{"action":"created","issue":{"url":"https://api.github.com/repos/flynn/flynn/issues/3516","repository_url":"https://api.github.com/repos/flynn/flynn","labels_url":"https://api.github.com/repos/flynn/flynn/issues/3516/labels{/name}","comments_url":"https://api.github.com/repos/flynn/flynn/issues/3516/comments","events_url":"https://api.github.com/repos/flynn/flynn/issues/3516/events","html_url":"https://github.com/flynn/flynn/issues/3516","id":183232122,"number":3516,"title":"Unreasonable high queue time","user":{"login":"simon0191","id":1335661,"avatar_url":"https://avatars.githubusercontent.com/u/1335661?v=3","gravatar_id":"","url":"https://api.github.com/users/simon0191","html_url":"https://github.com/simon0191","followers_url":"https://api.github.com/users/simon0191/followers","following_url":"https://api.github.com/users/simon0191/following{/other_user}","gists_url":"https://api.github.com/users/simon0191/gists{/gist_id}","starred_url":"https://api.github.com/users/simon0191/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/simon0191/subscriptions","organizations_url":"https://api.github.com/users/simon0191/orgs","repos_url":"https://api.github.com/users/simon0191/repos","events_url":"https://api.github.com/users/simon0191/events{/privacy}","received_events_url":"https://api.github.com/users/simon0191/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":2,"created_at":"2016-10-15T20:47:57Z","updated_at":"2016-10-15T20:59:19Z","closed_at":null,"body":"After migrating our app from heroku to flynn our queue time metric has increased unreasonably, even though the app seems to be behaving normally. We thought it was a problem of new relic so we set up App signal to compare but we are getting very similar metrics: Queue time >50 secs and some times > 90secs.\r\n\r\n- New relic queue time metric with a lot of pikes >50secs:\r\n![screen shot 2016-10-15 at 3 40 17 pm](https://cloud.githubusercontent.com/assets/1335661/19413285/50d56e5c-92ee-11e6-8c6c-f1fcfd0618a7.png)\r\n\r\n- New relic queue time metric filtering out request queuing:\r\n![screen shot 2016-10-15 at 3 40 38 pm](https://cloud.githubusercontent.com/assets/1335661/19413281/492fb608-92ee-11e6-9aa8-a748eb99fb24.png)\r\n\r\n- Appsignal queue time metric with a lot of pikes >50secs:\r\n![screen shot 2016-10-15 at 3 40 07 pm](https://cloud.githubusercontent.com/assets/1335661/19413294/9c63d64c-92ee-11e6-8e5c-5bcfc999a746.png)\r\n\r\n\r\n\r\n"},"comment":{"url":"https://api.github.com/repos/flynn/flynn/issues/comments/254010750","html_url":"https://github.com/flynn/flynn/issues/3516#issuecomment-254010750","issue_url":"https://api.github.com/repos/flynn/flynn/issues/3516","id":254010750,"user":{"login":"titanous","id":13026,"avatar_url":"https://avatars.githubusercontent.com/u/13026?v=3","gravatar_id":"","url":"https://api.github.com/users/titanous","html_url":"https://github.com/titanous","followers_url":"https://api.github.com/users/titanous/followers","following_url":"https://api.github.com/users/titanous/following{/other_user}","gists_url":"https://api.github.com/users/titanous/gists{/gist_id}","starred_url":"https://api.github.com/users/titanous/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/titanous/subscriptions","organizations_url":"https://api.github.com/users/titanous/orgs","repos_url":"https://api.github.com/users/titanous/repos","events_url":"https://api.github.com/users/titanous/events{/privacy}","received_events_url":"https://api.github.com/users/titanous/received_events","type":"User","site_admin":false},"created_at":"2016-10-15T20:59:19Z","updated_at":"2016-10-15T20:59:19Z","body":"It's also worth noting two things:\r\n\r\n1. The \"request queuing time\" that New Relic shows is the time between the Flynn router receiving the request and the New Relic agent in your app seeing the request. This is done by setting the `X-Request-Start` header in the router to the timestamp that the request was received.\r\n2. New Relic uses the numeric mean for that chart, so it can be very skewed. A single offset of a few minutes will skew the chart depending on the throughput."}}
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