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https://issues.apache.org/jira/browse/AURORA-262?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bill Farner resolved AURORA-262.
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Resolution: Won't Fix
> "Nothing to do, don't execute dependencies" flag for a Process
> --------------------------------------------------------------
>
> Key: AURORA-262
> URL: https://issues.apache.org/jira/browse/AURORA-262
> Project: Aurora
> Issue Type: Story
> Components: Executor
> Reporter: Kevin Sweeney
> Priority: Minor
>
> I've been writing a lot of thermos recently and one feature would make my
> life much easier:
> my (simplified) process graph
> {code}
> copy_input_data -> generate_output_data_from_input_data -> copy_output_data
> {code}
> I'd like to add conditional logic to this graph to prevent unnecessary work.
> This is easily possible by adding a new process to the start of the graph
> {code}
> check_output_exists = Process(
> cmdline="""if output_exists; then exit 1; else exit 0; fi""")
> {code}
> This successfully aborts the pipeline but tells the executor that the task
> has failed, which will cause the scheduler to retry forever. An alternative
> would be to add this conditional logic to every dependency process in the
> pipeline (and exit 0) but that gets pretty messy. I propose adding a new
> feature to thermos that allows a Process to skip the rest of the graph, but
> still indicate success.
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