3.1. Troubleshooting Ambari

Use these entries to help you troubleshoot any issues you might have installing Ambari with an existing Oracle database.

 3.1.1. Problem: Ambari Server Fails to Start: No Driver

Check /var/log/ambari-server/ambari-server.log for the following error:

ExceptionDescription:Configurationerror. 
Class[oracle.jdbc.driver.OracleDriver] not found.

The Oracle JDBC .jar file cannot be found.

 3.1.1.1. Soution

Make sure the file is in the appropriate directory on the Ambari server and re-run ambari-server setup. See Step 1 above.

 3.1.2. Problem: Ambari Server Fails to Start: No Connection

Check /var/log/ambari-server/ambari-server.log for the following errror:

The Network Adapter could not establish the connection
Error Code: 17002

Ambari Server cannot connect to the database.

 3.1.2.1. Soution

Confirm the database host is reachable from the Ambari Server and is correctly configured by reading /etc/ambari-server/conf/ambari.properties .

server.jdbc.url=jdbc:oracle:thin:
             @oracle.database.hostname:1521/ambaridb
server.jdbc.rca.url=jdbc:oracle:thin:
             @oracle.database.hostname:1521/ambaridb 

 3.1.3. Problem: Ambari Server Fails to Start: Bad Username

Check /var/log/ambari-server/ambari-server.log for the following error:

Internal Exception: java.sql.SQLException: ORA­01017: 
invalid username/password; logon denied

You are using an invalid username/password.

 3.1.3.1. Soution

Confirm the user account is set up in the database and has the correct privileges. See Step 3 above.

 3.1.4. Problem: Ambari Server Fails to Start: No Schema

Check /var/log/ambari-server/ambari-server.log for the following error:

 Internal Exception: java.sql.SQLSyntaxErrorException: ORA­00942: 
table or view does not exist 

The schema has not been loaded.

 3.1.4.1. Soution

Confirm you have loaded the database schema. See Step 4 above.


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