Rails 连接到 Heroku 上的 Redis 时出现 5 个错误
Rails 5 error connecting to Redis on Heroku
Heroku returns 连接到 Redis 时出错。我将 Action Cable 用于消息传递站点，它在本地开发中工作 FINE。
我正在使用 RedisToGo
我将此添加到我的 production.rb:
config.middleware.use ChatActionCable
config.web_socket_server_url = "wss://my-app-name-here.herokuapp.com/cable"
config.action_cable.allowed_request_origins = ['https://my-app-name-here.herokuapp.com', 'http://my-app-name-here.herokuapp.com']
ChatActionCable 指的是我的中间件 chat_action_cable.rb，这是我在遵循 this 指南时添加的。这是代码：
class ChatActionCable < ActionCable::Connection::WebSocket
def initialize(app, options={})
@app = app
end
def call(env)
if ::WebSocket::Driver.websocket?(env)
ActionCable.server.call(env)
else
@app.call(env)
end
end
end
我的initializers/redis.rb:
uri = URI.parse(ENV["REDISTOGO_URL"] || "redis://localhost:6379/" )
REDIS = Redis.new(:url => uri)
我的cable.yml:
development:
adapter: async
test:
adapter: async
production: &production
:adapter: redis
:url: redis://redistogo:<my-password-is-here>@barreleye.redistogo.com:11263/
:host: barreleye.redistogo.com
:port: 11263
:password: <my-password>
:inline: true
:timeout: 1
这是来自 Heroku 的完整日志：
2017-05-14T04:26:46.393702+00:00 heroku[web.1]: State changed from starting to up
2017-05-14T04:26:46.608962+00:00 app[web.1]: I, [2017-05-14T04:26:46.608852 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Started GET "/cable" for 73.96.114.190 at 2017-05-14 04:26:46 +0000
2017-05-14T04:26:46.647328+00:00 app[web.1]: I, [2017-05-14T04:26:46.647233 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Started GET "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:46 +0000
2017-05-14T04:26:46.647431+00:00 app[web.1]: I, [2017-05-14T04:26:46.647368 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
2017-05-14T04:26:47.151764+00:00 heroku[router]: at=info method=GET path="/cable" host=teamgo.herokuapp.com request_id=4d655163-18cd-49dd-8847-2bd483872664 fwd="73.96.114.190" dyno=web.1 connect=0ms service=541ms status=101 bytes=194 protocol=https
2017-05-14T04:26:47.147989+00:00 app[web.1]: I, [2017-05-14T04:26:47.147897 #4] INFO -- : Finished "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:47 +0000
2017-05-14T04:26:48.744259+00:00 app[web.1]: I, [2017-05-14T04:26:48.744149 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Started GET "/cable" for 73.96.114.190 at 2017-05-14 04:26:48 +0000
2017-05-14T04:26:48.745125+00:00 app[web.1]: I, [2017-05-14T04:26:48.745015 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Started GET "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:48 +0000
2017-05-14T04:26:48.745237+00:00 app[web.1]: I, [2017-05-14T04:26:48.745168 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
2017-05-14T04:26:48.851585+00:00 app[web.1]: Exiting
2017-05-14T04:26:48.852553+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:345:in `rescue in establish_connection': Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED) (Redis::CannotConnectError)
2017-05-14T04:26:48.852558+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:331:in `establish_connection'
2017-05-14T04:26:48.852561+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:101:in `block in connect'
2017-05-14T04:26:48.852562+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect'
2017-05-14T04:26:48.852584+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:100:in `connect'
2017-05-14T04:26:48.852585+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:276:in `with_socket_timeout'
2017-05-14T04:26:48.852586+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:133:in `call_loop'
2017-05-14T04:26:48.852588+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/subscribe.rb:43:in `subscription'
2017-05-14T04:26:48.852589+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/subscribe.rb:12:in `subscribe'
2017-05-14T04:26:48.852591+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2765:in `_subscription'
2017-05-14T04:26:48.852593+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2143:in `block in subscribe'
2017-05-14T04:26:48.852595+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize'
2017-05-14T04:26:48.852608+00:00 app[web.1]: from /app/vendor/ruby-2.3.4/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
2017-05-14T04:26:48.852609+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize'
2017-05-14T04:26:48.852611+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2142:in `subscribe'
2017-05-14T04:26:48.852618+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:75:in `block in listen'
2017-05-14T04:26:48.852620+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect'
2017-05-14T04:26:48.852626+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:64:in `block in with_reconnect'
2017-05-14T04:26:48.852628+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize'
2017-05-14T04:26:48.852634+00:00 app[web.1]: from /app/vendor/ruby-2.3.4/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
2017-05-14T04:26:48.852650+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize'
2017-05-14T04:26:48.852652+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:63:in `with_reconnect'
2017-05-14T04:26:48.852654+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:70:in `without_reconnect'
2017-05-14T04:26:48.852665+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:72:in `listen'
2017-05-14T04:26:48.852695+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:146:in `block in ensure_listener_running'
2017-05-14T04:26:48.928202+00:00 heroku[web.1]: Process exited with status 1
2017-05-14T04:26:48.859559+00:00 heroku[router]: at=info method=GET path="/cable" host=teamgo.herokuapp.com request_id=cbddfc23-c1ec-4f35-ad62-6afbb846a1d3 fwd="73.96.114.190" dyno=web.1 connect=1ms service=113ms status=101 bytes=174 protocol=https
2017-05-14T04:26:48.940649+00:00 heroku[web.1]: State changed from up to crashed
2017-05-14T04:26:56.135087+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/cable" host=teamgo.herokuapp.com request_id=e7bbe5e8-ed74-47ba-9da0-d58d08bd0a7e fwd="73.96.114.190" dyno= connect= service= status=503 bytes= protocol=https
bundle exec rake middleware returns 这个：
use Rack::Sendfile
use ActionDispatch::Static
use ActionDispatch::Executor
use ActiveSupport::Cache::Strategy::LocalCache::Middleware
use Rack::Runtime
use Rack::MethodOverride
use ActionDispatch::RequestId
use Sprockets::Rails::QuietAssets
use Rails::Rack::Logger
use ActionDispatch::ShowExceptions
use WebConsole::Middleware
use ActionDispatch::DebugExceptions
use ActionDispatch::RemoteIp
use ActionDispatch::Reloader
use ActionDispatch::Callbacks
use ActiveRecord::Migration::CheckPending
use ActionDispatch::Cookies
use ActionDispatch::Session::CookieStore
use ActionDispatch::Flash
use Rack::Head
use Rack::ConditionalGet
use Rack::ETag
use Warden::Manager
run BudgetTracker::Application.routes
在我看来，您可能无法通过您的 Redis 实例进行身份验证，或者由于某种原因无法访问它。您是否尝试过登录 Rails 控制台并手动调试？
我还会通过 bundle exec rake middleware 查看您的中间件堆栈，因为您可能需要执行 config.middleware.insert_before 而不是 config.middleware.use.
解决方案：此问题是 Rails 5.0.1+ 中已确认的错误，如 rails issue #28362
中所示
在这个问题的 puma 方面工作的人 (puma issue #1189) 似乎已经将修复与更新的主控和 Rails 5.0.3 版本合并。
更新： 我可以确认，在新项目 运行 Rails v5.0.3 中重新创建我的项目后，该错误实际上已经已在 5.0.3 中修复。该应用程序成功地在 Heroku 上实现了 Action Cable 和 Web Socket 功能。我希望人们找到这个 post 并在遇到类似问题时看到这个答案。
Heroku returns 连接到 Redis 时出错。我将 Action Cable 用于消息传递站点，它在本地开发中工作 FINE。
我正在使用 RedisToGo
我将此添加到我的 production.rb:
config.middleware.use ChatActionCable
config.web_socket_server_url = "wss://my-app-name-here.herokuapp.com/cable"
config.action_cable.allowed_request_origins = ['https://my-app-name-here.herokuapp.com', 'http://my-app-name-here.herokuapp.com']
ChatActionCable 指的是我的中间件 chat_action_cable.rb，这是我在遵循 this 指南时添加的。这是代码：
class ChatActionCable < ActionCable::Connection::WebSocket
def initialize(app, options={})
@app = app
end
def call(env)
if ::WebSocket::Driver.websocket?(env)
ActionCable.server.call(env)
else
@app.call(env)
end
end
end
我的initializers/redis.rb:
uri = URI.parse(ENV["REDISTOGO_URL"] || "redis://localhost:6379/" )
REDIS = Redis.new(:url => uri)
我的cable.yml:
development:
adapter: async
test:
adapter: async
production: &production
:adapter: redis
:url: redis://redistogo:<my-password-is-here>@barreleye.redistogo.com:11263/
:host: barreleye.redistogo.com
:port: 11263
:password: <my-password>
:inline: true
:timeout: 1
这是来自 Heroku 的完整日志：
2017-05-14T04:26:46.393702+00:00 heroku[web.1]: State changed from starting to up
2017-05-14T04:26:46.608962+00:00 app[web.1]: I, [2017-05-14T04:26:46.608852 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Started GET "/cable" for 73.96.114.190 at 2017-05-14 04:26:46 +0000
2017-05-14T04:26:46.647328+00:00 app[web.1]: I, [2017-05-14T04:26:46.647233 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Started GET "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:46 +0000
2017-05-14T04:26:46.647431+00:00 app[web.1]: I, [2017-05-14T04:26:46.647368 #4] INFO -- : [4d655163-18cd-49dd-8847-2bd483872664] Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
2017-05-14T04:26:47.151764+00:00 heroku[router]: at=info method=GET path="/cable" host=teamgo.herokuapp.com request_id=4d655163-18cd-49dd-8847-2bd483872664 fwd="73.96.114.190" dyno=web.1 connect=0ms service=541ms status=101 bytes=194 protocol=https
2017-05-14T04:26:47.147989+00:00 app[web.1]: I, [2017-05-14T04:26:47.147897 #4] INFO -- : Finished "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:47 +0000
2017-05-14T04:26:48.744259+00:00 app[web.1]: I, [2017-05-14T04:26:48.744149 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Started GET "/cable" for 73.96.114.190 at 2017-05-14 04:26:48 +0000
2017-05-14T04:26:48.745125+00:00 app[web.1]: I, [2017-05-14T04:26:48.745015 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Started GET "/cable/" [WebSocket] for 73.96.114.190 at 2017-05-14 04:26:48 +0000
2017-05-14T04:26:48.745237+00:00 app[web.1]: I, [2017-05-14T04:26:48.745168 #4] INFO -- : [cbddfc23-c1ec-4f35-ad62-6afbb846a1d3] Successfully upgraded to WebSocket (REQUEST_METHOD: GET, HTTP_CONNECTION: Upgrade, HTTP_UPGRADE: websocket)
2017-05-14T04:26:48.851585+00:00 app[web.1]: Exiting
2017-05-14T04:26:48.852553+00:00 app[web.1]: /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:345:in `rescue in establish_connection': Error connecting to Redis on localhost:6379 (Errno::ECONNREFUSED) (Redis::CannotConnectError)
2017-05-14T04:26:48.852558+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:331:in `establish_connection'
2017-05-14T04:26:48.852561+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:101:in `block in connect'
2017-05-14T04:26:48.852562+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect'
2017-05-14T04:26:48.852584+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:100:in `connect'
2017-05-14T04:26:48.852585+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:276:in `with_socket_timeout'
2017-05-14T04:26:48.852586+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:133:in `call_loop'
2017-05-14T04:26:48.852588+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/subscribe.rb:43:in `subscription'
2017-05-14T04:26:48.852589+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/subscribe.rb:12:in `subscribe'
2017-05-14T04:26:48.852591+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2765:in `_subscription'
2017-05-14T04:26:48.852593+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2143:in `block in subscribe'
2017-05-14T04:26:48.852595+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize'
2017-05-14T04:26:48.852608+00:00 app[web.1]: from /app/vendor/ruby-2.3.4/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
2017-05-14T04:26:48.852609+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize'
2017-05-14T04:26:48.852611+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:2142:in `subscribe'
2017-05-14T04:26:48.852618+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:75:in `block in listen'
2017-05-14T04:26:48.852620+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis/client.rb:293:in `with_reconnect'
2017-05-14T04:26:48.852626+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:64:in `block in with_reconnect'
2017-05-14T04:26:48.852628+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `block in synchronize'
2017-05-14T04:26:48.852634+00:00 app[web.1]: from /app/vendor/ruby-2.3.4/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
2017-05-14T04:26:48.852650+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:58:in `synchronize'
2017-05-14T04:26:48.852652+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:63:in `with_reconnect'
2017-05-14T04:26:48.852654+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/redis-3.3.3/lib/redis.rb:70:in `without_reconnect'
2017-05-14T04:26:48.852665+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:72:in `listen'
2017-05-14T04:26:48.852695+00:00 app[web.1]: from /app/vendor/bundle/ruby/2.3.0/gems/actioncable-5.0.1/lib/action_cable/subscription_adapter/redis.rb:146:in `block in ensure_listener_running'
2017-05-14T04:26:48.928202+00:00 heroku[web.1]: Process exited with status 1
2017-05-14T04:26:48.859559+00:00 heroku[router]: at=info method=GET path="/cable" host=teamgo.herokuapp.com request_id=cbddfc23-c1ec-4f35-ad62-6afbb846a1d3 fwd="73.96.114.190" dyno=web.1 connect=1ms service=113ms status=101 bytes=174 protocol=https
2017-05-14T04:26:48.940649+00:00 heroku[web.1]: State changed from up to crashed
2017-05-14T04:26:56.135087+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/cable" host=teamgo.herokuapp.com request_id=e7bbe5e8-ed74-47ba-9da0-d58d08bd0a7e fwd="73.96.114.190" dyno= connect= service= status=503 bytes= protocol=https
bundle exec rake middleware returns 这个：
use Rack::Sendfile
use ActionDispatch::Static
use ActionDispatch::Executor
use ActiveSupport::Cache::Strategy::LocalCache::Middleware
use Rack::Runtime
use Rack::MethodOverride
use ActionDispatch::RequestId
use Sprockets::Rails::QuietAssets
use Rails::Rack::Logger
use ActionDispatch::ShowExceptions
use WebConsole::Middleware
use ActionDispatch::DebugExceptions
use ActionDispatch::RemoteIp
use ActionDispatch::Reloader
use ActionDispatch::Callbacks
use ActiveRecord::Migration::CheckPending
use ActionDispatch::Cookies
use ActionDispatch::Session::CookieStore
use ActionDispatch::Flash
use Rack::Head
use Rack::ConditionalGet
use Rack::ETag
use Warden::Manager
run BudgetTracker::Application.routes
在我看来，您可能无法通过您的 Redis 实例进行身份验证，或者由于某种原因无法访问它。您是否尝试过登录 Rails 控制台并手动调试？
我还会通过 bundle exec rake middleware 查看您的中间件堆栈，因为您可能需要执行 config.middleware.insert_before 而不是 config.middleware.use.
解决方案：此问题是 Rails 5.0.1+ 中已确认的错误，如 rails issue #28362
中所示在这个问题的 puma 方面工作的人 (puma issue #1189) 似乎已经将修复与更新的主控和 Rails 5.0.3 版本合并。
更新： 我可以确认，在新项目 运行 Rails v5.0.3 中重新创建我的项目后，该错误实际上已经已在 5.0.3 中修复。该应用程序成功地在 Heroku 上实现了 Action Cable 和 Web Socket 功能。我希望人们找到这个 post 并在遇到类似问题时看到这个答案。