Andrew Wong has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/14650 )

Change subject: KUDU-2929: don't do nothing when under memory pressure
......................................................................


Patch Set 3:

Deployed this on a real cluster.

First, I set the memory pressure limit to 3% of a hard limit of 1GiB. Running a 
small write workload quickly ballooned the tablet's rowset tree height to 117, 
at which point, no ops would happen. Even after restarting the node, the 
tserver was effectively stuck.

After deploying this patch and restarting, the tablet quickly compacted itself 
down to a height of 1.


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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I030f9ef379af501fe7bd2f42906ec2f9ea16dbde
Gerrit-Change-Number: 14650
Gerrit-PatchSet: 3
Gerrit-Owner: Andrew Wong <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Andrew Wong <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Comment-Date: Thu, 07 Nov 2019 07:49:12 +0000
Gerrit-HasComments: No

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