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How to use HPROF for rhadoop jobs ? - HDFS - [mail # user]
...Hi All  I can use HPROF in java map reduce jobs.   Configuration conf = getConf();  conf.setBoolean("mapred.task.profile", true);  conf.set("mapred.task.profile.params", ...
   Author: rohit sarewar, 2013-03-29, 15:37
Cannot start NameNode - HDFS - [mail # user]
...I have installed hadoop from CDH4 tarball. I cannot start my name node. All the other services are working fine. Can someone tell me the exact reason ? See the screenshort of the error encou...
   Author: rohit sarewar, 2013-03-20, 13:55
Re: CDH4 installation along with MRv1 from tarball - HDFS - [mail # user]
...Hi Jens  These are not complete version of Hadoop. *1) hadoop-0.20-mapreduce-0.20.2+1341 (has only MRv1) 2) hadoop-2.0.0+922 (has HDFS+ Yarn)*  I request you to read the comments i...
   Author: rohit sarewar, 2013-03-20, 13:48
Re: Submit RHadoop job using Ozzie in Cloudera Manager - HDFS - [mail # user]
...Hi  I have R and RHadoop packages installed on all the nodes. I can submit RMR jobs manually from the terminal. I just want to know " How to submit RMR jobs from Oozie web interface ?" ...
   Author: rohit sarewar, 2013-03-08, 10:53
Hadoop Security - HDFS - [mail # user]
...Hi Hadoopers I am trying to learn " How Kerberos can be implemented in Hadoop ?" I have gone through this doc https://issues.apache.org/jira/browse/HADOOP-4487 I have also gone through Basic...
   Author: rohit sarewar, 2013-02-28, 15:41
Hadoop Security via Kerberos - HDFS - [mail # user]
...Hi  I am trying to learn how Kerberos can be implemented in Hadoop. I have gone through this doc https://issues.apache.org/jira/browse/HADOOP-4487 I have also gone through Basic Kerbero...
   Author: rohit sarewar, 2013-02-27, 17:14
How does Kerberos work with Hadoop ? - HDFS - [mail # user]
...I am looking for an explanation of Kerberos working with Hadoop cluster . I need to know how KDC is used by hdfs and mapred.  (Something like this :- An example of kerberos with mail se...
   Author: rohit sarewar, 2013-02-21, 19:02
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