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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5774) Serialize CachePool directives in protobuf
Date Mon, 20 Jan 2014 22:32:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13876930#comment-13876930
] 

Colin Patrick McCabe commented on HDFS-5774:
--------------------------------------------

Maybe I'm missing something, but I don't see how making these fields optional improves compatibility.
 We can't construct the cache manager without these fields, and there are no older versions
of the software that didn't have them.

> Serialize CachePool directives in protobuf
> ------------------------------------------
>
>                 Key: HDFS-5774
>                 URL: https://issues.apache.org/jira/browse/HDFS-5774
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Haohui Mai
>            Assignee: Haohui Mai
>         Attachments: HDFS-5774.000.patch, HDFS-5774.001.patch
>
>
> This jira proposes to implement serialize cache pool directives in protobuf.



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