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https://issues.apache.org/jira/browse/HDFS-11740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Weiwei Yang resolved HDFS-11740.
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Resolution: Later
Will revisit this if necessary in feature.
> Ozone: Differentiate time interval for different DatanodeStateMachine state
> tasks
> ---------------------------------------------------------------------------------
>
> Key: HDFS-11740
> URL: https://issues.apache.org/jira/browse/HDFS-11740
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Attachments: HDFS-11740-HDFS-7240.001.patch,
> HDFS-11740-HDFS-7240.002.patch, HDFS-11740-HDFS-7240.003.patch,
> statemachine_1.png, statemachine_2.png
>
>
> Currently datanode state machine transitioned between tasks in a fixed time
> interval, defined by {{ScmConfigKeys#OZONE_SCM_HEARTBEAT_INTERVAL_SECONDS}},
> the default value is 30s. Once datanode is started, it will need 90s before
> transited to {{Heartbeat}} state, such a long lag is not necessary. Propose
> to improve the logic of time interval handling, it seems only the heartbeat
> task needs to be scheduled in {{OZONE_SCM_HEARTBEAT_INTERVAL_SECONDS}}
> interval, rest should be done without any lagging.
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