fix For: 1.10.0
>
>
> The 3.5.x Zookeeper properties file has changed:
> [https://zookeeper.apache.org/doc/r3.5.2-alpha/zookeeperReconfig.html#sc_reconfig_clientport]
> As a result, the current embedded zookeeper bundled with NiFi will require a
> minor change to the zookeeper.properties file. We could potentially do this
> automatically by removing the clientPort line and appending the value to the
> end of the server string/s.
> The assumption here would be that the client port is currently configured the
> same across all servers. If not, we would not be able to auto-migrate the
> change, and we would need to fail the start and get the user to configure the
> zookeeper.properties file correctly across all nodes.
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