Cisco Cisco Workload Automation 6.3 User Guide

Configuring the MapReduce Adapter

Configuring the Adapter

<Sqoop.version>1.4.6-mapr-1601</Sqoop.version>

<Mapr.version>5.1.0-mapr</Mapr.version>

</properties>

From the directory containing the Hadoop distribution you want, execute this command:

mvn dependency:copy-dependencies -DoutputDirectory=<directory to which you want to download the 

jars>

For example, running the following command from the CDH directory:

mvn dependency:copy-dependencies -DoutputDirectory=C:\CDHlib

would insert the Cloudera Hadoop client libraries to the “C:\CDHlib” directory. 

Configuring the Adapter

This section describes the requirements and configuration tasks:





See also 

 for information about general and adapter-specific properties that can be set to 

control things like logging and connection properties. 

MapR Client Software Requirements

When using MapR:



MapR Client software must be configured on the CWA master machine.



MapR Client software must be configured appropriately using the link http:// 
www.mapr.com/doc/display/MapR/Setting+Up+the+Client. The Adapter will not work unless there is confirmed 
communication between the client and cluster.



Although MapR does not support user impersonation from Windows, spoofing is supported. Refer 
http://doc.mapr.com/display/MapR/Setting+Up+the+Client#Configuring%20MapR%20Client%20User%20on%20W
indows.



The Hadoop client libraries must be downloaded as described in 

.

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When using the MapR distribution, service.props must be modified for your platform. See 

 for more information about service.props 

configuration. 



If the MapR setup is configured to use Kerberos, open "mapr.login" file in the MapR client and edit the 
hadoop_default_keytab entry to have the following:

 com.sun.security.auth.module.Krb5LoginModule required

      useKeyTab=true

  principal="<<user principle>>"

  keyTab="<<Path to the keytab file>>";

An example the hadoop_default_keytab entry could look as follows:

hadoop_default_keytab {

  

  com.sun.security.auth.module.Krb5LoginModule required

      useKeyTab=true

  doNotPrompt=false