Heroku pg 迁移错误“PG：DataCorrupted：错误”

Question

尝试运行heroku run rake db:migrate 时出现以下错误。我试过heroku pg:reset，我试过heroku restart。我也尝试创建一个新应用程序并重新开始，但问题仍然存在。这可能是什么问题？

Running `rake db:migrate` attached to terminal... up, run.7662
Migrating to CreateChannels (20140424224543)
==  CreateChannels: migrating =================================================
-- create_table(:channels)
PG::DataCorrupted: ERROR:  could not read block 0 in file "base/57396/12684": read only 0 of 8192 bytes
: CREATE TABLE "channels" ("id" serial primary key, "name" character varying(255), "user_id" integer, "created_at" timestamp, "updated_at" timestamp)
rake aborted!
StandardError: An error has occurred, this and all later migrations canceled:

PG::DataCorrupted: ERROR:  could not read block 0 in file "base/57396/12684": read only 0 of 8192 bytes
: CREATE TABLE "channels" ("id" serial primary key, "name" character varying(255), "user_id" integer, "created_at" timestamp, "updated_at" timestamp) /app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:128:in `async_exec'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:128:in `block in execute'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:435:in `block in log'
/app/vendor/bundle/ruby/2.0.0/gems/activesupport-4.0.2/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract_adapter.rb:430:in `log'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/postgresql/database_statements.rb:127:in `execute'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/schema_statements.rb:190:in `create_table'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:625:in `block in method_missing'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:597:in `block in say_with_time'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:597:in `say_with_time'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:617:in `method_missing'
/app/db/migrate/20140424224543_create_channels.rb:3:in `change'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:571:in `exec_migration'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:555:in `block (2 levels) in migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:554:in `block in migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/connection_pool.rb:294:in `with_connection'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:553:in `migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:709:in `migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:959:in `block in execute_migration_in_transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:1005:in `block in ddl_transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `block in transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:210:in `within_new_transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/connection_adapters/abstract/database_statements.rb:202:in `transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/transactions.rb:209:in `transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:1005:in `ddl_transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:958:in `execute_migration_in_transaction'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:920:in `block in migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:916:in `each'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:916:in `migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:764:in `up'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/migration.rb:742:in `migrate'
/app/vendor/bundle/ruby/2.0.0/gems/activerecord-4.0.2/lib/active_record/railties/databases.rake:42:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)

[编辑] 我的用于创建通道表的迁移文件如下所示（没什么特别的）

  class CreateChannels < ActiveRecord::Migration
    def change
      create_table :channels do |t|
        t.string :name
        t.integer :user_id

        t.timestamps
      end
    end
  end

Answer 1

我昨晚联系了 heroku 支持团队，我遇到了同样的问题，现在一切都恢复正常了。以下是他们的回应。

很遗憾，您的数据库似乎存在问题 昨晚导致停电几个小时，但是 我们的一位随叫随到的数据库工程师已经恢复了。这 问题根本不是你造成的，是硬件故障 主机服务器。

希望这会有所帮助。

Answer 2

我现在遇到了同样的问题。我没有任何生产数据，所以只是建立一个新的数据库。虽然很烦人

编辑：当我再次运行迁移时刚刚修复了自己

编辑 2：仍然损坏。当我尝试运行我的第二个迁移文件时，我收到了错误

PG::DataCorrupted: ERROR:  could not read block 1 in file "base/117039/12684": read only 0 of 8192 bytes

很烦

刚刚尝试在 Heroku 上提交票证。填写了包含大量信息的表单并提交只是为了得到一条消息说我没有创建任何支持票！

Answer 3

我遇到了同样的问题，我从 https://dashboard.heroku.com/apps 删除了数据库（这是海军） 添加了一个新的 PG 数据库（这是蓝色的）

From the terminal ran:
heroku config

You should see your db url
heroku config:set DATABASE_URL=postgres://your-db-url

Ran
heroku run rake db:migrate

一切正常。 我仍然不确定为什么会这样！