As of MySQL 8.0.14, the thread pool
INFORMATION_SCHEMA
tables are also available
as Performance Schema tables. (See
Section 26.12.15, “Performance Schema Thread Pool Tables”.) The
INFORMATION_SCHEMA
tables are deprecated and
will be removed in a future MySQL version. Applications should
transition away from the old tables to the new tables. For
example, if an application uses this query:
SELECT * FROM INFORMATION_SCHEMA.TP_THREAD_STATE;
The application should use this query instead:
SELECT * FROM performance_schema.tp_thread_state;
The TP_THREAD_STATE
table has one row per
thread created by the thread pool to handle connections.
For descriptions of the columns in the
INFORMATION_SCHEMA
TP_THREAD_STATE
table, see
Section 26.12.15.3, “The tp_thread_state Table”. The Performance Schema
tp_thread_state
table has equivalent
columns.