cloud-fan commented on a change in pull request #26828: [SPARK-30198][Core]
BytesToBytesMap does not grow internal long array as expected
URL: https://github.com/apache/spark/pull/26828#discussion_r356754628
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File path: core/src/main/java/org/apache/spark/unsafe/map/BytesToBytesMap.java
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@@ -741,7 +741,9 @@ public boolean append(Object kbase, long koff, int klen,
Object vbase, long voff
longArray.set(pos * 2 + 1, keyHashcode);
isDefined = true;
- if (numKeys >= growthThreshold && longArray.size() < MAX_CAPACITY) {
Review comment:
let me confirm the problem: so `append` mistakenly think there is enough
space, and doesn't grow the array. This makes the client of `BytesToBytesMap`
keeping calling `lookup` and hand. Is my understanding correct?
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