Feature #20889: Make it possible to install Foreman's httpd with mpm_event - Installer - Foreman

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Feature #20889

closed

Make it possible to install Foreman's httpd with mpm_event

Added by Ewoud Kohl van Wijngaarden over 7 years ago. Updated about 3 years ago.

Status:

Closed

Priority:

Normal

Assignee:

William Clark

Category:

Target version:

Difficulty:

Triaged:

Bugzilla link:

1463489

Pull request:

https://github.com/theforeman/foreman-installer/pull/241, https://github.com/theforeman/foreman-installer/pull/753

Fixed in Releases:

Foreman - 3.3.0

Found in Releases:

Red Hat JIRA:

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.

Related issues 1 (0 open — 1 closed)

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Updated by The Foreman Bot over 7 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

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Updated by Ewoud Kohl van Wijngaarden over 7 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
Translation missing: en.field_release set to 296

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Updated by Ewoud Kohl van Wijngaarden almost 7 years ago

Status changed from Resolved to Closed
Target version deleted (~~1.17.0~~)
Triaged set to No

This was reverted in 0ed45f776fdbeb5d5dc814ffeab355da6aefce51

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Updated by Evgeni Golov over 3 years ago

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
Status changed from Closed to New
Assignee deleted (~~Ewoud Kohl van Wijngaarden~~)

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.

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Updated by The Foreman Bot about 3 years ago

Status changed from New to Ready For Testing
Assignee set to William Clark
Pull request https://github.com/theforeman/foreman-installer/pull/753 added