【问题标题】:Error trying to connect sql server with RoR app in Vagrant尝试在 Vagrant 中将 sql server 与 RoR 应用程序连接时出错
【发布时间】:2019-04-24 23:07:58
【问题描述】:

我正在尝试将 RoR 应用程序与 SQL Server 连接。我创建了一个database.yml 文件,如下所示:

development: 
   <<: *default 
   adapter: sqlserver
   host: 'pcname\domain' 
   encoding: 'unicode' 
   database: 'db_name' 
   username: 'user' 
   password: 'pass' 
   pool: 5 
   port: 1434

我已启用 TPC/IP 并在 SQL 配置管理器中将端口更改为 1434。

当我尝试使用 rake db:migrate 运行迁移时,控制台会抛出:

TinyTds::Error: 在配置文件中找不到服务器名称

我以前安装过 FreeTDS。我已经尝试使用dataserver: 'pcname\domain:1434'dataserver: 'pcname\domain' 没有端口

完整的跟踪

/home/vagrant/.rvm/gems/ruby-2.3.3/gems/tiny_tds-2.0.0/lib/tiny_tds/client.rb:54:in connect'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/tiny_tds-2.0.0/lib/tiny_tds/client.rb:54:ininitialize' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/connection_adapters/sqlserver_adapter.rb:375:in new'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/connection_adapters/sqlserver_adapter.rb:375:indblib_connect' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/connection_adapters/sqlserver_adapter.rb:361:in connect'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/connection_adapters/sqlserver_adapter.rb:59:ininitialize' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/sqlserver_base.rb:13:in new'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-sqlserver-adapter-5.2.0/lib/active_record/sqlserver_base.rb:13:insqlserver_connection' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:811:in new_connection'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:855:incheckout_new_connection' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:834:in try_to_checkout_new_connection'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:795:inacquire_connection' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:523:in checkout'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:382:inconnection' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_adapters/abstract/connection_pool.rb:1014:in retrieve_connection'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_handling.rb:118:inretrieve_connection' /home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/connection_handling.rb:90:in connection'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/tasks/database_tasks.rb:172:inmigrate'/home/vagrant/.rvm/gems/ruby-2.3.3/gems/activerecord-5.2.3/lib/active_record/railties/databases.rake:60:in block (2 levels) in <main>'
/home/vagrant/.rvm/gems/ruby-2.3.3/gems/rake-12.3.2/exe/rake:27:in' /home/vagrant/.rvm/gems/ruby-2.3.3/bin/ruby_executable_hooks:15:in eval'
/home/vagrant/.rvm/gems/ruby-2.3.3/bin/ruby_executable_hooks:15:in' Tasks: TOP => db:migrate

流浪文件

# -*- mode: ruby -*-
# vi: set ft=ruby :

# All Vagrant configuration is done below. The "2" in Vagrant.configure
# configures the configuration version (we support older styles for
# backwards compatibility). Please don't change it unless you know what
# you're doing.
Vagrant.configure("2") do |config|
  # The most common configuration options are documented and commented below.
  # For a complete reference, please see the online documentation at
  # https://docs.vagrantup.com.

  # Every Vagrant development environment requires a box. You can search for
  # boxes at https://vagrantcloud.com/search.
  config.vm.box = "jaxmetalmax/debian8-rubydev"

  # Disable automatic box update checking. If you disable this, then
  # boxes will only be checked for updates when the user runs
  # `vagrant box outdated`. This is not recommended.
  # config.vm.box_check_update = false

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine. In the example below,
  # accessing "localhost:8080" will access port 80 on the guest machine.
  # NOTE: This will enable public access to the opened port
  # config.vm.network "forwarded_port", guest: 80, host: 8080

  # Create a forwarded port mapping which allows access to a specific port
  # within the machine from a port on the host machine and only allow access
  # via 127.0.0.1 to disable public access
  # config.vm.network "forwarded_port", guest: 80, host: 8080, host_ip: "127.0.0.1"

  # Create a private network, which allows host-only access to the machine
  # using a specific IP.
  # config.vm.network "private_network", ip: "192.168.33.10"

  # Create a public network, which generally matched to bridged network.
  # Bridged networks make the machine appear as another physical device on
  # your network.
  # config.vm.network "public_network"

  # Share an additional folder to the guest VM. The first argument is
  # the path on the host to the actual folder. The second argument is
  # the path on the guest to mount the folder. And the optional third
  # argument is a set of non-required options.
  # config.vm.synced_folder "../data", "/vagrant_data"
  config.vm.synced_folder "C:/EGodoy/Sites", "/home/vagrant/sites"
  config.vm.network "private_network", ip: "192.168.33.10"

  # Provider-specific configuration so you can fine-tune various
  # backing providers for Vagrant. These expose provider-specific options.
  # Example for VirtualBox:
  #
  # config.vm.provider "virtualbox" do |vb|
  #   # Display the VirtualBox GUI when booting the machine
  #   vb.gui = true
  #
  #   # Customize the amount of memory on the VM:
  #   vb.memory = "1024"
  # end
  #
  # View the documentation for the provider you are using for more
  # information on available options.

  # Enable provisioning with a shell script. Additional provisioners such as
  # Puppet, Chef, Ansible, Salt, and Docker are also available. Please see the
  # documentation for more information about their specific syntax and use.
  # config.vm.provision "shell", inline: <<-SHELL
  #   apt-get update
  #   apt-get install -y apache2
  # SHELL
end

【问题讨论】:

  • 你的 vagrant 文件长什么样?
  • 我已经编辑了帖子并添加了 vagrant 文件
  • 明确一点,SQL server 是安装在 vagrant VM 还是宿主机上?
  • 主机。我在 vagrant 工作,但我尝试在主机(Windows 10)中安装 ruby​​、rails、freetds 和所有先决条件,但我得到了同样的错误
  • 如果我在主机中只使用 'pcname',我会收到这个错误 'TinyTds::Error: closed connection'

标签: ruby-on-rails sql-server debian vagrant tiny-tds


【解决方案1】:

据我所知,您没有在 vagrant VM 和主机之间转发任何端口,您需要为在 VM 上运行的 RoR 执行此操作才能连接到 SQL Server 的端口正在主机上运行。在 vagrant 文件中添加这一行:

config.vm.network "forwarded_port", guest: 1434, host: 1434

您可能还需要取消注释此行,以便您可以访问您的 RoR 站点:

config.vm.network "forwarded_port", guest: 80, host: 8080

或将上面的端口更改为您正在运行 RoR 的任何端口(我相信 3000 是默认值,所以 3000 而不是 80

【讨论】:

  • 我改变了上面的,我得到了同样的错误。我也尝试过使用 vm_tiny_tds-2.1.2 gem 而不是 tiny_tds-2.0.0
  • 可以肯定的是,您已经在 VM 机器上安装了这些 gem,对吗?我在想你的database.yml 文件中的host 应该是localhost 而不是你所拥有的。在将这些端口转发配置添加到 vagrant 文件后,请务必重新启动 vagrant。
  • 是的,我在更改端口时重新启动了 vagrant。 Gems 安装在 VM 和 freeTDS 中。我尝试使用 localhost 也没有用。
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