[
https://issues.apache.org/jira/browse/HDFS-7613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14492050#comment-14492050
]
Walter Su commented on HDFS-7613:
---------------------------------
In the 001 patch:
1. The changes of {{BlockPlacementPolicyDefault}}:
1a. {{chooseTargetInOrder(..)}} already commited to trunk.
1b. add ECSchema to arguments list, just like {{storageTypes}}.
2. The changes of {{BlockManager}}. Add a class {{BlockPlacementPolicies}}, so
we can choose between replication policy and EC policy, based on if the file is
EC file.
3. New policy {{BlockPlacementPolicyEC}}
> Block placement policy for erasure coding groups
> ------------------------------------------------
>
> Key: HDFS-7613
> URL: https://issues.apache.org/jira/browse/HDFS-7613
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Zhe Zhang
> Assignee: Walter Su
> Attachments: HDFS-7613.001.patch
>
>
> Blocks in an erasure coding group should be placed in different failure
> domains -- different DataNodes at the minimum, and different racks ideally.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
