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https://issues.apache.org/jira/browse/HADOOP-13658?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chen Liang updated HADOOP-13658:
--------------------------------
    Attachment: HADOOP-13658.003.patch

Thanks [~liuml07] for the review and the comments! Uploaded v003 patch to use 
static import instead.

> Replace config key literal strings with config key names I: hadoop common
> -------------------------------------------------------------------------
>
>                 Key: HADOOP-13658
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13658
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>            Priority: Minor
>         Attachments: HADOOP-13658.001.patch, HADOOP-13658.002.patch, 
> HADOOP-13658.003.patch
>
>
> In Hadoop Common, there are several places where the config keys are used by 
> the literal strings instead of their names as in configuration key classes. 
> The default values have the same issue. For example
> {code:title=in o.a.h.i.f.t.Compression.java}
> conf.setInt("io.compression.codec.lzo.buffersize", 64 * 1024);
> {code}
> should be
> {code}
> conf.setInt(
>     CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_KEY,
>     CommonConfigurationKeys.IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_DEFAULT);
> {code}
> instead



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