stevenzwu commented on code in PR #10393:
URL: https://github.com/apache/iceberg/pull/10393#discussion_r1619230274


##########
flink/v1.19/flink/src/test/java/org/apache/iceberg/flink/source/TestIcebergSourceFailoverWithWatermarkExtractor.java:
##########
@@ -48,10 +52,17 @@ public class 
TestIcebergSourceFailoverWithWatermarkExtractor extends TestIceberg
 
   @Override
   protected IcebergSource.Builder<RowData> sourceBuilder() {
-    return IcebergSource.<RowData>builder()
+    Configuration config = new Configuration();
+    
config.setInteger(FlinkConfigOptions.SOURCE_READER_FETCH_BATCH_RECORD_COUNT, 
128);

Review Comment:
   I see. this config is probably not required for `TestIcebergSourceFailover`, 
because only small number of records are generated per data file. This config 
is probably copied over unnecessarily from some specific tests like 
`TestArrayPoolDataIteratorBatcherRowData`.
   
   either way is fine with me (copying it here or not).



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