[kudu-CR] Change flush defaults to encourage parallel IO and larger flushes

["Todd Lipcon (Code Review)" <ge...@cloudera.org>]

Hello Jean-Daniel Cryans,

I'd like you to do a code review.  Please visit

    http://gerrit.cloudera.org:8080/3186

to review the following change.

Change subject: Change flush defaults to encourage parallel IO and larger flushes
......................................................................

Change flush defaults to encourage parallel IO and larger flushes

Based on some recent experiments with high throughput writes using YCSB[1],
these defaults make more sense for the typical throughput-oriented applications
that Kudu is currently targeting.

[1] http://getkudu.io/2016/04/26/ycsb.html

Change-Id: I1c70d9c76ed33bbfca5480e1d1f343c6dab36d3b
---
M docs/release_notes.adoc
M src/kudu/cfile/cfile_writer.cc
M src/kudu/tablet/tablet_peer_mm_ops.cc
3 files changed, 22 insertions(+), 9 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/86/3186/1
-- 
To view, visit http://gerrit.cloudera.org:8080/3186
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I1c70d9c76ed33bbfca5480e1d1f343c6dab36d3b
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Jean-Daniel Cryans