D. Configure SSH on the Unica Campaign listener server
This is the fourth step to integrate Unica Campaign with Impala-based Cloudera Hadoop data sources.
About this task
To enable data file transfers between the Unica Campaign listener (analytic) server and the Impala-based Hadoop big data instance, you must configure SCP and SSH seamless login. SSH allows secure connection between two computers; most systems use the OpenSSH client.
Procedure
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On the machine that is running the Unica Campaign listener, configure SSH for no password prompt for authentication. Log in as the user who is
running the Unica Campaign listener and run the
following commands, substituting the username@IP address of your Impala server (in this
example, the MapR machine):
>> ssh-keygen -t rsa
>> ssh cloudera@192.0.2.0 mkdir -p .ssh
>> cat .ssh/id_rsa.pub | ssh cloudera@192.0.2.0 'cat >> .ssh/authorized_keys'
>> ssh cloudera@192.0.2.0 "chmod 700 .ssh; chmod 640 .ssh/authorized_keys"
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Verify password-less authentication using RSA-based authorized keys. Run each command,
substituting the actual username@IP address, and verify that it works. You need a local file
called test1 for this test to work:
>> ssh cloudera@192.0.2.0
>> scp test1 cloudera@192.0.2.0:/tmp
>> ssh cloudera@192.0.2.0 "rm /tmp/test1"