[jira] [Created] (MINIFICPP-1706) Rework script engine management in ExecuteScript processor

["Gábor Gyimesi (Jira)" <ji...@apache.org>]

Gábor Gyimesi created MINIFICPP-1706:
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             Summary: Rework script engine management in ExecuteScript processor
                 Key: MINIFICPP-1706
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-1706
             Project: Apache NiFi MiNiFi C++
          Issue Type: Improvement
            Reporter: Gábor Gyimesi


In [MINIFICPP-1222|https://issues.apache.org/jira/browse/MINIFICPP-1222] an issue was raised that the script engines were not handled correctly by allowing more engines in the queue than the maximum number of concurrent operations in the ExecutePythonProcessor processor. This issue is also present in the ExecuteScript processor.

In the ExecutePythonProcessor processor the queue was eventually removed in https://github.com/apache/nifi-minifi-cpp/pull/1227 due the python's GIL not allowing real concurrency. In the ExecuteScript processor we should have a solution that allows concurrency with LUA engines limiting the number of engines to the maximum concurrent operations limit, but having a single engine for Python script executions.



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