RAKE 0.8.7 db：迁移或 db：种子运行时错误，"stack level too deep"

Question

• 耙0.8.7
• 轨道2.3.18
• RubyGems 1.7.2

我研究了类似的问题，它们不适用于这里：

• 在任务中不执行任何递归
• 不使用Bundler或RVM（如果使用Bundleer是解决方案，那么我就完蛋了）
• 不包括ActionView:：帮助程序
• 不使用名为scrubyt的宝石
• 更改代码以使用事务并不能修复它

Braindead简单行更新。如果我将其作为迁移或种子运行，结果也是一样的。

class AddValuesForPlanApiQuotaDaily < ActiveRecord::Migration
  def self.up
    p = Plan.find(10)
    p.api_quota_daily = 3000
    p.save!
  end
end

或从db/seeds.rb:

p = Plan.find(10)
if p.api_quota_daily.nil?
    p.api_quota_daily = 3000
    p.save!
end

结果：

$ rake db:seed --trace
** Invoke db:seed (first_time)
** Invoke environment (first_time)
** Execute environment
** Execute db:seed
rake aborted!
stack level too deep

跟踪：

/home/fun/dev/company/project/vendor/plugins/deadlock_retry/lib/deadlock_retry.rb:45:in `transaction_without_deadlock_handling'
/home/fun/dev/company/project/vendor/plugins/deadlock_retry/lib/deadlock_retry.rb:45:in `transaction'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.18/lib/active_record/transactions.rb:200:in `save!'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.18/lib/active_record/transactions.rb:208:in `rollback_active_record_state!'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.3.18/lib/active_record/transactions.rb:200:in `save!'
/home/fun/dev/company/project/db/seeds.rb:8
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.18/lib/active_support/dependencies.rb:171:in `load_without_new_constant_marking'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.18/lib/active_support/dependencies.rb:171:in `load'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.18/lib/active_support/dependencies.rb:547:in `new_constants_in'
/usr/lib/ruby/gems/1.8/gems/activesupport-2.3.18/lib/active_support/dependencies.rb:171:in `load'
/usr/lib/ruby/gems/1.8/gems/rails-2.3.18/lib/tasks/databases.rake:211
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `call'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:636:in `execute'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `each'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:631:in `execute'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:597:in `invoke_with_call_chain'
/usr/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:590:in `invoke_with_call_chain'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:583:in `invoke'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2051:in `invoke_task'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `each'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2029:in `top_level'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2023:in `top_level'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2001:in `run'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:2068:in `standard_exception_handling'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake.rb:1998:in `run'
/usr/lib/ruby/gems/1.8/gems/rake-0.8.7/bin/rake:31
/usr/bin/rake:19:in `load'
/usr/bin/rake:19

无法对此项目升级rake或开始使用bundler。

Answer 1

另一个选项实际上是，在迁移中使用原始SQL：

class AddValuesToPlanApiQuotas < ActiveRecord::Migration
  def self.up
  plan_id_api_limits = {
      10 => 3000,
      20 => 3000,
      30 => 5000,
      40 => 10000,
      50 => 20000,
      60 => 35000
    }
    plan_id_api_limits.each do |k,v|
      query = "UPDATE plans set api_quota_daily = #{v} where id=#{k}"
      ActiveRecord::Base.connection.execute(query);
    end
  end
end

显然，我不能在0.8.7的rake迁移或种子任务中使用ActiveRecord。

Answer 2

不幸的是，我不能凭经验说话，但我想知道这个博客的内容是否能帮助你：

http://dalibornasevic.com/posts/5-ruby-stack-level-too-deep-systemstackerror

基本上：

ulimit -a | grep 'stack size'

和

ulimit -s <some reasonably larger number>

希望能有所帮助。

当然，我假设你是在一个类似Unix的系统上做这件事的。

Answer 3

这是一种可怕的做法，但我没有时间执行任务，今天不能用rake研究问题。

ruby script/runner db/seeds.rb

数据