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https://issues.apache.org/jira/browse/HDDS-3775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ke-Yi Sung reassigned HDDS-3775:
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Assignee: Ke-Yi Sung
> Add documentation for flame graph
> ----------------------------------
>
> Key: HDDS-3775
> URL: https://issues.apache.org/jira/browse/HDDS-3775
> Project: Hadoop Distributed Data Store
> Issue Type: Task
> Reporter: Wei-Chiu Chuang
> Assignee: Ke-Yi Sung
> Priority: Major
>
> HDDS-1116 added flame graph but looks like there's no documentation to enable
> it.
> To enable it,
> add configuration hdds.profiler.endpoint.enabled = true to ozone-site.xml
> download the profiler from
> https://github.com/jvm-profiling-tools/async-profiler to a local directory,
> say /tmp and start the DataNode with java system property
> -Dasync.profiler.home=/tmp or environment variable $ASYNC_PROFILER_HOME
> and then go to the datanode servlet, say dn1:9883/prof to see the graph.
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