[YARN-2730] DefaultContainerExecutor runs only one localizer at a time

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.4.0
• Fix Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: Siqi Li
• Reporter: Siqi Li
• Created: 22/Oct/14 23:45
• Updated: 01/Dec/14 03:08
• Resolved: 03/Nov/14 21:41

Description

We are seeing that when one of the localizerRunner stuck, the rest of the localizerRunners are blocked. We should remove the synchronized modifier.
The synchronized modifier appears to have been added by https://issues.apache.org/jira/browse/MAPREDUCE-3537
It could be removed if Localizer doesn't depend on current directory

Issue Links

• relates to: YARN-2714 Localizer thread might stuck if NM is OOM