There was an exception - RuntimeError(No async task available!)

[deepj]

When I added the latest falcon and async-postgres in my Rails application so I got this error while a first request:

There was an exception - RuntimeError(No async task available!)
~/.gem/ruby/2.7.0/gems/async-1.24.1/lib/async/task.rb:183:in `current'
~/.gem/ruby/2.7.0/gems/async-postgres-0.1.0/lib/async/postgres/pool.rb:30:in `initialize'
~/.gem/ruby/2.7.0/gems/async-postgres-0.1.0/lib/async/postgres.rb:29:in `new'
~/.gem/ruby/2.7.0/gems/async-postgres-0.1.0/lib/async/postgres.rb:29:in `connect'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/postgresql_adapter.rb:46:in `postgresql_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:889:in `new_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:933:in `checkout_new_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:912:in `try_to_checkout_new_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:873:in `acquire_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:595:in `checkout'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:439:in `connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:1121:in `retrieve_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_handling.rb:238:in `retrieve_connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/connection_handling.rb:206:in `connection'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/model_schema.rb:340:in `table_exists?'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/attribute_methods/primary_key.rb:92:in `get_primary_key'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/attribute_methods/primary_key.rb:80:in `reset_primary_key'
~/.gem/ruby/2.7.0/gems/activerecord-6.0.2.1/lib/active_record/attribute_methods/primary_key.rb:68:in `primary_key'
~/.gem/ruby/2.7.0/gems/orm_adapter-0.5.0/lib/orm_adapter/adapters/active_record.rb:17:in `get'
~/.gem/ruby/2.7.0/gems/devise-4.7.1/lib/devise/models/authenticatable.rb:237:in `serialize_from_session'
~/.gem/ruby/2.7.0/gems/devise-4.7.1/lib/devise.rb:485:in `block (2 levels) in configure_warden!'
~/.gem/ruby/2.7.0/gems/warden-1.2.8/lib/warden/session_serializer.rb:35:in `fetch'
~/.gem/ruby/2.7.0/gems/warden-1.2.8/lib/warden/proxy.rb:224:in `user'
~/app/app/channels/application_cable/connection.rb:15:in `find_verified_user'
~/app/app/channels/application_cable/connection.rb:8:in `connect'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/connection/base.rb:171:in `handle_open'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker.rb:59:in `block in invoke'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker.rb:41:in `block in work'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/callbacks.rb:112:in `block in run_callbacks'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker/active_record_connection_management.rb:16:in `block in with_database_connections'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/connection/tagged_logger_proxy.rb:24:in `block in tag'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/tagged_logging.rb:80:in `block in tagged'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/tagged_logging.rb:28:in `tagged'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/tagged_logging.rb:80:in `tagged'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/connection/tagged_logger_proxy.rb:24:in `tag'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker/active_record_connection_management.rb:16:in `with_database_connections'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/engine.rb:62:in `block (4 levels) in <class:Engine>'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/execution_wrapper.rb:88:in `wrap'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/engine.rb:57:in `block (3 levels) in <class:Engine>'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/callbacks.rb:121:in `instance_exec'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/callbacks.rb:121:in `block in run_callbacks'
~/.gem/ruby/2.7.0/gems/activesupport-6.0.2.1/lib/active_support/callbacks.rb:139:in `run_callbacks'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker.rb:40:in `work'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker.rb:58:in `invoke'
~/.gem/ruby/2.7.0/gems/actioncable-6.0.2.1/lib/action_cable/server/worker.rb:53:in `block in async_invoke'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:348:in `run_task'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:337:in `block (3 levels) in create_worker'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:320:in `loop'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:320:in `block (2 levels) in create_worker'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:319:in `catch'
~/.gem/ruby/2.7.0/gems/concurrent-ruby-1.1.5/lib/concurrent/executor/ruby_thread_pool_executor.rb:319:in `block in create_worker'

[deepj]

Ah, I guess this is a duplicate of #5

[ioquatix]

Right now, this is only POC. Do not use it in a production rails app.