Ravi Mutyala created HADOOP-12794:
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Summary: Support additional compression levels for GzipCodec
Key: HADOOP-12794
URL: https://issues.apache.org/jira/browse/HADOOP-12794
Project: Hadoop Common
Issue Type: Improvement
Components: io
Affects Versions: 2.7.2
Reporter: Ravi Mutyala
Assignee: Ravi Mutyala
Fix For: 2.7.3
gzip supports compression levels 1-9. Compression level 4 seems to give best
compression per CPU time in some of our tests. Right now ZlibCompressor that is
used by GzipCodec only supports levels 1,9 and six (default).
Adding all the compression levels that are supported by native ZlibCompressor
can provide more options to tweak compression levels.
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