[
https://issues.apache.org/jira/browse/MAPREDUCE-1837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12874775#action_12874775
]
Rodrigo Schmidt commented on MAPREDUCE-1837:
--------------------------------------------
I'm looking forward to this.
> Raid should store the metadata in HDFS
> --------------------------------------
>
> Key: MAPREDUCE-1837
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1837
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/raid
> Affects Versions: 0.22.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
>
> Currently if you change the stripe length in the raid policy. The existing
> raided files cannot be recovered.
> Also in the future if we want to upgrade to a better erasure code such as
> Reed-Solomon or LDPC and change the policy for that.
> The same problem will happen. We can avoid this problem if we store the
> information in a metadata file.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
