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Posted to issues@drill.apache.org by "Paul Rogers (Jira)" <ji...@apache.org> on 2020/02/17 18:52:00 UTC

[jira] [Created] (DRILL-7590) Refactor plugin registry

Paul Rogers created DRILL-7590:
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             Summary: Refactor plugin registry
                 Key: DRILL-7590
                 URL: https://issues.apache.org/jira/browse/DRILL-7590
             Project: Apache Drill
          Issue Type: Improvement
    Affects Versions: 1.17.0
            Reporter: Paul Rogers
            Assignee: Paul Rogers
             Fix For: 1.18.0


The plugin registry connects configurations, stored in ZK, with implementations, which are Java classes. The registry handles a large number of tasks including:

* Populating "bootstrap" plugin configurations and handling upgrades.
* Reading from, and writing to, the persistent store in ZK.
* Handling "normal" (configured) plugins and special system plugins (which have no configuration.)
* Handle format plugins which are always associated with the DFS storage plugin.
* And so on.

The code has grown overly complex. As we look to add a new, cleaner plugin mechanism, we will start by cleaning up what we have to allow the new mechanism to be one of many.



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