Problem:

Foreman API call after upgrade now takes over 8 seconds which previously was under 1 second, I’m not sure if it’s isolated to the fact_values endpoint, yet.

@tbrisker asked me to link a ref to another ticket which he thinks is the cause of this issue: https://projects.theforeman.org/issues/21871

Expected outcome:

Previous releases (1.16.*) returned the results in under 1 second

Foreman and Proxy versions:

Debian Stretch with:
ii foreman 1.18.1-1 amd64 Systems management web interface
ii foreman-cli 1.18.1-1 all metapackage providing hammer CLI for Foreman
ii foreman-debug 1.18.1-1 all provides support utility foreman-debug.
ii foreman-libvirt 1.18.1-1 all metapackage providing libvirt dependencies for Foreman
ii foreman-postgresql 1.18.1-1 all metapackage providing PostgreSQL dependencies for Foreman
ii foreman-proxy 1.18.1-1 all RESTful proxies for DNS, DHCP, TFTP, and Puppet
ii ruby-foreman-deface 1.2.0-1 all Foreman Deface Plugin Dependency
ii ruby-foreman-dhcp-browser 0.0.8-1 all Foreman DHCP browser Plugin
ii ruby-foreman-discovery 12.0.2-1 all Foreman Discovery Plugin
ii ruby-foreman-hooks 0.3.14-1 all Foreman Hooks Plugin
ii ruby-foreman-templates 6.0.3-1 all Foreman Templates Plugin
ii ruby-hammer-cli-foreman 0.13.0-1 all Foreman commands for Hammer


Other relevant data:

Example curl command:

time curl -k -u admin:admin -H “Accept: version=2, application/json” -H “Content-Type: application/json” -X GET “https://theforeman.example.net/api/fact_values?per_page=5&search=name=ipmi_macaddress”
{
“total”: 432656,
“subtotal”: 5,
“page”: 1,
“per_page”: 5,
“search”: “name=ipmi_macaddress”,
“sort”: {
“by”: null,
“order”: null
},
“results”: {“kr1000.example.net”:{“ipmi_macaddress”:“00:25:90:0b:24:dc”},“kr110e.example.net”:{“ipmi_macaddress”:“00:25:90:3f:4c:2c”},“kr1207.example.net”:{“ipmi_macaddress”:“00:25:90:4d:15:49”},“rb1404.example.net”:{“ipmi_macaddress”:“00:25:90:52:48:67”},“kr1204.example.net”:{“ipmi_macaddress”:“00:25:90:6d:f8:cf”}}
}

real	0m10.244s
user	0m0.028s
sys	0m0.000s

I had some issues getting SQL debug logging working - but when I did, I got this in the logs ( I snipped the list of IDs in the last query as it was many, many lines!):

2018-08-22T10:02:45 [I|app|ddca7] Processing by Api::V2::FactValuesController#index as JSON
2018-08-22T10:02:45 [I|app|ddca7] Parameters: {“per_page”=>“5”, “search”=>“name=ipmi_macaddress”, “apiv”=>“v2”, “fact_value”=>{}}
2018-08-22T10:02:45 [D|sql|ddca7] Setting Load (0.6ms) SELECT “settings”.* FROM “settings” WHERE “settings”.“name” = $1 ORDER BY “settings”.“name” ASC LIMIT $2 [[“name”, “authorize_login_delegation_api”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [D|sql|ddca7] User Load (0.3ms) SELECT “users”.* FROM “users” WHERE “users”.“lower_login” = $1 LIMIT $2 [[“lower_login”, “admin”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [D|sql|ddca7] PersonalAccessToken Load (0.5ms) SELECT “personal_access_tokens”.* FROM “personal_access_tokens” WHERE “personal_access_tokens”.“revoked” = $1 AND (expires_at >= ‘2018-08-22 10:02:45.931186’ OR expires_at IS NULL) AND “personal_access_tokens”.“user_id” = 3 AND “personal_access_tokens”.“token” = $2 LIMIT $3 [[“revoked”, “f”], [“token”, “7ea0bb43659d7fe52511a090115b3048b0fa14fe”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [D|sql|ddca7] AuthSource Load (0.5ms) SELECT “auth_sources”.* FROM “auth_sources” WHERE “auth_sources”.“id” = $1 LIMIT $2 [[“id”, 1], [“LIMIT”, 1]]
2018-08-22T10:02:45 [D|sql|ddca7] (0.2ms) SELECT “users”.“id” FROM “users”
2018-08-22T10:02:45 [D|sql|ddca7] CACHE (0.0ms) SELECT “users”.“id” FROM “users”
2018-08-22T10:02:45 [D|sql|ddca7] CACHE User Load (0.0ms) SELECT “users”.* FROM “users” WHERE “users”.“lower_login” = $1 LIMIT $2 [[“lower_login”, “admin”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [D|sql|ddca7] Authenticated user admin against INTERNAL authentication source
2018-08-22T10:02:45 [D|sql|ddca7] User Load (0.3ms) SELECT “users”.* FROM “users” WHERE “users”.“lower_login” = $1 LIMIT $2 [[“lower_login”, “foreman_admin”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [I|app|ddca7] Current user: foreman_admin (administrator)
2018-08-22T10:02:45 [D|sql|ddca7] (0.2ms) SELECT auth_sources.id FROM “auth_sources” WHERE “auth_sources”.“type” IN (‘AuthSourceHidden’)
2018-08-22T10:02:45 [D|sql|ddca7] User Load (0.3ms) SELECT “users”.* FROM “users” WHERE (“users”.“auth_source_id” NOT IN (2)) AND “users”.“lower_login” = $1 LIMIT $2 [[“lower_login”, “admin”], [“LIMIT”, 1]]
2018-08-22T10:02:45 [I|app|ddca7] Authorized user admin(Admin User)
2018-08-22T10:02:45 [I|app|ddca7] Current user: admin (administrator)
2018-08-22T10:02:45 [D|sql|ddca7] (0.1ms) BEGIN
2018-08-22T10:02:45 [D|sql|ddca7] SQL (0.2ms) DELETE FROM “sessions” WHERE “sessions”.“id” = $1 [[“id”, 21634422]]
2018-08-22T10:02:45 [D|sql|ddca7] (0.3ms) COMMIT
2018-08-22T10:02:45 [D|sql|ddca7] Setting Load (0.5ms) SELECT “settings”.* FROM “settings” WHERE “settings”.“name” = $1 ORDER BY “settings”.“name” ASC LIMIT $2 [[“name”, “idle_timeout”], [“LIMIT”, 1]]
2018-08-22T10:02:46 [D|sql|ddca7] SQL (3.6ms) SELECT “fact_values”.“id” AS t0_r0, “fact_values”.“value” AS t0_r1, “fact_values”.“fact_name_id” AS t0_r2, “fact_values”.“host_id” AS t0_r3, “fact_values”.“updated_at” AS t0_r4, “fact_values”.“created_at” AS t0_r5, “fact_names”.“id” AS t1_r0, “fact_names”.“name” AS t1_r1, “fact_names”.“updated_at” AS t1_r2, “fact_names”.“created_at” AS t1_r3, “fact_names”.“compose” AS t1_r4, “fact_names”.“short_name” AS t1_r5, “fact_names”.“type” AS t1_r6, “fact_names”.“ancestry” AS t1_r7 FROM “fact_values” INNER JOIN “fact_names” ON “fact_names”.“id” = “fact_values”.“fact_name_id” WHERE (fact_names.name <> ‘_timestamp’) AND ((“fact_names”.“name” = ‘ipmi_macaddress’)) ORDER BY “fact_values”.“value” ASC NULLS FIRST LIMIT $1 OFFSET $2 [[“LIMIT”, 5], [“OFFSET”, 0]]
2018-08-22T10:02:46 [D|sql|ddca7] Host::Base Load (0.5ms) SELECT “hosts”.* FROM “hosts” WHERE “hosts”.“id” IN (1218, 517, 612, 687, 586)
2018-08-22T10:02:46 [D|sql|ddca7] Host::Managed Load (0.4ms) SELECT “hosts”.* FROM “hosts” WHERE “hosts”.“type” IN (‘Host::Managed’) AND “hosts”.“id” IN (1218, 517, 612, 687, 586)
2018-08-22T10:02:46 [I|app|ddca7] Rendering api/v2/fact_values/index.json.rabl within api/v2/layouts/index_layout
2018-08-22T10:02:46 [I|app|ddca7] Rendered api/v2/fact_values/index.json.rabl within api/v2/layouts/index_layout (0.8ms)
2018-08-22T10:02:46 [D|sql|ddca7] (135.5ms) SELECT “fact_values”.“id” FROM “fact_values”
2018-08-22T10:02:46 [D|sql|ddca7] CACHE (0.0ms) SELECT “fact_values”.“id” FROM “fact_values”
2018-08-22T10:02:54 [D|sql|ddca7] (2122.9ms) SELECT COUNT(*) FROM “fact_values” WHERE “fact_values”.“id” IN (199210, 199211, 199212, 199213, 199214, 199215, 199216, 199217, 199218, 199219, 199220, 199221, 199222, 199223, 199224, 199225, 199226, 199227, 199228, 199229,.,.,.)
2018-08-22T10:02:54 [I|app|ddca7] Completed 200 OK in 8837ms (Views: 6473.6ms | ActiveRecord: 2280.8ms)