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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1926) Remove references to StorageDirectory from JournalManager interface
Date Sun, 15 May 2011 23:41:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1926?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13033838#comment-13033838
] 

Eli Collins commented on HDFS-1926:
-----------------------------------

Sounds good to me.

Btw the latest two patches attached don't remove the NNStorageListener, wrong patch attached?

> Remove references to StorageDirectory from JournalManager interface
> -------------------------------------------------------------------
>
>                 Key: HDFS-1926
>                 URL: https://issues.apache.org/jira/browse/HDFS-1926
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>         Attachments: HDFS-1926-nolistener.diff, HDFS-1926.diff, HDFS-1926.diff
>
>
> The JournalManager interface introduced by HDFS-1799 has a getStorageDirectory method
which is out of place in a generic interface. This JIRA removed that call by refactoring the
error handling for FSEditLog. Each EditLogFileOutputStream is now a NNStorageListener and
listens for error on it's containing StorageDirectory. If an error occurs from FSImage, the
stream will be aborted. If the error occurs in FSEditLog, the stream will be aborted and NNStorage
will be notified that the StorageDirectory is no longer valid.

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