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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5879) GzipCodec should read compression level etc from configuration
Date Wed, 10 Feb 2010 09:08:28 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5879?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated HADOOP-5879:
----------------------------------

    Release Note: Provide an ability to configure the compression level and strategy for codecs.
Compressors need to be 'reinited' with new characteristics such as compression level etc.
and hence an incompatible addition to the api.  (was: Provide an ability to configure the
compression level and strategy for codecs.)
    Hadoop Flags: [Incompatible change, Reviewed]  (was: [Reviewed])

> GzipCodec should read compression level etc from configuration
> --------------------------------------------------------------
>
>                 Key: HADOOP-5879
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5879
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: io
>            Reporter: Zheng Shao
>            Assignee: He Yongqiang
>             Fix For: 0.21.0
>
>         Attachments: H5879-5.patch, hadoop-5879-5-21.patch, hadoop-5879-7-13-2.patch,
hadoop-5879-7-13-3.patch, hadoop-5879-7-18-3.patch, hadoop-5879-7-26.patch, hadoop-5879-yahoo-0.20-v1.0.patch
>
>
> GzipCodec currently uses the default compression level. We should allow overriding the
default value from Configuration.
> {code}
>   static final class GzipZlibCompressor extends ZlibCompressor {
>     public GzipZlibCompressor() {
>       super(ZlibCompressor.CompressionLevel.DEFAULT_COMPRESSION,
>           ZlibCompressor.CompressionStrategy.DEFAULT_STRATEGY,
>           ZlibCompressor.CompressionHeader.GZIP_FORMAT, 64*1024);
>     }
>   }
> {code}

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