[
https://issues.apache.org/jira/browse/HDFS-7866?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493720#comment-14493720
]
Xinwei Qin commented on HDFS-7866:
-----------------------------------
Hi, [~drankye]
{code}
+ /**
+ * TODO: HDFS-7859 persist into NameNode
+ * load persistent schemas from image and editlog, which is done only once
+ * during NameNode startup. This can be done here or in a separate method.
+ */
{code}
These annotation can be removed. Now loading persistent schemas from fsimage
and editlog is done in {{loadECSchemas()}} or {{loadState()}} method and these
methods are called during NameNode startup.
> Erasure coding: NameNode manages EC schemas
> -------------------------------------------
>
> Key: HDFS-7866
> URL: https://issues.apache.org/jira/browse/HDFS-7866
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Kai Zheng
> Assignee: Kai Zheng
> Attachments: HDFS-7866-v1.patch, HDFS-7866-v2.patch
>
>
> This is to extend NameNode to load, list and sync predefine EC schemas in
> authorized and controlled approach. The provided facilities will be used to
> implement DFSAdmin commands so admin can list available EC schemas, then
> could choose some of them for target EC zones.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
