[HADOOP-9674] RPC#Server#start does not block until server is fully initialized and listening

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 2.3.0, 3.0.0-alpha1
• Component/s: ipc
• Assignee: Chris Nauroth
• Reporter: Chris Nauroth
• Created: 27/Jun/13 04:38
• Updated: 12/May/16 18:21
• Resolved: 30/Jun/13 17:36

Description

This problem was originally mentioned in discussion on HADOOP-8980. When calling RPC#Server#start, initialization of the server's internal Listener and Reader threads happens in the background. This initialization is not guaranteed to complete by the time the caller returns from RPC#Server#start. This may be misleading to a caller that expects the server has been fully initialized. This problem sometimes manifests as a test failure in TestRPC#testStopsAllThreads. This test looks at the stack frames of all running threads, expecting to find the Listener and Reader threads, but sometimes it doesn't find them.

Issue Links

• relates to: HADOOP-8980 TestRPC and TestSaslRPC fail on Windows