Re: [modwsgi] Re: mod_wsgi (3.4-14) / Apache 2.4.12 / cx_oracle 5.2 / Oracle 12 / Red Hat (6.7) / Django 1.8.2 hanging under load

Looks like a lock isn't being freed or a lock priority inversion, etc. Tricky. On Mon, Sep 28, 2015 at 3:10 PM, 'Lukasz Szajkowski' via modwsgi < modwsgi@googlegroups.com> wrote: > The actual stack trace while hanging is > #0 0x7f047ff099b0 in sem_wait () from /lib64/libpthread.so.0 > #1

Re: [modwsgi] mod_wsgi (3.4-14) / Apache 2.4.12 / cx_oracle 5.2 / Oracle 12 / Red Hat (6.7) / Django 1.8.2 hanging under load

Thanks, Interesting hypothesis but: - we use dedicated connection with persistent connection in Django - the problem is observed in performance testing under constant heavy load On Monday, 28 September 2015 17:08:28 UTC+1, Bill, KE1G wrote: > > One possibility: > > If cx_oracle is using

Re: [modwsgi] mod_wsgi (3.4-14) / Apache 2.4.12 / cx_oracle 5.2 / Oracle 12 / Red Hat (6.7) / Django 1.8.2 hanging under load

One possibility: If cx_oracle is using connection pooling and it is not round robin (or you just have large inactivity periods) AND There is a firewall between cx_oracle and oracle that times out unused connections. Then the firewall could be locking traffic for connections that

[modwsgi] mod_wsgi (3.4-14) / Apache 2.4.12 / cx_oracle 5.2 / Oracle 12 / Red Hat (6.7) / Django 1.8.2 hanging under load

Hi , I have a problem with mod_wsgi (3.4-14) / Apache 2.4.12 / cx_oracle 5.2 / Oracle 12 / Django 1.8.2 hanging under bigger load. The configuration was used for the last several month in dev / testing. Now when deployed to production environment Apache hangs after couple of minutes under

Re: [modwsgi] WSGIScriptAlias and WebDAV

> On 29 Sep 2015, at 11:17 am, Graham Dumpleton > wrote: > > >> On 29 Sep 2015, at 10:38 am, Josh Rodriguez wrote: >> >> I'm trying to use Flask (via mod_wsgi) and mod_dav in the same location. I >> want mod_wsgi/Python to handle GET and