[HADOOP-11295] RPC Server Reader thread can't shutdown if RPCCallQueue is full

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.1, 2.7.0, 3.0.0-alpha1
• Labels: 2.6.1-candidate
• Hadoop Flags: Reviewed
• Assignee: Ming Ma
• Reporter: Ming Ma
• Created: 11/Nov/14 06:50
• Updated: 30/Aug/16 01:31
• Resolved: 17/Feb/15 23:17

Description

If RPC server is asked to stop when RPCCallQueue is full, reader.join() will just wait there. That is because

1. The reader thread is blocked on callQueue.put(call);.
2. When RPC server is asked to stop, it will interrupt all handler threads and thus no threads will drain the callQueue.

Issue Links

• incorporates: HADOOP-12440 TestRPC#testRPCServerShutdown did not produce the desired thread states before shutting down