I'm curious why people hit this problem. We use mod_python on reviews.reviewboard.org and are aware of its use in lots of large installations, and this problem hasn't come up more than a couple times.
What version of which distro are you using? By any chance is SELinux enabled? Maybe give mod_wsgi a shot? Christian -- Christian Hammond - chip...@chipx86.com Review Board - http://www.reviewboard.org VMware, Inc. - http://www.vmware.com On Thu, Oct 28, 2010 at 11:39 AM, Rob <rrom...@gmail.com> wrote: > See also topic > http://groups.google.com/group/reviewboard/browse_thread/thread/af0e34298072d5af# > > I have seen this problem with every version of ReviewBoard prior to > 1.5. I am stuck at 1.0.4 at the moment. > > What I did to fix this was modify all the calls in the diffiviewer > code below to use os.system() instead of the Python subprocess module. > Something about the subprocess module does NOT play nicely under > mod_python/Apache. > > Now for 1.5, I cannot upgrade because post-review is triggering a call > to the new Paramiko module, which calls into Python's 'platform' > module for the system() call. It turns out platform.system() ALSO > uses subprocess.Popen instead of os.system(). > > I'm glad I'm not the only one seeing this. I bet it's a mod_python > bug, Incidentally, mod_python is now a dead project. > > > > On Oct 27, 10:51 am, Dennis <dennisfraz...@charter.net> wrote: > > Using ReviewBoard 1.5 on Linux with Apache 2.2.15 and mod_python, we > > are getting intermittent but fairly frequent errors when attempting to > > view diffs with Perforce: > > > > (10, 'No child processes') > > > > Traceback (most recent call last): > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/views.py", line 153, in view_diff > > interdiffset, highlighting, True) > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 1063, in get_diff_files > > large_data=True) > > File "/usr/lib/python2.6/site-packages/Djblets-0.6.4-py2.6.egg/ > > djblets/util/misc.py", line 166, in cache_memoize > > data = lookup_callable() > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 1062, in <lambda> > > enable_syntax_highlighting)), > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 548, in get_chunks > > old = get_original_file(filediff) > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 364, in get_original_file > > large_data=True)[0] > > File "/usr/lib/python2.6/site-packages/Djblets-0.6.4-py2.6.egg/ > > djblets/util/misc.py", line 166, in cache_memoize > > data = lookup_callable() > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 363, in <lambda> > > data = cache_memoize(key, lambda: [fetch_file(file, revision)], > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/diffviewer/diffutils.py", line 342, in fetch_file > > data = tool.get_file(file, revision) > > File "/usr/lib/python2.6/site-packages/ReviewBoard-1.5-py2.6.egg/ > > reviewboard/scmtools/perforce.py", line 93, in get_file > > (res, errdata) = p.communicate() > > File "/usr/lib/python2.6/subprocess.py", line 689, in communicate > > return self._communicate(input) > > File "/usr/lib/python2.6/subprocess.py", line 1233, in _communicate > > self.wait() > > File "/usr/lib/python2.6/subprocess.py", line 1157, in wait > > pid, sts = os.waitpid(self.pid, 0) > > OSError: [Errno 10] No child processes > > > > Often, repeating the attempt 2-3 times will eventually result in > > success. Any ideas on root cause or a workaround? > > > > Thanks very much, > > Dennis > > -- > Want to help the Review Board project? Donate today at > http://www.reviewboard.org/donate/ > Happy user? Let us know at http://www.reviewboard.org/users/ > -~----------~----~----~----~------~----~------~--~--- > To unsubscribe from this group, send email to > reviewboard+unsubscr...@googlegroups.com<reviewboard%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/reviewboard?hl=en > -- Want to help the Review Board project? Donate today at http://www.reviewboard.org/donate/ Happy user? Let us know at http://www.reviewboard.org/users/ -~----------~----~----~----~------~----~------~--~--- To unsubscribe from this group, send email to reviewboard+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/reviewboard?hl=en
