[HADOOP-3422] Ganglia counter metrics are all reported with the metric name "value", so the counter values can not be seen

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.17.2, 0.18.0, 0.18.1, 0.18.2
• Fix Version/s: 0.20.0
• Component/s: metrics
• Hadoop Flags: Incompatible change, Reviewed
• Release Note: Changed names of ganglia metrics to avoid conflicts and to better identify source function.
• Assignee: Michael Stack
• Reporter: Jason
• Created: 20/May/08 17:35
• Updated: 02/May/13 02:29
• Resolved: 25/Nov/08 22:41

Description

The JobInProgress class reports all metrics with the name "value". The FileMetrics class puts all of the tags into the name when reporting the individual values, but the Ganglia Context does not put the tags into the name..

This patch modifies the context to build names for the counter metrics out of the tag values. This enables the user to see the indivdual counter values with the ganglia web tool, on a per job basis

Issue Links

• is depended upon by: HADOOP-4675 Current Ganglia metrics implementation is incompatible with Ganglia 3.1
• is duplicated by: HADOOP-4137 NPE in GangliaContext.xdr_string (GangliaContext.java:195)
• is related to: HADOOP-4137 NPE in GangliaContext.xdr_string (GangliaContext.java:195)