Jim Brennan created YARN-7678:
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Summary: Logging of container memory stats is missing in 2.8
Key: YARN-7678
URL: https://issues.apache.org/jira/browse/YARN-7678
Project: Hadoop YARN
Issue Type: Improvement
Components: nodemanager
Affects Versions: 3.0.0, 2.8.0
Reporter: Jim Brennan
Assignee: Jim Brennan
YARN-3424 changed logging of memory stats from ContainersMonitorImpl to INFO to
DEBUG.
We have found these log messages to be useful information in Out-of-Memory
situations - they provide detail that helps show the memory profile of the
container over time, which can be helpful in determining root cause.
Here's an example message from YARN-3424:
{noformat}
2015-03-27 09:32:48,905 INFO
org.apache.hadoop.yarn.server.nodemanager.containermanager.monitor.ContainersMonitorImpl:
Memory usage of ProcessTree 9215 for container-id
container_1427462602546_0002_01_000008: 189.8 MB of 1 GB physical memory used;
2.6 GB of 2.1 GB virtual memory used
{noformat}
Propose to change this to use a separate logger for this message, so that we
can enable debug logging for this without enabling all of the other debug
logging for ContainersMonitorImpl.
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