ページがうまく表示されないという問い合わせを受けてnginxのログを調べていたところ、見なれないレスポンスコードを発見しました access_log 2015-08-04 06:00:54 access_log {"host":"111.111.111.111","user":"-","method":"GET","path":"/hoge/list","code":499,"size":0,"referer":"","agent":"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0","request_time":59.447,"forwarded_for":"111.111.111.111","cookie":""} 何度か試してみたところどれも60秒弱で現象が発生していたのでタイムアウトの
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