[kudu-CR] KUDU-2975: Spread WAL across multiple directories

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

Hello Tidy Bot, Kudu Jenkins, Andrew Wong, Adar Dembo, 

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

    http://gerrit.cloudera.org:8080/14654

to look at the new patch set (#4).

Change subject: KUDU-2975: Spread WAL across multiple directories
......................................................................

KUDU-2975: Spread WAL across multiple directories

Add a new class for managing WAL dir. This modification has the
following functions not completed at present:
1. during switch "fs_wal_dir" to "fs_wal_dirs", not compatible.
2. WAL disk failure not support.
3. Tool about wal not modify.
4. Lack tests.

The following functions may need improvement
1. the method of selecting WAL directorie for tablet
2. delete tablet's WAL directory form metadata

Change-Id: Ied496804421d91ff1fa63d49979fde971071506e
---
M src/kudu/consensus/consensus_peers-test.cc
M src/kudu/consensus/consensus_queue-test.cc
M src/kudu/consensus/log-test-base.h
M src/kudu/consensus/log_cache-test.cc
M src/kudu/consensus/raft_consensus_quorum-test.cc
M src/kudu/fs/CMakeLists.txt
M src/kudu/fs/data_dirs.cc
M src/kudu/fs/data_dirs.h
M src/kudu/fs/fs.proto
M src/kudu/fs/fs_manager-test.cc
M src/kudu/fs/fs_manager.cc
M src/kudu/fs/fs_manager.h
A src/kudu/fs/wal_dirs.cc
A src/kudu/fs/wal_dirs.h
M src/kudu/integration-tests/delete_tablet-itest.cc
M src/kudu/integration-tests/mini_cluster_fs_inspector.cc
M src/kudu/integration-tests/mini_cluster_fs_inspector.h
M src/kudu/integration-tests/ts_recovery-itest.cc
M src/kudu/server/server_base.cc
M src/kudu/tablet/metadata.proto
M src/kudu/tablet/tablet_bootstrap-test.cc
M src/kudu/tablet/tablet_bootstrap.cc
M src/kudu/tablet/tablet_metadata.cc
M src/kudu/tools/kudu-tool-test.cc
M src/kudu/tools/tool_action_fs.cc
M src/kudu/tools/tool_action_local_replica.cc
M src/kudu/tserver/tablet_copy_client-test.cc
M src/kudu/tserver/tablet_copy_client.cc
M src/kudu/tserver/tablet_server-test.cc
M src/kudu/tserver/ts_tablet_manager.cc
M src/kudu/util/env_util.cc
M src/kudu/util/env_util.h
M src/kudu/util/path_util.h
33 files changed, 1,355 insertions(+), 86 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/54/14654/4
-- 
To view, visit http://gerrit.cloudera.org:8080/14654
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ied496804421d91ff1fa63d49979fde971071506e
Gerrit-Change-Number: 14654
Gerrit-PatchSet: 4
Gerrit-Owner: YangSong <sy...@yeah.net>
Gerrit-Reviewer: Adar Dembo <ad...@cloudera.com>
Gerrit-Reviewer: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Tidy Bot (241)
Gerrit-Reviewer: YangSong <sy...@yeah.net>