hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "M. C. Srivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2064) Warm HA NameNode going Hot
Date Tue, 02 Aug 2011 15:15:28 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13076260#comment-13076260
] 

M. C. Srivas commented on HDFS-2064:
------------------------------------

@konstantin: I really liked the simplicity of this design. Nice work!

This might be my own lack of knowledge: is the SBN in charge of the fsimage file? If it starts
much later than the NN, does it fetch both the fsimage file and the edits-log from the NN?


> 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.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message