Threads_cached

USAGE

DETAILS

The Threads_cached status variable shows the number of threads cached in the thread cache. For information about how to set the maximum size, see "thread_cache_size".

Interaction with Thread Pool

When thread_handling=pool-of-threads is set, the Threads_cached status variable's value is always 0.

SYNONYMS

SCHEMA

PARAMETERS

SKYSQL

PRIVILEGES

EXAMPLES

Show Value with SHOW STATUS

SHOW GLOBAL STATUS statement can show the global value:

SHOW GLOBAL STATUS
   LIKE 'Threads_cached';

Since this status variable is only global scope, SHOW STATUS and SHOW SESSION STATUS also show the global value.

Information Schema

The information_schema.GLOBAL_STATUS table can be queried to obtain the global value:

SELECT *
FROM information_schema.GLOBAL_STATUS
WHERE VARIABLE_NAME LIKE 'Threads_cached';

This status variable is only global scope, so the information_schema.SESSION_STATUS table can also be queried to obtain the global value:

SELECT *
FROM information_schema.SESSION_STATUS
WHERE VARIABLE_NAME LIKE 'Threads_cached';

ERROR HANDLING

FEATURE INTERACTION

RESPONSES

DIAGNOSIS

ISO 9075:2016

CHANGE HISTORY

Release Series

History

11.4 Enterprise

  • Not present.

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

Release Series

History

11.4 Enterprise

  • Not present.

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

EXTERNAL REFERENCES