I want to create a variable that should be available to all the actions in the Oozie workflow. I have tried to create it as shown below. But EL expression is not getting evaluated resulting in variable current_ts value as EL expression itself. Can somebody please throw some light on this? <workflow-app xmlns="uri:oozie:workflow:0.4" name="no-op-wf"> <parameters> <property> <name>current_ts</name> <value>${replaceAll((replaceAll((replaceAll((timestamp()),"-","")),"T","_")),":","")}</value> </property> </parameters> <start to="test"/> <kill name="test"> <!--message Just to show that this expression works if used here>Timestamp - [${replaceAll((replaceAll((replaceAll((timestamp()),"-","")),"T","_")),":","")}</message--> <message>Timestamp - ${current_ts}</message> <!-- this will print expression but not evaluate it --> </kill> <end name="end"/> </workflow-app> ... View more