Intermittente "Dipendenze circolari rilevate durante l'autoloading costante" errori di produzione

Question

Ho un progetto Rails che, di tanto in tanto, genera questa eccezione nella produzione, in modo non riproducibile. Tutto funziona bene in fase di sviluppo e test, e apparentemente anche in produzione, ma ExceptionNotifier ogni qualche settimana mi invia con questa eccezione ...

Non ho idea di cosa sta succedendo, quindi ho intenzione di scaricare quante più informazioni sul mio ambiente che ritengo sia rilevante, nella speranza che parte di ciò possa aiutare a risolverlo. (. Cioè non JRuby)

• di Ruby 2.1.5
• Rails 4.2.1
• Running in Heroku, con regolare Rubino interprete

L'errore completo è:

"Circular dependency detected while autoloading constant DeferredUpdatesHelper" 

DeferredUpdatesHelper è un modulo definito in lib/deferred_updates_helper.rb, come tale:

module DeferredUpdatesHelper 
    def self.something_something(params) 
    end 
end 

Non riesco a pensare a nessuna dipendenza di questo modulo. È molto semplice, e per quanto posso dire, tutto ciò di cui ha bisogno è una variabile globale chiamata $ RedisPool, quindi non sono sicuro di come possa esserci una dipendenza circolare ...

Questo modulo è utilizzato da uno dei miei modelli: models/user.rb

class User < ActiveRecord::Base 
    def self.process_deferred_something 
    DeferredUpdatesHelper.something_something(params) do 
     # do stuff 
    end 
    end 
end 

Questo metodo viene chiamato da un ActiveJob:

class SomeJob < ActiveJob::Base 
    queue_as :default 

    def perform 
    User.process_deferred_something 
    end 
end 

che viene eseguito all'interno di un processo Sidekiq, e funziona perfettamente felicemente ogni 10 minuti, solo che ogni tanto ottengo una delle questi ...

Non c'è nessuna istruzione require da nessuna parte, o almeno in nessuno di questi file menzionati ... E come accennato, in dev tutto funziona e basta.

dello stack:

/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:492:in `load_missing_constant' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:184:in `const_missing' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:526:in `load_missing_constant' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:184:in `const_missing' 
/app/app/models/user.rb:93:in `process_deferred_something' 
/app/app/jobs/some_job.rb:5:in `perform' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/execution.rb:32:in `block in perform_now' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:117:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:117:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:555:in `block (2 levels) in compile' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:498:in `block (2 levels) in around' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:343:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:343:in `block (2 levels) in simple' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/active_job.rb:46:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/active_job.rb:46:in `perform' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/active_job.rb:20:in `block (3 levels) in <top (required)>' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:441:in `instance_exec' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:441:in `block in make_lambda' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:342:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:342:in `block in simple' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:497:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:497:in `block in around' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:498:in `block (2 levels) in around' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:343:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:343:in `block (2 levels) in simple' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:23:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:23:in `block (4 levels) in <module:Logging>' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/notifications.rb:164:in `block in instrument' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/notifications.rb:164:in `instrument' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:22:in `block (3 levels) in <module:Logging>' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:43:in `block in tag_logger' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/tagged_logging.rb:68:in `block in tagged' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/tagged_logging.rb:26:in `tagged' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/tagged_logging.rb:68:in `tagged' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:43:in `tag_logger' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/logging.rb:19:in `block (2 levels) in <module:Logging>' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:441:in `instance_exec' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:441:in `block in make_lambda' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:342:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:342:in `block in simple' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:497:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:497:in `block in around' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:505:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:92:in `_run_callbacks' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:776:in `_run_perform_callbacks' 
/app/vendor/bundle/ruby/2.1.0/gems/activesupport-4.2.1/lib/active_support/callbacks.rb:81:in `run_callbacks' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/execution.rb:31:in `perform_now' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/execution.rb:21:in `execute' 
/app/vendor/bundle/ruby/2.1.0/gems/activejob-4.2.1/lib/active_job/queue_adapters/sidekiq_adapter.rb:40:in `perform' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/processor.rb:75:in `execute_job' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/processor.rb:52:in `block (2 levels) in process' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:127:in `block in invoke' 
/app/lib/sidekiq_monitoring.rb:46:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:129:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/sidekiq.rb:33:in `block in call' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/controller_instrumentation.rb:353:in `perform_action_with_newrelic_trace' 
/app/vendor/bundle/ruby/2.1.0/gems/newrelic_rpm-3.11.2.286/lib/new_relic/agent/instrumentation/sidekiq.rb:29:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:129:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/server/active_record.rb:6:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:129:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/server/retry_jobs.rb:74:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:129:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/server/logging.rb:11:in `block in call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/logging.rb:24:in `with_context' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/server/logging.rb:7:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:129:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:132:in `call' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/middleware/chain.rb:132:in `invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/processor.rb:51:in `block in process' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/processor.rb:98:in `stats' 
/app/vendor/bundle/ruby/2.1.0/gems/sidekiq-3.3.3/lib/sidekiq/processor.rb:50:in `process' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in `public_send' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/calls.rb:26:in `dispatch' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/calls.rb:122:in `dispatch' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/cell.rb:60:in `block in invoke' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/cell.rb:71:in `block in task' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/actor.rb:357:in `block in task' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/tasks.rb:57:in `block in initialize' 
/app/vendor/bundle/ruby/2.1.0/gems/celluloid-0.16.0/lib/celluloid/tasks/task_fiber.rb:15:in `block in create' 

Qualsiasi idea di quello che potrebbe essere in corso, o come posso risolvere il problema?

Answer 1

L'errore di dipendenza circolare suona probabilmente come un problema di multithreading.

Si potrebbe provare l'aggiunta di lib a eager_load_paths in questo modo:

config.eager_load_paths += ["#{config.root}/lib"]

mentre le applicazioni in ambienti di produzione sono desiderosi caricato di default con config.eager_load!, lib non è un percorso incluso da. Puoi controllare cosa è incluso nel tuo eager_load_paths eseguendo Rails.configuration.eager_load_paths nella console.

Non sono sicuro se questo risolve il problema, ma è l'unica cosa che mi è venuta in mente. Inoltre, se ora sei riuscito a risolvere il problema, mi piacerebbe sentire un aggiornamento sulla soluzione.