[HDFS-415] Unchecked exception thrown inside of BlockReceiver cause some threads hang

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.21.0
• Assignee: Konstantin I Boudnik
• Reporter: Konstantin I Boudnik
• Created: 17/Jun/09 21:40
• Updated: 24/Aug/10 20:48
• Resolved: 10/Jul/09 21:17

Description

One is able to inject all sorts of faults into Hadoop's classes using new fault injection framework (HADOOP-6003).
I've been injecting unchecked exception (RuntimeException) into BlockReceiver.receivePacket() method before any
of write() operations (e.g. line 401, 449, 463, 529) and running some of the existing HDFS tests. The injection of unchecked exceptions causes DataXceiver to die silently and without any traces.

From a debugger run it seems like some threads are being left alive or not notified about the exception.