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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8728) Erasure coding: revisit and simplify BlockInfoStriped and INodeFile
Date Tue, 14 Jul 2015 06:47:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14625927#comment-14625927
] 

Kai Zheng commented on HDFS-8728:
---------------------------------

Thanks for the great work here! About the schema loader related comments:
bq.SchemaLoader, is this class used anywhere? I didn't see any usages.
Yes it's not used in current codes. There were some discussion that we may not need an XML
schema file and also, support multiple configurable schemas was left for follow-on stages,
the reference codes had been removed but remaining it. We'll resume related discussion and
then can decide the schema loader should be also removed or not finally.
bq. SchemaLoader should also be made a static nested class, e.g. SchemaLoader.Loader, since
there's no state.
Sounds good. When we can decide it will be needed anyway after follow-on discussion, we can
revisit and improve it as suggested.

> Erasure coding: revisit and simplify BlockInfoStriped and INodeFile
> -------------------------------------------------------------------
>
>                 Key: HDFS-8728
>                 URL: https://issues.apache.org/jira/browse/HDFS-8728
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Zhe Zhang
>            Assignee: Zhe Zhang
>         Attachments: HDFS-8728-HDFS-7285.00.patch, HDFS-8728-HDFS-7285.01.patch, HDFS-8728.00.patch,
HDFS-8728.01.patch, HDFS-8728.02.patch, Merge-1-codec.patch, Merge-2-ecZones.patch, Merge-3-blockInfo.patch,
Merge-4-blockmanagement.patch, Merge-5-blockPlacementPolicies.patch, Merge-6-locatedStripedBlock.patch,
Merge-7-replicationMonitor.patch, Merge-8-inodeFile.patch
>
>




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