[Master] Make TestSplitLogManager more stable

Author: liyintang

Summary: EXTRA_TOLERANCE_MS was set 200 ms, which caused that unit test unstable in the Jenkins.

Test Plan: run this test 10 times

Reviewers: daviddeng, rshroff

Reviewed By: daviddeng

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1299524

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1591041 13f79535-47bb-0310-9956-ffa450edef68
[master] Make TestUpgradeFromHFileV1ToEncoding stable

Author: elliott

Summary: Made TestUpgradeFromHFileV1ToEncoding spin up fewer region servers, and made the timout longer while writing less data.

Test Plan: bin/test/loop_tests.sh -t TestUpgradeFromHFileV1ToEncoding

Reviewers: daviddeng

Reviewed By: daviddeng

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1300258

Task ID: 4191835

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1591042 13f79535-47bb-0310-9956-ffa450edef68
[HBASE-9704] Catch NPE from TableServers.translateException in batchGet

Author: manukranthk

Summary: batchGet had a bunch of retries and is supposed to move on in case the response from one regionserver was not populated. But in fact it runs into this NullPointerException and ends up quitting the retry.

Test Plan: Test on Puma.

Reviewers: gauravm

Reviewed By: gauravm

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1300627

Task ID: 4237701

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1591043 13f79535-47bb-0310-9956-ffa450edef68
[master] Let TestDuplicateNotifications and TestRegionRebalancing use JUnit4 and mute them

Author: daviddeng

Summary: Since we are not using this, mute them and check later.

Test Plan: No

Reviewers: manukranthk, liyintang, elliot, rshroff, adela, gauravm

Reviewed By: liyintang

CC: hbase-eng@

Differential Revision: https://phabricator.fb.com/D1296706

Task ID: 4219255

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.89-fb@1591044 13f79535-47bb-0310-9956-ffa450edef68