innodb显示阻塞和等待以及等待时间
innodb显示阻塞和等待以及等待时间
藏劍丶 发表于1年前
innodb显示阻塞和等待以及等待时间
  • 发表于 1年前
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SELECT r.trx_id AS waiting_trx_id, r.trx_mysql_thread_id AS waiting_thread,
    TIMESTAMPDIFF(SECOND, r.trx_wait_started, CURRENT_TIMESTAMP) AS wait_time,
    r.trx_query AS waiting_query,
    l.lock_table AS waiting_table_lock,
    b.trx_id AS blocking_trx_id, b.trx_mysql_thread_id AS blocking_thread,
    SUBSTRING(p.host, 1,INSTR(p.host,':') -1 ) AS blocking_host,
    SUBSTRING(p.host, INSTR(p.host,':') +1 ) AS blocking_port,
    IF(p.command = "Sleep", p.time, 0) AS idle_in_trx,
    b.trx_query AS blocking_query
FROM INFORMATION_SCHEMA.INNODB_LOCK_WAITS AS w
INNER JOIN INFORMATION_SCHEMA.INNODB_TRX AS b ON b.trx_id = w.blocking_trx_id
INNER JOIN INFORMATION_SCHEMA.INNODB_TRX AS r ON r.trx_id = w.requesting_trx_id 
INNER JOIN INFORMATION_SCHEMA.INNODB_LOCKS AS l ON w.requested_lock_id=l.lock_id
LEFT JOIN INFORMATION_SCHEMA.PROCESSLIST AS p ON p.id = b.trx_mysql_thread_id
ORDER BY wait_time DESC \G

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