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Posted to hdfs-issues@hadoop.apache.org by "Hanisha Koneru (JIRA)" <ji...@apache.org> on 2018/06/11 19:19:00 UTC
[jira] [Reopened] (HDDS-97) Create Version File in Datanode
[ https://issues.apache.org/jira/browse/HDDS-97?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hanisha Koneru reopened HDDS-97:
--------------------------------
Instead of creating Version File per SCM, we will have Version File per disk. New Layout is:
*<<dfs.datanode.dir>>/hdds/VERSION*
> Create Version File in Datanode
> -------------------------------
>
> Key: HDDS-97
> URL: https://issues.apache.org/jira/browse/HDDS-97
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
> Fix For: 0.2.1
>
> Attachments: HDDS-97-HDDS-48.00.patch, HDDS-97-HDDS-48.01.patch, HDDS-97-HDDS-48.02.patch, HDDS-97-HDDS-48.03.patch, HDDS-97-HDDS-48.04.patch
>
>
> Create a versionFile in dfs.datanode.dir/hdds/ path.
> The content of the versionFile:
> # scmUuid
> # CTime
> # layOutVersion
> When datanodes makes a request for SCMVersion, in this response we send scmUuid.
> With this response, we should be able to create version file on the datanode.
>
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