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https://issues.apache.org/jira/browse/HDFS-12894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16279321#comment-16279321
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Virajith Jalaparti commented on HDFS-12894:
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Trivial patch attached. /cc [~elgoiri], [~chris.douglas]
> [READ] Skip setting block count of ProvidedDatanodeStorageInfo on DN
> registration update
> ----------------------------------------------------------------------------------------
>
> Key: HDFS-12894
> URL: https://issues.apache.org/jira/browse/HDFS-12894
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Virajith Jalaparti
> Assignee: Virajith Jalaparti
> Attachments: HDFS-12894-HDFS-9806.001.patch
>
>
> As the {{ProvidedDatanodeStorageInfo}} is shared across multiple Datanodes,
> it's block count shouldn't be set to 0 (in
> {{DatanodeDescriptor.updateRegInfo}}) when any one Datanode's registration
> info is updated. This prevents {{processFirstBlockReport}} from being called
> multiple times for {{ProvidedDatanodeStorageInfo}}.
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