SignalR with Redis Backplane Memory leak when connection to Redis is unavailable.

[Br4v3St4rr]

Issues related to the Asp.NET Core version of SignalR should be filed in the AspNetCore repo:

When the server running SignalR with a Redis backplane cannot connect to a portion of the Redis sentinel cluster SignalR repeatedly tries to connect causing a memory leak.

StackExchangeRedis - 2.6.104
Microsoft.AspNet.SignalR.StackExchangeRedis - 2.4.3

The service retries every 2 seconds in deffinatly, the leak seems to be somewhere in the ConnectToRedisAsync method.

Expected behavior

No memory leak...

Actual behavior

Leaks like a sieve..

Steps to reproduce

Break the connection between Redis and the webserver and watch the memory consumption climb....