[HBASE-19499] RegionMover#stripMaster in RegionMover needs to handle HBASE-18511 gracefully

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Bug
• Affects Version/s: 2.0.0
• Assignee: Unassigned
• Reporter: Esteban Gutierrez
• Created: 12/Dec/17 22:57
• Updated: 01/Aug/18 06:22
• Resolved: 20/Dec/17 21:11

Description

Probably this is the first of few issues found during some tests with RegionMover. After HBASE-13014 we ship the new RegionMover tool but it currently assumes that master will be hosting regions so it attempts to remove master from the list and that causes an issue similar to this:

17/12/12 11:01:06 WARN util.RegionMover: Could not remove master from list of RS
java.lang.Exception: Server host1.example.com:22001 is not in list of online servers(Offline/Incorrect)
	at org.apache.hadoop.hbase.util.RegionMover.stripServer(RegionMover.java:818)
	at org.apache.hadoop.hbase.util.RegionMover.stripMaster(RegionMover.java:757)
	at org.apache.hadoop.hbase.util.RegionMover.access$1800(RegionMover.java:78)
	at org.apache.hadoop.hbase.util.RegionMover$Unload.call(RegionMover.java:339)
	at org.apache.hadoop.hbase.util.RegionMover$Unload.call(RegionMover.java:314)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

Basicaly