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From István Tóth (Jira) <j...@apache.org>
Subject [jira] [Created] (PHOENIX-5454) Phoenix scripts start foreground java processes as child processes
Date Tue, 27 Aug 2019 14:00:15 GMT
István Tóth created PHOENIX-5454:
------------------------------------

             Summary: Phoenix scripts start foreground java processes as child processes
                 Key: PHOENIX-5454
                 URL: https://issues.apache.org/jira/browse/PHOENIX-5454
             Project: Phoenix
          Issue Type: Improvement
    Affects Versions: 5.1.0
            Reporter: István Tóth


Currently the phoenix scripts in python start the java process via subprocess.call() or subprocess.popen()
even when the java process has to run in the foreground, and there is no cleanup required.

I propose that in these cases, we start java via os.exec*(). This has the following advantages:
 * There is no python process idling waiting for the java process to end, reducing process
count and memory consumption
 * Signal handling is simplified (signals sent to the starting script are received by the
java process started)
 * Return code handling is simplified (no need to check for and return error codes from java
in the startup script)



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