[HADOOP-4967] Inconsistent state in JVM manager

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.19.1
• Hadoop Flags: Reviewed
• Assignee: Devaraj Das
• Reporter: Amareshwari Sriramadasu
• Created: 31/Dec/08 10:48
• Updated: 08/Jul/09 16:53
• Resolved: 19/Jan/09 18:10

Description

The following is the scenario:
-> TT got a LaunchTaskAction. And It found the slot free. It started the TaskRunner
-> TT received KillJobActtion. It did a runner.kill().
But, runner.kill() didn't remove JVM Runner from jvmIdToRunner , as it is not polulated yet.
It released the slots.
-> TaskRunner thread spawned jvm and populated jvmIdToRunner.
-> The next task getting launched on the slot finds it as busy.