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Date: Sat, 10 Nov 2012 01:23:12 +0000 (UTC)
From: "Kirk True (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-4848) Expose black-listed directories
 via JMX
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    [ https://issues.apache.org/jira/browse/CASSANDRA-4848?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13494490#comment-13494490 ] 

Kirk True commented on CASSANDRA-4848:
--------------------------------------

Added a BlacklistedDirectoriesMBean that allows for retrieving the set of unreadable and unwritable directories.
                
> Expose black-listed directories via JMX
> ---------------------------------------
>
>                 Key: CASSANDRA-4848
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4848
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 1.2.0 beta 1
>            Reporter: Kirk True
>            Assignee: Kirk True
>            Priority: Minor
>              Labels: lhf
>             Fix For: 1.2.0 rc1
>
>         Attachments: trunk-4848.txt
>
>
> JBOD support included failure modes (CASSANDRA-2118) that insert directories on bad disks to the {{BlacklistedDirectories}} class. However, it doesn't appear that the list of directories is exposed to administrators via JMX or other means. So unless they're scouring the logs or being notified at the OS level, they will remain unaware of the issue.

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