graceful doing contingent scheduled tasks?


say i've got twin scheduled processes: b.



given b should run until completed, competence i gracefully make dependency?



approaches have considered:




  1. have news b on completion. downside b never being scheduled reason failed.


  2. when b runs, have ping latter completed. competence achieved (network, file, database record, summary queue) unfinished mysterious introducing third dependency.


  3. combine b unparalleled process. downside firmly contracting two, origination harder re-run confine need be.




thoughts?



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