No such configuration property: "sasl.kerberos.keytab"

Hi, I’m new here. I’ve been trying to apply the MIT Kerberos authentication with the use of a keytab.

Below is my code (in .NET).

public static void Main() { string topicName = “test-topic”; var producerConfig = new ProducerConfig { BootstrapServers = "bootstrapServer ", SecurityProtocol = SecurityProtocolType.Sasl_Ssl, SaslMechanism = SaslMechanismType.Gssapi, SaslKerberosServiceName = “ksfka”, SaslKerberosPrincipal = “[e-mail]”, SaslKerberosKeytab = @“D:\kafka.keytab”, SaslKerberosKinitCmd = @“kinit -k -t D:\kafka.keytab [e-mail]” };

using (var producer = new Producer<Null, string>(producerConfig)) { Console.WriteLine($“{producer.Name} producing on {topicName}. q to exit.”); string text=“123”; while ((text = Console.ReadLine()) != “q”) { var deliveryReport = producer.ProduceAsync(topicName, new Message<Null, string> { Value = text }); deliveryReport.ContinueWith(task => { Console.WriteLine($“Partition: {task.Result.Partition}, Offset: {task.Result.Offset}, Message: {text}”); }); } } }

The following situation has occurred.

System.InvalidOperationException HResult=0x80131509 Message=No such configuration property: “sasl.kerberos.keytab” Source=Confluent.Kafka StackTrace: Confluent.Kafka.Impl.SafeConfigHandle.Set(String name, String value) Confluent.Kafka.Producer.<>c__DisplayClass33_0.<.ctor>b__6(KeyValuePair2 kvp) System.Collections.Generic.List1.ForEach(Action1 action) Confluent.Kafka.Producer..ctor(IEnumerable1 config) Confluent.Kafka.Producer2..ctor(IEnumerable1 config, SerializerGenerator1 keySerializerGenerator, SerializerGenerator1 valueSerializerGenerator) Confluent.Kafka.Producer2..ctor(IEnumerable1 config, Serializer1 keySerializer, Serializer1 valueSerializer) DotNetExample.Main() in D:\DoNetKafka\Program.cs:line 21

How can I solve it?

Checklist

Please provide the following information:

• Confluent.Kafka nuget version:1.0.0-beta
• Apache Kafka version: cloudera kafka 3.1.0
• Client configuration:
• Operating system:windows 10 build 1803
• Provide logs (with “debug” : “…” as necessary in configuration)
• Provide broker log excerpts
• Critical issue

[mathsigit]

Hi @mhowlett , I have the same issue ,and could you please describe more detail about how to use credentials of the logged in user on Windows? Thanks a lot.

[mhowlett]

This config property is apparently only supported on the linux/osx builds of librdkafka. On windows, I believe we only support credentials of the logged in user.