Feature #20889
Make it possible to install Foreman's httpd with mpm_event
Description
Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1463489
Description of problem:
We did some measurement for number of concurrent registrations with Satellite on default mpm_prefork vs. mpm_event and with mpm_event, we saw significant saving in RSS memory consumed by httpd processes.
Version-Release number of selected component (if applicable):
Satellite 6.2.9
How reproducible:
always
Steps to Reproduce:
1. measure RSS usage of all httpd processes together with default (currently
mpm_prefork) setting during concurrent registration of 140 hosts
2. measure RSS usage of all httpd processes together with mpm_event setting
configured during concurrent registration of 140 hosts
Actual results:
RSS memory usage in first case was about 2 GB, in second case 760 MB.
Additional info:
As discussed, it is important to carefully sanity-test Satellite in regards of functionality and performance.
Associated revisions
Fixes #20889 - Use event mpm module with Apache
History
#1
Updated by The Foreman Bot over 5 years ago
- Status changed from New to Ready For Testing
- Assignee set to Ewoud Kohl van Wijngaarden
- Pull request https://github.com/theforeman/foreman-installer/pull/241 added
#2
Updated by Ewoud Kohl van Wijngaarden over 5 years ago
- Subject changed from make it possible to install Satellite's httpd with mpm_event to make it possible to install Satellite's httpd with mpm_event
- Status changed from Ready For Testing to Resolved
- Legacy Backlogs Release (now unused) set to 296
#3
Updated by Ewoud Kohl van Wijngaarden over 4 years ago
- Triaged set to No
- Target version deleted (
1.17.0) - Status changed from Resolved to Closed
This was reverted in 0ed45f776fdbeb5d5dc814ffeab355da6aefce51
#4
Updated by Evgeni Golov over 1 year ago
- Assignee deleted (
Ewoud Kohl van Wijngaarden) - Status changed from Closed to New
- Subject changed from make it possible to install Satellite's httpd with mpm_event to make it possible to install Foreman's httpd with mpm_event
Re-opening this, as the change that closed this issue was reverted in https://github.com/theforeman/foreman-installer/commit/0ed45f776fdbeb5d5dc814ffeab355da6aefce51
All supported Debian and Ubuntu releases, and EL8 have a sufficiently new Apache httpd, so the only outliner now is EL7.
It was discussed to make it "event" by default, and only use "prefork" for EL7.
#5
Updated by The Foreman Bot about 1 year ago
- Assignee set to William Clark
- Status changed from New to Ready For Testing
- Pull request https://github.com/theforeman/foreman-installer/pull/753 added
#6
Updated by The Foreman Bot 11 months ago
- Fixed in Releases 3.3.0 added
#7
Updated by William Clark 11 months ago
- Status changed from Ready For Testing to Closed
Applied in changeset installer|640dfc6b4aefc85a9af12c736191302184e7a28a.
#8
Updated by Amit Upadhye 11 months ago
- Subject changed from make it possible to install Foreman's httpd with mpm_event to Make it possible to install Foreman's httpd with mpm_event
Fixes #20889 - Use the Apache MPM event worker