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https://issues.apache.org/jira/browse/YARN-3628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14542988#comment-14542988
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zhihai xu commented on YARN-3628:
---------------------------------
Sorry for the confusion. It is jmx.
The following is empty container metrics shown from the jmx
{code}
{
"name" :
"Hadoop:service=NodeManager,name=ContainerResource_container_1431465632950_0001_01_000005",
"modelerType" : "ContainerResource_container_1431465632950_0001_01_000005"
}
{
"name" :
"Hadoop:service=NodeManager,name=ContainerResource_container_1431465632950_0001_01_000002",
"modelerType" : "ContainerResource_container_1431465632950_0001_01_000002"
}
{code}
Normally the full container metrics will show like this:
{code}
{
"name" :
"Hadoop:service=NodeManager,name=ContainerResource_container_1431465632950_0001_01_000024",
"modelerType" : "ContainerResource_container_1431465632950_0001_01_000024",
"tag.ContainerResource" : "container_1431465632950_0001_01_000024",
"tag.Context" : "container",
"tag.ContainerPid" : "18748",
"tag.Hostname" : "XXXXXXXX",
"PMemUsageNumUsage" : 3,
"PMemUsageAvgMBs" : 71.66666666666667,
"PMemUsageStdevMBs" : 47.42713709821976,
"PMemUsageIMinMBs" : 19.0,
"PMemUsageIMaxMBs" : 111.0,
"PMemUsageMinMBs" : 19.0,
"PMemUsageMaxMBs" : 111.0,
"pMemLimit" : 1024,
"vMemLimit" : 2150,
"vCoreLimit" : 1
}
{code}
> ContainerMetrics should support always-flush mode.
> --------------------------------------------------
>
> Key: YARN-3628
> URL: https://issues.apache.org/jira/browse/YARN-3628
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: zhihai xu
> Assignee: zhihai xu
> Attachments: YARN-3628.000.patch
>
>
> ContainerMetrics should support always-flush mode.
> It will be good to set ContainerMetrics as always-flush mode if
> yarn.nodemanager.container-metrics.period-ms is configured as 0.
> Currently both 0 and -1 mean flush on completion.
> Also the current default value for
> yarn.nodemanager.container-metrics.period-ms is -1 and the default value for
> yarn.nodemanager.container-metrics.enable is true. So the empty content is
> shown for the active container metrics until it is finished.
> The default value for yarn.nodemanager.container-metrics.period-ms should not
> be -1.
> flushOnPeriod is always false if flushPeriodMs is -1,
> the content will only be shown when the container is finished.
> {code}
> if (finished || flushOnPeriod) {
> registry.snapshot(collector.addRecord(registry.info()), all);
> }
> {code}
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