hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-5232) Protocol changes to transmit StorageUuid
Date Thu, 19 Sep 2013 19:49:54 GMT
Arpit Agarwal created HDFS-5232:

             Summary: Protocol changes to transmit StorageUuid
                 Key: HDFS-5232
                 URL: https://issues.apache.org/jira/browse/HDFS-5232
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: datanode, hdfs-client, namenode
    Affects Versions: Heterogeneous Storage (HDFS-2832)
            Reporter: Arpit Agarwal
            Assignee: Arpit Agarwal

Currently the StorageID is used to identify both the Datanode and the storage. This works
because we treat all storages attached to the Datanode as a single storage unit.

We plan to replace the StorageID with two independent IDs:
# Datanode UUID - this will be a string that uniquely identifies each Datanode in the cluster.
For upgraded clusters, the Datanode UUID will be the StorageID prior to the upgrade.
# Storage UUID - Each storage attached to the datanode will be identified by a UUID.

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

View raw message