StackExchange.Redis.RedisTimeoutException: Timeout exception response

Question

Our system uses Redis to save some data. Sometimes, on my application's insights I get a timeout exception like this:

Timeout awaiting response (outbound=0KiB, inbound=0KiB, 20640ms
elapsed, timeout is 20000ms), command=GET, active: GET
9ba45b00-52a6-41da-9acb-621665862a3b:UmsUserData, next: GET
0e730553-b6f5-4882-8c96-b853d549e385:UmsUserData, inst: 0, qu: 0, qs:
3, aw: False, rs: ComputeResult, ws: Idle, in: 1044, serverEndpoint:
Unspecified/azlink012.redis.cache.windows.net:6380, mgr: 9 of
10 available, clientName: RD0050F2931DEA, IOCP:
(Busy=1,Free=999,Min=100,Max=1000), WORKER:
(Busy=26,Free=32741,Min=100,Max=32767), v: 2.0.601.3402 (Please take a
look at this article for some common client-side issues that can cause
timeouts:
https://stackexchange.github.io/StackExchange.Redis/Timeouts)

I have investigated some parameters like IOCP(1<100) and WORKER(26<100) and they are normal. What is the problem here?

Yes, I see WORKER: (Busy=10,Free=32757,Min=2,Max=32767) busy(10) > Min(2). But in my case, they are normal. There may be another cause that the message doesn't mention (some thing like network CPU)? — cuong nguyen manh
– cuong nguyen manh, Commented Jul 6, 2021 at 14:27

cuong nguyen manh · Accepted Answer · 2021-07-07 08:59:36Z

1

I found my problem on GitHub.

if you are working with Redis, you should design your application such that it can handle connection blips. There are number of reasons due to which it can happen like failover, Redis patching etc.

https://github.com/StackExchange/StackExchange.Redis/issues/1378

answered Jul 7, 2021 at 8:59

cuong nguyen manh

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