J'ai une table nommée contacts qui a près de 1,2 million d'enregistrements que nous utilisons MyIsam moteur chaque fois que nous interrogeons cette table mysql pend vers le bas alors maintenant nous essayons nos mains avec le moteur Innodb de sorte que si elle ralentit, mais ne se bloque pas pour d'autresmysql numéro de performance
nous voulons donc faire rapidement avec MyISAM, nous avons essayé de nombreux indices sur cette table, mais il va vers le bas et bloque le système
Que faut-il faire pour le rendre plus rapide et il ne devrait pas se bloquer le système
Ceci est le tableau:
CREATE TABLE `contacts` (
`id` varchar(36) NOT NULL,
`deleted` tinyint(1) NOT NULL default '0',
`date_entered` datetime NOT NULL default '0000-00-00 00:00:00',
`date_modified` datetime NOT NULL default '0000-00-00 00:00:00',
`modified_user_id` varchar(36) default NULL,
`assigned_user_id` varchar(36) default NULL,
`created_by` varchar(36) default NULL,
`team_id` varchar(36) default NULL,
`salutation` varchar(5) default NULL,
`first_name` varchar(100) default '',
`last_name` varchar(100) default '',
`username` varchar(25) default '',
`lead_source` varchar(100) default NULL,
`title` varchar(50) default NULL,
`department` varchar(100) default NULL,
`reports_to_id` varchar(36) default NULL,
`birthdate` date default NULL,
`do_not_call` char(3) default '0',
`phone_home` varchar(25) default NULL,
`phone_mobile` varchar(25) default NULL,
`phone_work` varchar(25) default '',
`phone_other` varchar(25) default NULL,
`phone_fax` varchar(25) default '',
`email1` varchar(100) default '',
`email2` varchar(100) default NULL,
`assistant` varchar(75) default NULL,
`assistant_phone` varchar(25) default NULL,
`email_opt_out` char(3) default 'off',
`primary_address_street` varchar(150) default NULL,
`primary_address_city` varchar(100) default NULL,
`primary_address_state` varchar(100) default NULL,
`primary_address_postalcode` varchar(20) default NULL,
`primary_address_country` varchar(100) default NULL,
`alt_address_street` varchar(150) default NULL,
`alt_address_city` varchar(100) default NULL,
`alt_address_state` varchar(100) default NULL,
`alt_address_postalcode` varchar(20) default NULL,
`alt_address_country` varchar(100) default NULL,
`description` text,
`portal_name` varchar(255) default NULL,
`portal_active` tinyint(1) NOT NULL default '0',
`portal_app` varchar(255) default NULL,
`salesforceid` varchar(36) default NULL,
`phone_direct` varchar(25) default NULL,
`invalid_email` tinyint(1) default '0',
`parent_is_lead` char(3) default 'no',
`advisory_board_member` varchar(25) default NULL,
`direct_marketing` varchar(25) default NULL,
`efx_id` varchar(36) default NULL,
`fax_opt_out` char(3) default 'off',
`ppc_keyword` varchar(50) default NULL,
`status` varchar(25) default NULL,
`web_form` varchar(50) default NULL,
`efx_export_date` datetime default NULL,
`bmtn` varchar(225) default '',
`employee_location` varchar(50) default NULL,
`pronunciation` varchar(250) default NULL,
`duplicate_of` varchar(36) default NULL,
`job_category` varchar(50) default NULL,
`last_ska_upload_key` varchar(50) default NULL,
`persid` varchar(36) default NULL,
`last_web_upload_key` varchar(50) default NULL,
`last_webinar_upload_key` varchar(50) default NULL,
`primary_address_latitude` float default NULL,
`primary_address_longitude` float default NULL,
`first_name_soundex` varchar(30) default NULL,
`last_name_soundex` varchar(30) default NULL,
`primary_address_street_soundex` varchar(30) default NULL,
`campaign_id` varchar(36) default NULL,
`portal_password` varchar(32) default NULL,
`pss_branch` varchar(40) default NULL,
`pss_id` int(12) default NULL,
`source_detail` varchar(100) default NULL,
`source` varchar(100) default NULL,
`pss_region` varchar(30) default NULL,
`source_added` datetime default NULL,
`terminated_user` char(3) default 'off',
`invite_opt_out` char(3) default 'off',
`newsletter_opt_out` char(3) default 'off',
`stream_opt_out` char(3) default 'off',
PRIMARY KEY (`id`),
KEY `idx_contacts_del_last` (`deleted`,`last_name`),
KEY `idx_cont_del_reports` (`deleted`,`reports_to_id`,`last_name`),
KEY `idx_contact_del_team` (`deleted`,`team_id`),
KEY `idx_contact_salesforceid` (`salesforceid`),
KEY `idx_contacts_username` (`username`),
KEY `idx_email_opt_out` (`email_opt_out`),
KEY `idx_primary_address_street` (`primary_address_street`),
KEY `idx_primary_address_city` (`primary_address_city`),
KEY `idx_primary_address_state` (`primary_address_state`),
KEY `idx_primary_address_postalcode` (`primary_address_postalcode`),
KEY `idx_primary_address_country` (`primary_address_country`),
KEY `idx_modified_user_id` (`modified_user_id`),
KEY `idx_assigned_user_id` (`assigned_user_id`),
KEY `idx_created_by` (`created_by`),
KEY `idx_team_id` (`team_id`),
KEY `idx_reports_to_id` (`reports_to_id`),
KEY `idx_contacts_efx_id` (`efx_id`),
KEY `idx_contacts_title1` (`title`,`deleted`),
KEY `idx_contacts_email1` (`email1`),
KEY `idx_contacts_email2` (`email2`),
KEY `idx_contacts_job_category` (`job_category`),
KEY `idx_contacts_first_name_sdx` (`first_name_soundex`),
KEY `idx_contacts_primary_street_sdx` (`primary_address_street_soundex`),
KEY `idx_contacts_last_name_sdx` (`last_name_soundex`),
KEY `idx_contacts_portal_name` (`portal_name`),
KEY `idx_contacts_portal_active` (`portal_active`),
KEY `idx_contacts_del_last_first` (`deleted`,`last_name`,`first_name`),
KEY `idx_contacts_del_first` (`deleted`,`first_name`),
KEY `idx_pss_id` (`pss_id`),
KEY `idx_phone_work_last_name_first_name_deleted` (`phone_work`,`last_name`,`first_name`,`deleted`),
KEY `idx_phone_work_last_name_first_name_deleted_sdx` (`phone_work`,`last_name_soundex`,`first_name_soundex`,`deleted`),
KEY `idx_email1_last_name_first_name_deleted` (`email1`,`last_name`,`first_name`,`deleted`),
KEY `idx_email1_last_name_first_name_deleted_sdx` (`email1`,`last_name_soundex`,`first_name_soundex`,`deleted`),
KEY `idx_phone_fax_last_name_first_name_deleted` (`phone_fax`,`last_name`,`first_name`,`deleted`),
KEY `idx_phone_fax_last_name_first_name_deleted_sdx` (`phone_fax`,`last_name_soundex`,`first_name_soundex`,`deleted`),
KEY `idx_phone_work_last_name_deleted` (`phone_work`,`last_name`,`deleted`),
KEY `idx_phone_work_last_name_deleted_sdx` (`phone_work`,`last_name_soundex`,`deleted`),
KEY `idx_email1_last_name_deleted` (`email1`,`last_name`,`deleted`),
KEY `idx_email1_last_name_deleted_sdx` (`email1`,`last_name_soundex`,`deleted`),
KEY `idx_phone_fax_last_name_deleted` (`phone_fax`,`last_name`,`deleted`),
KEY `idx_phone_fax_last_name_deleted_sdx` (`phone_fax`,`last_name_soundex`,`deleted`),
KEY `idx_email1_first_name_deleted` (`email1`,`first_name`,`deleted`),
KEY `idx_email1_first_name_deleted_sdx` (`email1`,`first_name_soundex`,`deleted`),
KEY `idx_phone_fax_first_name_deleted` (`phone_fax`,`first_name`,`deleted`),
KEY `idx_phone_fax_first_name_deleted_sdx` (`phone_fax`,`first_name_soundex`,`deleted`),
KEY `idx_email1_deleted` (`email1`,`deleted`),
KEY `idx_last_name_first_name_deleted_sdx` (`last_name_soundex`,`first_name_soundex`,`deleted`),
KEY `idx_phone_mobile_deleted` (`phone_mobile`,`deleted`,`id`),
KEY `idx_first_name_bmtn` (`first_name`,`bmtn`),
KEY `idx_first_name_bmtn_email1` (`first_name`,`bmtn`,`email1`),
KEY `idx_bmtn_email1` (`bmtn`,`email1`),
KEY `idx_deleted` (`deleted`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;
-
SELECT acc.id, acc.name, con_reports_to.first_name, con_reports_to.last_name
from contacts
left join accounts_contacts a_c on a_c.contact_id = '9802f40d-78bb-8dd4-dfaa-43f1064ccd5e' and a_c.deleted=0
left join accounts acc on a_c.account_id = acc.id and acc.deleted=0
left join contacts con_reports_to on con_reports_to.id = contacts.reports_to_id
where contacts.id = '9802f40d-78bb-8dd4-dfaa-43f1064ccd5e'
écrire des requêtes efficaces et déterminer les bons index? –
Pourriez-vous décrire votre configuration matérielle ... –
Linux serveur de boîte avec 4 Go de RAM 60 Go partition pour DB mysql 5.1 et Apache 1,33 – maxjackie