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https://issues.apache.org/jira/browse/MAHOUT-352?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852316#action_12852316
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Sean Owen commented on MAHOUT-352:
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Hui I think I might understand the problem now. Try using
-Dmapred.output.compress=false for this purpose.
However for now you will also need to remove the line in AbstractJob that
forces this to true:
jobConf.setBoolean("mapred.output.compress", true);
While I want to default to true, I can set this up to not override a value if
set.
> not compression the final output of RecommenderJob
> --------------------------------------------------
>
> Key: MAHOUT-352
> URL: https://issues.apache.org/jira/browse/MAHOUT-352
> Project: Mahout
> Issue Type: Wish
> Components: Collaborative Filtering
> Affects Versions: 0.4
> Reporter: Hui Wen Han
> Priority: Minor
>
> in RecommenderJob Class:
> line 113 :recommenderConf.setClass("mapred.output.compression.codec",
> GzipCodec.class, CompressionCodec.class);
> because the output here is the final output ,the end user may operates the
> output through HDFS API,
> if compress here ,it not very convenient.
> but it's convenient for operation through HDFS　shell to get to local.
> can provider options or not compress ?
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