[SPARK-22721] BytesToBytesMap peak memory usage not accurate after reset() #19915
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cc @cloud-fan |
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LGTM |
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Test build #84572 has finished for PR 19915 at commit
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Merging to master. Thanks! |
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What changes were proposed in this pull request?
BytesToBytesMap doesn't update peak memory usage before shrinking back to initial capacity in reset(), so after a disk spill one never knows what was the size of hash table was before spilling.
How was this patch tested?
Checked manually.