[HADOOP-3881] IPC client doesnt time out if far end handler hangs

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: 1.0.0
• Component/s: ipc
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 31/Jul/08 17:44
• Updated: 18/Jul/14 20:04
• Resolved: 18/Jul/14 20:04

Description

This is what appears to be happening in some changes of mine that (inadventently) blocked JobTracker: if the client can connect to the far end and invoke an operation, the far end has forever to deal with the request: the client blocks too.

Clearly the far end shouldn't do this; its a serious problem to address. but should the client hang? Should it not time out after some specifiable time and signal that the far end isn't processing requests in a timely manner?

(marked as minor as this shouldn't arise in day to day operation. but it should be easy to create a mock object to simulate this, and timeouts are considered useful in an IPC)