Hey,
The kill node allows a workflow job to kill itself.
When a workflow job reaches the kill it finishes in error (KILLED).
If one or more actions started by the workflow job are executing when the kill node is reached, the actions will be killed.
A workflow definition may have zero or more kill nodes.
One Syntax Example:
<workflow-app name="[WF-DEF-NAME]" xmlns="uri:oozie:workflow:0.1">
...
<kill name="[NODE-NAME]">
<message>[MESSAGE-TO-LOG]</message>
</kill>
...
</workflow-app>
The name attribute in the kill node is the name of the Kill action node. The content of the message element will be logged as the kill reason for the workflow job.