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Re: Number of retries - Hadoop - [mail # user]
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...Hi Mohit To add on, duplicates won't be there if your output is written to a hdfs file. Because if one attempt of a task is completed only that output file is copied to t...
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Author: Bejoy KS,
2012-03-22, 20:00
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Re: Number of retries - Hadoop - [mail # user]
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...Mohit If you are writing to a db from a job in an atomic way, this would pop up. You can avoid this only by disabling speculative execution. Drilling down from web...
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Author: Bejoy KS,
2012-03-22, 19:55
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Re: Input split for a streaming job! - Hadoop - [mail # user]
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...Hi Raj Is your Streaming job using WholeFileInput Format or some Custom Input Format that reads files as a whole? If that is the case then this is the expe...
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Author: Bejoy KS,
2011-11-11, 09:06
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Re: running sqoop on hadoop cluster - Hadoop - [mail # user]
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...Hi Firantika HDFS is the underlying file system and the meta data to HDFS is stored in Name Node and the actual data blocks are in DataNode. You can ...
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Author: Bejoy KS,
2011-10-21, 10:58
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Re: execute hadoop job from remote web application - Hadoop - [mail # user]
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...Hi Oleg I haven't tried out a scenario like you mentioned. But I think there shouldn't be any issue in submitting a job that has some dependent classes whi...
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Author: Bejoy KS,
2011-10-18, 14:34
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Re: execute hadoop job from remote web application - Hadoop - [mail # user]
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...Oleg If you are looking at how to submit your jobs using JobClient then the below sample can give you a start. //get the configuration parameters and assigns a job...
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Author: Bejoy KS,
2011-10-18, 11:54
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Re: FW: Error running org.apache.hadoop.examples.DBCountPageView - Hadoop - [mail # user]
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...Hi Clovis From the exception, it is clearly due to a type mismatch in the Key Value flow between mapper,combiner and reducer. The reducer/combiner is expec...
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Author: Bejoy KS,
2011-10-07, 18:24
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Re: Hadoop : Linux-Window interface - Hadoop - [mail # user]
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...Hi Aditya Definitely you can do it. As a very basic solution you can ftp the contents to LFS(LOCAL/Linux File System ) and they do a copyFromLocal into HDFS...
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Author: Bejoy KS,
2011-10-05, 15:14
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Re: incremental loads into hadoop - Hadoop - [mail # user]
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...Sam Try looking into Flume if you need to load incremental data into hdfs . If the source data is present on some JDBC compliant data bases then you can use SQOOP to get...
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Author: Bejoy KS,
2011-10-01, 19:19
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