[disclaimer: I'm a twisted newbie :) ]
On Sat, Jun 18, 2011 at 09:56:51AM +0300, Orestis Markou wrote:
> a) someone looking at the code and pointing out possible bugs or ways it
> could be improved or
I also reproduce the problem, so I tried to shutdown the HTTP GET first
to see what was going on, and I noticed two errors while running the code:
1) got_dns_error() is either called with a Twisted failure object (if
the query fails) or with a Python exception if the address can't be
resolved in _lookupName(), and the latter one doesn't have the
getErrorMessage() method.
I added a quick isinstance() call and now DNS resolving continues
until all the names pool has been emptied.
2) However, at the end of the DNS lookups, I got the following error
2011-06-18 20:15:26+0900 [DNSProtocol,client] Unhandled Error
Traceback (most recent call last):
File "monitor7.py", line 126, in <module>
reactor.run()
File "/twisted/internet/base.py", line 1169, in run
self.mainLoop()
File "/twisted/internet/base.py", line 1181, in mainLoop
self.doIteration(t)
File "/twisted/internet/pollreactor.py", line 167, in doPoll
log.callWithLogger(selectable, _drdw, selectable, fd, event)
--- <exception caught here> ---
File "/twisted/python/log.py", line 84, in callWithLogger
return callWithContext({"system": lp}, func, *args, **kw)
File "/twisted/python/log.py", line 69, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "/twisted/python/context.py", line 118, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/twisted/python/context.py", line 81, in callWithContext
return func(*args,**kw)
File "/twisted/internet/posixbase.py", line 587, in _doReadOrWrite
self._disconnectSelectable(selectable, why, inRead)
File "/twisted/internet/posixbase.py", line 257, in _disconnectSelectable
selectable.readConnectionLost(f)
File "/twisted/internet/tcp.py", line 221, in readConnectionLost
self.connectionLost(reason)
File "/twisted/internet/tcp.py", line 386, in connectionLost
Connection.connectionLost(self, reason)
File "/twisted/internet/tcp.py", line 232, in connectionLost
protocol.connectionLost(reason)
File "/twisted/names/dns.py", line 1863, in connectionLost
self.controller.connectionLost(self)
exceptions.AttributeError: Resolver instance has no attribute
'connectionLost'
and I have no idea what's going on here. In this case, the
DeferredList callback never got called.
My 2 cents,
Jonathan
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