hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2591) HA: MiniDFSCluster support to mix and match federation with HA
Date Sun, 27 Nov 2011 23:30:40 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2591?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Todd Lipcon updated HDFS-2591:
------------------------------

    Attachment: hdfs-2591-v2.txt

v2 patch fixes a number of issues discovered trying to build HA test cases on top of this.
In particular, it has code to set up shared edits directories (to be enabled by HDFS-1971),
as well as initialize the SBNN by copying one of the formatted namedirs from the active NN.
(otherwise the two NNs would have different nsids/bpids and not be able to failover).
                
> HA: MiniDFSCluster support to mix and match federation with HA
> --------------------------------------------------------------
>
>                 Key: HDFS-2591
>                 URL: https://issues.apache.org/jira/browse/HDFS-2591
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, test
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-2591-v2.txt, hdfs-2591.txt
>
>
> Right now the MiniDFS builder is somewhat inflexible - it just takes a "numNameNodes"
parameter, which is used to specify federated nameservices. In order to add HA support, we
need to be able to be more specific when configuring the NNs -- eg to test the case where
there is one nameservice that is HA and another which is not.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message