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Rails 3.2、Mongoid 3.1.7、Moped 1.5.3、および Resque 1.24.1 を使用しています。

Resque ワーカーで "Moped::Protocol::Command failed with error nil" [1] エラーが繰り返し発生します。

This issueとMoped repo のthis oneから、これはおそらく Resque のフォークが原因だと思われますが、どちらも私が使用しているよりも古いバージョンの Moped に関するものであり、特定の特定の情報を見つけることができませんでした。 Mongoid でうまく動作するように Resque を構成します。

Resque ワーカーのエラーを解決するにはどうすればよいですか?

[1] 完全なエラー: Exception: Moped::Errors::OperationFailure Error: The operation: #<Moped::Protocol::Command @length=58 @request_id=3 @response_to=0 @op_code=2004 @flags=[] @full_collection_name="admin.$cmd" @skip=0 @limit=-1 @selector={:ismaster=>1} @fields=nil> failed with error nil /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:99:in `block in command' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:600:in `[]' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:600:in `block (3 levels) in flush' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:599:in `map' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:599:in `block (2 levels) in flush' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:150:in `ensure_connected' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:595:in `block in flush' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:610:in `logging' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:594:in `flush' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:583:in `process' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:92:in `command' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/node.rb:409:in `refresh' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cluster.rb:171:in `block in refresh' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cluster.rb:185:in `each' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cluster.rb:185:in `refresh' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cluster.rb:135:in `nodes' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cluster.rb:206:in `with_primary' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/session/context.rb:108:in `with_node' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cursor.rb:137:in `load_docs' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/cursor.rb:25:in `each' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/query.rb:76:in `each' /shared/bundle/ruby/2.2.0/gems/moped-1.5.3/lib/moped/query.rb:76:in `each' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/contextual/mongo.rb:423:in `entries' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/contextual/mongo.rb:423:in `check_existence' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/contextual/mongo.rb:146:in `exists?' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/contextual.rb:19:in `exists?' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/validations/uniqueness.rb:273:in `validate_root' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/validations/uniqueness.rb:52:in `block in validate_each' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/validations/queryable.rb:23:in `with_query' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/validations/uniqueness.rb:46:in `validate_each' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validator.rb:153:in `block in validate' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validator.rb:150:in `each' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validator.rb:150:in `validate' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:310:in `_callback_before_265' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:418:in `_run__123721054543109017__validate__3207805434451540367__callbacks' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:405:in `__run_callback' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:385:in `_run_validate_callbacks' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:81:in `run_callbacks' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/callbacks.rb:130:in `run_callbacks' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validations.rb:228:in `run_validations!' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validations/callbacks.rb:53:in `block in run_validations!' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:403:in `_run__123721054543109017__validation__3207805434451540367__callbacks' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:405:in `__run_callback' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:385:in `_run_validation_callbacks' /shared/bundle/ruby/2.2.0/gems/activesupport-3.2.22/lib/active_support/callbacks.rb:81:in `run_callbacks' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/callbacks.rb:130:in `run_callbacks' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validations/callbacks.rb:53:in `run_validations!' /shared/bundle/ruby/2.2.0/gems/activemodel-3.2.22/lib/active_model/validations.rb:195:in `valid?' /shared/bundle/ruby/2.2.0/gems/mongoid-3.1.7/lib/mongoid/validations.rb:84:in `valid?' /releases/20160315172839/app/performers/garmin_receive_push.rb:11:in `block in perform' /releases/20160315172839/app/performers/garmin_receive_push.rb:9:in `map' /releases/20160315172839/app/performers/garmin_receive_push.rb:9:in `perform'

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1 に答える 1

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これはうまくいったようです。昨日の Resque ワーカーの 30 以上のエラーから、過去 18 時間で 0 になりました。

私のResque構成に追加されました：

Resque.before_fork do
    ::Mongoid.default_session.disconnect
end

ここで何がうまくいかなかったのかについて、私は非常に首尾一貫した説明を持っていません。Resque ワーカーは子プロセスをフォークし、次に子プロセスがジョブを処理するため、現在の操作上の仮定は、これはリンクされた問題でユニコーンとパッセンジャーのフォークで説明されている問題に似ているということです。

于 2016-03-17T17:49:52.307 に答える