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https://issues.apache.org/jira/browse/HDFS-2843?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13194285#comment-13194285
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Suresh Srinivas commented on HDFS-2843:
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I would argue that the information currently in StorageInfo is not storage
specific at all. Current information in StorageInfo is : namespaceID,
layoutVersion, cTime and clusterID. All these are node level information and
are common for all the storages, that a node manages.
If you look at the proposal from 2832, and treat say a datanode as collection
of storages, all the above information is needed only once at the datanode
level and not per storage level.
> Rename protobuf message StorageInfoProto to NodeInfoProto
> ---------------------------------------------------------
>
> Key: HDFS-2843
> URL: https://issues.apache.org/jira/browse/HDFS-2843
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: data-node, name-node
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Attachments: HDFS-2843.patch
>
>
> StorageInfoProto has cTime, layoutVersion, namespaceID and clusterID. This is
> really information of a node that is part of the cluster, such as Namenode,
> Standby/Secondary/Backup/Checkpointer and datanodes. To reflect this, I want
> to rename it as NodeInfoProto from StorageInfoProto.
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