[HBASE-16830] RSRpcServices#openRegion() should handle the case where table descriptor is null

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.3.0, 1.2.4, 1.1.8
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 13/Oct/16 22:53
• Updated: 18/Dec/16 21:03
• Resolved: 14/Oct/16 17:50

Description

Over in HBASE-16349, mantonov pointed me to the failed TestClusterId in Jenkins 1.3 build.
I ran the test locally with Java 8 and consistently stumbled over timeout in starting the mini cluster:

2016-10-13 15:41:05,276 INFO  [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=59233] regionserver.RSRpcServices(1620): Open hbase:namespace,,1476398463993.                               7ab1d0b3b7be8b9a7ce9af61c29d5342.
2016-10-13 15:41:05,277 ERROR [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=59233] ipc.RpcServer(2320): Unexpected throwable object
java.lang.NullPointerException
  at org.apache.hadoop.hbase.regionserver.RSRpcServices.openRegion(RSRpcServices.java:1679)
  at org.apache.hadoop.hbase.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:22737)
  at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2270)
  at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:123)
  at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:188)
  at org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:168)

It turned out that htd for hbase:namespace table was null.

Once the NPE is fixed, the test passes.