[MAPREDUCE-3162] Separate application-init and container-init event types in NM's ApplicationImpl FSM

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: mrv2, nodemanager
• Target Version/s: 0.23.0
• Hadoop Flags: Reviewed
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 10/Oct/11 22:55
• Updated: 15/Nov/11 00:49
• Resolved: 19/Oct/11 06:43

Description

Currently, the ApplicationImpl receives an INIT_APPLICATION event on every container initialization. Only on the first one does it really mean to init the application, whereas all subsequent events are for specific containers. This JIRA is to separate the events into INIT_APPLICATION, sent once and only once per application, and INIT_CONTAINER, which is sent for every container. The first container sends INIT_APPLICATION followed by INIT_CONTAINER.

Issue Links

• is blocked by: MAPREDUCE-3161 Improve javadoc and fix some typos in MR2 code