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Date: Fri, 5 Mar 2010 23:07:27 +0000 (UTC)
From: "Tsz Wo (Nicholas), SZE (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-6588) CompressionCodecFactory throws
 IllegalArgumentException
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    [ https://issues.apache.org/jira/browse/HADOOP-6588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12842092#action_12842092 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-6588:
------------------------------------------------

> I assume you mean o.a.h.mapreduce.TextInputFormat. Not sure how to fix it in CompressionCodecFactory though. ...
It should be org.apache.hadoop.mapreduce.lib.input.TextInputFormat.

I think the CompressionCodecFactory should cache the codec classes and only calls Class.forName(..) at the first time.

> CompressionCodecFactory throws IllegalArgumentException
> -------------------------------------------------------
>
>                 Key: HADOOP-6588
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6588
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: io
>            Reporter: Tsz Wo (Nicholas), SZE
>         Attachments: c6588_20100222.patch
>
>
> WordCount does not run. :(
> {noformat}
> java.lang.IllegalArgumentException: Compression codec com.hadoop.compression.lzo.LzoCodec not found.
>         at org.apache.hadoop.io.compress.CompressionCodecFactory.getCodecClasses(CompressionCodecFactory.java:96)
>         at org.apache.hadoop.io.compress.CompressionCodecFactory.<init>(CompressionCodecFactory.java:134)
>         at org.apache.hadoop.mapreduce.lib.input.TextInputFormat.isSplitable(TextInputFormat.java:46)
>         at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:247)
>         at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:886)
>         at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:780)
>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:444)
>         at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:459)
>         at org.apache.hadoop.examples.WordCount.main(WordCount.java:67)
>         ...
> {noformat}

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