Prevent max listeners exceeded warning #322
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This PR fixes
MaxListenersExceededWarningfor complicatedcsvreports using thetransformcsv stream waiting for writing to completeone by oneinstead of pipelining all csv streamssimultaneouslyIt also fixes
MaxListenersExceededWarningfor theprocess message managerin test coverages in cases when we can start the worker several times. For it, the process message manager stops when stopping the worker by removing the listener for process message eventDepends on this PR: