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Status

Current state: Under Discussion

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We will need to expose additional ports from Solr nodes for ZK functionality. This will likely include the ZK secureClientPort, and possibly the serverPort, electionPort and , Admin port and others.

Proposed Changes

There are several phases to accomplishing what we would need to do.

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 [ TBD ]

Rejected Alternatives

• Continue to launch embedded ZK process the same way that we do now. This is an unattractive proposal because we will be tied to ZK internals which are subject to change and not part of their public APIs.

• Jira
  server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key SOLR-7099

   bin/solr -cloud mode should launch a local ZK in its own process using zkcli's runzk option (instead of embedded in the first Solr process)

• Jira
  server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key SOLR-7074

   Simple script to start external Zookeeper

• Jira
  server ASF JIRA serverId 5aa69414-a9e9-3523-82ec-879b028fb15b key SOLR-6734

   Standalone solr as *two* applications -- Solr and a controlling agent