Benötigen Sie eine MySQL -Abfrage/Konfigurationsoptimierung

https://stackoverflow.com/questions/19824682

05-07-2022
|

Frage

Ich versuche, eine bestimmte Abfrage zu optimieren, um die schnellste Zeit zu erreichen. Das erste, was mir in den Sinn kam, war, Percona 5.6 auf einer anderen/besseren Hardware zu versuchen:

Hardware (beide haben den gleichen RAID -Controller/Cache/Batterie):
MySQL Server: 4x300 GB 10K SAS - RAID10 (8 CPU -Kerne)
Percona Server: 2x100 GB Kingston SSD E100 - RAID1 (24 CPU -Kerne)

Bei MySQL 5.5.33 wird diese Abfrage in einem Durchschnitt 15 Sekunden ausgeführt.
Auf Percona 5.6.14 Diese Abfrage wird in einem durchschnittlichen 10 Sekunden ausgeführt.

        SELECT 
  a.*,
  d.cheap,
  d.name AS delivery_name,
  cu.name AS cuisine,
  IFNULL(a.sec_cuis, d.sec_cuis) AS sec_cuis,
  d.ticket,
  IF(
    TIMESTAMPDIFF(SECOND, a.online, NOW()) <= 120,
    1,
    0
  ) AS online,
  MAX(
    IF(
      (
        ts.time_from <= CURTIME() 
        OR (
          ts.time_to >= CURTIME() 
          AND ts.time_to < ts.time_from
        )
      ) 
      AND (
        ts.time_to >= CURTIME() 
        OR (
          ts.time_to < ts.time_from 
          AND ts.time_from <= CURTIME()
        )
      ) 
      OR (
        ts.time_to = ts.time_from 
        AND ts.time_to IS NOT NULL
      ),
      1,
      0
    )
  ) AS OPEN,
  COUNT(DISTINCT re.id) AS reviews_comm 
FROM
  cats AS c 
  JOIN time_schedule AS ts
  JOIN accounts AS a 
  JOIN deliveries AS d 
  JOIN cuisines AS cu 
  JOIN cuisines2cats AS cc 
  JOIN products AS p 
  JOIN specs AS s 
  LEFT JOIN reviews AS re ON re.account_id = a.id AND re.approved = '1' AND re.active = '1' 
WHERE ts.account_id = a.id 
  AND ts.day = 'tue' 
  AND a.active = '1' 
  AND (
    a.delivery_type = 1 
    OR a.delivery_type = '2'
  ) 
  AND d.id = a.delivery_id 
  AND (
    d.def_cuis = cu.id 
    OR a.def_cuis = cu.id
  ) 
  AND d.active = '1' 
  AND cc.cat_id = c.id 
  AND cc.cuisine_id = '3' 
  AND a.delivery_id = c.delivery_id 
  AND p.cat_id = c.id 
  AND s.product_id = p.id 
  AND s.account_id = a.id 
GROUP BY a.id 
ORDER BY RAND() ;

Erstellen von Aussagen:

/*Table structure for table `accounts` */

CREATE TABLE `accounts` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `delivery_id` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `delivery_type` tinyint(1) NOT NULL DEFAULT '1',
  `username` varchar(45) COLLATE utf8_unicode_ci DEFAULT NULL,
  `password` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL COMMENT 'SHA1',
  `phone` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `street` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `number` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL,
  `postcode` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL,
  `area_id` int(11) DEFAULT NULL,
  `city_id` int(11) NOT NULL DEFAULT '1',
  `mon_from` time DEFAULT NULL,
  `mon_to` time DEFAULT NULL,
  `tue_from` time DEFAULT NULL,
  `tue_to` time DEFAULT NULL,
  `wed_from` time DEFAULT NULL,
  `wed_to` time DEFAULT NULL,
  `thu_from` time DEFAULT NULL,
  `thu_to` time DEFAULT NULL,
  `fri_from` time DEFAULT NULL,
  `fri_to` time DEFAULT NULL,
  `sat_from` time DEFAULT NULL,
  `sat_to` time DEFAULT NULL,
  `sun_from` time DEFAULT NULL,
  `sun_to` time DEFAULT NULL,
  `def_cuis` int(11) DEFAULT NULL,
  `sec_cuis` varchar(250) COLLATE utf8_unicode_ci DEFAULT NULL,
  `edt` smallint(6) DEFAULT NULL,
  `ect` tinyint(2) DEFAULT NULL,
  `delay_edt` tinyint(4) DEFAULT NULL,
  `company_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `doy` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `vat` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `activity` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `company_address` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `email` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `date_added` date DEFAULT NULL,
  `online_date` date DEFAULT NULL,
  `next_payment` date DEFAULT NULL,
  `payment_range` tinyint(4) DEFAULT NULL,
  `minimum_order` decimal(4,2) NOT NULL DEFAULT '0.00',
  `minimum_order_c` decimal(4,2) NOT NULL DEFAULT '0.00',
  `commission` tinyint(2) DEFAULT NULL,
  `aff_commission` tinyint(2) DEFAULT NULL,
  `supervisor_name` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
  `supervisor_phone` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `contact_name` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
  `contact_phone` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `dealer_name` varchar(255) COLLATE utf8_unicode_ci DEFAULT NULL,
  `comments` text COLLATE utf8_unicode_ci,
  `catalogue_desc` text COLLATE utf8_unicode_ci,
  `distance` tinyint(1) NOT NULL DEFAULT '0',
  `lat` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `lng` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `polygon` text COLLATE utf8_unicode_ci,
  `invoice` enum('0','1') COLLATE utf8_unicode_ci NOT NULL DEFAULT '0',
  `ticket_account` tinyint(1) NOT NULL DEFAULT '0',
  `cheap_account` tinyint(1) NOT NULL DEFAULT '0',
  `call_notification` tinyint(1) NOT NULL DEFAULT '1',
  `closed_notification` tinyint(1) NOT NULL DEFAULT '1',
  `b2b_printrow` tinyint(1) NOT NULL DEFAULT '0',
  `superuser_id` int(11) DEFAULT NULL,
  `tech_issue` tinyint(2) NOT NULL DEFAULT '0' COMMENT '0=ok,1=tech_issue',
  `online` timestamp NULL DEFAULT NULL,
  `call_status` tinyint(1) NOT NULL DEFAULT '0',
  `call_action` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
  `call_counter` tinyint(1) NOT NULL DEFAULT '0',
  `failed_call_counter` tinyint(3) NOT NULL DEFAULT '0',
  `next_call` timestamp NULL DEFAULT NULL,
  `account_status` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `active` tinyint(1) NOT NULL DEFAULT '1',
  `permalink` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_keywords` varchar(150) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_description` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `brand_text` text COLLATE utf8_unicode_ci,
  `last_update` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `delivery_id` (`delivery_id`),
  KEY `delivery_type` (`delivery_type`),
  KEY `invoice` (`invoice`),
  KEY `active_delivery_type` (`active`,`delivery_type`)
) ENGINE=InnoDB AUTO_INCREMENT=1202 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

/*Table structure for table `cats` */

CREATE TABLE `cats` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `delivery_id` bigint(20) DEFAULT NULL,
  `cuisine_id` int(11) DEFAULT NULL,
  `section_id` int(11) NOT NULL DEFAULT '1',
  `name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `description` text COLLATE utf8_unicode_ci NOT NULL,
  `max_toppings` tinyint(1) NOT NULL DEFAULT '2',
  `fan_id` int(11) DEFAULT NULL,
  `ordering` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  KEY `delivery_id` (`delivery_id`),
  KEY `cuisine_id` (`cuisine_id`)
) ENGINE=InnoDB AUTO_INCREMENT=6756 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

/*Table structure for table `cuisines` */    

CREATE TABLE `cuisines` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `permalink` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_keywords` varchar(150) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_description` text COLLATE utf8_unicode_ci,
  `title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `comments` text COLLATE utf8_unicode_ci,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=35 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
/*Table structure for table `cuisines2cats` */    

CREATE TABLE `cuisines2cats` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `cuisine_id` int(11) NOT NULL,
  `cat_id` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  KEY `cuisine_id_cat_id` (`cuisine_id`,`cat_id`)
) ENGINE=InnoDB AUTO_INCREMENT=8436 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

/*Table structure for table `deliveries` */

CREATE TABLE `deliveries` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `user_name` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `password` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `street` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `number` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL,
  `postcode` varchar(10) COLLATE utf8_unicode_ci DEFAULT NULL,
  `email` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `invoice_email` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `phone` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `area_id` int(11) DEFAULT NULL,
  `city_id` bigint(20) NOT NULL,
  `ticket` tinyint(4) NOT NULL DEFAULT '0',
  `cheap` tinyint(1) NOT NULL DEFAULT '1',
  `premium_until` date DEFAULT NULL,
  `mon_from` time DEFAULT NULL,
  `mon_to` time DEFAULT NULL,
  `tue_from` time DEFAULT NULL,
  `tue_to` time DEFAULT NULL,
  `wed_from` time DEFAULT NULL,
  `wed_to` time DEFAULT NULL,
  `thu_from` time DEFAULT NULL,
  `thu_to` time DEFAULT NULL,
  `fri_from` time DEFAULT NULL,
  `fri_to` time DEFAULT NULL,
  `sat_from` time DEFAULT NULL,
  `sat_to` time DEFAULT NULL,
  `sun_from` time DEFAULT NULL,
  `sun_to` time DEFAULT NULL,
  `edt` int(11) DEFAULT NULL COMMENT 'Estimate Delivery Time',
  `discount` tinyint(4) DEFAULT NULL,
  `biz_discount` tinyint(4) DEFAULT NULL,
  `invoice` enum('0','1') COLLATE utf8_unicode_ci NOT NULL DEFAULT '0',
  `minimum_order` decimal(4,2) DEFAULT NULL,
  `supervisor_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `supervisor_phone` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
  `contact_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `contact_phone` varchar(20) COLLATE utf8_unicode_ci DEFAULT NULL,
  `dealer_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `closed_notification_phone` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `order_notification_phone` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `company_name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `doy` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `vat` varchar(50) COLLATE utf8_unicode_ci DEFAULT NULL,
  `activity` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `comments` text COLLATE utf8_unicode_ci,
  `def_cuis` int(11) DEFAULT NULL,
  `sec_cuis` varchar(250) COLLATE utf8_unicode_ci DEFAULT NULL,
  `commission` tinyint(2) NOT NULL,
  `aff_commission` tinyint(2) DEFAULT NULL,
  `b2b_autoprint` tinyint(1) NOT NULL DEFAULT '1',
  `b2b_showpopup` tinyint(1) NOT NULL DEFAULT '1',
  `b2b_printrow` tinyint(4) NOT NULL DEFAULT '0',
  `active` tinyint(1) NOT NULL DEFAULT '1',
  `permalink` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_keywords` varchar(150) COLLATE utf8_unicode_ci DEFAULT NULL,
  `meta_description` varchar(200) COLLATE utf8_unicode_ci DEFAULT NULL,
  `title` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `brand_text` text COLLATE utf8_unicode_ci,
  PRIMARY KEY (`id`),
  KEY `id_active` (`id`,`active`)
) ENGINE=InnoDB AUTO_INCREMENT=444 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

/*Table structure for table `products` */

CREATE TABLE `products` (
  `id` int(8) NOT NULL AUTO_INCREMENT,
  `cat_id` int(8) DEFAULT NULL,
  `delivery_id` int(8) DEFAULT NULL,
  `name` varchar(100) COLLATE utf8_unicode_ci DEFAULT NULL,
  `description` text COLLATE utf8_unicode_ci,
  `new_product` tinyint(4) NOT NULL DEFAULT '0',
  `vegetarian` tinyint(1) NOT NULL DEFAULT '0',
  `spicy` tinyint(1) NOT NULL DEFAULT '0',
  `promo` tinyint(1) NOT NULL DEFAULT '0',
  `upsell` tinyint(1) NOT NULL DEFAULT '0',
  `ordering` smallint(6) DEFAULT NULL,
  `max_toppings` tinyint(4) DEFAULT NULL,
  `free_toppings` tinyint(4) NOT NULL DEFAULT '0',
  `comments` text COLLATE utf8_unicode_ci,
  `date_added` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `dont_allow_extra_topps` tinyint(1) NOT NULL DEFAULT '0',
  `fan_id` int(11) DEFAULT NULL,
  `active` tinyint(1) NOT NULL DEFAULT '1',
  PRIMARY KEY (`id`),
  KEY `cat_id` (`cat_id`),
  KEY `delivery_id` (`delivery_id`),
  KEY `active` (`active`),
  KEY `max_toppings` (`max_toppings`),
  KEY `free_toppings` (`free_toppings`)
) ENGINE=InnoDB AUTO_INCREMENT=41487 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

/*Table structure for table `specs` */

CREATE TABLE `specs` (
  `id` int(8) NOT NULL AUTO_INCREMENT,
  `product_id` int(8) DEFAULT NULL,
  `account_id` int(8) DEFAULT NULL,
  `pan_id` int(8) DEFAULT NULL,
  `size_id` int(8) DEFAULT NULL,
  `price` decimal(5,2) DEFAULT NULL,
  `topping_price` decimal(4,2) DEFAULT NULL,
  `available` tinyint(1) NOT NULL DEFAULT '1',
  `mon_from` time DEFAULT NULL,
  `mon_to` time DEFAULT NULL,
  `tue_from` time DEFAULT NULL,
  `tue_to` time DEFAULT NULL,
  `wed_from` time DEFAULT NULL,
  `wed_to` time DEFAULT NULL,
  `thu_from` time DEFAULT NULL,
  `thu_to` time DEFAULT NULL,
  `fri_from` time DEFAULT NULL,
  `fri_to` time DEFAULT NULL,
  `sat_from` time DEFAULT NULL,
  `sat_to` time DEFAULT NULL,
  `sun_from` time DEFAULT NULL,
  `sun_to` time DEFAULT NULL,
  `bank_from` time DEFAULT NULL,
  `bank_to` time DEFAULT NULL,
  `vat` decimal(4,2) DEFAULT NULL,
  `featured` tinyint(1) NOT NULL DEFAULT '0',
  `extension` varchar(5) COLLATE utf8_unicode_ci DEFAULT NULL,
  `active` tinyint(1) NOT NULL DEFAULT '0',
  `existing` tinyint(1) NOT NULL DEFAULT '1',
  PRIMARY KEY (`id`),
  KEY `pan_id` (`pan_id`),
  KEY `size_id` (`size_id`),
  KEY `topping_price` (`topping_price`),
  KEY `available` (`available`),
  KEY `active` (`active`),
  KEY `price` (`price`),
  KEY `existing` (`existing`),
  KEY `account_id_product_id` (`account_id`,`product_id`)
) ENGINE=InnoDB AUTO_INCREMENT=242078 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci ROW_FORMAT=COMPRESSED;

/*Table structure for table `time_schedule` */

CREATE TABLE `time_schedule` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `account_id` int(11) NOT NULL,
  `day` varchar(3) COLLATE utf8_unicode_ci NOT NULL,
  `time_from` time DEFAULT NULL,
  `time_to` time DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `account_id` (`account_id`,`day`)
) ENGINE=InnoDB AUTO_INCREMENT=5357 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

Erklärt:

MySQL 5.5.32 Explain:
+----+-------------+-------+--------+------------------------------------------+------------+---------+----------------------------------+------+---------------------------------+
| id | select_type | table | type   | possible_keys                            | key        | key_len | ref                              | rows | Extra                           |
+----+-------------+-------+--------+------------------------------------------+------------+---------+----------------------------------+------+---------------------------------+
|  1 | SIMPLE      | cc    | ref    | cuisine_id,cat_id                        | cuisine_id | 4       | const                            |  213 | Using temporary; Using filesort |
|  1 | SIMPLE      | c     | eq_ref | PRIMARY,delivery_id                      | PRIMARY    | 8       | delivera_deliveras.cc.cat_id     |    1 | Using where                     |
|  1 | SIMPLE      | p     | ref    | PRIMARY,cat_id                           | cat_id     | 5       | delivera_deliveras.c.id          |    3 | Using where; Using index        |
|  1 | SIMPLE      | s     | ref    | product_id,account_id                    | product_id | 5       | delivera_deliveras.p.id          |    4 | Using where                     |
|  1 | SIMPLE      | a     | eq_ref | PRIMARY,delivery_id,delivery_type,active | PRIMARY    | 8       | delivera_deliveras.s.account_id  |    1 | Using where                     |
|  1 | SIMPLE      | d     | eq_ref | PRIMARY,active                           | PRIMARY    | 8       | delivera_deliveras.a.delivery_id |    1 | Using where                     |
|  1 | SIMPLE      | re    | ref    | account_id,active,approved               | account_id | 4       | delivera_deliveras.a.id          |    1 |                                 |
|  1 | SIMPLE      | ts    | ref    | account_id,day                           | account_id | 4       | delivera_deliveras.a.id          |    2 | Using where                     |
|  1 | SIMPLE      | cu    | ALL    | PRIMARY                                  | NULL       | NULL    | NULL                             |   34 | Using where; Using join buffer  |
+----+-------------+-------+--------+------------------------------------------+------------+---------+----------------------------------+------+---------------------------------+



Percona 5.6.14 Explain:
+----+-------------+-------+--------+--------------------------------------------------+------------+---------+-------------------------+------+------------------------------------------------+
| id | select_type | table | type   | possible_keys                                    | key        | key_len | ref                     | rows | Extra                                          |
+----+-------------+-------+--------+--------------------------------------------------+------------+---------+-------------------------+------+------------------------------------------------+
|  1 | SIMPLE      | cc    | ref    | cuisine_id,cat_id                                | cuisine_id | 4       | const                   |  213 | Using temporary; Using filesort                |
|  1 | SIMPLE      | c     | eq_ref | PRIMARY,delivery_id                              | PRIMARY    | 8       | perconadb.cc.cat_id     |    1 | Using where                                    |
|  1 | SIMPLE      | p     | ref    | PRIMARY,cat_id                                   | cat_id     | 5       | perconadb.c.id          |    3 | Using where; Using index                       |
|  1 | SIMPLE      | s     | ref    | product_id,account_id                            | product_id | 5       | perconadb.p.id          |    2 | Using where                                    |
|  1 | SIMPLE      | a     | eq_ref | PRIMARY,delivery_id,delivery_type,invoice,active | PRIMARY    | 8       | perconadb.s.account_id  |    1 | Using where                                    |
|  1 | SIMPLE      | re    | ref    | account_id,active,approved                       | account_id | 4       | perconadb.a.id          |    1 | Using where                                    |
|  1 | SIMPLE      | d     | eq_ref | PRIMARY,active                                   | PRIMARY    | 8       | perconadb.a.delivery_id |    1 | Using where                                    |
|  1 | SIMPLE      | ts    | ref    | account_id,day                                   | account_id | 4       | perconadb.a.id          |    3 | Using index condition; Using where             |
|  1 | SIMPLE      | cu    | ALL    | PRIMARY                                          | NULL       | NULL    | NULL                    |   32 | Range checked for each record (index map: 0x1) |
+----+-------------+-------+--------+--------------------------------------------------+------------+---------+-------------------------+------+------------------------------------------------+

Percona my.cnf:

[mysqld]

# GENERAL #
user                           = mysql
default_storage_engine         = MyISAM
sql-mode                       = NO_ENGINE_SUBSTITUTION
performance_schema             = OFF
back_log                       = 2000
thread_handling                = pool-of-threads
tmpdir                         = /dev/shm

# MyISAM #
key_buffer_size                = 256M
#myisam_recover                 = BACKUP,FORCE
myisam_sort_buffer_size        = 128M
group_concat_max_len           = 4096
max_seeks_for_key              = 1000
myisam_use_mmap                = 1

# SAFETY #
max_allowed_packet             = 1G
max_connect_errors             = 1000000
local-infile                   = 0

# CACHES AND LIMITS #
tmp_table_size                 = 256M
max_heap_table_size            = 256M
query_cache_type               = 1
query_cache_size               = 128M
query_cache_limit              = 6M
query_cache_min_res_unit       = 2K
max_connections                = 275
max_user_connections           = 250
thread_cache_size              = 1000
open_files_limit               = 50K
table_definition_cache         = 4K
table_open_cache               = 10K
join_buffer_size               = 4M
sort_buffer_size               = 4M
read_buffer_size               = 2M
read_rnd_buffer_size           = 2M

#optimizer_switch='mrr=on,mrr_cost_based=off,batched_key_access=on'

# INNODB #
sysdate_is_now                 = 1
innodb                         = FORCE
innodb_strict_mode             = 1
innodb_flush_method            = O_DIRECT
innodb_log_files_in_group      = 2
innodb_log_file_size           = 256M
innodb_flush_log_at_trx_commit = 2
innodb_file_per_table          = 1
innodb_buffer_pool_size        = 6G
innodb_read_io_threads         = 16
innodb_write_io_threads        = 16
innodb_io_capacity             = 10000
innodb_log_buffer_size         = 32M
innodb_file_format             = Barracuda
max_prepared_stmt_count        = 1048560
innodb_purge_threads           = 4
innodb_sched_priority_cleaner  = 39
innodb_adaptive_hash_index_partitions = 64

# Time-out's #
connect_timeout=30
interactive_timeout=360
wait_timeout=360

Erklären Sie nach Anwendung vorgeschlagener Indizes und Ausführen der bereitgestellten Abfrage durch DRAPP:

+----+-------------+------------+--------+----------------------------------------------------------------+----------------------------+---------+----------------------------+------+-----------------------------------------------------+
| id | select_type | table      | type   | possible_keys                                                  | key                        | key_len | ref                        | rows | Extra                                               |
+----+-------------+------------+--------+----------------------------------------------------------------+----------------------------+---------+----------------------------+------+-----------------------------------------------------+
|  1 | PRIMARY     | <derived2> | ALL    | NULL                                                           | NULL                       | NULL    | NULL                       | 3367 | Using temporary; Using filesort                     |
|  1 | PRIMARY     | a          | eq_ref | PRIMARY,delivery_id,delivery_type,invoice,active_delivery_type | PRIMARY                    | 8       | PreQuery.id                |    1 | Using where                                         |
|  1 | PRIMARY     | re         | ref    | account_id_approved_active                                     | account_id_approved_active | 6       | PreQuery.id,const,const    |    1 | Using where; Using index                            |
|  1 | PRIMARY     | d          | eq_ref | PRIMARY,id_active                                              | PRIMARY                    | 8       | perconadb.a.delivery_id    |    1 | Using where                                         |
|  1 | PRIMARY     | c          | ref    | PRIMARY,delivery_id                                            | delivery_id                | 9       | perconadb.a.delivery_id    |    7 | Using where; Using index                            |
|  1 | PRIMARY     | cc         | ref    | cuisine_id_cat_id                                              | cuisine_id_cat_id          | 8       | const,perconadb.c.id       |    1 | Using where; Using index                            |
|  1 | PRIMARY     | p          | ref    | PRIMARY,cat_id                                                 | cat_id                     | 5       | perconadb.c.id             |    3 | Using where; Using index                            |
|  1 | PRIMARY     | s          | ref    | account_id_product_id                                          | account_id_product_id      | 10      | PreQuery.id,perconadb.p.id |    1 | Using where; Using index                            |
|  1 | PRIMARY     | cu         | ALL    | PRIMARY                                                        | NULL                       | NULL    | NULL                       |   32 | Range checked for each record (index map: 0x1)      |
|  2 | DERIVED     | <derived3> | ALL    | NULL                                                           | NULL                       | NULL    | NULL                       | 3367 | Using temporary; Using filesort                     |
|  2 | DERIVED     | ts1        | ref    | account_id                                                     | account_id                 | 15      | JustAccounts.id,const      |    1 | Using index condition                               |
|  3 | DERIVED     | a          | range  | PRIMARY,delivery_id,delivery_type,invoice,active_delivery_type | active_delivery_type       | 2       | NULL                       |  481 | Using index condition; Using where; Using temporary |
|  3 | DERIVED     | d          | eq_ref | PRIMARY,id_active                                              | PRIMARY                    | 8       | perconadb.a.delivery_id    |    1 | Using where                                         |
|  3 | DERIVED     | c          | ref    | PRIMARY,delivery_id                                            | delivery_id                | 9       | perconadb.a.delivery_id    |    7 | Using where; Using index                            |
|  3 | DERIVED     | cc         | ref    | cuisine_id_cat_id                                              | cuisine_id_cat_id          | 8       | const,perconadb.c.id       |    1 | Using where; Using index                            |
+----+-------------+------------+--------+----------------------------------------------------------------+----------------------------+---------+----------------------------+------+-----------------------------------------------------+

Lösung

Ich werde meinen Hut in dies werfen und sehen, ob irgendetwas helfen kann ... zuerst, um den Abfragebedingungen zugute, würde ich zunächst die folgenden Indizes zu den jeweiligen Tabellen hinzufügen. Durch die mehreren Schlüsselspalten und nicht nur die Person können die Leistung erheblich unterstützen.

TABLE          INDEX
Accounts       (Active, DeliveryType)
Time_Schedule  (account_id, day)
Deliveries     (id, active)
cuisines2cats  (cuisine_id, cat_id )
Reviews        (account_id, approved, active )

ON the specs table, I didn't see the account_id as part of the table structure... however, if it SHOULD be there, I would have an index ON
Specs          (account_id, product_id )

Als nächstes haben Sie in Ihrer Abfrage einige Bedingungen, die auf aktivem und Liefertypstatus basieren. Dies sind numerische Felder. Sie sollten sie als nur 1 bzw. 2 verlassen, damit sie zum Vergleich nicht datentypkonvertiert werden müssen.

Probieren Sie zuerst nur die Indizes aus. Überprüfen Sie jede Leistungsverbesserung.

Nach unseren externen Bemühungen wollten nur die endgültige Arbeitsanfrage anbieten.

SELECT 
  FQ.*,
  COUNT(DISTINCT re.id) AS Reviews_Comm 
FROM
  (SELECT 
    a.*,
    IF(
      JustTimes.account_id IS NULL,
      "YES",
      "no"
    ) AS OPEN,
    d.cheap,
    d.name AS delivery_name,
    cu.name AS cuisine,
    IFNULL(a.sec_cuis, d.sec_cuis) AS SECONDARY_CUIS,
    d.ticket,
    IF(
      TIMESTAMPDIFF(SECOND, a.online, NOW()) <= 120,
      1,
      0
    ) AS SECONDARY_ONLINE 
  FROM
    cuisines2cats cc 
    JOIN cuisines AS cu 
      ON cc.cuisine_id = cu.id 
    JOIN cats c 
      ON cc.cat_id = c.id 
    JOIN products p 
      ON c.id = p.cat_id
      AND p.active = 1 
    JOIN specs s 
      ON p.id = s.product_id 
      AND s.active = 1 
    JOIN accounts a 
      ON s.account_id = a.id 
      AND c.delivery_id = a.delivery_id 
      AND a.Active = 1 
      AND a.Delivery_type IN (1, 2) 
    JOIN deliveries d 
      ON a.delivery_id = d.id 
      AND d.active = 1 
    LEFT JOIN 
      (SELECT DISTINCT 
        ts.account_id 
      FROM
        time_schedule ts 
      WHERE ts.day = 'mon' 
        AND ts.time_from IS NOT NULL 
        AND ts.time_to IS NOT NULL 
        AND (
          (ts.time_from = ts.time_to) 
          OR (
            ts.time_from <= NOW() 
            AND NOW() <= ts.time_to
          ) 
          OR (
            ts.time_to < ts.time_from 
            AND NOT (ts.time_to < NOW()) 
            AND NOW() < ts.time_from
          )
        )) AS JustTimes 
      ON a.id = JustTimes.account_id 
  WHERE cc.cuisine_id = 3 
    AND cu.id IN (a.def_cuis, d.def_cuis)) AS FQ 
  LEFT JOIN reviews re 
    ON FQ.id = re.account_id 
    AND re.approved = 1 
    AND re.active = 1 
GROUP BY FQ.id 
ORDER BY RAND();

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