Azure Redis

Upadhya, Srinath 1

Timeout performing EXISTS (5000ms), next: EXISTS inst: 0, qu: 0, qs: 0, aw: False, bw: SpinningDown, rs: ReadAsync, ws: Idle, in: 0, serverEndpoint: swaclientsvc-redis-prod.redis.cache.windows.net:6380, mc: 1/1/0, mgr: 10 of 10 available, clientName: swa-client-svc-microservice-6db57885c8-sfzsw(SE.Redis-v2.6.66.47313), IOCP: (Busy=0,Free=1000,Min=1,Max=1000), WORKER: (Busy=2,Free=32765,Min=1,Max=32767), POOL: (Threads=5,QueuedItems=0,CompletedItems=1894355), v: 2.6.66.47313 (Please take a look at this article for some common client-side issues that can cause timeouts: https://stackexchange.github.io/StackExchange.Redis/Timeouts)

We are using Azure redis to store data. We are geeting the above error when trying to save or read data from redis database.

We are using Lazy<ConnectionMultiplexer> _connMux to connect to Redis.
and await Database.StringSetAsync(key, value, timeSpan).ConfigureAwait(false) API to store the data.;

Its very urgent to resolve this issue.

ShaktiSingh-MSFT 13,271 Reputation points Microsoft Employee

2022-11-23T10:37:03.727+00:00
Hi @Upadhya, Srinath ,

Welcome to Microsoft Q&A platform and thanks for using Azure services.

As I understand from the question, you are facing Timeout error in redis when trying to save or read data.

As a best practice make sure you are using the following pattern to connect to the StackExchange Redis client:

private static Lazy<ConnectionMultiplexer> lazyConnection = new Lazy<ConnectionMultiplexer>(() => { return ConnectionMultiplexer.Connect("cachename.redis.cache.windows.net,ssl=true,abortConnect=false,password=password"); }); public static ConnectionMultiplexer Connection { get { return lazyConnection.Value; } }

Additionally, please go through the pages investigating-timeout-exceptions-in-stackexchange-redis-for-azure-redis-cache and Timeouts to understand the probable reason of timeout in your case.

Hope this helps. Do let us know if further query.
Upadhya, Srinath 1 Reputation point

2022-11-23T10:48:37.077+00:00
Yes you are right we are creating connection like this

private static Lazy<ConnectionMultiplexer> _connMux;
private readonly TimeSpan _guidanceCacheExpiry;
private static IDatabase Database
{
get
{
return _connMux.Value.GetDatabase();
}
}

public RedisDatabase(RedisSettings redisSettings) { _connMux = Redis.GetConnection(redisSettings); }

And one more thing i want to ask you is - Is the time out issue is due to locks ?? or why time out issues occur in redis?
We are also planning to try these options as well.
options.AbortOnConnectFail = false;
options.ConnectTimeout = 10000;
options.AsyncTimeout = 10000;
options.ConnectRetry = 3;
options.DefaultDatabase = 0;

Is this fine??
Upadhya, Srinath 1 Reputation point

2022-11-24T04:25:02.26+00:00

Hello It's a high priority issue for us. Kindly help us in resolving the issue. Or provide any pointers
ShaktiSingh-MSFT 13,271 Reputation points Microsoft Employee

2022-11-24T04:32:33.91+00:00

Hi @Upadhya, Srinath ,

Please check if the issue is caused by <httpRuntime targetFramework="4.5" /> in web.config, which after changing to 4.8, might resolve the problem.

If this answers your query, do click Accept Answer and Up-Vote for the same. And, if you have any further query do let us know.
ShaktiSingh-MSFT 13,271 Reputation points Microsoft Employee

2022-11-25T04:48:41.593+00:00

Hi @Upadhya, Srinath ,

Following up to see if the above suggestion was helpful. If this answers your query, do click Accept Answer and Up-Vote for the same. And, if you have any further query do let us know.
Upadhya, Srinath 1 Reputation point

2022-11-25T04:50:56.367+00:00

We are using .net 6.0 and the issue still exists.
@ShaktiSingh-MSFT
ShaktiSingh-MSFT 13,271 Reputation points Microsoft Employee

2022-11-25T04:52:25.837+00:00

Hi @Upadhya, Srinath ,

This is strange and not expected. I would recommend you to please file a support ticket for deeper investigation and in case if you don't have a support plan, do let us know here so that we can check on other options to unblock you. Thanks
Upadhya, Srinath 1 Reputation point

2022-11-25T04:54:47.173+00:00

@ShaktiSingh-MSFT i don't have a support plan . Kindly help us in unblocking this issue.