[jira] [Created] (NIFI-11542) RunNiFi's process detection and termination does not work on Windows

["Paul Kelly (Jira)" <ji...@apache.org>]

Paul Kelly created NIFI-11542:
---------------------------------

             Summary: RunNiFi's process detection and termination does not work on Windows
                 Key: NIFI-11542
                 URL: https://issues.apache.org/jira/browse/NIFI-11542
             Project: Apache NiFi
          Issue Type: Bug
    Affects Versions: 1.21.0
         Environment: Windows
            Reporter: Paul Kelly


Process detection and termination in nifi-bootstrap/src/main/java/org/apache/nifi/bootstrap/RunNiFi.java rely on running system commands ({{{}ps{}}} and {{{}kill{}}}) to determine if a process is alive and to terminate lingering processes.  The commands used do not exist on Windows.  Therefore, isProcessRunning always returns false and killing lingering processes also fails.  This can lead to the java.exe process sticking around after NiFi is stopped.

Once Java 11 is the minimum, Java's ProcessHandle could be used instead of running system commands, which would allow process detection and termination to work on Windows the same way it does on other operating systems.  Until then, OS detection could be used to run Windows commands on Windows and POSIX commands on everything else.  For example, {{tasklist}} and {{taskkill}} could be used.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)