From issues-reply at bitbucket.org  Mon Sep  3 18:10:17 2012
From: issues-reply at bitbucket.org (=?utf-8?q?Walter_D=C3=B6rwald?=)
Date: Mon, 03 Sep 2012 16:10:17 -0000
Subject: [execnet-dev] [hpk42/execnet] Threading exception on Python 3.2
	(issue #9)
Message-ID: <55c1a77f957ea0a7277af3454b73972d@bitbucket.org>

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New issue 9: Threading exception on Python 3.2
https://bitbucket.org/hpk42/execnet/issue/9/threading-exception-on-python-32

Walter D?rwald:

I am using the following test script:

{{{
#!python
import datetime
import execnet

i = 0
while True:
	print(datetime.datetime.now(), i)
	group = execnet.Group()
	gw = group.makegateway("ssh=user at host")
	ch = gw.remote_exec("import time ; time.sleep(2.0)")
	group.terminate(timeout=1.0)
	i += 1
}}}

After about 250 runs of the loop body I get the following output:

{{{
2012-09-03 18:04:10.822562 253
2012-09-03 18:04:11.205508 254
Traceback (most recent call last):
  File "/var/home/walter/.local/lib/python3.2/site-packages/execnet-1.1-py3.2.egg/execnet/threadpool.py", line 130, in dispatch
    thread, _ = self._ready.popitem()
KeyError: 'popitem(): dictionary is empty'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "gurk.py", line 10, in <module>
    group.terminate(timeout=1.0)
  File "/var/home/walter/.local/lib/python3.2/site-packages/execnet-1.1-py3.2.egg/execnet/multi.py", line 168, in terminate
    for gw in self._gateways_to_join])
  File "/var/home/walter/.local/lib/python3.2/site-packages/execnet-1.1-py3.2.egg/execnet/multi.py", line 251, in safe_terminate
    reply = workerpool.dispatch(termkill, termfunc, killfunc)
  File "/var/home/walter/.local/lib/python3.2/site-packages/execnet-1.1-py3.2.egg/execnet/threadpool.py", line 135, in dispatch
    thread = self._newthread()
  File "/var/home/walter/.local/lib/python3.2/site-packages/execnet-1.1-py3.2.egg/execnet/threadpool.py", line 141, in _newthread
    thread.start()
  File "/var/home/walter/.local/lib/python3.2/threading.py", line 683, in start
    _start_new_thread(self._bootstrap, ())
_thread.error: can't start new thread
}}}



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