我正在使用Rails 3.2.x和Thin 1.5.0,并且在最初加载我的应用程序时,在没有加载它24小时之后,它需要很长时间。起初,我认为这只是我的MacBook,因为它处于睡眠模式,并且第一次只是因为任何原因永远持续。为什么我的网站首次载入时间很长?
但是,我意识到它在Heroku上也一样,而且对其他人也是这样。就像他们没有访问Heroku网站一段时间,他们第一次加载它(而不是每次单独的时间,但有些时候),它需要永远。
根据日志,似乎我的样式表的编译花费了很长时间。但是我感到困惑的是,当我推到Heroku时,它应该在推送过程中编译资源......对吧?所以,从理论上讲,这不应该是放慢生产速度的原因。或者我错过了什么?
虽然,近来,Heroku的已拒绝推动,所以我不得不启用此:
# Don't initialize app on pre-compile
config.assets.initialize_on_precompile = false
所以我不知道这是什么促成它。
Started GET "/" for 127.0.0.1 at 2013-02-19 02:44:14 -0500
Processing by HomeController#index as HTML
Category Load (56.6ms) SELECT "categories".* FROM "categories" LIMIT 6
EXPLAIN (14.6ms) EXPLAIN QUERY PLAN SELECT "categories".* FROM "categories" LIMIT 6
EXPLAIN for: SELECT "categories".* FROM "categories" LIMIT 6
0|0|0|SCAN TABLE categories (~1000000 rows)
Banner Load (44.4ms) SELECT "banners".* FROM "banners" INNER JOIN "banner_types" ON "banner_types"."id" = "banners"."banner_type_id" WHERE (banner_types.name = 'Featured')
Banner Load (0.3ms) SELECT "banners".* FROM "banners" INNER JOIN "banner_types" ON "banner_types"."id" = "banners"."banner_type_id" WHERE (banner_types.name = 'Side')
Product Load (3.4ms) SELECT "products".* FROM "products"
Vendor Load (15.9ms) SELECT "vendors".* FROM "vendors"
User Load (50.0ms) SELECT "users".* FROM "users"
EXPLAIN (0.1ms) EXPLAIN QUERY PLAN SELECT "users".* FROM "users"
EXPLAIN for: SELECT "users".* FROM "users"
0|0|0|SCAN TABLE users (~1000000 rows)
Vendor Load (0.3ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 12 LIMIT 1
Vendor Load (0.2ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 11 LIMIT 1
Vendor Load (0.2ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 10 LIMIT 1
CACHE (0.0ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 12 LIMIT 1
CACHE (0.0ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 12 LIMIT 1
CACHE (0.0ms) SELECT "vendors".* FROM "vendors" WHERE "vendors"."id" = 10 LIMIT 1
Rendered home/_popular_products.html.erb (303.0ms)
Rendered home/_popular_stores.html.erb (2.4ms)
Rendered home/index.html.erb within layouts/application (570.6ms)
Compiled main.css (20360ms) (pid 86898)
Compiled application.css (2366ms) (pid 86898)
Rendered layouts/_login_nav.html.erb (1.0ms)
Rendered layouts/_navigation.html.erb (1.7ms)
Rendered layouts/_header.html.erb (47.3ms)
Rendered layouts/_messages.html.erb (0.2ms)
Rendered layouts/_footer.html.erb (0.5ms)
Completed 200 OK in 38402ms (Views: 30707.1ms | ActiveRecord: 1830.8ms)
想法?
编辑1:
请注意,这个问题还没有得到充分的回答。这些回答都谈论Heroku上的问题 - 这是问题的一部分。但是,他们无法解决发展中出现的这个问题。
这些日志是为我的开发环境 - 而不是Heroku。我对资产编译所做的唯一更改是在我的'config/application.rb'中,我设置了'config.assets.initialize_on_precompile = false',正如我在问题中所述。 – marcamillion 2013-02-19 08:07:48
另外.....这是有道理的....但它并不能完全解释为什么本地的第一个请求也需要永远。即在开发中,为什么当我将我的机器从睡眠中唤醒时,第一个请求需要很长时间?我是否应该使用精简运行退出终端会话,并在唤醒我的MacBook睡眠时重新启动服务器,或者有其他事情发生? – marcamillion 2013-02-19 08:12:18
一旦我安装了New Relic,我是否必须专门配置它以告诉它每小时都能ping我的应用程序?或者一旦我安装它,它会自动地做到这一点? – marcamillion 2013-02-19 08:28:38