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Re: [tor-bugs] #3834 [Torflow]: Postgre bandwidth scanner has halted on moria
#3834: Postgre bandwidth scanner has halted on moria
-----------------------+----------------------------------------------------
Reporter: mikeperry | Owner: aagbsn
Type: defect | Status: new
Priority: major | Milestone:
Component: Torflow | Version:
Keywords: | Parent:
Points: | Actualpoints:
-----------------------+----------------------------------------------------
Comment(by aagbsn):
I noticed this comment in TorCtl.py:
# eventThread provides a more reliable indication of when we are done.
# The _loop thread won't always die when self.close() is called.
ah.
I removed the call to call self._thread.join(), where _thread is the _loop
thread. I'm not sure if this will have any other side effects.
Replying to [comment:21 aagbsn]:
> Clarification: the scanner freezes after this Traceback and the child
process does not exit.
>
> Replying to [comment:20 aagbsn]:
> > Unfortunately the fix (call TorCtl.Connection.close() in the atexit
handler, see: github link above) does not work 100% of the time. Here is a
traceback:
> >
> > DEBUG[Fri Sep 02 06:34:28 2011]:0.622465133667 CIRC 2396 CLOSED
$0C8B86A3FB22EF3E92ABEEA80ADF879A26B59BA8,$6620BECAFC3AB3E2A255A975239F6EF4EC542F16
REASON=REQUESTED
> > DEBUG[Fri Sep 02 06:34:28 2011]:Close refcount 0 for
0C8B86A3FB22EF3E92ABEEA80ADF879A26B59BA8
> > DEBUG[Fri Sep 02 06:34:28 2011]:Close refcount 0 for
6620BECAFC3AB3E2A255A975239F6EF4EC542F16
> > DEBUG[Fri Sep 02 06:34:28 2011]:1314945267.4 0.620501041412 CIRC 2402
CLOSED
$7F4C602A9E0498F244AAA002783E7B8DEB4875EF,$FCC3151A288A58AAD8B6D81E2FB3244DE6526375
REASON=REQUESTED
> > DEBUG[Fri Sep 02 06:34:28 2011]:0.638204097748 CIRC 2402 CLOSED
$7F4C602A9E0498F244AAA002783E7B8DEB4875EF,$FCC3151A288A58AAD8B6D81E2FB3244DE6526375
REASON=REQUESTED
> > DEBUG[Fri Sep 02 06:34:28 2011]:Close refcount 0 for
7F4C602A9E0498F244AAA002783E7B8DEB4875EF
> > DEBUG[Fri Sep 02 06:34:28 2011]:Close refcount 0 for
FCC3151A288A58AAD8B6D81E2FB3244DE6526375
> > DEBUG[Fri Sep 02 06:36:50 2011]:Ignoring stream: 3047
> > DEBUG[Fri Sep 02 06:36:51 2011]:Wrote stats
> > NOTICE[Fri Sep 02 06:36:51 2011]:Tor closed control connection.
Exiting event thread.
> > DEBUG[Fri Sep 02 06:36:51 2011]:Ignoring stream: 3047
> > DEBUG[Fri Sep 02 06:36:51 2011]:Ignoring stream: 3047
> > DEBUG[Fri Sep 02 06:36:52 2011]:Deleting ignored stream: 3045
> >
> > ...snip...
> >
> > DEBUG[Fri Sep 02 06:36:54 2011]:78.6796159744 CIRC 2417 EXTENDED
$AC92AA2248170F4DA7B886932CD430AB0945D2B1
> > DEBUG[Fri Sep 02 06:36:54 2011]:Ignoring circ 2417
> > DEBUG[Fri Sep 02 06:36:54 2011]:78.6807179451 CIRC 2417 BUILT
$AC92AA2248170F4DA7B886932CD430AB0945D2B1
> > DEBUG[Fri Sep 02 06:36:54 2011]:Ignoring circ 2417
> > DEBUG[Fri Sep 02 06:36:54 2011]:Ignoring stream: 3066
> > DEBUG[Fri Sep 02 06:36:55 2011]:Ignoring stream: 3066
> > DEBUG[Fri Sep 02 06:36:55 2011]:Deleting ignored stream: 3066
> > WARN[Fri Sep 02 06:36:55 2011]:No event for: 650 NEWCONSENSUS
> > Traceback (most recent call last):
> > File "../../TorCtl/TorCtl.py", line 712, in _eventLoop
> > self._handleFn(timestamp, reply)
> > File "../../TorCtl/TorCtl.py", line 1337, in _handle1
> > self._map1.get(event.event_name, self.unknown_event)(event)
> > File "../../TorCtl/PathSupport.py", line 1834, in
new_consensus_event
> > TorCtl.ConsensusTracker.new_consensus_event(self, n)
> > File "../../TorCtl/TorCtl.py", line 1679, in new_consensus_event
> > self._read_routers(self.ns_map.values())
> > File "../../TorCtl/TorCtl.py", line 1597, in _read_routers
> > routers = self.c.read_routers(nslist) # Sets .down if 3,4,5
> > File "../../TorCtl/TorCtl.py", line 1073, in read_routers
> > r = self.get_router(ns)
> > File "../../TorCtl/TorCtl.py", line 1054, in get_router
> > desc = self.sendAndRecv("GETINFO desc/id/" + ns.idhex +
"\r\n")[0][2]
> > File "../../TorCtl/TorCtl.py", line 862, in sendAndRecv
> > lines = self._sendImpl(self._doSend, msg)
> > File "../../TorCtl/TorCtl.py", line 729, in _sendImpl
> > raise self._closedEx
> > TorCtlClosed
> >
> > This seems like it may be related to #1329; perhaps atagar may have
some insight.
> >
> > Replying to [comment:7 aagbsn]:
> > > This is caused by the main thread exiting before the eventLoop
thread; because we weren't exiting cleanly. I have a fix for this in my
testing branch that just needs_review before we can merge it.
> > >
> > >
https://github.com/aagbsn/torflow/commit/09f232bffa3cf51db21c53c81e544ad977bcb335
> > >
> > > Replying to [comment:5 arma]:
> > > > Scanner 4 has a traceback:
> > > > {{{
> > > > Exception in thread EventLoop (most likely raised during
interpreter shutdown):
> > > > Traceback (most recent call last):
> > > > File "/usr/lib/python2.5/threading.py", line 486, in
__bootstrap_inner
> > > > File "/usr/lib/python2.5/threading.py", line 446, in run
> > > > File "../../TorCtl/TorCtl.py", line 715, in _eventLoop
> > > > File "../../TorCtl/TorUtil.py", line 360, in plog
> > > > File "/usr/lib/python2.5/logging/__init__.py", line 1056, in log
> > > > File "/usr/lib/python2.5/logging/__init__.py", line 1100, in
_log
> > > > File "/usr/lib/python2.5/logging/__init__.py", line 1080, in
makeRecord
> > > > File "/usr/lib/python2.5/logging/__init__.py", line 258, in
__init__
> > > > <type 'exceptions.TypeError'>: 'NoneType' object is not callable
> > > > }}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/3834#comment:23>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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