Netwitness: Error java.net.UnknownHostException when running report against RespondDB

Issue

There is an Unknown Host Exception Error is shown when running a report against RespondDB after migration of all the hosts to new Admin-Server

Cause

On the Reporting Engine, the component reads RabbitMQ Properties from the path /etc/netwitness/platform/legacy_rabbit/nw-re-server.rabbitmq.properties which contains entry of old admin-server. To resolve this, we need to remove this file and recreate it by running a chef recipe.

Resolution

Make sure that the Reporting Engine is not having any customization done in terms of configuration in this RabbitMQ properties file because this chef recipe will set the properties to default. Please take a backup of this file before deleting it.

Follow below steps on Admin-Server Node:-
1. Stop Reporting Engine service using below command.

 systemctl stop rsasoc_re

2. Remove existing nw-re-server.rabbitmq.properties file using below command.

 rm -rf /etc/netwitness/platform/legacy_rabbit/nw-re-server.rabbitmq.properties

3. Run Reporting Enginer recipe using below command.

 chef-client -r "recipe[nw-re-server::config]" --config /var/lib/netwitness/config-management/client.rb --json-attributes /etc/netwitness/config-management/node.json

4. Verify the host name in cat /var/netwitness/re-server/rsa/soc/reporting-engine/rabbitmq.properties output.
6. Start Reporting Engine service using below command and verify Report against Respond Database.

  systemctl start rsasoc_re
 

Product Details

NetWitness Product Set: NetWitness Platform
NetWitness Product/Service Type: AdminServer
NetWitness Version/Condition: 11.6 and above
Platform: CentOS 7 / Alma

Summary

Error-java-net-UnknownHostException-when-running-report-against-RespondDB

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