On May 27, 1:10 pm, Richard <[email protected]> wrote: > On May 26, 9:58 pm, Graham Dumpleton <[email protected]> > wrote: > > > > > > > On May 26, 3:26 pm, Richard <[email protected]> wrote: > > > > Occasionally after heavily using my web2py app I get: > > > > """ > > > Proxy Error > > > > The proxy server received an invalid response from an upstream server. > > > The proxy server could not handle the request GET /. > > > > Reason: Error reading from remote server > > > """ > > > What is generating that? If you are using Apache/mod_wsgi the proxy > > module isn't involved. > > > Is that error from a front end proxy server. > > I installed web2py with this script on > webfaction:http://wiki.webfaction.com/wiki/Web2py-LatestSource > > which uses "Python 2.5 along with Apache + mod_wsgi v2.5" > > > > The apache server is still running but the app won't work until I > > > reset apache. > > > These are the common errors from the Apache log: > > > > server reached MaxClients setting, consider raising the MaxClients > > > setting > > > Which means Apache and/or mod_wsgi daemon mode isn't configured with > > enough processes/threads to handle the concurrent load you are > > getting. > > hmm, it's just me and I am not making concurrent requests. However > each serial request I make returns ~1MB of data. > > > > mod_wsgi (pid=20021): Exception occurred processing WSGI script '/ > > > apachewsgi/web2py/wsgihandler.py'. > > > > IOError: client connection closed > > > Means that client connection got dropped. This can occur when > > impatient user pressed reload on page before it returns response, or > > leaves page via link before returns response. > > > Any ideas? > > > Not sure if the problem is with web2py or Apache configuration. > > > Not really enough information as don't know what MPM you are using, > > how you configured the MPM, how you are using mod_wsgi, how you > > configured it etc etc. > > what does MPM stand for? > None of these looked relevant:http://en.wikipedia.org/wiki/MPM
It is the last one, which is undocumented. See: http://httpd.apache.org/docs/2.2/mpm.html Graham > > If a restart is required, could be that your Python code isn't > > multithread safe and you are experiencing thread deadlocks thereby > > using up threads and locking out new requests. > > hopefully not - I just have a web2py controller returning data from a > sqlite database. > > I have had trouble with webfaction lately so am going to try running > the same app on slicehost and see what happens. > > Richard
