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https://issues.apache.org/jira/browse/HDFS-636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12758967#action_12758967
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Tsz Wo (Nicholas), SZE commented on HDFS-636:
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The append branch still has problems: test-patch fails on
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BROKEN:
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> SafeMode should count only complete blocks.
> -------------------------------------------
>
> Key: HDFS-636
> URL: https://issues.apache.org/jira/browse/HDFS-636
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: Append Branch
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Fix For: Append Branch
>
> Attachments: completeBlockTotal.patch
>
>
> During start up the name-node is in safe mode and is counting blocks reported
> by data-nodes. When the number of minimally replicated blocks reaches the
> configured threshold the name-node leaves safe mode. Currently all blocks are
> counted towards the threshold including the ones that are under construction.
> The under-construction blocks should be excluded from the count, because they
> need to be recovered, which may take long time (lease expires in 1 hour by
> default). Also the recovery may result in deleting those blocks so counting
> them in the blocks total is incorrect.
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