After upgrading to StackExchange.Redis v3 (from v2) we have started to see errors during initial connection:
StackExchange.Redis.RedisConnectionException: Sentinel: The ConnectionMultiplexer is not a Sentinel connection. Detected as: Standalone at StackExchange.Redis.ConnectionMultiplexer.GetSentinelMasterConnection(ConfigurationOptions config, TextWriter log) in /_/src/StackExchange.Redis/ConnectionMultiplexer.Sentinel.cs:line 170
This seems to happen because v3 uses Resp3 as default protocol and the handshake with Sentinel fails with this.
We have tried forcing Resp2 in connection options and then it works again.
After upgrading to StackExchange.Redis v3 (from v2) we have started to see errors during initial connection:
StackExchange.Redis.RedisConnectionException: Sentinel: The ConnectionMultiplexer is not a Sentinel connection. Detected as: Standalone at StackExchange.Redis.ConnectionMultiplexer.GetSentinelMasterConnection(ConfigurationOptions config, TextWriter log) in /_/src/StackExchange.Redis/ConnectionMultiplexer.Sentinel.cs:line 170
This seems to happen because v3 uses Resp3 as default protocol and the handshake with Sentinel fails with this.
We have tried forcing Resp2 in connection options and then it works again.