[AMBARI-3178] Incorrect HDFS Garbage Collection Time on Heatmap

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.4.1
• Fix Version/s: 1.4.1
• Component/s: ambari-server
• Assignee: Siddharth Wagle
• Reporter: Siddharth Wagle
• Created: 10/Sep/13 21:55
• Updated: 10/Sep/13 22:00
• Resolved: 10/Sep/13 22:00

Description

Precondition: hadoop is installed with default settings.
Steps:
1. Go to "Heatmaps" page.
2. Select "HDFS Garbage Collection Time" metric
Result:
Random hosts indicate large HDFS Garbage Collection Time(more than 1d).
JMX value of GcTimeMillis is normal.

API call:

http://<ambari-server-host>:8080/api/v1/clusters/c1/services/HDFS/components/DATANODE?fields=host_components/metrics/jvm/gcTimeMillis&_=1378849540894