[
https://issues.apache.org/jira/browse/HADOOP-993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12481391
]
Raghu Angadi commented on HADOOP-993:
-------------------------------------
Mainly simplicity. I think this is one of the many features in Namenode that
are useful but not strictly namenode functionality. Namenode is a major
hotspot. May be we could have helper application that provides such features.
Currently namenode will list dead nodes. But is is not persistent across
restarts.
> Namenode does not need to store any data node info persistently.
> ----------------------------------------------------------------
>
> Key: HADOOP-993
> URL: https://issues.apache.org/jira/browse/HADOOP-993
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs
> Reporter: Raghu Angadi
> Assigned To: Sameer Paranjpye
> Attachments: noDatanodesInFsimage.patch
>
>
> Namenode does not need to serialize datanode info. It will map datanode to
> storageID when datanode register.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
