maedhroz commented on PR #2460:
URL: https://github.com/apache/cassandra/pull/2460#issuecomment-1622413371

   > It seems CI is hitting some new test failures around NodeRestartTest and 
SnapshotTest, I haven't looked into them yet.
   
   @pkolaczk @adelapena I think the failures are due to us calling 
`validatePerIndexComponents()` and `validatePerSSTableComponents()` in 
`IndexDescriptor` w/ `IndexValidation.NONE` rather than not at all. The counter 
injections in `SAITester` depend on this. You could fix by changing them to...
   
   ```
   protected static final Injections.Counter perSSTableValidationCounter = 
Injections.newCounter("PerSSTableValidationCounter")
                                                                                
     .add(newInvokePoint().onClass(OnDiskFormat.class)
                                                                                
                          .onMethod("validatePerSSTableIndexComponents"))
                                                                                
     .build();
   
   protected static final Injections.Counter perColumnValidationCounter = 
Injections.newCounter("PerColumnValidationCounter")
                                                                                
    .add(newInvokePoint().onClass(OnDiskFormat.class)
                                                                                
                         .onMethod("validatePerColumnIndexComponents"))
                                                                                
    .build();
   ```
   
   After that, `shouldTakeAndRestoreSnapshots()` in `SnapshotTest` will still 
fail, and that's because the test was always incorrect. Changing line 107 to 
`assertValidationCount(4, 2);` should properly verify that full rebuild 
checksums the SSTable-level index components.
   
   Alright, on to the rest of the review. Hopefully that helps :)


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