Jira (FACT-1853) facter networking is very slow on OpenStack compute node

[Chris Card (JIRA)]

Chris Card created an issue

Facter / FACT-1853 facter networking is very slow on OpenStack compute node Issue Type: Bug Affects Versions: FACT 3.9.3 Assignee: Unassigned Created: 2018/05/18 4:57 AM Priority: Normal Reporter: Chris Card When run on an OpenStack compute node with more than 1100 interfaces, the command "facter networking" is very slow. Running with the -d option shows that a subprocess is run for each interface, running /sbin/ip link show <interface>. This makes puppet runs very slow. We are running on CentOS 7, with puppet-agent-5.3.3-1.el7.x86_64, facter 3.9.3 Add Comment

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[Chris Card (JIRA)]

Chris Card updated an issue

Facter / FACT-1853 facter networking is very slow on OpenStack compute node

Change By: Chris Card

When run on an OpenStack compute node with more than 1100 interfaces, the command "facter networking" is very slow.

For example, it takes 140 seconds with about 1170 interfaces.

Running with the -d option shows that a subprocess is run for each interface, running /sbin/ip link show <interface>. This makes puppet runs very slow. We are running on CentOS 7, with puppet-agent-5.3.3-1.el7.x86_64, facter 3.9.3

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[Branan Riley (JIRA)]

Branan Riley updated an issue

Facter / FACT-1853 facter networking is very slow on OpenStack compute node

Change By: Branan Riley Labels: networking openstack

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[Branan Riley (JIRA)]

Branan Riley updated an issue

Facter / FACT-1853 facter networking is very slow on OpenStack compute node

Change By: Branan Riley Labels: networking openstack performance

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[Branan Riley (JIRA)]

Branan Riley updated an issue

Facter / FACT-1853 facter networking is very slow on OpenStack compute node

Change By: Branan Riley Team: Platform OS

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[Mateusz Gozdek (JIRA)]

Mateusz Gozdek commented on FACT-1853

Re: facter networking is very slow on OpenStack compute node I also have problem with this unfortunately, but even for smaller amount of interfaces. Facter version: 3.11.4 (commit dc7babfd0ad4523a72d3366cd4f4322add9c3b4b) OS: Arch Linux I have bunch of docker virtual interfaces and with total of 14, it takes 10 seconds to resolve networking fact. It takes 8 seconds to run `/usr/bin/dhcpcd -U` and then `/usr/bin/ip link show` for all interfaces.

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[Ciprian Badescu (JIRA)]

Ciprian Badescu updated an issue

Facter / FACT-1853

facter networking is very slow on OpenStack compute node

Change By: Ciprian Badescu Team: Platform OS Night's Watch

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[Gabriel Nagy (JIRA)]

Gabriel Nagy commented on FACT-1853

Re: facter networking is very slow on OpenStack compute node Hi Chris Card, Mateusz Gozdek, We believe this is linked to LTH-162 and how open file descriptors are handled on Linux (GitHub PR). This should be fixed now, and puppet-agent builds with the fix should be available on the nightlies page over the next few days: http://nightlies.puppet.com/

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