Hello David Ribeiro Alves, Adar Dembo,
I'd like you to do a code review. Please visit
http://gerrit.cloudera.org:8080/6802
to review the following change.
Change subject: WIP: KUDU-1949. Maintenance Manager should trigger flushes
earlier
......................................................................
WIP: KUDU-1949. Maintenance Manager should trigger flushes earlier
This changes the maintenance manager to start triggering flushes at the
60% heap usage threshold, and adjusts the memory limiting to only start
rejecting writes at the 80% threshold.
This is based on analysis in [1] ("After tweaking memory backpressure
rejection") in which we found that earlier flushing could keep the
system from making too many rejections.
WIP: want to run before/after test again with this latest iter
[1]
https://docs.google.com/document/d/1U1IXS1XD2erZyq8_qG81A1gZaCeHcq2i0unea_eEf5c/edit#heading=h.gw87heq4fq6l
Change-Id: I8b7e703c82ac14fbce3a699bdf6a2f0fb4ed93a1
---
M src/kudu/util/maintenance_manager.cc
M src/kudu/util/process_memory.cc
M src/kudu/util/process_memory.h
3 files changed, 21 insertions(+), 2 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/02/6802/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I8b7e703c82ac14fbce3a699bdf6a2f0fb4ed93a1
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <t...@apache.org>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: David Ribeiro Alves <davidral...@gmail.com>
