Hi Graham, Thanks for your response. Find my answers as below:
What is your current mod_wsgi configuration? We are using deamon process How long is typical request response time? Min : 2 secs / Max : 15 secs Are the requests high CPU activities, or I/O bound waiting on a backend service like a database? Though the application is connected to a backend mariadb database there are no high cpu activities. The CPU does reaches 50% during the tests. Regards Mahesh On Thu, Jan 3, 2019 at 3:06 AM Graham Dumpleton <graham.dumple...@gmail.com> wrote: > What is your current mod_wsgi configuration? > > How long is typical request response time? > > Are the requests high CPU activities, or I/O bound waiting on a backend > service like a database? > > On 3 Jan 2019, at 2:12 am, Mahesh Vernekar <mahesh.verne...@gmail.com> > wrote: > > We are hosting a web application with configuration as below: > Application: Apache 2.4 / Python 3.4 / Django 2.0 > > Database servers x 6 : 32 GB / 8 cores behind load balancer > Web servers x 6 : 4 GB / 2 cores behind load balancer > > Setup is in AWS so we are using AWS-Elastic load balancer. > > The application supports 2000 concurrent connections but failing for 2500 > and beyond. > In load testing around 1800 requests are failing out of 3.5 lakh total > requests. > > In the apache error log we are seeing the error message as below ? > > [Wed Jan 02 14:05:53.349209 2019] [wsgi:error] [pid 21559:tid > 139722408036096] (11)Resource temporarily unavailable: [client > 172.31.12.61:51748] mod_wsgi (pid=21559): Unable to connect to WSGI > daemon process 'pe-ta-dev.knowdl.com' on '/run/httpd/wsgi.21472.0.1.sock' > after multiple attempts as listener backlog limit was exceeded or the > socket does not exist. > > > Any idea how we can resolve the issue ? > > > > Regards > > Mahesh > > -- > You received this message because you are subscribed to the Google Groups > "modwsgi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to modwsgi+unsubscr...@googlegroups.com. > To post to this group, send email to modwsgi@googlegroups.com. > Visit this group at https://groups.google.com/group/modwsgi. > For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to a topic in the > Google Groups "modwsgi" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/modwsgi/aIcET2VqJbA/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > modwsgi+unsubscr...@googlegroups.com. > To post to this group, send email to modwsgi@googlegroups.com. > Visit this group at https://groups.google.com/group/modwsgi. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "modwsgi" group. To unsubscribe from this group and stop receiving emails from it, send an email to modwsgi+unsubscr...@googlegroups.com. To post to this group, send email to modwsgi@googlegroups.com. Visit this group at https://groups.google.com/group/modwsgi. For more options, visit https://groups.google.com/d/optout.
