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From "Robert Joseph Evans (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (HDFS-3809) Make BKJM use protobufs for all serialization with ZK
Date Tue, 30 Oct 2012 17:34:13 GMT

     [ https://issues.apache.org/jira/browse/HDFS-3809?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Joseph Evans reopened HDFS-3809:
---------------------------------------


Branch-2 is failing with 
{noformat}
main:
     [exec] bkjournal.proto:30:12: "NamespaceInfoProto" is not defined.
{noformat}

after this was merged in.  Please either fix it or revert the change.
                
> Make BKJM use protobufs for all serialization with ZK
> -----------------------------------------------------
>
>                 Key: HDFS-3809
>                 URL: https://issues.apache.org/jira/browse/HDFS-3809
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: name-node
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Ivan Kelly
>            Assignee: Ivan Kelly
>             Fix For: 3.0.0, 2.0.3-alpha
>
>         Attachments: 0004-HDFS-3809-for-branch-2.patch, HDFS-3809.diff, HDFS-3809.diff,
HDFS-3809.diff
>
>
> HDFS uses protobufs for serialization in many places. Protobufs allow fields to be added
without breaking bc or requiring new parsing code to be written. For this reason, we should
use them in BKJM also.

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