[kudu-CR] mini cluster: support multiple data dirs

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

Hello Kudu Jenkins,

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

    http://gerrit.cloudera.org:8080/7211

to look at the new patch set (#7).

Change subject: mini_cluster: support multiple data dirs
......................................................................

mini_cluster: support multiple data dirs

This patch gives MiniTabletServers and MiniMasters the ability to
start with multiple data dirs. A number of dirs is specified and
directory names are generated for the specified number. Additionally,
a WAL dir will be generated with an appropriate suffix. Additionally,
these can both be specified by MiniClusterOptions.

The original directory structure is kept as a default.

E.g. if the number of data dirs is 3, the following directories will
be generated for tservers (a similar one is created for masters):
/test_dir/test_tserver/wal
/test_dir/test_tserver/data0
/test_dir/test_tserver/data1
/test_dir/test_tserver/data2

Original:
/test_dir/test_tserver

Tests are added to tablet_server-test and master-test to exercise this.

Change-Id: I52c9352f1a3565d58149cf2c63d37246c6b39c23
---
M src/kudu/integration-tests/internal_mini_cluster.cc
M src/kudu/integration-tests/internal_mini_cluster.h
M src/kudu/master/master-test.cc
M src/kudu/master/mini_master.cc
M src/kudu/master/mini_master.h
M src/kudu/tserver/mini_tablet_server.cc
M src/kudu/tserver/mini_tablet_server.h
M src/kudu/tserver/tablet_copy-test-base.h
M src/kudu/tserver/tablet_server-stress-test.cc
M src/kudu/tserver/tablet_server-test-base.h
M src/kudu/tserver/tablet_server-test.cc
11 files changed, 84 insertions(+), 17 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/11/7211/7
-- 
To view, visit http://gerrit.cloudera.org:8080/7211
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I52c9352f1a3565d58149cf2c63d37246c6b39c23
Gerrit-PatchSet: 7
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Andrew Wong <aw...@cloudera.com>
Gerrit-Reviewer: Adar Dembo <ad...@cloudera.com>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Mike Percy <mp...@apache.org>
Gerrit-Reviewer: Tidy Bot