INNODB_SYS_SEMAPHORE_WAITS

Overview

In 10.6 ES:

Not present

In 10.5 ES, 10.4 ES:

InnoDB SYS_SEMAPHORE_WAITS

See also: Information Schema in 10.6 ES, in 10.5 ES, and in 10.4 ES

DETAILS

SCHEMA

CREATE TEMPORARY TABLE `INNODB_SYS_SEMAPHORE_WAITS` (
  `THREAD_ID` bigint(21) unsigned NOT NULL DEFAULT 0,
  `OBJECT_NAME` varchar(4000) DEFAULT NULL,
  `FILE` varchar(4000) DEFAULT NULL,
  `LINE` int(11) unsigned NOT NULL DEFAULT 0,
  `WAIT_TIME` bigint(21) unsigned NOT NULL DEFAULT 0,
  `WAIT_OBJECT` bigint(21) unsigned NOT NULL DEFAULT 0,
  `WAIT_TYPE` varchar(16) DEFAULT NULL,
  `HOLDER_THREAD_ID` bigint(21) unsigned NOT NULL DEFAULT 0,
  `HOLDER_FILE` varchar(4000) DEFAULT NULL,
  `HOLDER_LINE` int(11) unsigned NOT NULL DEFAULT 0,
  `CREATED_FILE` varchar(4000) DEFAULT NULL,
  `CREATED_LINE` int(11) unsigned NOT NULL DEFAULT 0,
  `WRITER_THREAD` bigint(21) unsigned NOT NULL DEFAULT 0,
  `RESERVATION_MODE` varchar(16) DEFAULT NULL,
  `READERS` int(11) unsigned NOT NULL DEFAULT 0,
  `WAITERS_FLAG` bigint(21) unsigned NOT NULL DEFAULT 0,
  `LOCK_WORD` bigint(21) unsigned NOT NULL DEFAULT 0,
  `LAST_WRITER_FILE` varchar(4000) DEFAULT NULL,
  `LAST_WRITER_LINE` int(11) unsigned NOT NULL DEFAULT 0,
  `OS_WAIT_COUNT` int(11) unsigned NOT NULL DEFAULT 0
)

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Removed 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