Story There were many failed requests while we testing our system by VSTS cloud test. Concurrent 10000 users kept playing games or viewing reports. >Timeout performing HEXISTS XXX.YYY:OAuthTokenStorages:AccessToken, inst: 267, mgr: Inactive, err: never, queue: 0, qu: 0, qs: 0, qc: 0, wr: 0, wq: 0, in: 0, ar: 0, clientName: RD__________F9, serverEndpoint: Unspecified/xxx.redis.cache.windows.net:6380, keyHashSlot: 1758, IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER:…