Tools » teuthology

Tamil asked me to look into this.

It took some digging but I think I figured this out.

Testing on ubuntu it appears doing multiple connections when running with -X nothing is blocked (all in a single process). I assume it times out on rhel, centos, etc.. because in my testing with the same config file when I open a second connection it is blocked until the first one is stopped. I think I traced this to worker.c not being compiled in httpd:

ubuntu:

ubuntu@plana05:~$ apache2 -l
Compiled in modules:
core.c
mod_log_config.c
mod_logio.c
mod_version.c
worker.c
http_core.c
mod_so.c

Centos:

[root@vpm010 ~]# httpd -l
Compiled in modules:
core.c
prefork.c
http_core.c
mod_so.c

So anyway I found out centos has a seperate httpd (httpd.worker) which has worker.c copmiled in instead of the default (prefork):

[root@vpm010 ~]# httpd.worker -l
Compiled in modules:
core.c
worker.c
http_core.c
mod_so.c

When testing running using httpd.worker (instead of http) I am not getting blocked requests like before and I am able to run with -X so I think simply changing teuthology to use httpd.worker instead of just 'httpd' might get around this issue. Let me know.

That sounds like a good fix to me.