errose28 commented on a change in pull request #2257:
URL: https://github.com/apache/ozone/pull/2257#discussion_r636945091



##########
File path: 
hadoop-hdds/server-scm/src/main/java/org/apache/hadoop/hdds/scm/server/StorageContainerManager.java
##########
@@ -962,6 +963,11 @@ public static boolean scmInit(OzoneConfiguration conf,
         return false;
       }
     } else {
+      // If SCM HA was not being used before pre-finalize, and is being used
+      // when the cluster is pre-finalized for the SCM HA feature, init
+      // should fail.
+      ScmHAUnfinalizedStateValidationAction.checkScmHA(conf, scmStorageConfig);
+
       clusterId = scmStorageConfig.getClusterID();
       final boolean isSCMHAEnabled = scmStorageConfig.isSCMHAEnabled();
       if (SCMHAUtils.isSCMHAEnabled(conf) && !isSCMHAEnabled) {

Review comment:
       Good catch, thanks @guihecheng . The problem here is that the upgrade 
framework will only run upgrade actions in pre-finalized cluster, but but 
because I kind of had to side-step the upgrade framework's action runner here 
to execute this statically, it is actually being run in finalized clusters too. 
This can be seen in the latest integration test failure: 
https://github.com/apache/ozone/pull/2257/checks?check_run_id=2631515596. I 
will add a pre-finalization check to this call, which will differentiate it 
from the if-else check here.




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