I wanted to know if ozzie spark actions are supported by HDP 2.5.o or shoud I use faclon instead? Does falcon on HDP 2.5.0 supports spark actions?
Yes, Oozie Spark Action is supported in HDP 2.5.0 (OOZIE-1983). However, be advised that there are known issues.
For a description and workaround, take a look at the below link under BUG-63226.
Alternatively, you can also use the workaround described in the article below.