MySQL returned an empty result set (i.e. zero rows). (Query took 0.0001 seconds.)
SELECT * FROM `rwlock_instances`
| NAME
Instrument name associated with the read write loc… | OBJECT_INSTANCE_BEGIN
Address in memory of the instrumented lock | WRITE_LOCKED_BY_THREAD_ID
THREAD_ID of the locking thread if locked in write… | READ_LOCKED_BY_COUNT
Count of current read locks held |
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