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Posted to issues@nifi.apache.org by "Adam Hunyadi (Jira)" <ji...@apache.org> on 2020/05/13 13:17:00 UTC

[jira] [Created] (MINIFICPP-1222) Rework engine queue for ExecutePythonProcessor

Adam Hunyadi created MINIFICPP-1222:
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             Summary: Rework engine queue for ExecutePythonProcessor
                 Key: MINIFICPP-1222
                 URL: https://issues.apache.org/jira/browse/MINIFICPP-1222
             Project: Apache NiFi MiNiFi C++
          Issue Type: Improvement
            Reporter: Adam Hunyadi
            Assignee: Adam Hunyadi
             Fix For: 1.0.0


*Background:*

The ExecutePythonProcessor is expected to have a limit on the maximal number of concurrent tasks it can run. This {{{color:#403294}{{max_concurrent_tasks}}{color}}} number is currently handled incorrectly, and the processor is able to run any number of tasks at the same time, but only {{{color:#403294}{{max_concurrent_tasks}}{color}}} script-engine is reused.

*Proposal*:

**We should use {{{color:#403294}{{max_concurrent_tasks}}{color}}} as the size of script-engine pool for the processor and always use engines from this pool, wait otherwise.



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