Hello,
I have seen this question asked at least another time here at modwsgi group
but it looks like there is no concrete answer until now (?).
I'm streaming quite large media files from django + mod_wsgi but the
streaming terminates abruptly in an almost randomly fashion. The file in
question is about 600MB and the streaming usually terminates between 150 or
200MB streaming progress.
The error message that is written into the log files is the famous
"IOError: failed to write data". Nothing more is written even if I refine
the log level.
The django application when deployed in the development server works
flawlessly. But when deployed in Apache together with mod_wsgi causes the
problem.
I'm running mod_wsgi in "daemon process mode". The server has 4GB of total
RAM, being 3GB available during the test scenario I have isolated.
The django application is returning an iterator like the following, where
data is a urllib2 data stream:
class FileIterWrapper(object):
def __init__(self, data):
self.data = data
self.chunk_size = 4096
def next(self):
data_block = self.data.read(self.chunk_size)
if len(data_block) == 0:
raise StopIteration
else:
return data_block
def __iter__(self):
return self
I really need help with this one. The streaming component of the overall
application could be easily migrated to another technology / application
server but the goal is to stick all with django and mod_wsgi.
Any pointers?
Thank you
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