Archives : July-2021

This requires that metadata lock instrumentation be enabled. UPDATE performance_schema.setup_instruments SET ENABLED = ‘YES’ WHERE NAME = ‘wait/lock/metadata/sql/mdl’; Once that’s in place, you can do this: SELECT   ml.object_schema,   ml.object_name,   p.id,   p.user,   p.state,   ml.lock_type,   ml.lock_duration,   ml.lock_status,   p.time,   LEFT(p.info, 100) FROM   performance_schema.metadata_locks ml   JOIN performance_schema.threads ..

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