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https://issues.apache.org/jira/browse/HDFS-15288?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17111386#comment-17111386
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Íñigo Goiri commented on HDFS-15288:
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OK, let's keep the 0 to 1 range for consistency; let's add the meaning of 0 and
1 to the xml though.
For the long key name... not sure, to be honest; ideally we could have sub
configuration definitions but not sure how clean that is in the context of
other settings.
> Add Available Space Rack Fault Tolerant BPP
> -------------------------------------------
>
> Key: HDFS-15288
> URL: https://issues.apache.org/jira/browse/HDFS-15288
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HDFS-15288-01.patch, HDFS-15288-02.patch
>
>
> The Present {{AvailableSpaceBlockPlacementPolicy}} extends the Default Block
> Placement policy, which makes it apt for Replicated files. But not very
> efficient for EC files, which by default use.
> {{BlockPlacementPolicyRackFaultTolerant}}. So propose a to add new BPP having
> similar optimization as ASBPP where as keeping the spread of Blocks to max
> racks, i.e as RackFaultTolerantBPP.
> This could extend {{BlockPlacementPolicyRackFaultTolerant}}, rather than the
> {{BlockPlacementPOlicyDefault}} like ASBPP and keep other logics of
> optimization same as ASBPP
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