Timeouts while connecting to Azure EH

[gelihu]

I am using dotnet-client.

Client version: 1.7.0
Broker version: 2.8.0

I am trying to create an Idempotent producer, I am getting following in the debug log:

2021-08-13T06:44:16.421469096Z Debug->[thrd:sasl_ssl://broker-namespace.svc:9093/boots]: sasl_ssl://broker-namespace.svc:9093/0: Protocol parse failure for ApiVersion v3(flex) at 3/10 (rd_kafka_handle_ApiVersion:2126) (incorrect broker.version.fallback?)
2021-08-13T06:44:16.421483996Z Debug->[thrd:sasl_ssl://broker-namespace.svc:9093/boots]: sasl_ssl://broker-namespace.svc:9093/0: ApiArrayCnt -1 out of range
2021-08-13T06:44:16.421488696Z Debug->[thrd:sasl_ssl://broker-namespace.svc:9093/boots]: sasl_ssl://broker-namespace.svc:9093/0: ApiVersionRequest v3 failed due to UNSUPPORTED_VERSION: retrying with v0

InitTransactions call never succeeds after this. It times out.

However, If I try to use a normal producer, it works fine.

Are there any additional configs I need to set? Please advice.

My config:

ProducerConfig producerConfig = new ProducerConfig
{
    ClientId = "app",
    BootstrapServers = "broker-namespace.svc:9093",
    SaslMechanism = SaslMechanism.Plain,
    SaslUsername = "user",
    SaslPassword = "pwd",
    SecurityProtocol = SecurityProtocol.SaslSsl,
    TransactionalId = "app-trxn",
    Debug = "broker,protocol,security"                    
};

full debug log

EDIT: This appears to be an Azure related issue.

[gelihu]

This appears to be an Azure related issue.