Creating Oozie database step failed during cluster setup

[#1]

Create Oozie database step failed when setting up cluster. I did clean up my previous install as that was failed during deploy client config step. I tried after cleaning up /var/lib/oozie/* but no luck. Please let me know some solution to come out of this. I tried to connect psql uitlity but not recognizing my psql command.

Error: DB schema exists

Stack trace for the error was (for debug purposes):
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java.lang.Exception: DB schema exists
	at org.apache.oozie.tools.OozieDBCLI.validateDBSchema(OozieDBCLI.java:929)
	at org.apache.oozie.tools.OozieDBCLI.createDB(OozieDBCLI.java:184)
	at org.apache.oozie.tools.OozieDBCLI.run(OozieDBCLI.java:127)
	at org.apache.oozie.tools.OozieDBCLI.main(OozieDBCLI.java:78)
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[#2 · Accepted solution]

This is resolved after cleaning up oozie directory. In my case rm -rf /rms/var/lib/oozie/*