Mike Percy has posted comments on this change.

Change subject: KUDU-236 (part 1). Implement tablet history GC
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Patch Set 15:

> > > Could you also add a GCing thread to mt-tablet-test? It's a
 > good
 > > > way to test interactions between concurrent tablet operations.
 > >
 > > There's no new dedicated GC task yet. The GCing happens as part
 > of
 > > flush and compaction. That new MM task is coming later.
 > 
 > mt-tablet-test doesn't invoke MM tasks though; it just calls public
 > Tablet methods. I only skimmed this patch but I think it adds
 > everything needed to extend the test.

The way we would do it is simply set the tablet_history_max_age to some low 
value like 1 or 2 in the test, I guess. Everything else would be automatic, 
assuming it's already using HybridTime. That's something I can do.

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Gerrit-MessageType: comment
Gerrit-Change-Id: If9833a863f118eb82be80ea56204d0d9141611c2
Gerrit-PatchSet: 15
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mpe...@apache.org>
Gerrit-Reviewer: Todd Lipcon <t...@apache.org>
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