希望一切都好。我有以下问题，希望您能帮助我:
我正在尝试使用 vagrant 和 ansible 部署我的 Rails 4 应用程序。该应用程序的一部分是一个 redis 服务器。我在 192.168.33.2:6379 上设置并运行，我的 Rails 应用程序在 192.168.33.4 上运行，并在 ubuntu + nginx 上运行。
尽管我已经使用 redis-rb(应用程序中的 gem)设置了 redis，并使用从 YAML 文件启动的应用程序全局变量在我的一个初始化程序中初始化了一个 redis 对象:
$redis = Redis.new(:driver => :hiredis, :host => APP_CONFIG[:redis_host], :port => APP_CONFIG[:redis_port])
APP_CONFIG[:redis_host] = 192.168.33.2, APP_CONFIG[:redis_port] = 6379
和 bind 0.0.0.0 在我的 redis.conf 文件中，我仍然收到错误 Error connecting to Redis on 127.0.0.1:6379 (Errno::ECONNREFUSED)当我在浏览器中访问 Rails 应用程序时。
运行 redis-cli -h 192.168.33.2 ping 当 vagrant ssh-ed 进入 192.168.33.4 返回 pong。因此可以建立连接，我可以连接到 redis 服务器/查看来自 192.168.33.4 的 key ...
同时在终端中运行 netstat -l 给我:tcp 00 *:6379 *:* LISTEN
有谁知道我该如何解决这个问题？
提前致谢!
更新
注意:我使用了 redis-rails gem并在我的应用程序中将其用于 session_store 和 cache_store。 (当不使用 redis 时它有效)。以这种方式配置:
#config/initializers/session_store.rb
MyApp::Application.config.session_store :redis_store, {
:host => APP_CONFIG[:redis_host],
:port => APP_CONFIG[:redis_port],
:db => APP_CONFIG[:redis_db],
# :password => "mysecret",
:namespace => "_myapp_session"}, :expires_in => 90.minutes
#config/application.rb
config.cache_store = :redis_store,"redis://192.168.33.2:6379/12/api_cache", { expires_in: 3.minutes }
有踪迹:
redis (3.2.1) lib/redis/client.rb:331:in `rescue in establish_connection'
redis (3.2.1) lib/redis/client.rb:317:in `establish_connection'
redis (3.2.1) lib/redis/client.rb:94:in `block in connect'
redis (3.2.1) lib/redis/client.rb:279:in `with_reconnect'
redis (3.2.1) lib/redis/client.rb:93:in `connect'
redis (3.2.1) lib/redis/client.rb:350:in `ensure_connected'
redis (3.2.1) lib/redis/client.rb:207:in `block in process'
redis (3.2.1) lib/redis/client.rb:292:in `logging'
redis (3.2.1) lib/redis/client.rb:206:in `process'
redis (3.2.1) lib/redis/client.rb:112:in `call'
redis (3.2.1) lib/redis.rb:681:in `block in set'
redis (3.2.1) lib/redis.rb:37:in `block in synchronize'
/home/vagrant/.rubies/ruby_2.1.0/lib/ruby/2.1.0/monitor.rb:211:in `mon_synchronize'
redis (3.2.1) lib/redis.rb:37:in `synchronize'
redis (3.2.1) lib/redis.rb:677:in `set'
redis-store (1.1.6) lib/redis/store/interface.rb:9:in `set'
redis-store (1.1.6) lib/redis/store/ttl.rb:8:in `set'
redis-store (1.1.6) lib/redis/store/marshalling.rb:5:in `block in set'
redis-store (1.1.6) lib/redis/store/marshalling.rb:29:in `_marshal'
redis-store (1.1.6) lib/redis/store/marshalling.rb:5:in `set'
redis-rack (1.5.0) lib/rack/session/redis.rb:31:in `block in get_session'
redis-rack (1.5.0) lib/rack/session/redis.rb:55:in `with_lock'
redis-rack (1.5.0) lib/rack/session/redis.rb:28:in `get_session'
rack (1.6.4) lib/rack/session/abstract/id.rb:266:in `load_session'
actionpack (4.2.0) lib/action_dispatch/middleware/session/abstract_store.rb:43:in `block in load_session'
actionpack (4.2.0) lib/action_dispatch/middleware/session/abstract_store.rb:51:in `stale_session_check!'
actionpack (4.2.0) lib/action_dispatch/middleware/session/abstract_store.rb:43:in `load_session'
rack (1.6.4) lib/rack/session/abstract/id.rb:151:in `load!'
rack (1.6.4) lib/rack/session/abstract/id.rb:147:in `load_for_write!'
rack (1.6.4) lib/rack/session/abstract/id.rb:73:in `[]='
actionpack (4.2.0) lib/action_controller/metal/request_forgery_protection.rb:314:in `real_csrf_token'
actionpack (4.2.0) lib/action_controller/metal/request_forgery_protection.rb:268:in `masked_authenticity_token'
actionpack (4.2.0) lib/action_controller/metal/request_forgery_protection.rb:260:in `form_authenticity_token'
actionpack (4.2.0) lib/abstract_controller/helpers.rb:67:in `form_authenticity_token'
actionview (4.2.0) lib/action_view/helpers/url_helper.rb:608:in `token_tag'
actionview (4.2.0) lib/action_view/helpers/form_tag_helper.rb:847:in `extra_tags_for_form'
actionview (4.2.0) lib/action_view/helpers/form_tag_helper.rb:861:in `form_tag_html'
actionview (4.2.0) lib/action_view/helpers/form_tag_helper.rb:866:in `form_tag_with_body'
actionview (4.2.0) lib/action_view/helpers/form_helper.rb:448:in `form_for'
components/frontend/app/views/frontend/pages/home.html.erb:22:in `_components_frontend_app_views_frontend_pages_home_html_erb___3446196759514705024_70018609103500'
actionview (4.2.0) lib/action_view/template.rb:145:in `block in render'
activesupport (4.2.0) lib/active_support/notifications.rb:166:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:333:in `instrument'
actionview (4.2.0) lib/action_view/template.rb:143:in `render'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:54:in `block (2 levels) in render_template'
actionview (4.2.0) lib/action_view/renderer/abstract_renderer.rb:39:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
actionview (4.2.0) lib/action_view/renderer/abstract_renderer.rb:39:in `instrument'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:53:in `block in render_template'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.0) lib/action_view/renderer/template_renderer.rb:14:in `render'
actionview (4.2.0) lib/action_view/renderer/renderer.rb:42:in `render_template'
actionview (4.2.0) lib/action_view/renderer/renderer.rb:23:in `render'
actionview (4.2.0) lib/action_view/rendering.rb:100:in `_render_template'
actionpack (4.2.0) lib/action_controller/metal/streaming.rb:217:in `_render_template'
actionview (4.2.0) lib/action_view/rendering.rb:83:in `render_to_body'
actionpack (4.2.0) lib/action_controller/metal/rendering.rb:32:in `render_to_body'
actionpack (4.2.0) lib/action_controller/metal/renderers.rb:37:in `render_to_body'
actionpack (4.2.0) lib/abstract_controller/rendering.rb:25:in `render'
actionpack (4.2.0) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'
activesupport (4.2.0) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
/home/vagrant/.rubies/ruby_2.1.0/lib/ruby/2.1.0/benchmark.rb:294:in `realtime'
activesupport (4.2.0) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:41:in `block in render'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:40:in `render'
wicked_pdf (0.11.0) lib/wicked_pdf/pdf_helper.rb:23:in `render_with_wicked_pdf'
actionpack (4.2.0) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.2.0) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (4.2.0) lib/abstract_controller/base.rb:198:in `process_action'
actionpack (4.2.0) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.2.0) lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.0) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:234:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:169:in `block in halting'
activesupport (4.2.0) lib/active_support/callbacks.rb:92:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:92:in `_run_callbacks'
activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_process_action_callbacks'
activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.0) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.0) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.0) lib/active_support/notifications.rb:164:in `instrument'
actionpack (4.2.0) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.0) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
actionpack (4.2.0) lib/abstract_controller/base.rb:137:in `process'
actionview (4.2.0) lib/action_view/rendering.rb:30:in `process'
actionpack (4.2.0) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.2.0) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.0) lib/action_controller/metal.rb:236:in `block in action'
actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:73:in `call'
actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:42:in `serve'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:802:in `call'
railties (4.2.0) lib/rails/engine.rb:518:in `call'
railties (4.2.0) lib/rails/railtie.rb:194:in `public_send'
railties (4.2.0) lib/rails/railtie.rb:194:in `method_missing'
actionpack (4.2.0) lib/action_dispatch/routing/mapper.rb:51:in `serve'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:43:in `block in serve'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `each'
actionpack (4.2.0) lib/action_dispatch/journey/router.rb:30:in `serve'
actionpack (4.2.0) lib/action_dispatch/routing/route_set.rb:802:in `call'
omniauth (1.2.2) lib/omniauth/strategy.rb:186:in `call!'
omniauth (1.2.2) lib/omniauth/strategy.rb:164:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
rack (1.6.4) lib/rack/etag.rb:24:in `call'
rack (1.6.4) lib/rack/conditionalget.rb:25:in `call'
rack (1.6.4) lib/rack/head.rb:13:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/flash.rb:260:in `call'
rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/cookies.rb:560:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `call'
activesupport (4.2.0) lib/active_support/callbacks.rb:88:in `_run_callbacks'
activesupport (4.2.0) lib/active_support/callbacks.rb:734:in `_run_call_callbacks'
activesupport (4.2.0) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (4.2.0) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
better_errors (2.1.1) lib/better_errors/middleware.rb:59:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.0) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.2.0) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.0) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.2.0) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.2.0) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.6.4) lib/rack/methodoverride.rb:22:in `call'
rack (1.6.4) lib/rack/runtime.rb:18:in `call'
rack (1.6.4) lib/rack/lock.rb:17:in `call'
actionpack (4.2.0) lib/action_dispatch/middleware/static.rb:113:in `call'
rack (1.6.4) lib/rack/sendfile.rb:113:in `call'
railties (4.2.0) lib/rails/engine.rb:518:in `call'
railties (4.2.0) lib/rails/application.rb:164:in `call'
/usr/lib/ruby/vendor_ruby/phusion_passenger/rack/thread_handler_extension.rb:94:in `process_request'
/usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:149:in `accept_and_process_next_request'
/usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler/thread_handler.rb:110:in `main_loop'
/usr/lib/ruby/vendor_ruby/phusion_passenger/request_handler.rb:415:in `block (3 levels) in start_threads'
/usr/lib/ruby/vendor_ruby/phusion_passenger/utils.rb:111:in `block in create_thread_and_abort_on_exception'
最佳答案
所以我能够使用单行方法解决这个问题:
MyApp::Application.config.session_store :redis_store, servers: "redis://#{APP_CONFIG[:redis_host]}:#{APP_CONFIG[:redis_port]}/#{APP_CONFIG[:redis_db]}/myapp_session", key: '_myapp_session', :expires_in => 90.minutes
请注意我之前不小心遗漏的servers:。还要注意 key: '_myapp_session' 添加它很重要(并将它与 redis uri 中的缓存命名空间相匹配？)否则你会得到一个“可以”尝试连接您的 API 时出现“验证 CSRF token 真实性”错误。
关于ruby-on-rails - Vagrant+Ansible+Redis - 使用不同服务器时获取 127.0.0.1:6379 (Errno::ECONNREFUSED)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31597345/
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我想获取模块中定义的所有常量的值:moduleLettersA='apple'.freezeB='boy'.freezeendconstants给了我常量的名字:Letters.constants(false)#=>[:A,:B]如何获取它们的值的数组，即["apple","boy"]？ 最佳答案 为了做到这一点，请使用mapLetters.constants(false).map&Letters.method(:const_get)这将返回["a","b"]第二种方式:Letters.constants(false).map{|c
我安装了ruby版本管理器，并将RVM安装的ruby实现设置为默认值，这样'哪个ruby'显示'~/.rvm/ruby-1.8.6-p383/bin/ruby'但是当我在emacs中打开inf-ruby缓冲区时，它使用安装在/usr/bin中的ruby。有没有办法让emacs像shell一样尊重ruby的路径？谢谢! 最佳答案 我创建了一个emacs扩展来将rvm集成到emacs中。如果您有兴趣，可以在这里获取:http://github.com/senny/rvm.el
我想在Ruby中创建一个用于开发目的的极其简单的Web服务器(不，不想使用现成的解决方案)。代码如下:#!/usr/bin/rubyrequire'socket'server=TCPServer.new('127.0.0.1',8080)whileconnection=server.acceptheaders=[]length=0whileline=connection.getsheaders想法是从命令行运行这个脚本，提供另一个脚本，它将在其标准输入上获取请求，并在其标准输出上返回完整的响应。到目前为止一切顺利，但事实证明这真的很脆弱，因为它在第二个请求上中断并出现错误:/usr/b