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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HDFS-5314) Do not expose CachePool type in AddCachePoolOp
Date Mon, 07 Oct 2013 00:45:42 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Work on HDFS-5314 started by Colin Patrick McCabe.

> Do not expose CachePool type in AddCachePoolOp
> ----------------------------------------------
>
>                 Key: HDFS-5314
>                 URL: https://issues.apache.org/jira/browse/HDFS-5314
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: HDFS-4949
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HDFS-5314-caching.001.patch
>
>
> {{CachePool}} is an internal type which should not be exposed or used in the {{FSEditLog}}.
 Because {{CachePool}} is mutable, storing a reference to it in an edit log operation could
lead to the edit log operation changing as a result of the {{CachePool}} object being changed.
 Instead, we should store {{CachePoolInfo}}.



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