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Ship it!




Ship It!

- Aravindan Vijayan


On March 1, 2016, 5:28 p.m., Sid Wagle wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/44213/
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> 
> (Updated March 1, 2016, 5:28 p.m.)
> 
> 
> Review request for Ambari, Aravindan Vijayan, Dmytro Sen, and Sumit Mohanty.
> 
> 
> Bugs: AMBARI-15250
>     https://issues.apache.org/jira/browse/AMBARI-15250
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Found out that Ganglia added the processName in JVM metrics to make this 
> distinction::
> 
> org.apache.hadoop.metrics.ganglia.GangliaContext#emitRecord
> 
> {code}
> // Setup so that the records have the proper leader names so they are
>     // unambiguous at the ganglia level, and this prevents a lot of rework
>     StringBuilder sb = new StringBuilder();
>     sb.append(contextName);
>     sb.append('.');
> 
>     if (contextName.equals("jvm") && outRec.getTag("processName") != null) {
>       sb.append(outRec.getTag("processName"));
>       sb.append('.');
>     }
> {code}
> 
> This is missing from our Sink which means some metrics do not have unique 
> names and will collide. _Affects HBase only_
> 
> 
> Diffs
> -----
> 
>   
> ambari-metrics/ambari-metrics-hadoop-sink/src/main/java/org/apache/hadoop/metrics2/sink/timeline/HadoopTimelineMetricsSink.java
>  6da9257 
> 
> Diff: https://reviews.apache.org/r/44213/diff/
> 
> 
> Testing
> -------
> 
> Manually verified metric names for JVM:
> 
> | jvm.Master.JvmMetrics.GcCount            |
> | jvm.Master.JvmMetrics.GcCountConcurrentMarkSweep |
> | jvm.RegionServer.JvmMetrics.GcCountParNew |
> | jvm.RegionServer.JvmMetrics.GcTimeMillis |
> 
> 
> Thanks,
> 
> Sid Wagle
> 
>

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