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https://issues.apache.org/jira/browse/HDFS-9371?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-9371:
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Attachment: (was: HDFS-9371.003.patch)
> Code cleanup for DatanodeManager
> --------------------------------
>
> Key: HDFS-9371
> URL: https://issues.apache.org/jira/browse/HDFS-9371
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Jing Zhao
> Assignee: Jing Zhao
> Attachments: HDFS-9371.000.patch, HDFS-9371.001.patch,
> HDFS-9371.002.patch
>
>
> Some code cleanup for DatanodeManager. The main changes include:
> # make the synchronization of {{datanodeMap}} and
> {{datanodesSoftwareVersions}} consistent
> # remove unnecessary lock in {{handleHeartbeat}}
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