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[HADOOP-8791] rm "Only deletes non empty directory and files." - Hadoop - [issue]
...The documentation (1.0.3) is describing the opposite of what rm does.It should be  "Only delete files and empty directories."With regards to file, the size of the file should not matter...
http://issues.apache.org/jira/browse/HADOOP-8791    Author: Bertrand Dechoux, 2014-09-04, 00:18
Re: Data cleansing in modern data architecture - Hadoop - [mail # user]
...Well, keeping bad data has its use too. I assume you know about temporaldatabase.Back to your use case, if you only need to remove a few records from HDFSfiles, the easiest might be during t...
   Author: Bertrand Dechoux, 2014-08-10, 15:05
Re: Hadoop Realtime Queries - Hadoop - [mail # user]
...It all depends on the context and what is really meant by realtime. Impala(and other concurrent alternatives) are not listed among the tools you havetried.Maybe you should not focus only on ...
   Author: Bertrand Dechoux, 2014-07-31, 07:58
Re: EOFException when I list all files in hdfs directory - Spark - [mail # user]
...Well, anyone can open an account on apache jira and post a newticket/enhancement/issue/bug...Bertrand DechouxOn Fri, Jul 25, 2014 at 4:07 PM, Sparky  wrote: ...
   Author: Bertrand Dechoux, 2014-07-25, 14:19
[expand - 4 more] - Re: Skippin those gost darn 0 byte diles - Hadoop - [mail # user]
...For reference : https://issues.apache.org/jira/browse/SPARK-1960(which seems highly related)I don't know if anything is tracked on Hadoop/MapReduce side.Bertrand DechouxOn Wed, Jul 23, 2014 ...
   Author: Bertrand Dechoux, 2014-07-25, 14:05
Re: Spark deployed by Cloudera Manager - Spark - [mail # user]
...Manager deployed Spark ?Asking the cloudera community would be a good idea.http://community.cloudera.com/In the end only Cloudera will fix quickly issues with CDH...Bertrand DechouxOn Wed, J...
   Author: Bertrand Dechoux, 2014-07-23, 08:54
[expand - 3 more] - Re: Replace a block with a new one - Hadoop - [mail # user]
...And there is actually quite a lot of information about it.https://github.com/facebook/hadoop-20/blob/master/src/contrib/raid/src/java/org/apache/hadoop/hdfs/DistributedRaidFileSystem.javahtt...
   Author: Bertrand Dechoux, 2014-07-21, 19:48
Re: Is it possible to fix MR jobs order in Pig? - Pig - [mail # user]
...Well, a user don't really know how many jobs will be scheduled and so theirorder is not something that should matter. A pig script should really beseen as a graph of operators. Your problem ...
   Author: Bertrand Dechoux, 2014-07-20, 15:01
Re: what exactly does data in HDFS look like? - Hadoop - [mail # user]
...But basically you are right : it is the same concept as with a classicalfile system. A file is seen as a sequence of bytes. For various efficiencyreasons, the whole sequence is not stored li...
   Author: Bertrand Dechoux, 2014-07-19, 11:35
Re: Large scale ranked recommendation - Spark - [mail # user]
...And you might want to apply clustering before. It is likely that every userand every item are not unique.Bertrand DechouxOn Fri, Jul 18, 2014 at 9:13 AM, Nick Pentreath wrote: ...
   Author: Bertrand Dechoux, 2014-07-18, 07:59
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