Sentinel connection error when using the highIntegrity = true configuration #2992

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1. thangpv212

   changed the title [-]Lỗi kết nối Sentinel nếu sử dụng cấu hình highIntegrity = true[/-] [+]Sentinel connection error when using the highIntegrity = true configuration[/+] on Jan 12, 2026
2. mgravell commented on Jan 13, 2026

   

   mgravell

   on Jan 13, 2026

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   I think this is most-likely the same thing as #2980, with different causality; looking
3. thangpv212 commented on Jan 13, 2026

   

   thangpv212

   on Jan 13, 2026

   Last edited by thangpv212

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   I think this is most-likely the same thing as #2980, with different causality; looking

   Hi @mgravell
   I have debugged and identified 2 issues here:

   1. When configuring highIntegrity=true, messages are validated using HighIntegrity, including messages with command=SENTINEL. These command=SENTINEL messages always fail at this validation step.
      I tried an alternative connection method so that command=SENTINEL messages would not be validated, and the result was successful.

   //...
   opts.HighIntegrity = false;
   var sentinelConnection = await ConnectionMultiplexer.SentinelConnectAsync(opts, logWriter);
   opts.HighIntegrity = true;
   var multiplexer = sentinelConnection.GetSentinelMasterConnection(opts, logWriter);
   

   instead of

   //...
   opts.HighIntegrity = true;
   var multiplexer = await ConnectionMultiplexer.ConnectAsync(opts, logWriter);
   

   I really want to use highIntegrity=true in combination with a Sentinel-type connection. However, I believe this is not a standard connection approach, so I am not applying it to my project.

   2. Regarding the error message:
      StackExchange.Redis.RedisConnectionException: Sentinel: The ConnectionMultiplexer is not a Sentinel connection. Detected as: Standalone
      I think this error message is not very helpful. It should provide a more accurate description of the actual error.

   I hope this information will be useful. Thank you!