mysql-Capistrano“ cap deploy：migrations”失败,因为它尝试运行所有迁移,而不仅是正在运行的迁移

我尝试使用“ cap deploy：migrations”进行部署,因为我需要在实时服务器上执行3个新的迁移.结果是：

executing "cd /home/martin/public_html/project/releases/20110905131238; bundle exec rake RAILS_ENV=production  db:migrate"
    servers: ["50.56.82.190"]
    [50.56.82.190] executing command
 ** [out :: 50.56.82.190] ==  CreateUsers: migrating ====================================================
 ** [out :: 50.56.82.190] -- create_table(:users)
 ** [out :: 50.56.82.190] rake aborted!
 ** [out :: 50.56.82.190] An error has occurred, all later migrations canceled:
 ** [out :: 50.56.82.190] 
 ** [out :: 50.56.82.190] Mysql2::Error: Table 'users' already exists: CREATE TABLE `users` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `name` varchar(255), `email` varchar(255), `created_at` datetime, `updated_at` datetime) ENGINE=InnoDB
 ** [out :: 50.56.82.190] 
 ** [out :: 50.56.82.190] Tasks: TOP => db:migrate
 ** [out :: 50.56.82.190] (See full trace by running task with --trace)
    command finished in 5816ms
failed: "sh -c 'cd /home/martin/public_html/project/releases/20110905131238; bundle exec rake RAILS_ENV=production  db:migrate'" on 50.56.82.190

通过先前的部署,我已经在实时服务器上创建了一个正常工作的数据库.我创建了3个新迁移(由于要使用新的gems carrierwave和rmagick上载图像),因此我希望现在进行部署.显然,请使用cap deploy：migrations尝试从第一个迁移运行所有迁移,而不仅仅是挂起的迁移.

我的deploy.rb是：

require 'bundler/capistrano'
set :application, "otg.in"
set :domain, "otg.in"
set :user, "martin"
set :sudo_use, false
set :repository, "git@github.com:Martin118/otg.in.git"
set :local_repository,  '~/rails_projects/otg.in/.git'
set :port, 48000
set :deploy_to, "/home/martin/public_html/#{application}"
set :scm, :git
set :branch, "master"
default_run_options[:pty] = true
ssh_options[:forward_agent] = true

server "50.56.82.190", :app, :web, :db, :primary => true

after "deploy", "deploy:bundle_gems"
after "deploy:bundle_gems", "deploy:restart"
after "deploy:update_code", "deploy:migrate"
after "deploy", "deploy:cleanup"

# Passenger
namespace :deploy do
     task :bundle_gems do
    run "cd #{deploy_to}/current && bundle install vendor/gems"
  end
  task :start do ; end
  task :stop do ; end
  task :restart, :roles => :app, :except => { :no_release => true } do
    run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
  end
end

require 'whenever/capistrano'

我运行rails 3.0.8,cap deploy：check给我“您似乎已安装了所有必要的依赖项”.

有任何想法吗？还是您需要更多信息？

谢谢你的帮助！

实时运行的schema.rb是：

ActiveRecord::Schema.define(:version => 20110130000344) do

  create_table "businesses", :force => true do |t|
    t.string   "business_name"
    t.string   "postal_code"
    t.string   "business_email"
    t.string   "phone"
    t.string   "fax"
    t.string   "web"
    t.text     "description"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "user_id"
    t.text     "address"
    t.integer  "city_id"
    t.integer  "state_id"
  end

  create_table "cities", :force => true do |t|
    t.string   "name"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.integer  "state_id"
  end

  create_table "states", :force => true do |t|
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "name"
  end

  create_table "users", :force => true do |t|
    t.string   "name"
    t.string   "email"
    t.datetime "created_at"
    t.datetime "updated_at"
    t.string   "encrypted_password"
    t.string   "salt"
    t.boolean  "admin",              :default => false
  end

  add_index "users", ["email"], :name => "index_users_on_email", :unique => true

end

另一个更新：从schema_migrations中选择*；在我的开发数据库上给我：

 —————-
|版本|
 —————-
| 20110112163009 |
| 20110113141953 |
| 20110113192958 |
| 20110114214158 |
| 20110115002206 |
| 20110119100832 |
| 20110120134443 |
| 20110127171331 |
| 20110127171427 |
| 20110127171921 |
| 20110127172903 |
| 20110127183252 |
| 20110129201949 |
| 20110129204159 |
| 20110129205833 |
| 20110130000344 |
| 20110808142844 |
| 20110809133339 |
| 20110809142303 |
| 20110809154349 |
| 20110810092306 |
| 20110810093531 |
| 20110812085010 |
 —————-

但是用我得到的MySQL工作台检查(仍然是开发数据库)：

错误：project_development.schema_migrations：表数据不可编辑,因为没有为表定义主键

另外,生产数据库上的schema_migrations中的select *仅给我一个迁移(我尝试更新之前的最后一个迁移)：

 —————-
|版本|
 —————-
| 0 |
| 20110130000344 |
 —————-

有人知道这里发生了什么吗？

谢谢！

解决方法:

解决方案是手动将缺少的迁移添加到schema_migrations中.似乎该表丢失了一些数据.无论如何,通过添加已经直接使用“将INSERT插入schema_migrations(版本)值(‘2011 ….’);”中的迁移,然后上限deploy：migrations从新迁移开始就可以顺利进行.

标签：mysql2,capistrano,ruby-on-rails-3,ruby-on-rails,mysql
来源： https://codeday.me/bug/20191208/2087913.html