[YARN-2125] ProportionalCapacityPreemptionPolicy should only log CSV when debug enabled

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.5.0
• Component/s: resourcemanager, scheduler
• Target Version/s: 2.5.0
• Hadoop Flags: Reviewed
• Assignee: Wangda Tan
• Reporter: Wangda Tan
• Created: 05/Jun/14 07:58
• Updated: 12/May/16 18:30
• Resolved: 11/Jun/14 18:33

Description

Currently, logToCSV() will be output using LOG.info() in ProportionalCapacityPreemptionPolicy. Which will generate non-human-readable texts in resource manager's log every several seconds, like

...
2014-06-05 15:57:07,603 INFO org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy:  QUEUESTATE: 1401955027603, a1, 4096, 3, 2048, 2, 4096, 3, 4096, 3, 0, 0, 0, 0, b1, 3072, 2, 1024, 1, 3072, 2, 3072, 2, 0, 0, 0, 0, b2, 3072, 2, 1024, 1, 3072, 2, 3072, 2, 0, 0, 0, 0
2014-06-05 15:57:10,603 INFO org.apache.hadoop.yarn.server.resourcemanager.monitor.capacity.ProportionalCapacityPreemptionPolicy:  QUEUESTATE: 1401955030603, a1, 4096, 3, 2048, 2, 4096, 3, 4096, 3, 0, 0, 0, 0, b1, 3072, 2, 1024, 1, 3072, 2, 3072, 2, 0, 0, 0, 0, b2, 3072, 2, 1024, 1, 3072, 2, 3072, 2, 0, 0, 0, 0
...

It's better to make it output when debug enabled.