Hi, I'm a newbie in this field and trying to setup HDP 2.3.0 single node cluster on a Windows Server 2012 R2 system. I've been following the steps mentioned here: http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.3.0-Win/bk_QuickStart_HDPWin/content/ch_qinst.html However, after successfully installing HDP 2.3.0 as per instructions, I was able to start the services with 2 failures: After this, I went on to check one of the HDFS commands but the connection was refused: Does anyone know what I've done wrong in setting up the single node cluster or do I need to do something else for this to work? Please also note that I've disabled the firewall already. Thanks in advance for helping! Adi EDIT: Installing SQL server instead of Derby solved the problem. Thanks to @Artem Ervits. ... View more