MySQL Tuning, Indexing & Concurrency
5-8 Years (Senior)
Hard
Production Scenario
How do you identify and resolve Deadlocks using `SHOW ENGINE INNODB STATUS`?
Real-World Scenario / Incident Description
Production logs report MySQL error 1213. You need to extract the exact queries, locks, and transactions involved.
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Updated 1 month ago
Analyzing LATEST DETECTED DEADLOCK
Run:
SHOW ENGINE INNODB STATUS\G
Look for:
(1) TRANSACTIONvs(2) TRANSACTIONLOCK WAITstatementsRECORD LOCKS space id ... lock_mode X- Identify which transaction was chosen as the deadlock victim and rolled back based on the lowest number of modified rows.
Related Concepts:
#Deadlocks
#InnoDB Status
#Debugging
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