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[expand - 1 more] - Re: Kerberos Security in Hadoop - Hadoop - [mail # user]
...http://www.cloudera.com/content/cloudera/en/documentation/core/v5-2-x/topics/cdh_sg_authentication.htmlOn Wed, Feb 18, 2015 at 5:49 PM, Manoj Samel wrote: ...
   Author: Alexander Pivovarov, 2015-02-19, 02:16
Re: Copying many files to HDFS - Hadoop - [mail # user]
...Hi Kevin,What is network throughput btw1. NFS server and client machine?2. client machine and dananodes?AlexOn Feb 13, 2015 5:29 AM, "Kevin"  wrote: ...
   Author: Alexander Pivovarov, 2015-02-17, 05:33
[expand - 2 more] - Re: Building for Windows - Hadoop - [mail # user]
...There are about 3000 testsIt should be particular box configuration to run all tests successfullyyou should have lots of memoryIt takes min 1 hour to run all testsLook at hadoop pre-commit b...
   Author: Alexander Pivovarov, 2015-02-12, 00:28
Re: Multiple separate Hadoop clusters on same physical machines - Hadoop - [mail # user]
...start several vms and install hadoop on each vmkeywords: kvm, QEMUOn Mon, Jan 26, 2015 at 1:18 AM, Harun Re┼čit Zafer <[EMAIL PROTECTED]> wrote: ...
   Author: Alexander Pivovarov, 2015-02-02, 07:27
Re: way to add custom udf jar in hadoop 2.x version - Hadoop - [mail # user]
...I found that the easiest way is to put udf  jar to /usr/lib/hadoop-mapredon all computers in the cluster. Hive cli, hiveserver2, oozie launcher,oozie hive action, mr will see the jar th...
   Author: Alexander Pivovarov, 2014-12-31, 08:54
Re: Hardware requirements for simple node hadoop cluster - Hadoop - [mail # user]
...for balanced conf you need (per core)1-1.5  2 GB 7200 SATA hdd for hdfs  (in JBOD mode, not RAID)3-4 GB RAM ECCreserve  4GB RAM for OSbetter to use separate hdd or usb stick f...
   Author: Alexander Pivovarov, 2014-12-07, 09:57
[expand - 2 more] - Re: High Availability hadoop cluster. - Hadoop - [mail # user]
...For 17 box cluster it's probably good to run 5 ZKs and 5 JNsSo, run 2 ZKs on 2 NNs3 ZKs on 3 DNssame for JNsyou can start additional ZKs and JNs after you are done with initialEnabling HA in...
   Author: Alexander Pivovarov, 2014-11-06, 17:40
Re: problems with Hadoop instalation - Hadoop - [mail # user]
...Are RHEL7 based OSs supported?On Wed, Oct 29, 2014 at 3:59 PM, David Novogrodsky <[EMAIL PROTECTED]> wrote: ...
   Author: Alexander Pivovarov, 2014-10-29, 23:07
Re: how to copy data between two hdfs cluster fastly? - Hadoop - [mail # user]
...try to run on dest cluster datanode$ hadoop fs -cp hdfs://from_cluster/....    hdfs://to_cluster/....On Fri, Oct 17, 2014 at 11:26 AM, Shivram Mani  wrote: ...
   Author: Alexander Pivovarov, 2014-10-17, 18:51
[expand - 1 more] - Re: Spark vs Tez - Hadoop - [mail # user]
...It's going to be spark engine for hive (in addition to mr and tez).Spark API is available for Java and Python as well.Tez engine is available now and it's quite stable. As for speed.  F...
   Author: Alexander Pivovarov, 2014-10-17, 18:25
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB