我正在尝试使用 postgresql 在我全新的 Rails 项目上执行 rake 命令，但出现此错误:
rake aborted! could not connect to server: Connection refused Is the server running on host "localhost" (127.0.0.1) and accepting TCP/IP connections on port 5432?
Tasks: TOP => db:migrate (See full trace by running task with --trace)
real 0m3.245s user 0m1.668s sys 0m0.382s
这是我的第一个 Rails 应用程序，当我运行 rails server 时，这是输出:
=> Booting WEBrick
=> Rails 3.2.3 application starting in development on
http://0.0.0.0:3000=> Call with -d to detach
=> Ctrl-C to shutdown server [2012-06-19 01:17:30] INFO WEBrick 1.3.1 [2012-06-19 01:17:30] INFO ruby 1.9.3 (2012-04-20)
[x86_64-darwin11.3.0] [2012-06-19 01:17:30] INFO
WEBrick::HTTPServer#start: pid=4668 port=3000
Rails -v: Rails 3.2.3
gem 环境:
RubyGems Environment: - RUBYGEMS VERSION: 1.8.24 - RUBY VERSION: 1.9.3 (2012-04-20 patchlevel 194) [x86_64-darwin11.3.0] - INSTALLATION DIRECTORY: /Users/kinhow/.rvm/gems/ruby-1.9.3-p194 - RUBY EXECUTABLE: /Users/kinhow/.rvm/rubies/ruby-1.9.3-p194/bin/ruby - EXECUTABLE DIRECTORY: /Users/kinhow/.rvm/gems/ruby-1.9.3-p194/bin - RUBYGEMS PLATFORMS: - ruby - x86_64-darwin-11 - GEM PATHS: - /Users/kinhow/.rvm/gems/ruby-1.9.3-p194 - /Users/kinhow/.rvm/gems/ruby-1.9.3-p194@global - GEM CONFIGURATION: - :update_sources => true - :verbose => true - :benchmark => false - :backtrace => false - :bulk_threshold => 1000 - REMOTE SOURCES: - http://rubygems.org/
如果有帮助:
运行 psql
psql: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/tmp/.s.PGSQL.5432"?
最佳答案
首先，您需要确保 postgresql 正在运行。打开控制台并执行“ps auxw | grep post”并确保服务器正在运行。您应该至少有四个进程在运行，包括“postgres: writer process”。如果你不这样做，那么你还没有开始。即使您已启动它，您也必须将其配置为监听适当的端口(127.0.0.1 和“localhost”)。您是否编辑了 postgres.conf 文件和 pg_hba.conf 文件？如果你这样做了，你有没有重新启动服务器？您使用的是最新的 pg gem 吗？你如何启动你的服务器？
~查尔斯~
关于ruby-on-rails - Rake 中止，无法连接到 postgresql : connection refused，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11094321/