hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3438) BootstrapStandby should not require a rollEdits on active node
Date Fri, 18 May 2012 23:57:08 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13279346#comment-13279346

Aaron T. Myers commented on HDFS-3438:

+1, the patch looks great. Thanks a lot, Todd.
> BootstrapStandby should not require a rollEdits on active node
> --------------------------------------------------------------
>                 Key: HDFS-3438
>                 URL: https://issues.apache.org/jira/browse/HDFS-3438
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ha
>    Affects Versions: 2.0.0
>            Reporter: Todd Lipcon
>            Assignee: Todd Lipcon
>         Attachments: hdfs-3438.txt
> Currently, BootstrapStandby uses a rollEdits() call on the active NN in order to determine
the most recent checkpoint and transaction ID. However, this means that you cannot bootstrap
a standby when the active NN is in safe mode -- i.e you have to start the whole cluster before
you can bootstrap a new standby. This makes the workflow to convert an existing cluster to
HA more complicated. We should allow BootstrapStandby to work even when the NN is in safe

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


View raw message