SHOW PROCESSLIST

Syntax

SHOW [FULL] PROCESSLIST

Description

SHOW PROCESSLIST shows you which threads are running. You can also get this information from the information_schema.PROCESSLIST table or the mysqladmin processlist command. If you have the PROCESS privilege, you can see all threads. Otherwise, you can see only your own threads (that is, threads associated with the MariaDB account that you are using). If you do not use the FULL keyword, only the first 100 characters of each statement are shown in the Info field.

The columns shown in SHOW PROCESSLIST are:

See TIME_MS column in information_schema.PROCESSLIST for differences in the TIME column between MariaDB and MySQL.

The information_schema.PROCESSLIST table contains the following additional columns:

Note that the PROGRESS field from the information schema, and the PROGRESS field from SHOW PROCESSLIST display different results. SHOW PROCESSLIST shows the total progress, while the information schema shows the progress for the current stage only.

Threads can be killed using their thread_id, or, since MariaDB 10.0.5, their query_id, with the KILL statement.

Since queries on this table are locking, if the performance_schema is enabled, you may want to query the THREADS table instead.

Examples

SHOW PROCESSLIST;
+----+-----------------+-----------+------+---------+------+------------------------+------------------+----------+
| Id | User            | Host      | db   | Command | Time | State                  | Info             | Progress |
+----+-----------------+-----------+------+---------+------+------------------------+------------------+----------+
|  2 | event_scheduler | localhost | NULL | Daemon  | 2693 | Waiting on empty queue | NULL             |    0.000 |
|  4 | root            | localhost | NULL | Query   |    0 | Table lock             | SHOW PROCESSLIST |    0.000 |
+----+-----------------+-----------+------+---------+------+------------------------+------------------+----------+