Package: apt-proxy
Version: 1.9.36.1
When backend servers time out, I get the following exception in the
log:
2007/11/08 15:30 CET [Channel,1,172.30.3.1] Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/twisted/python/log.py", line
53, in callWithLogger
return callWithContext({"system": lp}, func, *args, **kw)
File "/usr/lib/python2.4/site-packages/twisted/python/log.py", line
38, in callWithContext
return context.call({ILogContext: newCtx}, func, *args, **kw)
File "/usr/lib/python2.4/site-packages/twisted/python/context.py",
line 59, in callWithContext
return self.currentContext().callWithContext(ctx, func, *args, **kw)
File "/usr/lib/python2.4/site-packages/twisted/python/context.py",
line 37, in callWithContext
return func(*args,**kw)
--- <exception caught here> ---
File
"/usr/lib/python2.4/site-packages/twisted/internet/selectreactor.py", line 139,
in _doReadOrWrite
why = getattr(selectable, method)()
File "/usr/lib/python2.4/site-packages/twisted/internet/tcp.py", line
348, in doRead
return self.protocol.dataReceived(data)
File "/usr/lib/python2.4/site-packages/twisted/protocols/basic.py",
line 232, in dataReceived
why = self.lineReceived(line)
File "/usr/lib/python2.4/site-packages/twisted/web/http.py", line
1004, in lineReceived
self.allContentReceived()
File "/usr/lib/python2.4/site-packages/apt_proxy/apt_proxy.py", line
237, in allContentReceived
http.HTTPChannel.allContentReceived(self)
File "/usr/lib/python2.4/site-packages/twisted/web/http.py", line
1045, in allContentReceived
req.requestReceived(command, path, version)
File "/usr/lib/python2.4/site-packages/twisted/web/http.py", line
601, in requestReceived
self.process()
File "/usr/lib/python2.4/site-packages/apt_proxy/clients.py", line
119, in process
self.cacheEntry.add_request(self)
File "/usr/lib/python2.4/site-packages/apt_proxy/cache.py", line 135,
in add_request
self.get()
File "/usr/lib/python2.4/site-packages/apt_proxy/cache.py", line 189,
in get
self.start_download()
File "/usr/lib/python2.4/site-packages/apt_proxy/cache.py", line 344,
in start_download
self.backend.start_download(self)
File "/usr/lib/python2.4/site-packages/apt_proxy/apt_proxy.py", line
143, in start_download
self.queue.addFile(entry)
File "/usr/lib/python2.4/site-packages/apt_proxy/fetchers.py", line
998, in addFile
q.addFile(cacheEntry)
File "/usr/lib/python2.4/site-packages/apt_proxy/fetchers.py", line
910, in addFile
self.startNextDownload()
File "/usr/lib/python2.4/site-packages/apt_proxy/fetchers.py", line
937, in startNextDownload
if self.fetcher.backendServer.backend != self.activeFile.backend:
exceptions.AttributeError: 'NoneType' object has no attribute 'backend'
It looks like adding "self.fetcher.backendServer is None or" before
that condition solves the problem (you have to add another check
before the log.debug command since it also evaluates
self.fetcher.backendServer.backend).
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