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[SPARK-56235][CORE] Add reverse index in TaskSetManager to avoid O(N) scans in executorLost #55030

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Add reverse index in TaskSetManager to avoid O(N) scans in executorLost

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[SPARK-56235][CORE] Add reverse index in TaskSetManager to avoid O(N) scans in executorLost #55030

Add reverse index in TaskSetManager to avoid O(N) scans in executorLost
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