[HBASE-12692] NPE from SnapshotManager#stop

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.98.9, 0.99.2, 2.0.0
• Fix Version/s: 1.0.0, 0.94.26, 0.98.9
• Component/s: snapshots
• Hadoop Flags: Reviewed
• Assignee: Ashish Singhi
• Reporter: Ashish Singhi
• Created: 15/Dec/14 14:14
• Updated: 06/Apr/18 17:54
• Resolved: 15/Dec/14 19:28

Description

If there are some files in snapshot dir and snapshot is disabled. Then we will stop master process. As part of this stop got NPE.

Exception in thread "master/host-10-18-40-106/10.18.40.106:16020" java.lang.NullPointerException
	at org.apache.hadoop.hbase.master.snapshot.SnapshotManager.stop(SnapshotManager.java:930)
	at org.apache.hadoop.hbase.procedure.MasterProcedureManagerHost.stop(MasterProcedureManagerHost.java:56)
	at org.apache.hadoop.hbase.master.HMaster.stopServiceThreads(HMaster.java:994)
	at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:1010)
	at java.lang.Thread.run(Thread.java:745)