@Ganesh Raju With newer versions of maven you can disable the certificate validation of the maven http wagon temporarily to confirm if the certificate is indeed the source of the problem. -Dmaven.wagon.http.ssl.insecure=true -Dmaven.wagon.http.ssl.allowall=true . As per Ambari Build Note the maven version should be "Apache Maven 3.0.5" Please see: https://cwiki.apache.org/confluence/display/AMBARI/Ambari+Development ... View more