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- Run `SHOW ENGINE INNODB STATUS;` to get the latest information about InnoDB engine status, which includes the last deadlock.
- Look for the section LATEST DETECTED DEADLOCK. This section shows information about the transactions involved in the last deadlock, including the SQL statements.
- Execute `SELECT @@GLOBAL.txisolation, @@txisolation;` to check the current transaction isolation levels. Sometimes adjusting the isolation level can reduce the likelihood of deadlocks.
- Use `SHOW OPEN TABLES WHERE In_use > 0;` to find tables that are currently locked.
- Run `SHOW PROCESSLIST;` to see which threads are running and possibly involved in lock contention.
- If you identify a query that is causing a deadlock and it is safe to terminate, use `KILL [thread id];` where `[thread id]` is the ID of the process you want to stop.
- After investigating, retry your operation. Deadlocks are transient errors, and retrying the operation is a common approach.
(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)
Get Instant Solutions for Kubernetes, Databases, Docker and more
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(Perfect for DevOps & SREs)
(Perfect for DevOps & SREs)