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Posted to hdfs-issues@hadoop.apache.org by "Dennis Oberhoff (JIRA)" <ji...@apache.org> on 2011/08/02 12:04:28 UTC

[jira] [Updated] (HDFS-2064) Warm HA NameNode going Hot

     [ https://issues.apache.org/jira/browse/HDFS-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dennis Oberhoff updated HDFS-2064:
----------------------------------

    Priority: Blocker  (was: Major)

> Warm HA NameNode going Hot
> --------------------------
>
>                 Key: HDFS-2064
>                 URL: https://issues.apache.org/jira/browse/HDFS-2064
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: name-node
>    Affects Versions: 0.22.0
>            Reporter: Konstantin Shvachko
>            Assignee: Konstantin Shvachko
>            Priority: Blocker
>         Attachments: WarmHA-GoingHot.pdf, failover-v-0.22.patch
>
>
> This is the design for automatic hot HA for HDFS NameNode. It involves use of HA software and LoadReplicator - external to Hadoop components, which substantially simplify the architecture by separating HA- from Hadoop-specific problems. Without the external components it provides warm standby with manual failover.

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