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hadoop 1.1.2 sources (maven project) - Hadoop - [mail # user]
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...Hi I have hadoop-core 1.1.2 and hadoop-test 1.1.2 as dependency in my maven project. org.apache.hadoop ...
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Author: Oleg Ruchovets,
2013-05-01, 13:58
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Re: aggregation by time window - Hadoop - [mail # user]
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...Well , much more clear , but still have a questions :-) Suppose we have 3 map input records event1 | 10:07 event2 | 10:10 event3 | 10:12 Output from map(event1 | 10:07) wil...
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Author: Oleg Ruchovets,
2013-01-28, 14:49
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Re: aggregation by time window - Hadoop - [mail # user]
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...Hi , Zhiwei. No :-). Every 7 minutes is is easy. just transform time to milisecond/7*60000 will give you a bucket key. I need to do the following: Find the ...
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Author: Oleg Ruchovets,
2013-01-28, 13:51
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Re: aggregation by time window - Hadoop - [mail # user]
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...Hi Kai. It is very interesting. Can you please explain in more details your Idea? What will be a key in a map phase? Suppose we have event at 10:07. How would you emit th...
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Author: Oleg Ruchovets,
2013-01-28, 13:43
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aggregation by time window - Hadoop - [mail # user]
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...Hi , I have such row data structure: event_id | time ============= event1 | 10:07 event2 | 10:10 event3 ...
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Author: Oleg Ruchovets,
2013-01-28, 12:56
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Re: Disks RAID best practice - Hadoop - [mail # user]
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...Do you mean RAID 10 for Master Node? What about DataNode? Thanks Oleg. On Thu, Nov 1, 2012 at 2:43 PM, Michael Segel wrote: ...
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Author: Oleg Ruchovets,
2012-11-01, 12:52
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Disks RAID best practice - Hadoop - [mail # user]
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...Hi , What is the best practice for DISKS RAID (Master and Data Nodes). Thanks in advance Oleg....
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Author: Oleg Ruchovets,
2012-11-01, 12:37
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Re: Which hardware to choose - Hadoop - [mail # user]
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...Great , Thank you for the such detailed information, By the way what type of Disk Controller do you use? Thanks Oleg. On Tue, Oct 2, 2012 at 6:34 AM, Alexander Pivov...
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Author: Oleg Ruchovets,
2012-10-02, 14:59
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Unexpected end of input stream (GZ) - Hadoop - [mail # user]
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...Hi , I got such exception running hadoop job: java.io.EOFException: Unexpected end of input stream at org.apache.hadoop.io.compress.DecompressorStream.getCompressedData(DecompressorStr...
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Author: Oleg Ruchovets,
2012-07-24, 08:19
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Re: execute hadoop job from remote web application - Hadoop - [mail # user]
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...So you mean that in case I am going to submit job remotely and my_hadoop_job.jar will be in class path of my web application it will submit job with my_hadoop_job.jar to remote hadoop machin...
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Author: Oleg Ruchovets,
2011-10-18, 16:50
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