Couchbase Ruby client library

Fatal Deadlock error when calling Couchbase.new on Ruby 1.9.2

Details

  • Type: Bug Bug
  • Status: Closed Closed
  • Priority: Critical Critical
  • Resolution: Fixed
  • Affects Version/s: None
  • Fix Version/s: None
  • Component/s: None
  • Security Level: Public
  • Labels:
    None
  • Environment:
    Mac OSX Lion Ruby 1.9.2 (p180)
  • Flagged:
    Impediment

Description

Using the example code referenced in RCBC-2 (http://www.couchbase.org/issues/browse/RCBC-2)

I simply switched to using ruby 1.9.2 and attempted to run.

/Users/dave/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.2/thread.rb:71:in `sleep': deadlock detected (fatal)
from /Users/dave/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.2/thread.rb:71:in `wait'
from /Users/dave/.rvm/gems/ruby-1.9.2-p180/bundler/gems/couchbase-ruby-client-de0885eaa70f/lib/couchbase/latch.rb:66:in `block in wait'
from <internal:prelude>:10:in `synchronize'
from /Users/dave/.rvm/gems/ruby-1.9.2-p180/bundler/gems/couchbase-ruby-client-de0885eaa70f/lib/couchbase/latch.rb:65:in `wait'
from /Users/dave/.rvm/gems/ruby-1.9.2-p180/bundler/gems/couchbase-ruby-client-de0885eaa70f/lib/couchbase/bucket.rb:80:in `initialize'
from /Users/dave/.rvm/gems/ruby-1.9.2-p180/bundler/gems/couchbase-ruby-client-de0885eaa70f/lib/couchbase.rb:37:in `new'
from /Users/dave/.rvm/gems/ruby-1.9.2-p180/bundler/gems/couchbase-ruby-client-de0885eaa70f/lib/couchbase.rb:37:in `new'
from hello-world.rb:5:in `<main>'

Activity

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Matt Ingenthron made changes -
Field Original Value New Value
Assignee Matt Ingenthron [ ingenthr ] Sergey Avseyev [ avsej ]
Sergey Avseyev made changes -
Status Open [ 1 ] In Progress [ 3 ]
Sergey Avseyev made changes -
Comment [ Something strange is happening with latch implementation. Consider following example:

{code:ruby}
require 'thread'

class Latch
  def wait
    @lock = Mutex.new
    @condition = ConditionVariable.new

    @lock.synchronize do
      @condition.wait(@lock)
    end
  end

  def orig_wait
    lock = Mutex.new
    condition = ConditionVariable.new

    lock.synchronize {
      condition.wait(lock)
    }
  end
end
{code}

When I call Latch.new.orig_wait all is ok, but for Latch.new.wait raises error. It's strange because I wrote test for latch and they were passing on ruby 1.9.2 before I published the changeset. So I keep looking for the issue ]
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Sergey Avseyev added a comment -
This issue fixed. And isn't reproducing on version 0.9.5
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Sergey Avseyev added a comment - This issue fixed. And isn't reproducing on version 0.9.5
Sergey Avseyev made changes -
Status In Progress [ 3 ] Resolved [ 5 ]
Resolution Fixed [ 1 ]
Sergey Avseyev made changes -
Status Resolved [ 5 ] Closed [ 6 ]

People

  • Assignee:
    Sergey Avseyev
    Reporter:
    David Rice
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Dates

  • Created:
    Updated:
    Resolved: