Github user adityakishore commented on the pull request:
https://github.com/apache/drill/pull/443#issuecomment-222385259
The latest patch introduces a separate class `HBaseConnectionManager` and
moves the (HBase) connection life-cycle management responsibility from
HBaseStoragePlugin to this class.
Also addressed Jacques' other comment regarding testing for connection
close/abort in `getConnection()` method.
Added test which verifies that HBase connection close or even HBase cluster
restart does not impact running queries against HBase and does not require
Drill cluster restart.
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