tuteng opened a new issue #12587:
URL: https://github.com/apache/pulsar/issues/12587


   **Describe the bug**
   
   Configure kerberos according to this documentation 
https://pulsar.apache.org/docs/en/security-kerberos/, throwing exceptions
   
   ```
   Exception: javax.naming.AuthenticationException: SASL/JAAS 
errorjavax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: Server not found 
in Kerberos database (7) - LOOKING_UP_SERVER)]
   org.apache.pulsar.client.admin.PulsarAdminException: 
java.util.concurrent.ExecutionException: 
org.apache.pulsar.client.admin.PulsarAdminException$GettingAuthenticationDataException:
 javax.naming.AuthenticationException: SASL/JAAS 
errorjavax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: Server not found 
in Kerberos database (7) - LOOKING_UP_SERVER)]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.getApiException(BaseResource.java:247)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.TenantsImpl$1.failed(TenantsImpl.java:72)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.asyncGetRequest(BaseResource.java:167)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.TenantsImpl.getTenantsAsync(TenantsImpl.java:63)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.TenantsImpl.getTenants(TenantsImpl.java:49)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.PulsarStandalone.createNameSpace(PulsarStandalone.java:361) 
[org.apache.pulsar-pulsar-broker-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.PulsarStandalone.start(PulsarStandalone.java:349) 
[org.apache.pulsar-pulsar-broker-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.PulsarStandaloneStarter.main(PulsarStandaloneStarter.java:121)
 [org.apache.pulsar-pulsar-broker-2.8.1.jar:2.8.1]
   Caused by: java.util.concurrent.ExecutionException: 
org.apache.pulsar.client.admin.PulsarAdminException$GettingAuthenticationDataException:
 javax.naming.AuthenticationException: SASL/JAAS 
errorjavax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: Server not found 
in Kerberos database (7) - LOOKING_UP_SERVER)]
           at 
java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357) 
~[?:1.8.0_292]
           at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908) 
~[?:1.8.0_292]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.request(BaseResource.java:68)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.asyncGetRequest(BaseResource.java:165)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           ... 5 more
   Caused by: 
org.apache.pulsar.client.admin.PulsarAdminException$GettingAuthenticationDataException:
 javax.naming.AuthenticationException: SASL/JAAS 
errorjavax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: Server not found 
in Kerberos database (7) - LOOKING_UP_SERVER)]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.requestAsync(BaseResource.java:111)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.request(BaseResource.java:68)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.asyncGetRequest(BaseResource.java:165)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           ... 5 more
   Caused by: javax.naming.AuthenticationException: SASL/JAAS 
errorjavax.security.sasl.SaslException: GSS initiate failed [Caused by 
GSSException: No valid credentials provided (Mechanism level: Server not found 
in Kerberos database (7) - LOOKING_UP_SERVER)]
           at 
org.apache.pulsar.client.impl.auth.PulsarSaslClient.evaluateChallenge(PulsarSaslClient.java:116)
 ~[org.apache.pulsar-pulsar-client-auth-sasl-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.impl.auth.SaslAuthenticationDataProvider.authenticate(SaslAuthenticationDataProvider.java:55)
 ~[org.apache.pulsar-pulsar-client-auth-sasl-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.impl.auth.AuthenticationSasl.newRequestHeader(AuthenticationSasl.java:264)
 ~[org.apache.pulsar-pulsar-client-auth-sasl-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.impl.auth.AuthenticationSasl.newRequestBuilder(AuthenticationSasl.java:198)
 ~[org.apache.pulsar-pulsar-client-auth-sasl-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.impl.auth.AuthenticationSasl.authenticationStage(AuthenticationSasl.java:307)
 ~[org.apache.pulsar-pulsar-client-auth-sasl-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.requestAsync(BaseResource.java:82)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.request(BaseResource.java:68)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           at 
org.apache.pulsar.client.admin.internal.BaseResource.asyncGetRequest(BaseResource.java:165)
 ~[org.apache.pulsar-pulsar-client-admin-original-2.8.1.jar:2.8.1]
           ... 5 more
   ```
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. Go to '...'
   2. Click on '....'
   3. Scroll down to '....'
   4. See error
   
   **Expected behavior**
   A clear and concise description of what you expected to happen.
   
   **Screenshots**
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   **Desktop (please complete the following information):**
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   **Additional context**
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