[YARN-7580] ContainersMonitorImpl logged message lacks detail when exceeding memory limits

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.1.0
• Component/s: nodemanager
• Hadoop Flags: Reviewed
• Assignee: Wilfred Spiegelenburg
• Reporter: Wilfred Spiegelenburg
• Created: 29/Nov/17 06:25
• Updated: 26/Feb/20 05:29
• Resolved: 29/Dec/17 21:04

Description

Currently in the RM logs container memory usage for a container that exceeds the memory limit is reported like this:

2016-06-14 09:15:36,694 INFO [AsyncDispatcher event handler] org.apache.hadoop.mapreduce.v2.app.job.impl.TaskAttemptImpl: Diagnostics report from attempt_1464251583966_0932_r_000876_0: Container [pid=134938,containerID=container_1464251583966_0932_01_002237] is running beyond physical memory limits. Current usage: 1.0 GB of 1 GB physical memory used; 1.9 GB of 2.1 GB virtual memory used. Killing container.

Two enhancements as part of this jira:

• make it clearer which limit we exceed
• show exactly how much we exceeded the limit by