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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1549) All remaining UTF8 data structures in HDFS code should be removed
Date Thu, 17 Apr 2008 19:27:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1549?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12590172#action_12590172
] 

Konstantin Shvachko commented on HADOOP-1549:
---------------------------------------------

I agree we should not use SuppressWarnings, we should define serialVersionUID instead but
in a different issue.
A more serious problem here is that the patch will change the format of the image, and the
consequences are not clear.
I mean that we need to know what are the changes in the image/edits file sizes, and the name-node
startup time.
So I recommend just to remove UTF8 for everything but the storage classes, like Storage, FSImage,
FSEditLog, DataStorage.

> All remaining UTF8 data structures in HDFS code should be removed
> -----------------------------------------------------------------
>
>                 Key: HADOOP-1549
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1549
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: dhruba borthakur
>            Assignee: Edward J. Yoon
>             Fix For: 0.18.0
>
>         Attachments: 1549.patch
>
>
> The UTF8 data structure is deprecated. HADOOP-1283 addressed part of the problem. All
remaining UTF8 data structurs in HDFS should be removed.

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