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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1365) HDFS federation: propose ClusterID and BlockPoolID format
Date Sun, 05 Sep 2010 00:36:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12906313#action_12906313

dhruba borthakur commented on HDFS-1365:

The blockPoolId identifies a storage block pool and a namespace id identifies a namespace.
I can understand that. c In phase 1, a hdfs.format command allocates a new blockpoolId and
a namespace id. these will be stored in the namenode's version file?

can u pl explain what a clusterId is needed for? Thanks.

> HDFS federation: propose ClusterID and BlockPoolID format
> ---------------------------------------------------------
>                 Key: HDFS-1365
>                 URL: https://issues.apache.org/jira/browse/HDFS-1365
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Tanping Wang
>            Assignee: Tanping Wang
>             Fix For: Federation Branch

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