We have configured redis with the default configuration provided here in https://github.com/colinmollenhour/Cm_RedisSession in a production cluster.
But randomly we are facing 503's may be for 2 ip in a span of 24 hrs time. Message in the redis_session.log file says 276 total requests but nginx access log have far less than 270 request.
Session concurrency exceeded for ID sess_cboeju5etk6e647po1e7r3c4m6; displaying HTTP 503 (6 waiting, 276 total requests)
Any help would be much appreciated.
