duongkame commented on code in PR #4597:
URL: https://github.com/apache/ozone/pull/4597#discussion_r1190675513
##########
hadoop-ozone/integration-test/src/test/java/org/apache/hadoop/ozone/TestSecretKeysApi.java:
##########
@@ -155,11 +156,12 @@ private void setSecureConfig() throws IOException {
String realm = miniKdc.getRealm();
String hostAndRealm = host + "@" + realm;
- conf.set(HDDS_SCM_KERBEROS_PRINCIPAL_KEY, "scm/" + hostAndRealm);
+ ozonePrincipal = "scm/" + hostAndRealm;
+ conf.set(HDDS_SCM_KERBEROS_PRINCIPAL_KEY, ozonePrincipal);
conf.set(HDDS_SCM_HTTP_KERBEROS_PRINCIPAL_KEY, "HTTP_SCM/" + hostAndRealm);
- conf.set(OZONE_OM_KERBEROS_PRINCIPAL_KEY, "scm/" + hostAndRealm);
+ conf.set(OZONE_OM_KERBEROS_PRINCIPAL_KEY, ozonePrincipal);
Review Comment:
Before, when I tried using separate principals for OM, SCM & Datanodes,
always get errors at connection authentication, e.g. when OM connects to SCM:
```
org.apache.hadoop.ipc.RemoteException(javax.security.sasl.SaslException): GSS
initiate failed
at
org.apache.hadoop.security.SaslRpcClient.saslConnect(SaslRpcClient.java:376)
at
org.apache.hadoop.ipc.Client$Connection.setupSaslConnection(Client.java:577)
at org.apache.hadoop.ipc.Client$Connection.access$2100(Client.java:363)
at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:800)
at org.apache.hadoop.ipc.Client$Connection$2.run(Client.java:796)
at java.security.AccessController.doPrivileged(Native Method)
```
I spent some hours today redebugging this issue but didn't get far. It looks
like a limitation of `MiniKDC`. All the integration tests in HDFS use the same
principal for namenode & datanode.
https://github.com/apache/hadoop/blob/fe61d8f073b07be250bcbbb07fb44baed2acf6c2/hadoop-tools/hadoop-aws/src/test/java/org/apache/hadoop/fs/s3a/auth/delegation/MiniKerberizedHadoopCluster.java#L252C1-L259
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