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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3625) FSN#startActiveServices assumes standby services started
Date Mon, 16 Jul 2012 18:40:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13415502#comment-13415502
] 

Todd Lipcon commented on HDFS-3625:
-----------------------------------

+1, thanks for fixing this, Junping! I tried to work on it the other day but the magical one
line kept eluding me. Good work :) Will commit momentarily.
                
> FSN#startActiveServices assumes standby services started 
> ---------------------------------------------------------
>
>                 Key: HDFS-3625
>                 URL: https://issues.apache.org/jira/browse/HDFS-3625
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Todd Lipcon
>            Priority: Blocker
>         Attachments: HDFS-3625.patch, HDFS-3625.patch
>
>
> TestBackupNode#testCheckpointNode fails because the following code in FSN#startActiveServices
NPEs (resulting in a System.exit) because editLogTailer is set when starting standby services
and if ha is not enabled we go directly to the active state. Looks like it should be wrapped
with an haEnabled check.
> {code}
> LOG.info("Catching up to latest edits from old active before " +
>    "taking over writer role in edits logs.");
> editLogTailer.catchupDuringFailover();
> {code}

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