Grzegorz Chilkiewicz created OOZIE-2101:
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             Summary: all DAG workflow
                 Key: OOZIE-2101
                 URL: https://issues.apache.org/jira/browse/OOZIE-2101
             Project: Oozie
          Issue Type: Wish
            Reporter: Grzegorz Chilkiewicz
            Priority: Minor


i'd read documentation about Oozie,
it looks interesting, but i've a doubt:

first web-page says "Oozie Workflow jobs are Directed Acyclical Graphs (DAGs) 
of actions."
so i assumed it can deal with any DAG, but documentation says it is limited to 
specific subset of DAGs, 
ie:  (DAG in ASCII art, directed top-down:)
    1
   / \
  2   \
 / \   \
3   4   5
 \   \ /
  \   6
   \ /
    7
can't be expressed in Oozie workflow
(according to documentation: every join-node must join all branches of 
corresponding fork-node, so my ASCII DAG isn't valid Oozie workflow...)
am i wrong? / why it's so limited? / is it intentional?

//
//if join-node could just wait until all IN-edges are traversed,
//not necessary from any particular 'corresponding fork-node'
//it would work for all DAGs.....
//




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