[jira] [Created] (NIFI-5027) CLI - Add a command to start controller services

["Pierre Villard (JIRA)" <ji...@apache.org>]

Pierre Villard created NIFI-5027:
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             Summary: CLI - Add a command to start controller services
                 Key: NIFI-5027
                 URL: https://issues.apache.org/jira/browse/NIFI-5027
             Project: Apache NiFi
          Issue Type: Improvement
          Components: Tools and Build
            Reporter: Pierre Villard


When importing a versioned process group from the registry, all the components will be stopped (in case of update, only the newly added components will be stopped). We already have a command pg-start to start a process group, but it will fail if the process group relies on controller services that should be enabled first.

A new command like pg-enable-cs could be added, or just add a parameter/flag to the pg-start command.

Things to consider:
 * there can be a dependency chain between the controller services requiring to start the controller services in the right order. Example: the avro schema registry CS and a reader/writer CS depending on the schema registry CS.
 * there can be a CS defined at pg level that is not referenced by any component inside the pg but that would need to be started nevertheless. Example: the distributed map cache server CS.



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