[HBASE-15114] NPE when IPC server ByteBuffer reservoir is turned off

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.0, 1.3.0, 0.98.18, 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Enis Soztutar
• Reporter: Enis Soztutar
• Created: 14/Jan/16 23:56
• Updated: 10/Feb/16 17:20
• Resolved: 16/Jan/16 01:02

Description

I was testing something else, and discovered that if we turn off the ipc out-buffer reservoir, we are getting NPEs after HBASE-14942.

2016-01-14 15:29:35,865 WARN  [PriorityRpcServer.handler=10,queue=0,port=16020] ipc.RpcServer: PriorityRpcServer.handler=10,queue=0,port=16020: caught: java.lang.NullPointerException
        at org.apache.hadoop.hbase.ipc.RpcServer$Call.done(RpcServer.java:358)
        at org.apache.hadoop.hbase.ipc.RpcServer$Responder.processResponse(RpcServer.java:1159)
        at org.apache.hadoop.hbase.ipc.RpcServer$Responder.doRespond(RpcServer.java:1209)
        at org.apache.hadoop.hbase.ipc.RpcServer$Call.sendResponseIfReady(RpcServer.java:574)
        at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:135)
        at org.apache.hadoop.hbase.ipc.RpcExecutor.consumerLoop(RpcExecutor.java:133)
        at org.apache.hadoop.hbase.ipc.RpcExecutor$1.run(RpcExecutor.java:108)
        at java.lang.Thread.run(Thread.java:745)