[jira] [Created] (THRIFT-1617) TProcessPoolServer does not shutdown cleanly

["Jonathan Kaczynski (JIRA)" <ji...@apache.org>]

Jonathan Kaczynski created THRIFT-1617:
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             Summary: TProcessPoolServer does not shutdown cleanly
                 Key: THRIFT-1617
                 URL: https://issues.apache.org/jira/browse/THRIFT-1617
             Project: Thrift
          Issue Type: Bug
          Components: Python - Library
    Affects Versions: 0.8
         Environment: linux, but I assume all
            Reporter: Jonathan Kaczynski


I haven't been able to get TProcessPoolServer to shutdown cleanly.

I tried stopping TProcessPoolServer in the finally clause of a try-block around server.serve(), [https://gist.github.com/2828980], but the child processes became orphaned.

Then, I tried using the code from the test I found, http://svn.apache.org/repos/asf/thrift/trunk/test/py/TestServer.py, but the processes still didn't terminate: https://gist.github.com/2829045

I commented on THRIFT-1083, and Dvir responded with an updated version of TProcessPoolServer.py: [THRIFT-1083|https://issues.apache.org/jira/browse/THRIFT-1083?focusedCommentId=13280566&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13280566]. Here's how I'm using it: https://gist.github.com/2771144

I'm sending the parent process the TERM signal, and noticed two issues:

1. The child processes won't terminate until they have attempted to field a request. If server.stop() is called before it has fielded a request, the child process will continue running until it services a request and then it will shutdown.

2. The parent process never shuts down.

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