hantangwangd commented on code in PR #12201:
URL: https://github.com/apache/iceberg/pull/12201#discussion_r1947556326
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core/src/main/java/org/apache/iceberg/util/TableScanUtil.java:
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@@ -236,8 +236,12 @@ public static long adjustSplitSize(long scanSize, int
parallelism, long splitSiz
// use the configured split size if it produces at least one split per slot
// otherwise, adjust the split size to target parallelism with a
reasonable minimum
// increasing the split size may cause expensive spills and is not done
automatically
+ long adjustedSplitSize = scanSize / parallelism;
+ if (splitSize <= 0) {
+ return adjustedSplitSize;
+ }
long splitCount = LongMath.divide(scanSize, splitSize,
RoundingMode.CEILING);
- long adjustedSplitSize = Math.max(scanSize / parallelism,
Math.min(MIN_SPLIT_SIZE, splitSize));
+ adjustedSplitSize = Math.max(adjustedSplitSize, Math.min(MIN_SPLIT_SIZE,
splitSize));
Review Comment:
Thanks for your review. I have refactored to make it more clear, please take
a look when available, thanks.
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