Since the OS version is not supported, Cloudera Support will be unable to support the cluster. However if you do have a support contract, I'd suggest talking to your account rep who can provide a definite answer. ... View more

ppk refers to Putty's custom format. You should use the key format used by OpenSSH. there are tools to convert between these two formats. Alternatively, you can use the ssh-keygen tool to create a fresh pair of keys ... View more

The gateway role doesn't start or stop. It is there just to deploy client config on the node and refresh it when the cluster is modified. ... View more

> GenericJDBCException: Could not open connection This implies Cloudera Manager is unable to connect to the database. If you're using the embedded postgresql database, ensure it is running. Visit the file /etc/cloudera-scm-server/db.properties. Use the authentication creds in it and try to connect to the database directly, like "psql -U user -p password database". Does it work? ... View more

Hive on Spark in CDH 5.3.0 is not supported but i am not privy to any timetables. Sorry I can't help in that way. I would suggest that you subscribe to the Announcements forum so you are updated when a new version is released. http://community.cloudera.com/t5/Release-Announcements/bd-p/RelAnnounce ... View more

HBase does include a balancer. Note however that it balances based on number of regions, not their size or traffic. So it is still possible that a regionserver ends up with more larger/busier regions than other regionservers. If you notice this behaviour, you can always manually reassign a region using the HBase Shell. http://hbase.apache.org/book/node.management.html#lb ... View more

Debian 8.0 is not a supported OS as of C5.3.0. As an alternative you could install CM and CDH using tarballs, Path C. ref: http://www.cloudera.com/content/cloudera/en/documentation/core/latest/topics/installation_installation.html ... View more