Hello Kudu Jenkins,

I'd like you to reexamine a change.  Please visit

    http://gerrit.cloudera.org:8080/7207

to look at the new patch set (#15).

Change subject: KUDU-1943: Add BlockTransaction to Block Manager
......................................................................

KUDU-1943: Add BlockTransaction to Block Manager

This adds a new layer of abstraction 'BlockTransaction' to
Block Manager, to accumulate new blocks in a logical operation,
e.g. flush/compaction. Avoid using fsync() per block can
potentionaly reduce a lot I/O overhead.

This patch also add a new API, Finalize(), to Block Manager,
so that for LBM container can be reused without flushing
in-flight writable blocks to disk.

A design doc can be found here:
https://docs.google.com/document/d/1cB8pDs-Ho7p2HlzkWo1d-wmXr90YntIjdvdOv7u7gn0/edit?usp=sharing

Change-Id: I01f3ed830cc1f86d7bb8a66b2f780914a88884bd
---
M src/kudu/cfile/bloomfile.cc
M src/kudu/cfile/bloomfile.h
M src/kudu/cfile/cfile-test.cc
M src/kudu/cfile/cfile_writer.cc
M src/kudu/cfile/cfile_writer.h
M src/kudu/fs/block_manager-stress-test.cc
M src/kudu/fs/block_manager-test.cc
M src/kudu/fs/block_manager.cc
M src/kudu/fs/block_manager.h
M src/kudu/fs/file_block_manager.cc
M src/kudu/fs/file_block_manager.h
M src/kudu/fs/log_block_manager-test.cc
M src/kudu/fs/log_block_manager.cc
M src/kudu/fs/log_block_manager.h
M src/kudu/tablet/deltafile.cc
M src/kudu/tablet/deltafile.h
M src/kudu/tablet/diskrowset.cc
M src/kudu/tablet/diskrowset.h
M src/kudu/tablet/multi_column_writer.cc
M src/kudu/tablet/multi_column_writer.h
20 files changed, 734 insertions(+), 304 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/07/7207/15
-- 
To view, visit http://gerrit.cloudera.org:8080/7207
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I01f3ed830cc1f86d7bb8a66b2f780914a88884bd
Gerrit-PatchSet: 15
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Adar Dembo <a...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <danburk...@apache.org>
Gerrit-Reviewer: Hao Hao <hao....@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Tidy Bot

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