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https://issues.apache.org/jira/browse/HDFS-9498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15086055#comment-15086055
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Mingliang Liu commented on HDFS-9498:
-------------------------------------
Thank you [~arpitagarwal] for your insightful comments and commit. Thanks to
[~anu] for his original effort of tracking blocks with future GS, and for code
review.
> Move code that tracks blocks with future generation stamps to
> BlockManagerSafeMode
> ----------------------------------------------------------------------------------
>
> Key: HDFS-9498
> URL: https://issues.apache.org/jira/browse/HDFS-9498
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
> Fix For: 2.9.0
>
> Attachments: HDFS-9498.000.patch, HDFS-9498.001.patch,
> HDFS-9498.002.patch, HDFS-9498.003.patch, HDFS-9498.004.patch
>
>
> [HDFS-4015] counts and reports orphaned blocks
> {{numberOfBytesInFutureBlocks}} in safe mode. It was implemented in
> {{BlockManager}}. Per discussion in [HDFS-9129] which introduces the
> {{BlockManagerSafeMode}}, we can move code that maintaining orphaned blocks
> to this class.
> Leaving safe mode checks blocks with future GS in {{FSNamesystem}}. This code
> can also be moved to {{BlockManagerSafeMode}}.
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