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Re: LZO with sequenceFile - Hadoop - [mail # user]
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...Thanks. Does it mean LZO is not installed by default? How can I install LZO? On Sat, Feb 25, 2012 at 6:27 PM, Shi Yu wrote: ...
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Author: Mohit Anchlia,
2012-02-26, 07:14
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dfs.block.size - Hadoop - [mail # user]
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...If I want to change the block size then can I use Configuration in mapreduce job and set it when writing to the sequence file or does it need to be cluster wide setting in .xml files? ...
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Author: Mohit Anchlia,
2012-02-26, 01:43
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LZO with sequenceFile - Hadoop - [mail # user]
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...Is LZO compression supported with sequenceFile compression codec? I looked http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/io/SequenceFile.CompressionType.html but it does...
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Author: Mohit Anchlia,
2012-02-25, 21:38
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Compression in sequence file - Hadoop - [mail # user]
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...I see sequenceFile support block level and record level compression. Could someone please help me understand why one is chosen over other? And which one is generally better for performance?...
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Author: Mohit Anchlia,
2012-02-25, 21:33
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MapReduce tunning - Hadoop - [mail # user]
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...I am looking at some hadoop tuning parameters like io.sort.mb, mapred.child.javaopts etc. - My question was where to look at for current setting - Are these settings configured cluster...
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Author: Mohit Anchlia,
2012-02-25, 06:36
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Streaming job hanging - Hadoop - [mail # user]
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...Streaming job just seems to be hanging 12/02/22 17:35:50 INFO streaming.StreamJob: map 0% reduce 0% On the admin page I see that it created 551 input split. Could somone suggest...
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Author: Mohit Anchlia,
2012-02-23, 01:38
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Re: Splitting files on new line using hadoop fs - Hadoop - [mail # user]
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...Thanks I did post this question to that group. All xml document are separated by a new line so that shouldn't be the issue, I think. On Wed, Feb 22, 2012 at 12:44 PM, wrote: &nbs...
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Author: Mohit Anchlia,
2012-02-22, 22:57
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Re: Splitting files on new line using hadoop fs - Hadoop - [mail # user]
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...On Wed, Feb 22, 2012 at 12:23 PM, wrote: I am using pig's XMLLoader in piggybank to read xml files concatenated in a text file. But pig script doesn't work when file is bi...
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Author: Mohit Anchlia,
2012-02-22, 20:29
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Splitting files on new line using hadoop fs - Hadoop - [mail # user]
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...How can I copy large text files using "hadoop fs" such that split occurs based on blocks + new lines instead of blocks alone? Is there a way to do this?...
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Author: Mohit Anchlia,
2012-02-22, 20:15
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Re: Writing small files to one big file in hdfs - Hadoop - [mail # user]
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...Finally figured it out. I needed to use SequenceFileAstextInputFormat. There is just lack of examples that makes it difficult when you start. On Tue, Feb 21, 2012 at 4:50 PM, Mohit Anc...
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Author: Mohit Anchlia,
2012-02-22, 03:31
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