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https://issues.apache.org/jira/browse/HDFS-14546?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17006058#comment-17006058
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Amithsha edited comment on HDFS-14546 at 12/31/19 11:27 AM:
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Ya, we can add AvailableSpaceBlockPlacementPolicy, but I thought
AvailableSpaceBlockPlacementPolicy is mostly on choosing volumes since it's not
on node and rack. I have skipped this.
was (Author: amithsha):
Ya, we can add AvailableSpaceBlockPlacementPolicy, but I thought
AvailableSpaceBlockPlacementPolicy is mostly on choosing volumes since it's not
on node and rack.
> Document block placement policies
> ---------------------------------
>
> Key: HDFS-14546
> URL: https://issues.apache.org/jira/browse/HDFS-14546
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Íñigo Goiri
> Assignee: Amithsha
> Priority: Major
> Labels: documentation
> Attachments: HDFS-14546-01.patch, HDFS-14546-02.patch,
> HDFS-14546-03.patch, HDFS-14546-04.patch, HDFS-14546-05.patch,
> HDFS-14546-06.patch, HDFS-14546-07.patch, HDFS-14546-08.patch,
> HdfsDesign.patch
>
>
> Currently, all the documentation refers to the default block placement policy.
> However, over time there have been new policies:
> * BlockPlacementPolicyRackFaultTolerant (HDFS-7891)
> * BlockPlacementPolicyWithNodeGroup (HDFS-3601)
> * BlockPlacementPolicyWithUpgradeDomain (HDFS-9006)
> We should update the documentation to refer to them explaining their
> particularities and probably how to setup each one of them.
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