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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