Xiaolin Ha created HBASE-22424:
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Summary: Interactions in RSGroup test classes will cause
TestRSGroupsAdmin2.testMoveServersAndTables and
TestRSGroupsBalance.testGroupBalance flaky
Key: HBASE-22424
URL: https://issues.apache.org/jira/browse/HBASE-22424
Project: HBase
Issue Type: Bug
Components: rsgroup
Affects Versions: 2.2.0
Reporter: Xiaolin Ha
Assignee: Xiaolin Ha
When running rsgroup test class folder to run all the UTs together,
TestRSGroupsAdmin2.testMoveServersAndTables and
TestRSGroupsBalance.testGroupBalance will flaky.
Because TestRSGroupsAdmin1, TestRSGroupsAdmin2 and TestRSGroupsBalance are all
extends TestRSGroupsBase, which has a static variable INIT, controlling the
initialize of 'master 'group and the number of rs in 'default' rsgroup.
Output errors of TestRSGroupsBalance.testGroupBalance is shown in HBASE-22420,
and TestRSGroupsAdmin2.testMoveServersAndTables will encounter NPE in
```rsGroupAdmin.getRSGroupInfo("master").containsServer(server.getAddress())```
because `master` group has not been added.
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