Hi It seems the postgres database with the name "AMBARIDATABASE" is not existing in your environment. Crosscheck your ambari server config file. Usually the db name will be "ambari" cat /etc/ambari-server/conf/ambari.properties | grep -i server.jdbc.database_name server.jdbc.database_name=ambari To verify the postgres database name available, [root@conf]# su - postgres -bash-4.1$ psql psql (8.4.20) Type "help" for help. postgres=# \list List of databases Name | Owner | Encoding | Collation | Ctype | Access privileges -----------+----------+----------+-------------+-------------+----------------------- ambari | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =Tc/postgres : postgres=CTc/postgres : ambari=CTc/postgres hive | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres : postgres=CTc/postgres template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres : postgres=CTc/postgres (5 rows) ... View more

I too have noticed this problem with "drivers.csv". The problem i observed is, if anyfiles which is less than 4kb in size through ambari files view we are not able to upload. But you can upload the same through hdfs cli or with cURL commands. If you still wanted to use through ambari files view, just try to put more contents on the csv file to exceed 4 or 8kb in size. Let me know if that works. ... View more