Github user joshelser commented on the issue:
https://github.com/apache/accumulo/pull/195
> Ensuring that these exist for the Master, TabletServer, and
SimpleGarbageCollector would also be great!
`Master.java`, `TabletServer.java`, and `SimpleGarbageCollector.java` :).
You would see similar calls to a ZooLock object. e.g.
https://github.com/apache/accumulo/blob/c57a3801b843a2d8648ab9cd299ce463a0b71a3e/server/master/src/main/java/org/apache/accumulo/master/Master.java#L1402
At least for the Master process on the master branch, it would appear that
we do already have a log message there.
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