[HBASE-21105] TestHBaseFsck failing in branch-1, branch-1.4, branch-1.3 with NPE

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.5.0, 1.3.3, 1.4.7
• Component/s: hbck, test
• Assignee: Vishal Khandelwal
• Reporter: Sean Busbey
• Created: 23/Aug/18 13:48
• Updated: 02/Oct/18 16:41
• Resolved: 02/Oct/18 16:41

Description

TestHBaseFsck in the mentioned branches has two tests that rely on TestEndToEndSplitTransaction for blocking in the same way TestTableResource used to before HBASE-21076.

Both tests appear to specifically be testing that something happens after a split, so we'll need a solution that removes the cross-test dependency but still allows for "wait until this split has finished"

example failure from branch-1

java.lang.NullPointerException
	at org.apache.hadoop.hbase.util.TestHBaseFsck.testSplitDaughtersNotInMeta(TestHBaseFsck.java:1985)

java.lang.NullPointerException
	at org.apache.hadoop.hbase.util.TestHBaseFsck.testValidLingeringSplitParent(TestHBaseFsck.java:1934)

Issue Links

• is broken by: HBASE-20940 HStore.cansplit should not allow split to happen if it has references
• is broken by: HBASE-7777 HBCK check for lingering split parents should check for child regions