質問

I am trying to insert 2x 700 000 records into an InnoDB table and it is in my opinion rather slow.

I have tried several things and I am not sure what is the best way to achieve the most efficient way of inserting.

Create table sql:

DROP TABLE IF EXISTS `booking_daily_analysis`;
CREATE TABLE IF NOT EXISTS `booking_daily_analysis` (
  `id` INT NOT NULL AUTO_INCREMENT,
  `booking_id` INT NULL,
  `action_id` INT NOT NULL,
  `creative_id` INT NULL,
  `position_id` INT NULL,
  `profile_id` INT NULL,
  `start` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `end` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `hits` INT NOT NULL DEFAULT 0,
  `uniqueHits` INT NOT NULL DEFAULT 0 COMMENT 'contacts van vroeger',
  PRIMARY KEY (`id`,`action_id`)
  #INDEX `booking_id_idx` (`booking_id` ASC),
  #FOREIGN KEY (`booking_id`) REFERENCES `booking` (`id`) ON DELETE SET NULL ON UPDATE CASCADE,
  #INDEX `creative_id_idx` (`creative_id` ASC),
  #FOREIGN KEY (`creative_id`) REFERENCES `creative` (`id`) ON DELETE SET NULL ON UPDATE CASCADE,
  #INDEX `position_id_idx` (`position_id` ASC),
  #FOREIGN KEY (`position_id`) REFERENCES `position` (`id`) ON DELETE SET NULL ON UPDATE CASCADE,
  #INDEX `action_id_idx` (`action_id` ASC),
  #FOREIGN KEY (`action_id`) REFERENCES `action` (`id`) ON DELETE NO ACTION ON UPDATE CASCADE,  
  #INDEX `profile_id_idx` (`profile_id` ASC),
  #FOREIGN KEY (`profile_id`) REFERENCES `profile` (`id`) ON DELETE SET NULL ON UPDATE CASCADE
) ENGINE=InnoDB DEFAULT CHARACTER SET=utf8;

As you can see a lot of indexes and foreign keys (innoDb needs an index for each foreign key) but indexes slow the inserting way down, so I am trying to add them after my insert through an alter statement:

START TRANSACTION;
alter table `booking_daily_analysis` add index `booking_id_idx` (`booking_id` ASC), add constraint `fk_booking_id` foreign key (`booking_id`) REFERENCES `booking` (`id`) on delete set null on update cascade;
alter table `booking_daily_analysis` add index `creative_id_idx` (`creative_id` ASC), add constraint `fk_creative_id` foreign key (`creative_id`) references `creative` (`id`) on delete set null on update cascade;
alter table `booking_daily_analysis` add index `position_id_idx` (`position_id` ASC), add constraint `fk_position_id` foreign key (`position_id`) references `position` (`id`) on delete set null on update cascade;
alter table `booking_daily_analysis` add index `action_id_idx` (`action_id` ASC), add constraint `fk_action_id` foreign key (`action_id`) references `action` (`id`) on delete set null on update cascade;
alter table `booking_daily_analysis` add index `profile_id_idx` (`profile_id` ASC), add constraint `fk_profile_id` foreign key (`profile_id`) references `profile` (`id`) on delete set null on update cascade;
COMMIT;

Not sure if transaction is necessary.

At the top of my script I have specified these options:

SET foreign_key_checks=0;
SET unique_checks=0;

The bottom:

SET unique_checks = 1;
SET foreign_key_checks = 1;

And the 2x 700 000 insert statement (only 2 lines for this)

START TRANSACTION;
insert into nrc.booking_daily_analysis (id, action_id, start, end, hits, uniqueHits, position_id, booking_id, creative_id, profile_id)
select id, 1, start, end, impressions, contacts, position_id, booking_id, creative_id, new_profile_id from adhese_nrc.temp_ad_slot_ids;
COMMIT;

START TRANSACTION;
-- Insert clicks for click action (click action is 2)
insert into nrc.booking_daily_analysis (id, action_id, start, end, hits, uniqueHits, position_id, booking_id, creative_id, profile_id)
select id, 2, start, end, clicks, 0, position_id, booking_id, creative_id, new_profile_id from adhese_nrc.temp_ad_slot_ids;
COMMIT;

As you can see, the only difference in the insert is the action ID (1 -> 2).

So I was wondering, is this the way to go or am I missing something here?

Lastest output from MySQL workbench:

14:32:13    START TRANSACTION   0 row(s) affected   0.000 sec

14:32:13    FIRST INSERT 717718 row(s) affected Records: 717718  @ 11.263 sec

14:32:24    COMMIT  0 row(s) affected   0.020 sec
14:32:24    START TRANSACTION   0 row(s) affected   0.000 sec

14:32:24    SECOND INSERT   717718 row(s) affected Records: 717718 @ 21.268 sec

14:32:46    COMMIT  0 row(s) affected   0.011 sec
14:32:46    START TRANSACTION   0 row(s) affected   0.000 sec

14:32:46    add index `booking_id_idx`  1435436 row(s) affected Records: 1435436 @ 39.393 sec
14:33:25    add index `creative_id_idx  1435436 row(s) affected Records: 1435436  @ 68.801 sec
14:34:34    add index `position_id_idx` 1435436 row(s) affected Records: 1435436  Duplicates: 0  Warnings: 0 @ 142.877 sec
14:36:57    add index `action_id_idx` 1435436 row(s) affected Records: 1435436  Duplicates: 0  Warnings: 0 @ 162.160 sec
14:40:00    add index `profile_id_idx` 1435436 row(s) affected Records: 1435436  Duplicates: 0  Warnings: 0 @ 763.309 sec
役に立ちましたか?

解決

This manual page also suggests changing the innodb_autoinc_lock_mode.

If you do not need the feature, disable binary logging.

Increasing the size of some InnoDB buffers could help too (the innodb_buffer_pool_size in particular).

I believe using a transaction is not desirable in this case. If a small number of consecutive changes need to be applied within the same transaction, these changes may be optimized by being consolidated in one single write. In your case, I believe you will only load your redo log uselessly.

This leads me to another suggestion: try inserting a smaller number of rows at a time, like this:

INSERT INTO destination
SELECT * FROM source LIMIT 0, 10000;

INSERT INTO destination
SELECT * FROM source LIMIT 10000, 10000; -- and so on

Finally, if you have a lot of memory available, you may want to manually load the whole data into a temporary memory table, then insert into your destination from this memory table (possibly in small batches):

CREATE TEMPORARY TABLE destination_tmp LIKE source;
ALTER destination_tmp ENGIN=MEMORY;
INSERT INTO destination_tmp SELECT * FROM source;
INSERT INTO destination SELECT * FROM destination_tmp;

Make sure to have a large enough value for max_heap_table_size.

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