Bug #16749
closed
Foreman performs extremely slowly when a puppet agent with a high number of IP addresses configured reports in
Description
I have a foreman installation with about 900 puppet agents connecting to it. A few of them have a high number of local IP adresses (in the range of 300-500)
When one of these agents reports in, processing time for that request is very slow (about 12 seconds, as compared to about 0.4 seconds for a typical agent with 1 or 2 IP addresses), the CPU usage for the foreman server process goes very high (at or around 100%) and the memory usage of the foreman process increases a lot.
This happens with several agents and the common factor seems to be the high number of local IP addresses.
Relevant production.log lines:
2016-09-30 07:33:45 [app] [I] Started POST "/api/hosts/facts" for 217.76.129.21 at 2016-09-30 07:33:45 +0200
2016-09-30 07:33:45 [app] [I] Processing by Api::V2::HostsController#facts as JSON
2016-09-30 07:33:45 [app] [I] Parameters: {"name"=>"dnsp12.servidoresdns.net", "facts"=>"[FILTERED]", "certname"=>"dnsp12.servidoresdns.net", "apiv"=>"v2", :host=>{"name"=>"dnsp12.servidoresdns.net", "certname"=>"dnsp12.servidoresdns.net"}}
2016-09-30 07:34:09 [app] [I] Completed 201 Created in 24556ms (Views: 10.0ms | ActiveRecord: 7663.3ms)
2016-09-30 07:34:09 [app] [I] Started GET "/node/dnsp12.servidoresdns.net?format=yml" for 217.76.129.21 at 2016-09-30 07:34:09 +0200
2016-09-30 07:34:09 [app] [I] Processing by HostsController#externalNodes as YML
2016-09-30 07:34:09 [app] [I] Parameters: {"name"=>"dnsp12.servidoresdns.net"}
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