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Re: DistributedCache in NewAPI on 0.20.X branch - Hadoop - [mail # user]
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...Hi Shi My Bad, the syntax i posted last time was not the right one , sorry was from my hand held @Override public void setup(Context context) { ...
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Author: Bejoy Ks,
2011-12-17, 19:45
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Re: DistributedCache in NewAPI on 0.20.X branch - Hadoop - [mail # user]
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...Hi Shi Try out the following,it could get things working Use DistributedCache.getCacheFiles() instead of DistributedCache.getLocalCacheFiles() p...
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Author: Bejoy Ks,
2011-12-16, 09:33
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Re: Where do i see Sysout statements after building example ? - Hadoop - [mail # user]
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...Adding on to Harsh's response. If your Sysouts are on mapper or reducer classes, you can get the same from from WebUI as well, http://:50030/jobtracker.jsp . You need to select your jo...
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Author: Bejoy Ks,
2011-12-13, 17:35
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Re: MAX_FETCH_RETRIES_PER_MAP (TaskTracker dying?) - Hadoop - [mail # user]
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...Hi Chris From the stack trace, it looks like a JVM corruption issue. It is a known issue and have been fixed in CDH3u2, i believe an upgrade would solve you...
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Author: Bejoy Ks,
2011-12-05, 21:11
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Re: Pig Output - Hadoop - [mail # user]
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...Hi Aaron Instead of copyFromLocal use getmerge. It would do your job. The syntax for CLI is hadoop fs -getmerge /xyz.txt Hope it helps!... &nbs...
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Author: Bejoy Ks,
2011-12-05, 20:34
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Re: Multiple Mappers for Multiple Tables - Hadoop - [mail # user]
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...Hi Justin, Just to add on to my response. If you need to fetch data from rdbms on your mapper using your custom mapreduce code you can use the DBInp...
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Author: Bejoy Ks,
2011-12-05, 20:31
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Re: Multiple Mappers for Multiple Tables - Hadoop - [mail # user]
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...Justin If I get your requirement right you need to get in data from multiple rdbms sources and do a join on the same, also may be some more custom operations on t...
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Author: Bejoy Ks,
2011-12-05, 20:06
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Re: Multiple reducers - Hadoop - [mail # user]
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...Hi Hoot You can specify the number of reducers explicitly using -D mapred.reduce.tasks=n. hadoop jar wordcount.jar com.wc.WordCount –D mapred.reduce.tasks=n /inp ut /output ...
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Author: Bejoy Ks,
2011-11-29, 14:45
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Re: Issue with DistributedCache - Hadoop - [mail # user]
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...My Bad, I pasted the wrong file. It is updated now, did a few tiny modifications(commented in code) and it was working fine for me. http://pastebin.com/RDuZX7Qd Alex, Thanks a lot for ...
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Author: Bejoy Ks,
2011-11-24, 16:03
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Re: Issue with DistributedCache - Hadoop - [mail # user]
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...Hi Denis I tried your code with out distributed cache locally and it worked fine for me. Please find it at http://pastebin.com/ki175YUx I echo Mike's words i...
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Author: Bejoy Ks,
2011-11-24, 14:45
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