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[expand - 1 more] - Re: java.io.IOException: Bad connect ack with firstBadLink - Hadoop - [mail # user]
...What does it mean:   It looks like second attempt to process data after the first time it failed? All Task AttemptsTask AttemptsMachineStatusProgressStart TimeShuffle FinishedSort Finis...
   Author: Oleg Ruchovets, 2010-11-09, 11:07
what does it mean -- java.io.IOException: Filesystem closed - Hadoop - [mail # user]
...Hi ,   Running jadoop job from time to time I got such exception (from one of the reducers):  The questions are : 1) What does this exception means for the data integrity? 2) Does ...
   Author: Oleg Ruchovets, 2010-11-02, 18:38
how to find out: which files related to current hadoop task - Hadoop - [mail # user]
...Hi ,  Running  a hadoop job which manipulates ~ 4000 files (files ar gz) , and suppose one of this gz was corrupted. From web console /log files I can see which task got exception ...
   Author: Oleg Ruchovets, 2010-10-26, 19:43
write files to hdfs from osgi - Hadoop - [mail # user]
...Hi , I need to write files to hdfs file system using hdfs java api . In my case I need that hdfs client runs from OSGi.  1) Does someone succeed to use hdfs client from OSGi container? ...
   Author: Oleg Ruchovets, 2010-07-06, 15:06
copy files to HDFS protocols - Hadoop - [mail # user]
...Hi ,       I use HDFS Shell to copy files from local FileSystem  to Hadoop HDFS. (copyFromLocal command).  1) How can I provide Path to file which locates on local F...
   Author: Oleg Ruchovets, 2010-06-30, 08:59
[expand - 1 more] - Re: the same key in different reducers - Hadoop - [mail # user]
...Hi and thank you for the answers. I didn't check the email and now I see 7 answers. It is really great.    Let me explain in more details why I am asking so strange question :-) &n...
   Author: Oleg Ruchovets, 2010-06-10, 16:27
[expand - 1 more] - Re: best practice to work with resources - Hadoop - [mail # user]
...Thank you for detailed answer:  On Tue, May 25, 2010 at 5:48 PM, Harsh J  wrote:  using java code. Is it possible work with resources  without java code changes? I mean w...
   Author: Oleg Ruchovets, 2010-05-25, 15:37
execute mapreduce job on multiple hdfs files - Hadoop - [mail # user]
...Hi , All examples that I found executes mapreduce job on a single file but in my situation I have more than one.  Suppose I have such folder on HDFS which contains some files:   &n...
   Author: Oleg Ruchovets, 2010-03-23, 10:18
produce map/reduce on multiple files - Hadoop - [mail # dev]
...Hi , All examples that I found executes mapreduce job on a single file but in my situation I have more than one.  Suppose I have such folder on HDFS which contains some files:   &n...
   Author: Oleg Ruchovets, 2010-03-23, 10:08
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