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https://issues.apache.org/jira/browse/TC-32?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15773283#comment-15773283
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ASF GitHub Bot commented on TC-32:
----------------------------------
Github user mitchell852 commented on a diff in the pull request:
https://github.com/apache/incubator-trafficcontrol/pull/141#discussion_r93785448
--- Diff: traffic_ops/app/lib/TrafficOpsRoutes.pm ---
@@ -471,6 +471,12 @@ sub api_routes {
$r->get("/api/$version/logs/:days/days")->over( authenticated => 1
)->to( 'ChangeLog#index', namespace => $namespace );
$r->get("/api/$version/logs/newcount")->over( authenticated => 1 )->to(
'ChangeLog#newlogcount', namespace => $namespace );
+ # -- CONFIG FILES
+ $r->get("/api/$version/server/:id/configfiles/ats")->over(
authenticated => 1 )->to ( 'ApacheTrafficServer#ort', namespace =>
'API::Configs' );
--- End diff --
you asked for it. ;)
> Improve efficiency of ATS config generation
> -------------------------------------------
>
> Key: TC-32
> URL: https://issues.apache.org/jira/browse/TC-32
> Project: Traffic Control
> Issue Type: Improvement
> Components: Traffic Ops API
> Reporter: Derek Gelinas
> Assignee: Derek Gelinas
> Fix For: 1.9.0
>
>
> Currently when generating ATS configuration files, each server calls for its
> individual files from traffic ops. This is a very database-intensive process
> that is not scalable enough. I propose the following changes:
> 1) Generate the configuration files only as many times as needed - many files
> are the same (or can be) for the entire CDN or server profile.
> 2) Once generated, the files can be cached locally. Requests for the files
> by ORT will result in pulling down these cached files rather than many
> hundreds of DB queries each time.
> 3) Migrate the routes for these files to the API. Each call will have
> multiple options - a request made with no options would return the cached
> file, another option would return the current DB data, and a third option
> would update the cached file with the current information in the DB.
> 4) When an update is queued, generate and cache the configuration files, then
> activate the update flag for the relevant servers once the cached file
> generation is completed.
> In this way, triggering updates for the caches will result in an initial
> increase in activity as traffic ops generates the files needed, followed by
> the much lower impact of the files themselves being requested by the caches.
> I believe we can cut down the number of server-specific configuration files
> to only 5 intially, and potentially fewer by having ORT fill in certain
> fields on files like records.config with local data during processing.
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