aokolnychyi commented on a change in pull request #2591:
URL: https://github.com/apache/iceberg/pull/2591#discussion_r649433302



##########
File path: 
spark3/src/main/java/org/apache/iceberg/spark/source/SparkFilesScan.java
##########
@@ -62,6 +63,9 @@
     long tableSplitSize = PropertyUtil.propertyAsLong(props, SPLIT_SIZE, 
SPLIT_SIZE_DEFAULT);
     this.splitSize = Spark3Util.propertyAsLong(options, 
SparkReadOptions.SPLIT_SIZE, tableSplitSize);
 
+    Preconditions.checkArgument(splitSize > 0,

Review comment:
       I think we better move this validation to `TableScanUtil` and also 
validate other args such as `lookback`.




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