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https://issues.apache.org/jira/browse/HDFS-11277?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15783160#comment-15783160
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Arpit Agarwal commented on HDFS-11277:
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[~manju_hadoop], there shouldn't be multiple FsVolumeImpl objects for the same
volume. So the object identity check is fine.
> Implement equals and hashcode in FsVolumeSpi implementations
> ------------------------------------------------------------
>
> Key: HDFS-11277
> URL: https://issues.apache.org/jira/browse/HDFS-11277
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode
> Reporter: Manjunath Anand
>
> Certain of the implementations of FsVolumeSpi say for eg:- FsVolumeImpl can
> implement equals and hashcode. This is to avoid object identity check during
> disk check scheduling in ThrottledAsyncChecker and instead use other means of
> checking whether a diskcheck is already in progress or not for FsVolumeImpl
> object.
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