[HBASE-3261] NPE out of HRS.run at startup when clock is out of sync

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.90.0, 0.92.0
• Hadoop Flags: Reviewed
• Assignee: Jean-Daniel Cryans
• Reporter: Jean-Daniel Cryans
• Created: 22/Nov/10 23:31
• Updated: 20/Nov/15 12:44
• Resolved: 24/Nov/10 18:36

Description

This is what I get when I start a region server that's not properly sync'ed:

Exception in thread "regionserver60020" java.lang.NullPointerException
	at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:603)
	at java.lang.Thread.run(Thread.java:637)

I this case the line was:

hlogRoller.interruptIfNecessary();

I guess we could add a bunch of other null checks.

The end result is the same, the RS dies, but I think it's misleading.