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Re: Splitting files on new line using hadoop fs - Hadoop - [mail # user]
...Hi Mohit         I'm not an expert in pig and it'd be better using the pig user group for pig specific queries. I'd try to help you with some basic trouble shooting of th...
2 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-22, 20:44
Re: How do I synchronize Hadoop jobs? - Hadoop - [mail # user]
...Hi McNeil              Have a look at OOZIE. It is meant for work flow management in hadoop and can serve your purpose.  From: W.P. McNeill To: Hadoop...
   Author: bejoy.hadoop@..., 2012-02-15, 19:28
Re: Combining MultithreadedMapper threadpool size & map.tasks.maximum - Hadoop - [mail # user]
...Hi Rob        I'd try to answer this. From my understanding if you are using Multithreaded mapper on word count example with TextInputFormat and imagine you have 2 thread...
2 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-10, 19:15
Re: Processing compressed files in Hadoop - Hadoop - [mail # user]
...Leo       It should work with your custom Input Formats as well. Add the Lzo codec class to io.compression.codecs and try.   Regards Bejoy K S  From handheld, Please...
2 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-08, 19:03
Re: Preferred ways to specify input and output directories to Hadoop jobs - Hadoop - [mail # user]
...From what I know, a lot of guys including us provide the input and output dirs as position arguments for our custom mapreduce jobs along with other position arguments required for each job. ...
2 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-08, 18:21
Re: Sorting text data - Hadoop - [mail # user]
...Hi Sangrova       Your map method is emitting key values pairs whose type is different than the expected types specified in your driver class. TextInputFormat has LongWritable...
   Author: bejoy.hadoop@..., 2012-02-08, 15:33
Re: What's the best practice of loading logs into hdfs while using hive to do log analytic? - Hadoop - [mail # user]
...Hi     Assume your external table location points to an hdfs dir say /ext_tables/table1/ you can write your custom code in  flume that would ingest data into sub dir within th...
2 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-07, 15:38
Re: Can I write to an compressed file which is located in hdfs? - Hadoop - [mail # user]
...Hi     AFAIK I don't think it is possible to append into a compressed file.  If you have files in hdfs on a dir and you need to compress the same (like files for an hour) you ...
3 emails [+ more]    Author: bejoy.hadoop@..., 2012-02-07, 07:53
Re: How to Set the Value of hadoop.tmp.dir? - Hadoop - [mail # user]
...Hi Bing       What is yout value for dfs.name.dir and dfs.data.dir ? I believe that is still pointing to /tmp. Better to change it to another location as /tmp gets wiped on ev...
   Author: bejoy.hadoop@..., 2012-02-06, 20:47
Re: has bzip2 compression been deprecated? - Hadoop - [mail # user]
...Hi Tim        When you say in hive a table data is  compressed  by using LZO or so. It means the file/blocks that contains the records/data are compressed using...
   Author: bejoy.hadoop@..., 2012-01-09, 21:22
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