[转帖]基于MySQL8.0存储过程实现myawr平台的top sql功能

概述

众所周知，MySQL数据库中的performance_schema的事件统计表中的统计数据计算的是累计值，如果想要计算某段时间的TOP SQL是不行的，这里考虑用函数定期取值存进中间表定期将累计值的结果存入A表，按sql_id分组查A表，筛选最后执行时间，然后直接最大值减最小值来实现需求了。
以下针对MySQL数据库8.0版本。

1、创建中间表

-- 报错记录error_log

CREATE TABLE sys.error_log (

  ERROR varchar(128) NOT NULL,

  AFFECT_ROWS bigint(20) unsigned NOT NULL,

  del_time datetime NOT NULL

) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='报错记录表';

-- 中间表ews_event(取PERFORMANCE_SCHEMA.events_waits_summary_global_by_event_name:按照账户、主机、用户或线程统计的等待事件统计表)


CREATE TABLE sys.ews_event(


EVENT_NAME varchar(128) NOT NULL,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_TIMER_WAIT bigint(20) unsigned NOT NULL,


MIN_TIMER_WAIT bigint(20) unsigned NOT NULL,


AVG_TIMER_WAIT bigint(20) unsigned NOT NULL,


MAX_TIMER_WAIT bigint(20) unsigned NOT NULL,


insert_date datetime NOT NULL


) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='按照账户、主机、用户或线程统计的等待事件统计表';

-- 中间表ews_sql(取performance_schema.events_statements_summary_by_digest:按照事件的语句进行聚合,抓取每条标准化语句有关的延迟、错误和查询量信息)


CREATE TABLE sys.ews_sql (


SCHEMA_NAME varchar(64) DEFAULT NULL,


DIGEST varchar(32) DEFAULT NULL,


DIGEST_TEXT longtext,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_TIMER_WAIT bigint(20) unsigned NOT NULL,


MIN_TIMER_WAIT bigint(20) unsigned NOT NULL,


AVG_TIMER_WAIT bigint(20) unsigned NOT NULL,


MAX_TIMER_WAIT bigint(20) unsigned NOT NULL,


SUM_LOCK_TIME bigint(20) unsigned NOT NULL,


SUM_ERRORS bigint(20) unsigned NOT NULL,


SUM_WARNINGS bigint(20) unsigned NOT NULL,


SUM_ROWS_AFFECTED bigint(20) unsigned NOT NULL,


SUM_ROWS_SENT bigint(20) unsigned NOT NULL,


SUM_ROWS_EXAMINED bigint(20) unsigned NOT NULL,


SUM_CREATED_TMP_DISK_TABLES bigint(20) unsigned NOT NULL,


SUM_CREATED_TMP_TABLES bigint(20) unsigned NOT NULL,


SUM_SELECT_FULL_JOIN bigint(20) unsigned NOT NULL,


SUM_SELECT_FULL_RANGE_JOIN bigint(20) unsigned NOT NULL,


SUM_SELECT_RANGE bigint(20) unsigned NOT NULL,


SUM_SELECT_RANGE_CHECK bigint(20) unsigned NOT NULL,


SUM_SELECT_SCAN bigint(20) unsigned NOT NULL,


SUM_SORT_MERGE_PASSES bigint(20) unsigned NOT NULL,


SUM_SORT_RANGE bigint(20) unsigned NOT NULL,


SUM_SORT_ROWS bigint(20) unsigned NOT NULL,


SUM_SORT_SCAN bigint(20) unsigned NOT NULL,


SUM_NO_INDEX_USED bigint(20) unsigned NOT NULL,


SUM_NO_GOOD_INDEX_USED bigint(20) unsigned NOT NULL,


FIRST_SEEN datetime NOT NULL DEFAULT NOW(),


LAST_SEEN datetime NOT NULL DEFAULT NOW()


) ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='按照事件的语句进行聚合,抓取每条标准化语句有关的延迟、错误和查询量信息';

-- 中间表ews_table_iowaits(取performance_schema.table_io_waits_summary_by_table:按照每个表进行统计的表I/O等待事件)


CREATE TABLE sys.ews_table_iowaits (


OBJECT_TYPE varchar(64) DEFAULT NULL,


OBJECT_SCHEMA varchar(64) DEFAULT NULL,


OBJECT_NAME varchar(64) DEFAULT NULL,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_TIMER_WAIT bigint(20) unsigned NOT NULL,


MIN_TIMER_WAIT bigint(20) unsigned NOT NULL,


AVG_TIMER_WAIT bigint(20) unsigned NOT NULL,


MAX_TIMER_WAIT bigint(20) unsigned NOT NULL,


COUNT_READ bigint(20) unsigned NOT NULL,


SUM_TIMER_READ bigint(20) unsigned NOT NULL,


MIN_TIMER_READ bigint(20) unsigned NOT NULL,


AVG_TIMER_READ bigint(20) unsigned NOT NULL,


MAX_TIMER_READ bigint(20) unsigned NOT NULL,


COUNT_WRITE bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE bigint(20) unsigned NOT NULL,


COUNT_FETCH bigint(20) unsigned NOT NULL,


SUM_TIMER_FETCH bigint(20) unsigned NOT NULL,


MIN_TIMER_FETCH bigint(20) unsigned NOT NULL,


AVG_TIMER_FETCH bigint(20) unsigned NOT NULL,


MAX_TIMER_FETCH bigint(20) unsigned NOT NULL,


COUNT_INSERT bigint(20) unsigned NOT NULL,


SUM_TIMER_INSERT bigint(20) unsigned NOT NULL,


MIN_TIMER_INSERT bigint(20) unsigned NOT NULL,


AVG_TIMER_INSERT bigint(20) unsigned NOT NULL,


MAX_TIMER_INSERT bigint(20) unsigned NOT NULL,


COUNT_UPDATE bigint(20) unsigned NOT NULL,


SUM_TIMER_UPDATE bigint(20) unsigned NOT NULL,


MIN_TIMER_UPDATE bigint(20) unsigned NOT NULL,


AVG_TIMER_UPDATE bigint(20) unsigned NOT NULL,


MAX_TIMER_UPDATE bigint(20) unsigned NOT NULL,


COUNT_DELETE bigint(20) unsigned NOT NULL,


SUM_TIMER_DELETE bigint(20) unsigned NOT NULL,


MIN_TIMER_DELETE bigint(20) unsigned NOT NULL,


AVG_TIMER_DELETE bigint(20) unsigned NOT NULL,


MAX_TIMER_DELETE bigint(20) unsigned NOT NULL,


INSERT_DATE datetime NOT NULL


) ENGINE=INNODB DEFAULT CHARSET=utf8 COMMENT='按照每个表进行统计的表I/O等待事件';

-- 中间表ews_index_iowaits(取performance_schema.table_io_waits_summary_by_index_usage:按照每个索引进行统计的表I/O等待事件)


CREATE TABLE sys.ews_index_iowaits (


OBJECT_TYPE varchar(64) DEFAULT NULL,


OBJECT_SCHEMA varchar(64) DEFAULT NULL,


OBJECT_NAME varchar(64) DEFAULT NULL,


INDEX_NAME varchar(64) DEFAULT NULL,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_TIMER_WAIT bigint(20) unsigned NOT NULL,


MIN_TIMER_WAIT bigint(20) unsigned NOT NULL,


AVG_TIMER_WAIT bigint(20) unsigned NOT NULL,


MAX_TIMER_WAIT bigint(20) unsigned NOT NULL,


COUNT_READ bigint(20) unsigned NOT NULL,


SUM_TIMER_READ bigint(20) unsigned NOT NULL,


MIN_TIMER_READ bigint(20) unsigned NOT NULL,


AVG_TIMER_READ bigint(20) unsigned NOT NULL,


MAX_TIMER_READ bigint(20) unsigned NOT NULL,


COUNT_WRITE bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE bigint(20) unsigned NOT NULL,


COUNT_FETCH bigint(20) unsigned NOT NULL,


SUM_TIMER_FETCH bigint(20) unsigned NOT NULL,


MIN_TIMER_FETCH bigint(20) unsigned NOT NULL,


AVG_TIMER_FETCH bigint(20) unsigned NOT NULL,


MAX_TIMER_FETCH bigint(20) unsigned NOT NULL,


COUNT_INSERT bigint(20) unsigned NOT NULL,


SUM_TIMER_INSERT bigint(20) unsigned NOT NULL,


MIN_TIMER_INSERT bigint(20) unsigned NOT NULL,


AVG_TIMER_INSERT bigint(20) unsigned NOT NULL,


MAX_TIMER_INSERT bigint(20) unsigned NOT NULL,


COUNT_UPDATE bigint(20) unsigned NOT NULL,


SUM_TIMER_UPDATE bigint(20) unsigned NOT NULL,


MIN_TIMER_UPDATE bigint(20) unsigned NOT NULL,


AVG_TIMER_UPDATE bigint(20) unsigned NOT NULL,


MAX_TIMER_UPDATE bigint(20) unsigned NOT NULL,


COUNT_DELETE bigint(20) unsigned NOT NULL,


SUM_TIMER_DELETE bigint(20) unsigned NOT NULL,


MIN_TIMER_DELETE bigint(20) unsigned NOT NULL,


AVG_TIMER_DELETE bigint(20) unsigned NOT NULL,


MAX_TIMER_DELETE bigint(20) unsigned NOT NULL,


INSERT_DATE datetime NOT NULL


) ENGINE=INNODB DEFAULT CHARSET=utf8 COMMENT='按照每个索引进行统计的表I/O等待事件';

-- 中间表sys.ews_table_lockwaits(取performance_schema.table_lock_waits_summary_by_table：按照每个表进行统计的表锁等待事件)


CREATE TABLE sys.ews_table_lockwaits (


OBJECT_TYPE varchar(64) DEFAULT NULL,


OBJECT_SCHEMA varchar(64) DEFAULT NULL,


OBJECT_NAME varchar(64) DEFAULT NULL,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_TIMER_WAIT bigint(20) unsigned NOT NULL,


MIN_TIMER_WAIT bigint(20) unsigned NOT NULL,


AVG_TIMER_WAIT bigint(20) unsigned NOT NULL,


MAX_TIMER_WAIT bigint(20) unsigned NOT NULL,


COUNT_READ bigint(20) unsigned NOT NULL,


SUM_TIMER_READ bigint(20) unsigned NOT NULL,


MIN_TIMER_READ bigint(20) unsigned NOT NULL,


AVG_TIMER_READ bigint(20) unsigned NOT NULL,


MAX_TIMER_READ bigint(20) unsigned NOT NULL,


COUNT_WRITE bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE bigint(20) unsigned NOT NULL,


COUNT_READ_NORMAL bigint(20) unsigned NOT NULL,


SUM_TIMER_READ_NORMAL bigint(20) unsigned NOT NULL,


MIN_TIMER_READ_NORMAL bigint(20) unsigned NOT NULL,


AVG_TIMER_READ_NORMAL bigint(20) unsigned NOT NULL,


MAX_TIMER_READ_NORMAL bigint(20) unsigned NOT NULL,


COUNT_READ_WITH_SHARED_LOCKS bigint(20) unsigned NOT NULL,


SUM_TIMER_READ_WITH_SHARED_LOCKS bigint(20) unsigned NOT NULL,


MIN_TIMER_READ_WITH_SHARED_LOCKS bigint(20) unsigned NOT NULL,


AVG_TIMER_READ_WITH_SHARED_LOCKS bigint(20) unsigned NOT NULL,


MAX_TIMER_READ_WITH_SHARED_LOCKS bigint(20) unsigned NOT NULL,


COUNT_READ_NO_INSERT bigint(20) unsigned NOT NULL,


SUM_TIMER_READ_NO_INSERT bigint(20) unsigned NOT NULL,


MIN_TIMER_READ_NO_INSERT bigint(20) unsigned NOT NULL,


AVG_TIMER_READ_NO_INSERT bigint(20) unsigned NOT NULL,


MAX_TIMER_READ_NO_INSERT bigint(20) unsigned NOT NULL,


COUNT_READ_EXTERNAL bigint(20) unsigned NOT NULL,


SUM_TIMER_READ_EXTERNAL bigint(20) unsigned NOT NULL,


MIN_TIMER_READ_EXTERNAL bigint(20) unsigned NOT NULL,


AVG_TIMER_READ_EXTERNAL bigint(20) unsigned NOT NULL,


MAX_TIMER_READ_EXTERNAL bigint(20) unsigned NOT NULL,


COUNT_WRITE_ALLOW_WRITE bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE_ALLOW_WRITE bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE_ALLOW_WRITE bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE_ALLOW_WRITE bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE_ALLOW_WRITE bigint(20) unsigned NOT NULL,


COUNT_WRITE_CONCURRENT_INSERT bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE_CONCURRENT_INSERT bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE_CONCURRENT_INSERT bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE_CONCURRENT_INSERT bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE_CONCURRENT_INSERT bigint(20) unsigned NOT NULL,


COUNT_WRITE_NORMAL bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE_NORMAL bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE_NORMAL bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE_NORMAL bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE_NORMAL bigint(20) unsigned NOT NULL,


COUNT_WRITE_EXTERNAL bigint(20) unsigned NOT NULL,


SUM_TIMER_WRITE_EXTERNAL bigint(20) unsigned NOT NULL,


MIN_TIMER_WRITE_EXTERNAL bigint(20) unsigned NOT NULL,


AVG_TIMER_WRITE_EXTERNAL bigint(20) unsigned NOT NULL,


MAX_TIMER_WRITE_EXTERNAL bigint(20) unsigned NOT NULL,


INSERT_DATE datetime NOT NULL


) ENGINE=INNODB DEFAULT CHARSET=utf8 COMMENT='按照每个表进行统计的表锁等待事件';

-- 中间表sys.ews_file_io(取performance_schema.file_summary_by_instance:按照每个文件实例(对应具体的磁盘文件)进行统计的文件I/0等待事件)


CREATE TABLE sys.ews_file_io (


FILE_NAME varchar(512) NOT NULL,


EVENT_NAME varchar(128) NOT NULL,


COUNT_STAR bigint(20) unsigned NOT NULL,


SUM_NUMBER_OF_BYTES_READ bigint(20) NOT NULL,


SUM_NUMBER_OF_BYTES_WRITE bigint(20) NOT NULL,


INSERT_DATE datetime NOT NULL


) ENGINE=innodb DEFAULT CHARSET=utf8 COMMENT='按照每个文件实例(对应具体的磁盘文件)进行统计的文件I/0等待事件';

2、自定义存储过程

use sys;

drop procedure if exists ews;

DELIMITER //


CREATE DEFINER = root @'%' PROCEDURE ews( ) BEGIN


DECLARE


affect_rows INT;


DECLARE


del_day INT;-- 长日志存留期


DECLARE


v_commit INT DEFAULT 2;-- 定义事务用，1为正常，-10为失败


DECLARE


msg text;-- 记录错误信息


-- 异常的时候msg捕获报错信息


DECLARE


CONTINUE HANDLER FOR SQLEXCEPTION BEGIN


get diagnostics CONDITION 1 msg = message_text;
    SET v_commit <span class="token operator">=</span> - 10<span class="token punctuation">;</span>

END<span class="token punctuation">;</span>

SET @del_day <span class="token operator">=</span> 8<span class="token punctuation">;</span>

START TRANSACTION<span class="token punctuation">;</span>-- 设置事务

-- Top 10 Event Summary

INSERT INTO sys.ews_event SELECT

ews.EVENT_NAME,

ews.COUNT_STAR,

round<span class="token punctuation">(</span> ews.SUM_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> SUM_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.AVG_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> AVG_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.MIN_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> MIN_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.MAX_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> MAX_TIMER_WAIT,

now<span class="token punctuation">(</span> <span class="token punctuation">)</span>

FROM

    PERFORMANCE_SCHEMA.events_waits_summary_global_by_event_name ews

WHERE

    ews.count_star <span class="token operator">&gt;</span> 0

    AND ews.event_name <span class="token operator">!=</span> <span class="token string">'idle'</span><span class="token punctuation">;</span>

-- TOP 10 SQL

INSERT INTO sys.ews_sql <span class="token keyword">select</span> ews.SCHEMA_NAME,

ews.DIGEST,

ews.DIGEST_TEXT,

ews.COUNT_STAR,

round<span class="token punctuation">(</span> ews.SUM_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> SUM_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.MIN_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> MIN_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.AVG_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> AVG_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.MAX_TIMER_WAIT / 1000000 <span class="token punctuation">)</span> MAX_TIMER_WAIT,

round<span class="token punctuation">(</span> ews.SUM_LOCK_TIME / 1000000 <span class="token punctuation">)</span> SUM_LOCK_TIME,

ews.SUM_ERRORS,

ews.SUM_WARNINGS,

ews.SUM_ROWS_AFFECTED,

ews.SUM_ROWS_SENT,

ews.SUM_ROWS_EXAMINED,

ews.SUM_CREATED_TMP_DISK_TABLES,

ews.SUM_CREATED_TMP_TABLES,

ews.SUM_SELECT_FULL_JOIN,

ews.SUM_SELECT_FULL_RANGE_JOIN,

ews.SUM_SELECT_RANGE,

ews.SUM_SELECT_RANGE_CHECK,

ews.SUM_SELECT_SCAN,

ews.SUM_SORT_MERGE_PASSES,

ews.SUM_SORT_RANGE,

ews.SUM_SORT_ROWS,

ews.SUM_SORT_SCAN,

ews.SUM_NO_INDEX_USED,

ews.SUM_NO_GOOD_INDEX_USED,

ews.FIRST_SEEN,

ews.LAST_SEEN

FROM

    PERFORMANCE_SCHEMA.events_statements_summary_by_digest ews

WHERE

    ews.SCHEMA_NAME NOT IN <span class="token punctuation">(</span> <span class="token string">'perf_stat'</span>, <span class="token string">'mysql'</span>, <span class="token string">'sys'</span>, <span class="token string">'performance_schema'</span>, <span class="token string">'information_schema'</span> <span class="token punctuation">)</span>

    AND ews.count_star <span class="token operator">&gt;</span> 0

    AND ews.digest_text NOT LIKE <span class="token string">'SHOW%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'USE%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'SET%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'SELECT @%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'EXPLAIN%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'DROP PROCEDURE%'</span>

    AND ews.digest_text NOT LIKE <span class="token string">'CREATE PROCEDURE%'</span><span class="token punctuation">;</span>

-- Top 10 Table By LOGICAL IO Wait

INSERT INTO sys.ews_table_iowaits <span class="token keyword">select</span>

        ews.OBJECT_TYPE,

        ews.OBJECT_SCHEMA,

        ews.OBJECT_NAME,

        ews.COUNT_STAR,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WAIT/1000000<span class="token punctuation">)</span> SUM_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WAIT/1000000<span class="token punctuation">)</span> MIN_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WAIT/1000000<span class="token punctuation">)</span> AVG_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WAIT/1000000<span class="token punctuation">)</span> MAX_TIMER_WAIT,

        ews.COUNT_READ,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ/1000000<span class="token punctuation">)</span> SUM_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ/1000000<span class="token punctuation">)</span> MIN_TIMER_READ,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ/1000000<span class="token punctuation">)</span> AVG_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ/1000000<span class="token punctuation">)</span> MAX_TIMER_READ,

        ews.COUNT_WRITE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE,

        ews.COUNT_FETCH,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_FETCH/1000000<span class="token punctuation">)</span> SUM_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_FETCH/1000000<span class="token punctuation">)</span> MIN_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_FETCH/1000000<span class="token punctuation">)</span> AVG_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_FETCH/1000000<span class="token punctuation">)</span> MAX_TIMER_FETCH,

        ews.COUNT_INSERT,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_INSERT/1000000<span class="token punctuation">)</span> SUM_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_INSERT/1000000<span class="token punctuation">)</span> MIN_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_INSERT/1000000<span class="token punctuation">)</span> AVG_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_INSERT/1000000<span class="token punctuation">)</span> MAX_TIMER_INSERT,

        ews.COUNT_UPDATE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_UPDATE/1000000<span class="token punctuation">)</span> SUM_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_UPDATE/1000000<span class="token punctuation">)</span> MIN_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_UPDATE/1000000<span class="token punctuation">)</span> AVG_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_UPDATE/1000000<span class="token punctuation">)</span> MAX_TIMER_UPDATE,

        ews.COUNT_DELETE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_DELETE/1000000<span class="token punctuation">)</span> SUM_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_DELETE/1000000<span class="token punctuation">)</span> MIN_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_DELETE/1000000<span class="token punctuation">)</span> AVG_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_DELETE/1000000<span class="token punctuation">)</span> MAX_TIMER_DELETE,

        now<span class="token punctuation">(</span> <span class="token punctuation">)</span>

    from performance_schema.table_io_waits_summary_by_table ews

    where ews.OBJECT_SCHEMA not <span class="token keyword">in</span> <span class="token punctuation">(</span><span class="token string">'perf_stat'</span>,<span class="token string">'mysql'</span>,<span class="token string">'sys'</span>,<span class="token string">'performance_schema'</span>,<span class="token string">'information_schema'</span><span class="token punctuation">)</span>

    and ews.count_star <span class="token operator">&gt;</span> 0<span class="token punctuation">;</span> 

-- Top 10 Index By LOGICAL IO Wait

INSERT INTO SYS.ews_index_iowaits <span class="token keyword">select</span>

        ews.OBJECT_TYPE,

        ews.OBJECT_SCHEMA,

        ews.OBJECT_NAME,

        ews.INDEX_NAME,

        ews.COUNT_STAR,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WAIT/1000000<span class="token punctuation">)</span> SUM_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WAIT/1000000<span class="token punctuation">)</span> MIN_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WAIT/1000000<span class="token punctuation">)</span> AVG_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WAIT/1000000<span class="token punctuation">)</span> MAX_TIMER_WAIT,

        ews.COUNT_READ,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ/1000000<span class="token punctuation">)</span> SUM_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ/1000000<span class="token punctuation">)</span> MIN_TIMER_READ,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ/1000000<span class="token punctuation">)</span> AVG_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ/1000000<span class="token punctuation">)</span> MAX_TIMER_READ,

        ews.COUNT_WRITE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE,

        ews.COUNT_FETCH,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_FETCH/1000000<span class="token punctuation">)</span> SUM_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_FETCH/1000000<span class="token punctuation">)</span> MIN_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_FETCH/1000000<span class="token punctuation">)</span> AVG_TIMER_FETCH,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_FETCH/1000000<span class="token punctuation">)</span> MAX_TIMER_FETCH,

        ews.COUNT_INSERT,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_INSERT/1000000<span class="token punctuation">)</span> SUM_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_INSERT/1000000<span class="token punctuation">)</span> MIN_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_INSERT/1000000<span class="token punctuation">)</span> AVG_TIMER_INSERT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_INSERT/1000000<span class="token punctuation">)</span> MAX_TIMER_INSERT,

        ews.COUNT_UPDATE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_UPDATE/1000000<span class="token punctuation">)</span> SUM_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_UPDATE/1000000<span class="token punctuation">)</span> MIN_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_UPDATE/1000000<span class="token punctuation">)</span> AVG_TIMER_UPDATE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_UPDATE/1000000<span class="token punctuation">)</span> MAX_TIMER_UPDATE,

        ews.COUNT_DELETE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_DELETE/1000000<span class="token punctuation">)</span> SUM_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_DELETE/1000000<span class="token punctuation">)</span> MIN_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_DELETE/1000000<span class="token punctuation">)</span> AVG_TIMER_DELETE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_DELETE/1000000<span class="token punctuation">)</span> MAX_TIMER_DELETE,

        now<span class="token punctuation">(</span> <span class="token punctuation">)</span>

    from performance_schema.table_io_waits_summary_by_index_usage ews

    where ews.OBJECT_SCHEMA not <span class="token keyword">in</span> <span class="token punctuation">(</span><span class="token string">'perf_stat'</span>,<span class="token string">'mysql'</span>,<span class="token string">'sys'</span>,<span class="token string">'performance_schema'</span>,<span class="token string">'information_schema'</span><span class="token punctuation">)</span>

    and ews.count_star <span class="token operator">&gt;</span> 0<span class="token punctuation">;</span>

-- Top 10 Table By LOCKS WAITS

INSERT INTO sys.ews_table_lockwaits <span class="token keyword">select</span>

        ews.OBJECT_TYPE,

        ews.OBJECT_SCHEMA,

        ews.OBJECT_NAME,

        ews.COUNT_STAR,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WAIT/1000000<span class="token punctuation">)</span> SUM_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WAIT/1000000<span class="token punctuation">)</span> MIN_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WAIT/1000000<span class="token punctuation">)</span> AVG_TIMER_WAIT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WAIT/1000000<span class="token punctuation">)</span> MAX_TIMER_WAIT,

        ews.COUNT_READ,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ/1000000<span class="token punctuation">)</span> SUM_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ/1000000<span class="token punctuation">)</span> MIN_TIMER_READ,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ/1000000<span class="token punctuation">)</span> AVG_TIMER_READ,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ/1000000<span class="token punctuation">)</span> MAX_TIMER_READ,

        ews.COUNT_WRITE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE,

        ews.COUNT_READ_NORMAL,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ_NORMAL/1000000<span class="token punctuation">)</span> SUM_TIMER_READ_NORMAL,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ_NORMAL/1000000<span class="token punctuation">)</span> MIN_TIMER_READ_NORMAL,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ_NORMAL/1000000<span class="token punctuation">)</span> AVG_TIMER_READ_NORMAL,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ_NORMAL/1000000<span class="token punctuation">)</span> MAX_TIMER_READ_NORMAL,

        ews.COUNT_READ_WITH_SHARED_LOCKS,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ_WITH_SHARED_LOCKS/1000000<span class="token punctuation">)</span> SUM_TIMER_READ_WITH_SHARED_LOCKS,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ_WITH_SHARED_LOCKS/1000000<span class="token punctuation">)</span> MIN_TIMER_READ_WITH_SHARED_LOCKS,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ_WITH_SHARED_LOCKS/1000000<span class="token punctuation">)</span> AVG_TIMER_READ_WITH_SHARED_LOCKS,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ_WITH_SHARED_LOCKS/1000000<span class="token punctuation">)</span> MAX_TIMER_READ_WITH_SHARED_LOCKS,

        ews.COUNT_READ_NO_INSERT,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ_NO_INSERT/1000000<span class="token punctuation">)</span> SUM_TIMER_READ_NO_INSERT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ_NO_INSERT/1000000<span class="token punctuation">)</span> MIN_TIMER_READ_NO_INSERT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ_NO_INSERT/1000000<span class="token punctuation">)</span> AVG_TIMER_READ_NO_INSERT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ_NO_INSERT/1000000<span class="token punctuation">)</span> MAX_TIMER_READ_NO_INSERT,

        ews.COUNT_READ_EXTERNAL,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_READ_EXTERNAL/1000000<span class="token punctuation">)</span> SUM_TIMER_READ_EXTERNAL,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_READ_EXTERNAL/1000000<span class="token punctuation">)</span> MIN_TIMER_READ_EXTERNAL,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_READ_EXTERNAL/1000000<span class="token punctuation">)</span> AVG_TIMER_READ_EXTERNAL,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_READ_EXTERNAL/1000000<span class="token punctuation">)</span> MAX_TIMER_READ_EXTERNAL,

        ews.COUNT_WRITE_ALLOW_WRITE,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE_ALLOW_WRITE/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE_ALLOW_WRITE,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE_ALLOW_WRITE/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE_ALLOW_WRITE,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE_ALLOW_WRITE/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE_ALLOW_WRITE,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE_ALLOW_WRITE/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE_ALLOW_WRITE,

        ews.COUNT_WRITE_CONCURRENT_INSERT,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE_CONCURRENT_INSERT/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE_CONCURRENT_INSERT,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE_CONCURRENT_INSERT/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE_CONCURRENT_INSERT,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE_CONCURRENT_INSERT/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE_CONCURRENT_INSERT,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE_CONCURRENT_INSERT/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE_CONCURRENT_INSERT,

        ews.COUNT_WRITE_NORMAL,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE_NORMAL/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE_NORMAL,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE_NORMAL/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE_NORMAL,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE_NORMAL/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE_NORMAL,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE_NORMAL/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE_NORMAL,

        ews.COUNT_WRITE_EXTERNAL,

        round<span class="token punctuation">(</span>ews.SUM_TIMER_WRITE_EXTERNAL/1000000<span class="token punctuation">)</span> SUM_TIMER_WRITE_EXTERNAL,

        round<span class="token punctuation">(</span>ews.MIN_TIMER_WRITE_EXTERNAL/1000000<span class="token punctuation">)</span> MIN_TIMER_WRITE_EXTERNAL,

        round<span class="token punctuation">(</span>ews.AVG_TIMER_WRITE_EXTERNAL/1000000<span class="token punctuation">)</span> AVG_TIMER_WRITE_EXTERNAL,

        round<span class="token punctuation">(</span>ews.MAX_TIMER_WRITE_EXTERNAL/1000000<span class="token punctuation">)</span> MAX_TIMER_WRITE_EXTERNAL,

        now<span class="token punctuation">(</span> <span class="token punctuation">)</span>

    from performance_schema.table_lock_waits_summary_by_table ews

    where ews.OBJECT_SCHEMA not <span class="token keyword">in</span> <span class="token punctuation">(</span><span class="token string">'perf_stat'</span>,<span class="token string">'mysql'</span>,<span class="token string">'sys'</span>,<span class="token string">'performance_schema'</span>,<span class="token string">'information_schema'</span><span class="token punctuation">)</span>

    and ews.count_star <span class="token operator">&gt;</span> 0<span class="token punctuation">;</span> 

-- TOP 10 Table By PHYSICAL IO Wait

INSERT INTO sys.ews_file_io SELECT

       file_name,

       event_name,

       COUNT_STAR,

       SUM_NUMBER_OF_BYTES_READ,

       SUM_NUMBER_OF_BYTES_WRITE,

       NOW<span class="token punctuation">(</span> <span class="token punctuation">)</span>

FROM performance_schema.file_summary_by_instance<span class="token punctuation">;</span>

COMMIT<span class="token punctuation">;</span>-- 异常回滚且记录日志

START TRANSACTION<span class="token punctuation">;</span>-- 设置删除事务

delete from sys.ews_event where insert_date <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_event成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span>   

delete from sys.ews_sql where last_seen <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_sql成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span>

delete from sys.ews_table_iowaits where insert_date <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_table_iowaits成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span>

delete from sys.ews_index_iowaits where insert_date <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_index_iowaits成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span>

delete from sys.ews_table_lockwaits where insert_date <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_table_lockwaits成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span>

delete from sys.ews_file_io where insert_date <span class="token operator">&lt;</span> DATE_SUB<span class="token punctuation">(</span>CURDATE<span class="token punctuation">(</span><span class="token punctuation">)</span>,INTERVAL @del_day DAY<span class="token punctuation">)</span><span class="token punctuation">;</span>

<span class="token keyword">select</span> ROW_COUNT<span class="token punctuation">(</span><span class="token punctuation">)</span> into @affect_rows<span class="token punctuation">;</span>

insert into sys.error_log values<span class="token punctuation">(</span><span class="token string">'删除sys.ews_file_io成功'</span>,@affect_rows,now<span class="token punctuation">(</span><span class="token punctuation">))</span><span class="token punctuation">;</span> 

COMMIT<span class="token punctuation">;</span>-- 异常回滚且记录日志

IF

    v_commit <span class="token operator">=</span> - 10 THEN

        ROLLBACK<span class="token punctuation">;</span>

    INSERT INTO sys.error_log VALUES <span class="token punctuation">(</span> msg, 0, now<span class="token punctuation">(</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span><span class="token punctuation">;</span>

END IF<span class="token punctuation">;</span>


END //


DELIMITER;

3、定时任务

-- 定时执行存储过程

USE SYS;

DROP EVENT IF EXISTS ews;

CREATE EVENT ews ON SCHEDULE EVERY 10 MINUTE DO

CALL ews ( );

4、创建索引

考虑到后面查询基本是按日期做筛选来查的，所以建这个索引。

create index idx_date1 on ews_event(insert_date);

create index idx_date2 on ews_sql(last_seen);

create index idx_date3 on ews_table_iowaits(insert_date);

create index idx_date4 on ews_index_iowaits(insert_date);

create index idx_date5 on ews_table_lockwaits(insert_date);

create index idx_date6 on ews_file_io(insert_date);

5、数据查询

5.1、最近30分钟排名前十的等待事件

SELECT

    event_name "等待事件",

    max( count_star ) - min( count_star)+1 "等待次数",

    round( ( max( sum_timer_wait ) - min( sum_timer_wait ) ) / 1000 ) "总时长(s)↓",

    concat(

    round(

         (max( sum_timer_wait ) - min( sum_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(sum_timer_wait) - min( sum_timer_wait ) ) ev  FROM  sys.ews_event

                 WHERE  insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE GROUP BY  event_name ) c

            ) * 100,

         2),

  '%') "总时长占比",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均等待时间(ms)"

FROM    sys.ews_event

WHERE   insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    event_name

ORDER BY    max( sum_timer_wait ) - min( sum_timer_wait ) DESC  LIMIT 10;

5.2、最近30分钟总耗时排名前十的sql

SELECT

    DIGEST "sql_id",

    SCHEMA_NAME "数据库",

    max( COUNT_STAR ) - min( COUNT_STAR )+1 "执行次数",

    round( ( max( sum_timer_wait ) - min( sum_timer_wait ) ) / 1000 ) "总时长(s)↓",

    concat(

    round(

         (max( sum_timer_wait ) - min( sum_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(sum_timer_wait) - min( sum_timer_wait ) ) ev  FROM  sys.ews_sql

                 WHERE  last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE GROUP BY    DIGEST) c

            ) * 100,

         2),

  '%') "总时长占比",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均时长(ms)",

    max( SUM_ROWS_EXAMINED ) - min( SUM_ROWS_EXAMINED ) "总检查行数",

    max( LAST_SEEN ) "最后执行时间",

    DIGEST_TEXT "sql语句"

FROM    sys.ews_sql

WHERE   last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    DIGEST

ORDER BY    max( sum_timer_wait ) - min( sum_timer_wait ) DESC  LIMIT 10;

5.3、最近30分钟执行次数排名前十的sql

SELECT

    SCHEMA_NAME "数据库",

    DIGEST "sql_id",

    max( COUNT_STAR ) - min( COUNT_STAR ) "执行次数↓",

    concat(

    round(

         (max( COUNT_STAR ) - min( COUNT_STAR ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(COUNT_STAR) - min( COUNT_STAR ) ) ev  FROM  sys.ews_sql

                 WHERE  last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE GROUP BY    DIGEST) c

            ) * 100,

         2),

  '%') "执行次数占比",

    max( sum_timer_wait ) - min( sum_timer_wait ) "总时长(ms)",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均时长(ms)",

    max( SUM_ROWS_EXAMINED ) - min( SUM_ROWS_EXAMINED ) "总检查行数",

    max( LAST_SEEN ) "最后执行时间",

    DIGEST_TEXT "sql语句"

FROM    sys.ews_sql

WHERE   last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    DIGEST

ORDER BY    max( COUNT_STAR ) - min( COUNT_STAR ) DESC  LIMIT 10;

5.4、最近30分钟平均耗时最长的前十sql语句

SELECT

    DIGEST "sql_id",

    SCHEMA_NAME "数据库",

    max( COUNT_STAR ) - min( COUNT_STAR ) "执行次数",

    round( ( max( sum_timer_wait ) - min( sum_timer_wait ) ) / 1000 ) "总时长(s)",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均时长(ms)↓",

    concat(

    round(

         (max( avg_timer_wait ) - min( avg_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(avg_timer_wait) - min( avg_timer_wait ) ) ev  FROM  sys.ews_sql

                 WHERE  last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE GROUP BY    DIGEST) c

            ) * 100,

         2),

  '%') "平均时长占比",

    max( SUM_ROWS_EXAMINED ) - min( SUM_ROWS_EXAMINED ) "总检查行数",

    max( LAST_SEEN ) "最后执行时间",

    DIGEST_TEXT "sql语句"

FROM    sys.ews_sql

WHERE   last_seen >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    DIGEST

ORDER BY    max( avg_timer_wait ) - min( avg_timer_wait ) DESC  LIMIT 10;

5.5、最近30分钟逻辑IO总延时排名前十的表

SELECT

    object_type "类型",

    object_schema "数据库",

    object_name "对象名",

    max( count_star ) - min( count_star ) "执行总次数",

    max( sum_timer_wait ) - min( sum_timer_wait ) "总延时(ms)↓",

    concat(

    round(

         (max( sum_timer_wait ) - min( sum_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(sum_timer_wait) - min( sum_timer_wait ) ) ev  FROM  sys.ews_table_iowaits

                 WHERE  insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE GROUP BY object_schema,   object_name,object_type ) c

            ) * 100,

         2),

  '%') "总延时占比",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均延时(ms)",

    max( count_read ) - min( count_read ) "读次数",

    max( sum_timer_read ) - min( sum_timer_read ) "读延时(ms)",

    max( avg_timer_read ) - min( avg_timer_read ) "平均读延时(ms)",

    max( count_write ) - min( count_write ) "写次数",

    max( sum_timer_write ) - min( sum_timer_write ) "写延时(ms)",

    max( avg_timer_write ) - min( avg_timer_write ) "平均写延时(ms)"

FROM    sys.ews_table_iowaits

WHERE   insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    object_schema,  object_name,    object_type

ORDER BY    max( sum_timer_wait ) - min( sum_timer_wait ) DESC LIMIT 10;

5.6、最近30分钟逻辑IO总延时排名前十的索引

SELECT

    object_type "类型",

    object_schema "数据库",

    object_name "对象名称",

    index_name "索引名称",

    max( count_star ) - min( count_star ) "执行总次数",

    max( sum_timer_wait ) - min( sum_timer_wait ) "总延时(ms)↓",

    concat(

    round(

         (max( sum_timer_wait ) - min( sum_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(sum_timer_wait) - min( sum_timer_wait ) ) ev  FROM  sys.ews_index_iowaits

                 WHERE  insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE  and index_name is not null GROUP BY object_schema,   object_name,index_name, object_type ) c

            ) * 100,

         2),

  '%') "总延时占比",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均延时(ms)",

    max( count_read ) - min( count_read ) "读次数",

    max( sum_timer_read ) - min( sum_timer_read ) "读延时(ms)",

    max( avg_timer_read ) - min( avg_timer_read ) "平均读延时(ms)",

    max( count_write ) - min( count_write ) "写次数",

    max( sum_timer_write ) - min( sum_timer_write ) "写延时(ms)",

    max( avg_timer_write ) - min( avg_timer_write ) "平均写延时(ms)"

FROM    sys.ews_index_iowaits

WHERE   insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE and index_name is not null

GROUP BY    object_schema,  object_name,    index_name, object_type

ORDER BY    max( sum_timer_wait ) - min( sum_timer_wait ) DESC limit 10;

5.7、最近30分钟表锁耗时排名前十的表

SELECT

    object_type "类型",

    object_schema "数据库",

    object_name "对象名称",

    max( count_star ) - min( count_star ) "执行总次数",

    max( sum_timer_wait ) - min( sum_timer_wait ) "总延时(ms)↓",

    concat(

    round(

         (max( sum_timer_wait ) - min( sum_timer_wait ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max(sum_timer_wait) - min( sum_timer_wait ) ) ev  FROM  sys.ews_table_lockwaits

                 WHERE  insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE  GROUP BY object_schema,object_name,object_type ) c

            ) * 100,

         2),

  '%') "总延时占比",

    max( avg_timer_wait ) - min( avg_timer_wait ) "平均延时(ms)",

    max( count_read ) - min( count_read ) "读次数",

    max( sum_timer_read ) - min( sum_timer_read ) "读延时(ms)",

    max( avg_timer_read ) - min( avg_timer_read ) "平均读延时(ms)",

    max( count_write ) - min( count_write ) "写次数",

    max( sum_timer_write ) - min( sum_timer_write ) "写延时(ms)",

    max( avg_timer_write ) - min( avg_timer_write ) "平均写延时(ms)"

FROM    sys.ews_table_lockwaits

WHERE   insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    object_schema,  object_name,    object_type

ORDER BY    max( sum_timer_wait ) - min( sum_timer_wait ) DESC LIMIT 10;

5.8、最近30分钟物理IO排名前十的表

SELECT

    FILE_NAME "文件名",

    EVENT_NAME "等待事件",

    max( COUNT_STAR ) - min( COUNT_STAR ) "文件I/0操作数量",

    round( ( max( sum_number_of_bytes_read ) - min( sum_number_of_bytes_read ) ) / 1024 ) "文件读I/0数据量(KB)",

    round( ( max( sum_number_of_bytes_write ) - min( sum_number_of_bytes_write ) ) / 1024 ) "文件写I/0数据量(KB)",

    concat(

    round(

         (max( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE ) - min( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE ))/(

                 SELECT sum(ev) FROM

             ( SELECT (max( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE ) - min( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE )) ev  FROM  sys.ews_file_io

                 WHERE  insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE  GROUP BY FILE_NAME,EVENT_NAME)c

            ) * 100,

         2),

  '%') "文件I/0占比↓"

FROM    sys.ews_file_io

WHERE   insert_date >= CURRENT_TIMESTAMP - INTERVAL 30 MINUTE

GROUP BY    FILE_NAME,  EVENT_NAME

ORDER BY    max( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE ) - min( SUM_NUMBER_OF_BYTES_READ + SUM_NUMBER_OF_BYTES_WRITE ) DESC LIMIT 10;

5.9、未使用的索引

通过table_io_waits_summary_by_index_usage表可以获得系统运行到现在，哪些索引从来没有被用过。由于索引也会占用大量的空间，可以利用这个统计信息，结合一定的时间策略将无用的索引删除。

SELECT

    OBJECT_SCHEMA "数据库",

    OBJECT_NAME "对象名称",

    INDEX_NAME "索引名称"

FROM

    performance_schema.table_io_waits_summary_by_index_usage ews

WHERE

    INDEX_NAME IS NOT NULL

    AND COUNT_STAR = 0

    AND OBJECT_SCHEMA  not in ('perf_stat','mysql','sys','performance_schema','information_schema');

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