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Re: Ways to manage user accounts on hadoop cluster when using kerberos security - Hadoop - [mail # user]
...I recently found a pretty simple and easy way to set ldap up for my machines on rhel and wrote it up using jumpbox and authconfig.  If you are in the cloud and only need a quick easy ld...
   Author: Jay Vyas, 2014-01-08, 18:52
Write a file to local disks on all nodes of a YARN cluster. - Hadoop - [mail # user]
...I want to put a file on all nodes of my cluster, that is locally readable (not in HDFS).  Assuming that i cant gaurantee a FUSE mount or NFS or anything of the SORT on my cluster, is th...
   Author: Jay Vyas, 2013-12-08, 21:25
FSMainOperations > FSContract tests? - Hadoop - [mail # user]
...Mainly @steveloughran Is it safe to say that *old* fs semantics are in FSContract test, and *new* fs semantics in FSMainOps tests ?   I ask this because it seems that you had tests in y...
   Author: Jay Vyas, 2013-12-05, 19:29
Re: Newbie:Need guidance - Hadoop - [mail # dev]
...I just created the jira :)  Its brand new so it wont be useful just yet - and also - similar to steve's comment - it is for learning the ecosystem, not the underlying plumbing of distri...
   Author: Jay Vyas, 2013-09-24, 16:42
NullPointerExceptipn in getPos of buffered FsDataInputStream - Hadoop - [mail # dev]
...I'm finding funny behaviour in the multifilewordcount example .  The getPos implementation in the RecirdReader is failing for me when the input steam is closed, and throwing a cryptic n...
   Author: Jay Vyas, 2013-09-10, 00:53
RawLocalFileSystem, getPos and NullPointerException - Hadoop - [mail # user]
...What is the correct behaviour for getPos  in a record reader, and how should it behave when the underlying stream is null?  It appears this can happen in the rawlocalfilesystem. &n...
   Author: Jay Vyas, 2013-09-10, 00:01
MultiFileLineRecodrReader vs CombineFileRecordReader - Hadoop - [mail # user]
...I've found that there are two different implementations of seemingly the same class:  MultiFileLineRecordReader (implemented as an inner class in some versions of MultiFileWordCount) an...
   Author: Jay Vyas, 2013-09-07, 21:53
Mapred.system.dir: should JT start without it? - Hadoop - [mail # user]
...Is there a startup for contract mapreduce making its own mapred.system.dir  ?   Also, it seems that the jobtracker can startup even if this directory was not created / doesn't exis...
   Author: Jay Vyas, 2013-08-15, 13:24
Staging directory ENOTDIR error. - Hadoop - [mail # user]
...Hi , I'm getting an ungoogleable exception, never seen this before.  This is on a hadoop 1.1. cluster... It appears that its permissions related... Any thoughts as to how this could cro...
   Author: Jay Vyas, 2013-07-11, 22:41
Re: JobSubmissionFiles: past , present, and future? - Hadoop - [mail # user]
...To update on this, it was just pointed out to me by matt farrallee  that the auto fix of permissions is for a failsafe  in case of a race condition, and not meant to mend bad permi...
   Author: Jay Vyas, 2013-04-12, 12:21
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