lock escalation
Replace many fine-grained locks with a coarser lock in engines that support it.
Use this when A large SQL Server update unexpectedly blocks unrelated rows in the same table.
without the term
“A large SQL Server update blocks unrelated rows. Check whether many small locks became a table lock.”
with the term · How do you ask a model for lock escalation?
Confirm SQL Server lock escalation with events. Reduce the lock footprint and verify blocking and transaction correctness.
What is lock escalation?
Lock escalation changes many row or page locks into a coarser lock to reduce lock-management overhead. SQL Server may escalate to a table lock based on lock counts and memory pressure; this is engine-specific.
Why does lock escalation matter when vibe coding?
An agent can attribute any table lock to escalation or disable it without considering lock memory.
How do you do lock escalation?
Capture the lock-escalation event and blocking chain. Reduce the scan or batch size where appropriate, then verify lock footprint and transaction semantics.
What goes wrong with lock escalation?
A table lock can have other causes. Batching changes atomicity; do not split an all-or-nothing operation casually.
Sources for this entry
- Microsoft: Lock escalation
SQL Server can escalate fine-grained locks to a table lock based on thresholds and memory pressure.
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