danny0405 commented on code in PR #19342:
URL: https://github.com/apache/hudi/pull/19342#discussion_r3627898967


##########
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/keygen/CustomAvroKeyGenerator.java:
##########
@@ -161,7 +162,7 @@ public String getPartitionPath(GenericRecord record) {
         partitionPath.append(DEFAULT_PARTITION_PATH_SEPARATOR);
       }
     }
-    return partitionPath.toString();
+    return 
PartitionPathEncodeUtils.validateNoPathTraversal(partitionPath.toString());

Review Comment:
   the per-row validation is perf sensitive, can we fix the directory-traversal 
only when `hoodie.datasource.write.partitionpath.urlencode=true`? instead of 
throwing, can we automatically encode it as a valid partition path.



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