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https://issues.apache.org/jira/browse/HADOOP-993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12576019#action_12576019
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Edward Yoon commented on HADOOP-993:
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>> "in case of a misconfiguration of a datanode, namenode can tell which
>> datanode "should" have a certain storageid" - You might be right here. But
>> from my understanding, we have never had exploited this particular feature
>> on our kryptonite cluster till now.
Is kryptonite a cluster patronized by yahoo employee ?
> 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 Core
> Issue Type: Improvement
> Components: dfs
> Reporter: Raghu Angadi
> Assignee: Sameer Paranjpye
> Attachments: noDatanodesInFsimage.patch
>
>
> Namenode does not need to serialize datanode info. It will map datanode to
> storageID when datanode register.
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