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Posted to common-dev@hadoop.apache.org by "Chris Douglas (JIRA)" <ji...@apache.org> on 2009/05/26 06:06:45 UTC
[jira] Commented: (HADOOP-5879) GzipCodec should read compression
level etc from configuration
[ https://issues.apache.org/jira/browse/HADOOP-5879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712846#action_12712846 ]
Chris Douglas commented on HADOOP-5879:
---------------------------------------
Both SequenceFile and IFile use o.a.h.io.compress.CodecPool to pool codecs. This is unlikely to work as expected, there.
> GzipCodec should read compression level etc from configuration
> --------------------------------------------------------------
>
> Key: HADOOP-5879
> URL: https://issues.apache.org/jira/browse/HADOOP-5879
> Project: Hadoop Core
> Issue Type: Improvement
> Components: io
> Reporter: Zheng Shao
> Attachments: hadoop-5879-5-21.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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