shmilygkd opened a new issue, #3347:
URL: https://github.com/apache/amoro/issues/3347

   ### What happened?
   
   When using the External Catalog type, Mixed-Iceberg, Mixed-Hive, Iceberg 
table formats, and Kerberos authentication method, after creating a 
hive_catalog with Hive service tickets and keytab files, if you create an 
Iceberg table in that Catalog and a specific database and insert data, 
subsequent queries will prompt a client authentication failure. It will look 
like this:
   
   Caused by: java.io.IOException: 
org.apache.hadoop.security.AccessControlException: Client cannot authenticate 
via:[TOKEN, KERBEROS]
        at org.apache.hadoop.ipc.Client$Connection$1.run(Client.java:754)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1953)
        at 
org.apache.hadoop.ipc.Client$Connection.handleSaslConnectionFailure(Client.java:709)
        at 
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:812)
        at org.apache.hadoop.ipc.Client$Connection.access$3800(Client.java:364)
        at org.apache.hadoop.ipc.Client.getConnection(Client.java:1649)
        at org.apache.hadoop.ipc.Client.call(Client.java:1473)
        ... 44 more
   Caused by: org.apache.hadoop.security.AccessControlException: Client cannot 
authenticate via:[TOKEN, KERBEROS]
        at 
org.apache.hadoop.security.SaslRpcClient.selectSaslClient(SaslRpcClient.java:179)
        at 
org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:399)
        at 
org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:578)
        at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:364)
        at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:799)
        at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:795)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at 
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1953)
        at 
org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:795)
        ... 47 more
   
   After I restarted the Amoro service using ams.sh restart, querying the 
iceberg table data worked normally. However, if I continued to click the query 
button, it would throw the authentication exception mentioned above again. 
   
   Interestingly, every time I restarted the service, the first query would 
succeed, but the N query would fail; then after restarting the service again, 
the first query would succeed, and the N query would fail...
   
   
   ### Affects Versions
   
   0.7.1
   
   ### What table formats are you seeing the problem on?
   
   Iceberg
   
   ### What engines are you seeing the problem on?
   
   AMS
   
   ### How to reproduce
   
   _No response_
   
   ### Relevant log output
   
   _No response_
   
   ### Anything else
   
   _No response_
   
   ### Are you willing to submit a PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's Code of Conduct


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