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https://issues.apache.org/jira/browse/HDFS-9371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15057076#comment-15057076
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Jing Zhao commented on HDFS-9371:
---------------------------------
The javac warning is about {{BlockManager#setBlockToken}} which has been
touched by the patch. The failed unit test is also unrelated.
> 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, HDFS-9371.003.patch, HDFS-9371.004.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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