[
https://issues.apache.org/jira/browse/HDFS-7613?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14350029#comment-14350029
]
Walter Su commented on HDFS-7613:
---------------------------------
I finally got what is HDFS-7853 trying to accomplish. So client will get
blockId(blockGroupId) from NN, and write blockId+0, blockId+1,
blockId+2,..,blockId+N to every datanode.
> 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
>
> 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)
