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From "Kihwal Lee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-4477) Secondary namenode may retain old tokens
Date Thu, 11 Apr 2013 19:14:14 GMT

    [ https://issues.apache.org/jira/browse/HDFS-4477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629244#comment-13629244
] 

Kihwal Lee commented on HDFS-4477:
----------------------------------

>there will be much consistency or security issues since they are expired ones. 
Sorry. it should be "there won't be".
                
> Secondary namenode may retain old tokens
> ----------------------------------------
>
>                 Key: HDFS-4477
>                 URL: https://issues.apache.org/jira/browse/HDFS-4477
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
>            Reporter: Kihwal Lee
>            Assignee: Daryn Sharp
>            Priority: Critical
>         Attachments: HDFS-4477.patch, HDFS-4477.patch, HDFS-4477.patch, HDFS-4477.patch
>
>
> Upon inspection of a fsimage created by a secondary namenode, we've discovered it contains
very old tokens. These are probably the ones that were not explicitly canceled.  It may be
related to the optimization done to avoid loading fsimage from scratch every time checkpointing.

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