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https://issues.apache.org/jira/browse/AMBARI-5607?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007312#comment-14007312
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Mahadev konar commented on AMBARI-5607:
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Tried it on latest 1.6.0 got a 35-40 sedconds the api response time. It shows
up correctly on the latest 1.6.0 build and within a very reasonable time. Not
sure why you are seeing 2-3 mins delay.
Is a GCE cluster. I tried running some smoke tests and then running:
http://hostname:8080/api/v1/clusters/test/services/YARN/components/NODEMANAGER?fields=host_components/metrics/yarn
The allocatedcontainers updates within 30-40 seconds.
> Yarn Nodemanager Metrics only update every few minutes
> ------------------------------------------------------
>
> Key: AMBARI-5607
> URL: https://issues.apache.org/jira/browse/AMBARI-5607
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 1.5.1
> Environment: sles11sp1
> Reporter: Michael Harp
> Assignee: Dmytro Sen
> Fix For: 1.6.0
>
>
> Yarn Nodemanager Metrics take far too long between updates.
> To demonstrate:
> Run Terasort or anything that runs mapreduce:
> {code}
> hdfs dfs -mkdir -p benchmarks/terasort
> hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar teragen
> -Dmapred.map.tasks=72 -Dmapred.reduce.tasks=36 1000000
> benchmarks/terasort/input
> hadoop jar /usr/lib/hadoop-mapreduce/hadoop-mapreduce-examples.jar terasort
> -Dmapred.map.tasks=72 -Dmapred.reduce.tasks=36 benchmarks/terasort/input
> benchmarks/terasort/output
> hdfs dfs -rm -R -skipTrash benchmarks/terasort
> {code}
> Then repeatedly probe the API at:
> {noformat}https://<server>:8081/api/v1/clusters/c1/services/YARN/components/NODEMANAGER?fields=host_components/metrics/yarn{noformat}
> It usually takes 2-3 minutes to see the metrics update, very repeatable.
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