Opened at 2010-08-03T18:28:54Z
Last modified at 2010-08-05T19:23:36Z
#1154 closed defect
mplayer triggers two bugs in Tahoe's new downloader — at Version 6
Reported by: | francois | Owned by: | warner |
---|---|---|---|
Priority: | critical | Milestone: | 1.8.0 |
Component: | code-network | Version: | 1.8β |
Keywords: | download regression random-access error | Cc: | francois@… |
Launchpad Bug: |
Description (last modified by francois)
I tried to play a movie hosted on a Tahoe-LAFS grid with 'mplayer http://127.0.0.1:3456/file/URI-blah/@@named=/test.avi'. The error seems to be related to mplayer seeking at the end of the file for downloading the AVI index before seeking back to the beginning for the actual rendering.
Preventing mplayer from reading the index with the '--noidx' parameter avoid this error.
2010-08-03 20:06:40+0200 [-] Unhandled Error Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/twisted/application/app.py", line 348, in runReactorWithLogging reactor.run() File "/usr/lib/python2.6/dist-packages/twisted/internet/base.py", line 1170, in run self.mainLoop() File "/usr/lib/python2.6/dist-packages/twisted/internet/base.py", line 1179, in mainLoop self.runUntilCurrent() File "/usr/lib/python2.6/dist-packages/twisted/internet/base.py", line 778, in runUntilCurrent call.func(*call.args, **call.kw) --- <exception caught here> --- File "/usr/lib/pymodules/python2.6/foolscap/eventual.py", line 26, in _turn cb(*args, **kwargs) File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/share.py", line 197, in loop self._do_loop() File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/share.py", line 253, in _do_loop wanted, needed = self._desire() File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/share.py", line 611, in _desire % (want_it.dump(), need_it.dump(), gotta_gotta_have_it.dump())) File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/util/spans.py", line 143, in dump return "len=%d: %s" % (len(self), exceptions.TypeError: __len__() should return an int
2010-08-03 20:06:51+0200 [HTTPChannel,198,127.0.0.1] Unhandled Error Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/twisted/application/app.py", line 348, in runReactorWithLogging reactor.run() File "/usr/lib/python2.6/dist-packages/twisted/internet/base.py", line 1170, in run self.mainLoop() File "/usr/lib/python2.6/dist-packages/twisted/internet/base.py", line 1182, in mainLoop self.doIteration(t) File "/usr/lib/python2.6/dist-packages/twisted/internet/selectreactor.py", line 140, in doSelect _logrun(selectable, _drdw, selectable, method, dict) --- <exception caught here> --- File "/usr/lib/python2.6/dist-packages/twisted/python/log.py", line 84, in callWithLogger return callWithContext({"system": lp}, func, *args, **kw) File "/usr/lib/python2.6/dist-packages/twisted/python/log.py", line 69, in callWithContext return context.call({ILogContext: newCtx}, func, *args, **kw) File "/usr/lib/python2.6/dist-packages/twisted/python/context.py", line 59, in callWithContext return self.currentContext().callWithContext(ctx, func, *args, **kw) File "/usr/lib/python2.6/dist-packages/twisted/python/context.py", line 37, in callWithContext return func(*args,**kw) File "/usr/lib/python2.6/dist-packages/twisted/internet/selectreactor.py", line 156, in _doReadOrWrite self._disconnectSelectable(selectable, why, method=="doRead") File "/usr/lib/python2.6/dist-packages/twisted/internet/posixbase.py", line 191, in _disconnectSelectable selectable.readConnectionLost(f) File "/usr/lib/python2.6/dist-packages/twisted/internet/tcp.py", line 508, in readConnectionLost self.connectionLost(reason) File "/usr/lib/python2.6/dist-packages/twisted/internet/tcp.py", line 513, in connectionLost abstract.FileDescriptor.connectionLost(self, reason) File "/usr/lib/python2.6/dist-packages/twisted/internet/abstract.py", line 64, in connectionLost self.producer.stopProducing() File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/segmentation.py", line 146, in stopProducing self._cancel_segment_request.cancel() File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/node.py", line 27, in cancel self._f(self) File "/home/francois/dev/tahoe-lafs-ticket798-1.7.1-r4653/src/allmydata/immutable/downloader/node.py", line 468, in _cancel_request if self._active_segment.segnum not in segnums: exceptions.AttributeError: 'NoneType' object has no attribute 'segnum'
Change History (6)
comment:1 Changed at 2010-08-03T18:35:08Z by francois
- Keywords download added
comment:2 Changed at 2010-08-03T18:36:43Z by francois
comment:3 Changed at 2010-08-03T21:38:59Z by warner
- Milestone changed from undecided to 1.8.0
- Status changed from new to assigned
ooh, good bugs. I'll look into them.
comment:4 Changed at 2010-08-04T01:36:31Z by davidsarah
- Component changed from code to code-network
- Keywords regression random-access error added
- Priority changed from major to critical
- Version changed from n/a to 1.8β
comment:5 Changed at 2010-08-04T01:37:25Z by davidsarah
- Description modified (diff)
comment:6 Changed at 2010-08-04T07:53:55Z by francois
- Description modified (diff)
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This ticket is related to #798.