Public bug reported:
horizon version 13.0.0-1.el7 (Queens) on centos 7.4.1708
After some time working on the dashboard, it stops working and throw
this error in the error log
[Wed Jul 04 22:49:33.744241 2018] [:error] [pid 23924] [remote
10.144.187.237:52] IOError: [Errno 24] Too many open files: '/usr/share
/openstack-dashboard/openstack_dashboard/templates/500.html'
if we check the open files of this process 23924
ls -l /proc/23924/fd | wc -l
1023
even if we increase the nofile limit of this process, it doesn't help as the
open files is always increasing
the problem is cleared if we restart the httpd process, but then the open files
will increase again
how to reproduce
1- login to the dashboard
2- get the pid from the error_log file
[Wed Jul 04 22:50:58.620832 2018] [:error] [pid 23924] INFO
openstack_auth.forms Login successful for user "demo" using domain "default"
3- browse the dashboard different menus, specially the network topology tab
4- monitor the open files no. with ls -l /proc/<pid>/fd | wc -l
observation
the no. is always increasing
** Affects: horizon
Importance: Undecided
Status: New
** Description changed:
- horizon version 13.0.0-1.el7 (Queens)
+ horizon version 13.0.0-1.el7 (Queens) on centos 7.4.1708
After some time working on the dashboard, it stops working and throw
this error in the error log
[Wed Jul 04 22:49:33.744241 2018] [:error] [pid 23924] [remote
10.144.187.237:52] IOError: [Errno 24] Too many open files: '/usr/share
/openstack-dashboard/openstack_dashboard/templates/500.html'
if we check the open files of this process 23924
- ls -l /proc/23924/fd | wc -l
+ ls -l /proc/23924/fd | wc -l
1023
even if we increase the nofile limit of this process, it doesn't help as the
open files is always increasing
the problem is cleared if we restart the httpd process, but then the open
files will increase again
how to reproduce
1- login to the dashboard
2- get the pid from the error_log file
[Wed Jul 04 22:50:58.620832 2018] [:error] [pid 23924] INFO
openstack_auth.forms Login successful for user "demo" using domain "default"
3- browse the dashboard different menus, specially the network topology tab
4- monitor the open files no. with ls -l /proc/<pid>/fd | wc -l
observation
the no. is always increasing
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Engineering Team, which is subscribed to OpenStack Dashboard (Horizon).
https://bugs.launchpad.net/bugs/1780164
Title:
httpd leaks open files
Status in OpenStack Dashboard (Horizon):
New
Bug description:
horizon version 13.0.0-1.el7 (Queens) on centos 7.4.1708
After some time working on the dashboard, it stops working and throw
this error in the error log
[Wed Jul 04 22:49:33.744241 2018] [:error] [pid 23924] [remote
10.144.187.237:52] IOError: [Errno 24] Too many open files:
'/usr/share/openstack-
dashboard/openstack_dashboard/templates/500.html'
if we check the open files of this process 23924
ls -l /proc/23924/fd | wc -l
1023
even if we increase the nofile limit of this process, it doesn't help as the
open files is always increasing
the problem is cleared if we restart the httpd process, but then the open
files will increase again
how to reproduce
1- login to the dashboard
2- get the pid from the error_log file
[Wed Jul 04 22:50:58.620832 2018] [:error] [pid 23924] INFO
openstack_auth.forms Login successful for user "demo" using domain "default"
3- browse the dashboard different menus, specially the network topology tab
4- monitor the open files no. with ls -l /proc/<pid>/fd | wc -l
observation
the no. is always increasing
To manage notifications about this bug go to:
https://bugs.launchpad.net/horizon/+bug/1780164/+subscriptions
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