[PROTON-2039] [python] set listener socket reuseaddr option

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: proton-c-0.27.1
• Fix Version/s: proton-c-0.28.0
• Component/s: python-binding
• Environment: Fedora 29, python 3.7.3 ; Fedora 28, python 2.7.15
• Assignee: Charles E. Rolke
• Reporter: Charles E. Rolke
• Created: 02/May/19 18:49
• Updated: 10/May/19 17:15
• Resolved: 07/May/19 14:31

Description

To demonstrate: execute python/examples/helloworld_direct.py two times within a few seconds. The first time works and the second time fails with an 'Address already in use' error.

The expectation is that this program can be run many times in quick succession.

 

(M=713c3 ?7) chug@unused examples> pwd
/home/chug/git/qpid-proton/python/examples

(M=713c3 ?7) chug@unused examples> ./helloworld_direct.py
Hello World!

(M=713c3 ?7) chug@unused examples> ./helloworld_direct.py
Traceback (most recent call last):
  File "./helloworld_direct.py", line 48, in <module>
    Container(HelloWorld("localhost:8888/examples")).run()
  File "/opt/local/lib64/proton/bindings/python/proton/_reactor.py", line 181, in run
    while self.process(): pass
  File "/opt/local/lib64/proton/bindings/python/proton/_reactor.py", line 238, in process
    event.dispatch(handler)
  File "/opt/local/lib64/proton/bindings/python/proton/_events.py", line 138, in dispatch
    self.dispatch(h, type)
  File "/opt/local/lib64/proton/bindings/python/proton/_events.py", line 135, in dispatch
    _dispatch(handler, type.method, self)
  File "/opt/local/lib64/proton/bindings/python/proton/_events.py", line 115, in _dispatch
    m(*args)
  File "/opt/local/lib64/proton/bindings/python/proton/_handlers.py", line 476, in on_reactor_init
    self.on_start(event)
  File "./helloworld_direct.py", line 32, in on_start
    self.acceptor = event.container.listen(self.url)
  File "/opt/local/lib64/proton/bindings/python/proton/_reactor.py", line 1166, in listen
    acceptor = self.acceptor(url.host, url.port)
  File "/opt/local/lib64/proton/bindings/python/proton/_reactor.py", line 304, in acceptor
    a = Acceptor(self, unicode2utf8(host), int(port), impl)
  File "/opt/local/lib64/proton/bindings/python/proton/_reactor.py", line 678, in __init__
    sock = IO.listen(host, port)
  File "/opt/local/lib64/proton/bindings/python/proton/_io.py", line 46, in listen
    s.bind((host, port))
OSError: [Errno 98] Address already in use

1 (M=713c3 ?7) chug@unused examples> ss -t -a -n | grep 8888
TIME-WAIT   0        0              127.0.0.1:8888            127.0.0.1:42648