vinothchandar commented on a change in pull request #3306:
URL: https://github.com/apache/hudi/pull/3306#discussion_r675266638



##########
File path: 
hudi-client/hudi-spark-client/src/main/java/org/apache/hudi/table/action/commit/BaseSparkCommitActionExecutor.java
##########
@@ -94,6 +101,18 @@ public BaseSparkCommitActionExecutor(HoodieEngineContext 
context,
                                        WriteOperationType operationType,
                                        Option extraMetadata) {
     super(context, config, table, instantTime, operationType, extraMetadata);
+    initKeyGenIfNeeded();
+  }
+
+  private void initKeyGenIfNeeded() {
+    this.populateMetaFields = config.populateMetaFields();
+    if (!populateMetaFields) {
+      try {
+        keyGeneratorOpt = Option.of((BaseKeyGenerator) 
HoodieSparkKeyGeneratorFactory.createKeyGenerator(new 
TypedProperties(config.getProps())));
+      } catch (IOException e) {
+        throw new HoodieIOException("Only BaseKeyGenerators are supported when 
meta columns are disabled ", e);

Review comment:
       >within HoodieSparkKeyGeneratorFactory.createKeyGenerator.
   
   yes. within. You can still cast outside right?




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