@Hajime Basically, Ambari Infra is only a wrapper, a service like HDFS or YARN, which deploys/manages different components. At the moment, the only component is Solr, which is open source. As Constantin pointed out, the Ambari Infra Stack can be found here: https://github.com/apache/ambari/tree/2ad42074f1633c5c6f56cf979bdaa49440457566/ambari-server/src/main/resources/common-services/AMBARI_INFRA/0.1.0 ... View more

Hi @Jonas Straub , Hi @Ramesh Mani , I just wanted to update with the solution of that issue. At the end it turned out, that after Ambari upgrade (from 2.0.1 initially to Ambari 2.1.2.1), the placeholder-variables were not set/applied correctly via Ambari. In HDFS => advanced ranger-plugin config there were variables like {{xaaudit_db_XYZ}}, and I replaced those with their real values (xaaudit.db.username, xaaudit.db.database, xaaudit.db.password, ...) , restarted HDFS and now the audit log entries are being written. Regards, Gerd ... View more