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Optimistic Concurrency Control and Time-stamp Ordering






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2. Optimistic Concurrency Control. The problems of 2PLThe overheads for locking and maintaining the lock tableDeadlock and distributed deadlock problemsLong lock holding time implies long blocking time (chain of blocking)Thrashing problem due to high data contention (Strict 2PL)Optimistic Concu
Optimistic Concurrency Control and Time-stamp Ordering

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