[
https://issues.apache.org/jira/browse/HDFS-8137?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Uma Maheswara Rao G resolved HDFS-8137.
---------------------------------------
Resolution: Fixed
Fix Version/s: HDFS-7285
Hadoop Flags: Reviewed
Thanks a lot, Kai for the reviews!
I have just committed this to branch.
> Send the EC schema to DataNode via EC encoding/recovering command
> -----------------------------------------------------------------
>
> Key: HDFS-8137
> URL: https://issues.apache.org/jira/browse/HDFS-8137
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Uma Maheswara Rao G
> Fix For: HDFS-7285
>
> Attachments: HDFS-8137-0.patch, HDFS-8137-1.patch, HDFS-8137-2.patch
>
>
> Discussed with [~umamaheswararao] and [~vinayrpet], we should also send the
> EC schema to DataNode as well contained in the EC encoding/recovering
> command. The target DataNode will use it to guide the executing of the task.
> Another way would be, DataNode would just request schema actively thru a
> separate RPC call, and as an optimization consideration, DataNode may cache
> schemas to avoid repeatedly asking for the same schema twice.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
