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Asif Jan
asif.jan at epfl.ch
Wed Jun 1 13:41:29 EDT 2005
Hi Jim I disabled the ldap but the problem persists ..... Here is the log [Wed Jun 01 19:39:18 2005] [notice] mod_python: Creating 32 session mutexes based on 150 max processes and 0 max threads. [Wed Jun 01 19:39:18 2005] [notice] Digest: generating secret for digest authentication ... [Wed Jun 01 19:39:18 2005] [notice] Digest: done [Wed Jun 01 19:39:19 2005] [notice] Apache/2.0.52 (Unix) DAV/2 mod_python/3.1.4 Python/2.3 configured -- resuming normal operations [Wed Jun 01 19:39:19 2005] [info] Server built: Sep 30 2004 18:20:43 [Wed Jun 01 19:39:19 2005] [debug] prefork.c(955): AcceptMutex: sysvsem (default: sysvsem) [Wed Jun 01 19:39:53 2005] [error] [client 127.0.0.1] File does not exist: /Library/Apache2/htdocs/favicon.ico [Wed Jun 01 19:39:55 2005] [error] [client 127.0.0.1] File does not exist: /Library/Apache2/htdocs/favicon.ico [Wed Jun 01 19:39:58 2005] [notice] mod_python: (Re)importing module 'mptest' [Wed Jun 01 19:39:58 2005] [warn] (13)Permission denied: Failed to acquire global mutex lock at index 0 [Wed Jun 01 19:39:58 2005] [error] [client 127.0.0.1] PythonHandler mptest: Traceback (most recent call last):, referer: http://localhost/MODPYTHON/ [Wed Jun 01 19:39:58 2005] [error] [client 127.0.0.1] PythonHandler mptest: File "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ python2.3/site-packages/mod_python/apache.py", line 299, in HandlerDispatch\n result = object(req), referer: http://localhost/MODPYTHON/ [Wed Jun 01 19:39:58 2005] [error] [client 127.0.0.1] PythonHandler mptest: File "/Library/Apache2/htdocs/MODPYTHON/mptest.py", line 5, in handler\n _apache._global_lock(req.server, None, 0), referer: http://localhost/MODPYTHON/ [Wed Jun 01 19:39:58 2005] [error] [client 127.0.0.1] PythonHandler mptest: ValueError: Failed to acquire global mutex lock, referer: http://localhost/MODPYTHON/ Regards Asif On Jun 1, 2005, at 6:42 PM, Jim Gallacher wrote: > Asif, > > I'm probably way out of my depth here, but could ldap be competing for > the mutexes as they are a limited system resource (on linux anyway)? > > If ldap is a loadable module, what happens if you disable it in the > apache config? > > Jim > > Asif Jan wrote: >> Hi Jim >> Here is the information; >> [Wed Jun 01 18:12:39 2005] [notice] mod_python: Creating 32 session >> mutexes based on 150 max processes and 0 max threads. >> [Wed Jun 01 18:12:40 2005] [notice] LDAP: Built with OpenLDAP LDAP SDK >> [Wed Jun 01 18:12:40 2005] [notice] LDAP: SSL support unavailable >> [Wed Jun 01 18:12:40 2005] [notice] Digest: generating secret for >> digest authentication ... >> [Wed Jun 01 18:12:40 2005] [notice] Digest: done >> [Wed Jun 01 18:12:40 2005] [debug] util_ldap.c(1432): INIT global >> mutex /var/tmp/tmp.0.UjOapM in child 5476 >> [Wed Jun 01 18:12:40 2005] [debug] util_ldap.c(1432): INIT global >> mutex /var/tmp/tmp.0.UjOapM in child 5477 >> [Wed Jun 01 18:12:40 2005] [debug] util_ldap.c(1432): INIT global >> mutex /var/tmp/tmp.0.UjOapM in child 5478 >> [Wed Jun 01 18:12:40 2005] [debug] util_ldap.c(1432): INIT global >> mutex /var/tmp/tmp.0.UjOapM in child 5479 >> [Wed Jun 01 18:12:40 2005] [debug] util_ldap.c(1432): INIT global >> mutex /var/tmp/tmp.0.UjOapM in child 5480 >> [Wed Jun 01 18:12:40 2005] [notice] Apache/2.0.52 (Unix) >> mod_python/3.1.4 Python/2.3 DAV/2 configured -- resuming normal >> operations >> [Wed Jun 01 18:12:40 2005] [info] Server built: Sep 30 2004 18:20:43 >> [Wed Jun 01 18:12:40 2005] [debug] prefork.c(955): AcceptMutex: >> sysvsem (default: sysvsem) >> Wed Jun 01 18:13:44 2005] [notice] mod_python: (Re)importing module >> 'mptest' >> [Wed Jun 01 18:13:44 2005] [warn] (13)Permission denied: Failed to >> acquire global mutex lock at index 0 >> [Wed Jun 01 18:13:44 2005] [error] [client 127.0.0.1] PythonHandler >> mptest: Traceback (most recent call last):, referer: >> http://localhost/MODPYTHON/ >> [Wed Jun 01 18:13:44 2005] [error] [client 127.0.0.1] PythonHandler >> mptest: File >> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >> python2.3/site-packages/mod_python/apache.py", line 299, in >> HandlerDispatch\n result = object(req), referer: >> http://localhost/MODPYTHON/ >> [Wed Jun 01 18:13:44 2005] [error] [client 127.0.0.1] PythonHandler >> mptest: File "/Library/Apache2/htdocs/MODPYTHON/mptest.py", line 5, >> in handler\n _apache._global_lock(req.server, None, 0), referer: >> http://localhost/MODPYTHON/ >> [Wed Jun 01 18:13:44 2005] [error] [client 127.0.0.1] PythonHandler >> mptest: ValueError: Failed to acquire global mutex lock, referer: >> http://localhost/MODPYTHON/ >> Regards >> Asif >> On Jun 1, 2005, at 5:39 PM, Jim Gallacher wrote: >>> Hi Asif, >>> >>> Is there any indication in the apache error.log that the mutexes >>> where created on apache startup? You should see something like: >>> >>> [Wed Jun 01 15:38:39 2005] [notice] mod_python: Creating 32 session >>> mutexes based on 6 max processes and 25 max threads. >>> [Wed Jun 01 15:38:39 2005] [notice] Apache/2.0.54 (Debian GNU/Linux) >>> mod_python/3.2.0-dev-20050519 Python/2.3.5 configured -- resuming >>> normal operations >>> >>> Jim >>> >>> >>> Asif Jan wrote: >>> >>>> Hi Jim, >>>> Here is the output from the log file ( I saved the code in mptest >>>> file) >>>> [Wed Jun 01 17:23:15 2005] [notice] mod_python: (Re)importing >>>> module 'mptest' >>>> [Wed Jun 01 17:23:15 2005] [warn] (13)Permission denied: Failed to >>>> acquire global mutex lock at index 0 >>>> [Wed Jun 01 17:23:15 2005] [error] [client 127.0.0.1] PythonHandler >>>> mptest: Traceback (most recent call last):, referer: >>>> http://localhost/MODPYTHON/ >>>> [Wed Jun 01 17:23:15 2005] [error] [client 127.0.0.1] PythonHandler >>>> mptest: File >>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>> python2.3/site-packages/mod_python/apache.py", line 299, in >>>> HandlerDispatch\n result = object(req), referer: >>>> http://localhost/MODPYTHON/ >>>> [Wed Jun 01 17:23:15 2005] [error] [client 127.0.0.1] PythonHandler >>>> mptest: File "/Library/Apache2/htdocs/MODPYTHON/mptest.py", >>>> line 5, in handler\n _apache._global_lock(req.server, None, >>>> 0), referer: http://localhost/MODPYTHON/ >>>> [Wed Jun 01 17:23:15 2005] [error] [client 127.0.0.1] PythonHandler >>>> mptest: ValueError: Failed to acquire global mutex lock, referer: >>>> http://localhost/MODPYTHON/ >>>> Regards >>>> Asif >>>> On Jun 1, 2005, at 5:02 PM, Jim Gallacher wrote: >>>> >>>>> Try restarting apache and run the following test handler: >>>>> >>>>> import _apache >>>>> >>>>> def handler(req): >>>>> req.content_type = 'text/plain' >>>>> req.write('begin lock test\n') >>>>> _apache._global_lock(req.server, None, 0) >>>>> _apache._global_unlock(req.server, None, 0) >>>>> req.write('begin lock test\n') >>>>> return apache.OK >>>>> >>>>> Check the apache error.log and post any errors (including apache >>>>> startup) regarding mutexes or locks. >>>>> >>>>> Regards, >>>>> Jim >>>>> >>>>> >>>>> Asif Jan wrote: >>>>> >>>>>> By the way I get same error when using the python scripts as well >>>>>> Mod_python error: "PythonHandler mod_python.publisher" >>>>>> Traceback (most recent call last): >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/apache.py", line 299, in >>>>>> HandlerDispatch >>>>>> result = object(req) >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/publisher.py", line 136, in >>>>>> handler >>>>>> result = util.apply_fs_data(object, req.form, req=req) >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/util.py", line 361, in >>>>>> apply_fs_data >>>>>> return object(**args) >>>>>> File "/Library/Apache2/htdocs/NEOBASE/mptest.py", line 5, in >>>>>> test >>>>>> sess = Session.Session(req) >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/Session.py", line 389, in >>>>>> Session >>>>>> timeout=timeout, lock=lock) >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/Session.py", line 294, in >>>>>> __init__ >>>>>> timeout=timeout, lock=lock) >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/Session.py", line 131, in >>>>>> __init__ >>>>>> self.lock() # lock new sid >>>>>> File >>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>> python2.3/site-packages/mod_python/Session.py", line 215, in lock >>>>>> _apache._global_lock(self._req.server, self._sid) >>>>>> ValueError: Failed to acquire global mutex lock >>>>>> On Jun 1, 2005, at 3:17 PM, Asif Jan wrote: >>>>>> >>>>>>> >>>>>>> Hi , >>>>>>> >>>>>>> When I try to use "session" object inside a PSP page I get >>>>>>> following error ( I am using Mac OS X 10.3.9 , Python 2.3 >>>>>>> (Apple), and mod_python 3.1.4). >>>>>>> >>>>>>> Is it something specific to Mac OS X ? >>>>>>> >>>>>>> By the way in my psp page I am doing a very simple thing i.e. >>>>>>> >>>>>>> if not session.is_new(): >>>>>>> # do something >>>>>>> else: >>>>>>> # do something else >>>>>>> >>>>>>> >>>>>>> Mod_python error: "PythonHandler mod_python.psp" >>>>>>> >>>>>>> Traceback (most recent call last): >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/apache.py", line 299, in >>>>>>> HandlerDispatch >>>>>>> result = object(req) >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/psp.py", line 297, in handler >>>>>>> p.run() >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/psp.py", line 191, in run >>>>>>> session = Session.Session(req) >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/Session.py", line 389, in >>>>>>> Session >>>>>>> timeout=timeout, lock=lock) >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/Session.py", line 294, in >>>>>>> __init__ >>>>>>> timeout=timeout, lock=lock) >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/Session.py", line 131, in >>>>>>> __init__ >>>>>>> self.lock() # lock new sid >>>>>>> >>>>>>> File >>>>>>> "/System/Library/Frameworks/Python.framework/Versions/2.3/lib/ >>>>>>> python2.3/site-packages/mod_python/Session.py", line 215, in >>>>>>> lock >>>>>>> _apache._global_lock(self._req.server, self._sid) >>>>>>> >>>>>>> ValueError: Failed to acquire global mutex lock >>>>>>> >>>>>>> _______________________________________________ >>>>>>> Mod_python mailing list >>>>>>> Mod_python at modpython.org >>>>>>> http://mailman.modpython.org/mailman/listinfo/mod_python >>>>>>> >>>>>>> >>>>>> Asif Jan >>>>>> Research Assistant >>>>>> Brain Mind Institute >>>>>> Ecole Polytechnique Federale De Lausanne (EPFL) >>>>>> Lausanne Switzerland >>>>>> Tel +41216939529 >>>>>> _______________________________________________ >>>>>> Mod_python mailing list >>>>>> Mod_python at modpython.org >>>>>> http://mailman.modpython.org/mailman/listinfo/mod_python >>>>> >>>>> >>>>> >>>>> >>>> Asif Jan >>>> Research Assistant >>>> Brain Mind Institute >>>> Ecole Polytechnique Federale De Lausanne (EPFL) >>>> Lausanne Switzerland >>>> Tel +41216939529 >>>> _______________________________________________ >>>> Mod_python mailing list >>>> Mod_python at modpython.org >>>> http://mailman.modpython.org/mailman/listinfo/mod_python >>> >>> >>> >> Asif Jan >> Research Assistant >> Brain Mind Institute >> Ecole Polytechnique Federale De Lausanne (EPFL) >> Lausanne Switzerland >> Tel +41216939529 >> _______________________________________________ >> Mod_python mailing list >> Mod_python at modpython.org >> http://mailman.modpython.org/mailman/listinfo/mod_python > > Asif Jan Research Assistant Brain Mind Institute Ecole Polytechnique Federale De Lausanne (EPFL) Lausanne Switzerland Tel +41216939529
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