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[expand - 1 more] - Re: Total memory available to NameNode - Hadoop - [mail # user]
...Ah, yes. Toms book is a good start, and Eric Sammers book Hadoop Operations too :) BR, AL ...
   Author: Alexander Alten-Lorenz, 2015-03-26, 11:03
Re: Trusted-realm vs default-realm kerberos issue - Hadoop - [mail # user]
...Do you have mapping rules, which tells Hadoop that the trusted realm is allowed to login? http://mapredit.blogspot.de/2015/02/hadoop-and-trusted-mitv5-kerberos-with.html BR, Alex ...
   Author: Alexander Alten-Lorenz, 2015-03-25, 09:29
Re: Impala CREATE TABLE AS AVRO Requires "Redundant" Schema - Why? - Hadoop - [mail # user]
...Hi,Impala is a product of Cloudera. You might request help per:https://groups.google.com/a/cloudera.org/forum/#!forum/impala-user BR,  Alex ...
   Author: Alexander Alten-Lorenz, 2015-02-26, 17:22
Re: Ambari based uninstall - Hadoop - [mail # user]
...Steve,I wrote up that howto some month ago, worth to test?http://mapredit.blogspot.de/2014/06/remove-hdp-and-ambari-completely.html R, Alexander  ...
   Author: Alexander Alten-Lorenz, 2015-02-26, 15:32
Re: mssql bulk copy dat files - Hadoop - [mail # user]
...Not per default. But you can use sqoop to offload the DBs into something-delimited text.http://mapredit.blogspot.de/2011/10/sqoop-and-microsoft-sql-server.html http://www.microsoft.com/en-us...
   Author: Alexander Alten-Lorenz, 2015-02-23, 11:09
[expand - 1 more] - Re: recombining split files after data is processed - Hadoop - [mail # user]
...You could attach the hadoop dfs command per bootstrap.http://stackoverflow.com/questions/12055595/emr-how-to-join-files-into-one BR, Alex ...
   Author: Alexander Alten-Lorenz, 2015-02-23, 08:44
[expand - 4 more] - Re: Yarn AM is abending job when submitting a remote job to cluster - Hadoop - [mail # user]
...Hm, hitting enter to fast:… from a client which isn’t part of a cluster ...... ...
   Author: Alexander Alten-Lorenz, 2015-02-23, 07:02
Re: java.net.UnknownHostException on one node only - Hadoop - [mail # user]
...Important is, that the canonical name must be the FQDN of the server, see the example.1.1.1.1 one.one.org one namenode1.1.1.2 two.one.og two datanodeIf DNS is used the system’s hostname must...
   Author: Alexander Alten-Lorenz, 2015-02-23, 06:56
Re: How to Tune Hadoop Cluster from Administrator prospective - Hadoop - [mail # user]
...Hi, http://mapredit.blogspot.de/2014/11/hadoop-server-performance-tuning.html It covers only the Linux part, not the hadoop part himself. For that a new article will follow in the next ...
   Author: Alexander Alten-Lorenz, 2015-02-21, 11:33
Re: Apache Sentry - Hadoop - [mail # user]
...Hi,Pros: Safe and easy to use for DWH based on Hadoop (Beeline, Metastore, HiveServer2, Impala, HDFS …)Cons: works not with HCatalog, Pig, old HiveServer1, /usr/bin/hive (u have to use beeli...
   Author: Alexander Alten-Lorenz, 2015-02-19, 09:42
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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