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https://issues.apache.org/jira/browse/HBASE-2225?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12834967#action_12834967
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Lars George commented on HBASE-2225:
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Looks like that is the same check in Hadoop 0.20.1, so it must be due to my
local setup. Ted, care to test the change? Otherwise I tested it with various
command line arguments and it works as expected.
> Enable compression in HBase Export
> ----------------------------------
>
> Key: HBASE-2225
> URL: https://issues.apache.org/jira/browse/HBASE-2225
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: util
> Affects Versions: 0.20.1
> Environment: OS agnostic
> Reporter: Ted Yu
> Assignee: Lars George
> Priority: Minor
> Attachments: HBASE-2225-trunk.patch
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> org.apache.hadoop.hbase.mapreduce.Export should set compression codec
> In createSubmittableJob(), the following should be added:
> FileOutputFormat.setCompressOutput(job, true);
> FileOutputFormat.setOutputCompressorClass(job,
> org.apache.hadoop.io.compress.GzipCodec.class);
> From my experiment, 10% to 50% reduction in Export output has been observed.
> SequenceFileInputFormat used by the Import tool is able to detect GzipCodec -
> there is no change for Import class.
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