pt-online-schema-change 测试使用-包含生成测试数据
# 参考网址： https://www.2cto.com/database/201703/618280.html
一、简要描述
1、mysql创建测试表
drop table IF EXISTS t_user; CREATE TABLE `t_user` ( `id` bigint(20) NOT NULL AUTO_INCREMENT, `name` varchar(255) DEFAULT NULL, `age` tinyint(4) DEFAULT NULL, `create_time` datetime DEFAULT NULL, `update_time` datetime DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
2、生成测试数据
delimiter // DROP PROCEDURE IF EXISTS proc_batch_insert; CREATE PROCEDURE proc_batch_insert() BEGIN DECLARE pre_name BIGINT; DECLARE ageVal INT; DECLARE i INT; SET pre_name=187635267; SET ageVal=100; SET i=1; WHILE i <= 10000000 DO INSERT INTO t_user(`name`,age,create_time,update_time) VALUES(CONCAT(pre_name,'@qq.com'),(ageVal+1)%30,NOW(),NOW()); SET pre_name=pre_name+100; SET i=i+1; END WHILE; END // delimiter ; call proc_batch_insert();
1、打印-增加列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add info varchar(500) comment '个人简历'" --print
1、执行-增加列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add info varchar(500) comment '个人简历'" --execute
# 2、打印-删除列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop info" --print
2、执行-删除列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop info" --execute
3、打印-增加索引
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop index idx_name" --print
3、执行-增加索引
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add index idx_name(name(12))" --execute
4、打印-删除索引
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop index idx_name" --print
4、执行-删除索引
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop index idx_name" --execute
5、打印-修改列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="modify name varchar(20) not null default '' comment '用户名'" --print
5、执行-修改列
pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="modify name varchar(20) not null default '' comment '用户名'" --execute
二、详细操作记录
1、打印-增加列
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add info varchar(500) comment '个人简历'" --print Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Exiting without altering `db222`.`t_user` because neither --dry-run nor --execute was specified. Please read the tool's documentation carefully before using this tool. [root@my3-224 ~]#
1、执行-增加列
[root@my3-224 opt]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add info varchar(500) comment '个人简历'" --execute No slaves found. See --recursion-method if host my1-222 has slaves. Not checking slave lag because no slaves were found and --check-slave-lag was not specified. Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Altering `db222`.`t_user`... Creating new table... Created new table db222._t_user_new OK. Altering new table... Altered `db222`.`_t_user_new` OK. 2018-05-18T19:32:53 Creating triggers... 2018-05-18T19:32:54 Created triggers OK. 2018-05-18T19:32:54 Copying approximately 898443 rows... 2018-05-18T19:33:13 Copied rows OK. 2018-05-18T19:33:13 Analyzing new table... 2018-05-18T19:33:13 Swapping tables... 2018-05-18T19:33:14 Swapped original and new tables OK. 2018-05-18T19:33:14 Dropping old table... 2018-05-18T19:33:14 Dropped old table `db222`.`_t_user_old` OK. 2018-05-18T19:33:14 Dropping triggers... 2018-05-18T19:33:14 Dropped triggers OK. Successfully altered `db222`.`t_user`. [root@my3-224 opt]#
2、打印-删除列
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop info" --print Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Exiting without altering `db222`.`t_user` because neither --dry-run nor --execute was specified. Please read the tool's documentation carefully before using this tool. [root@my3-224 ~]#
2、执行-删除列
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop info" --execute No slaves found. See --recursion-method if host my1-222 has slaves. Not checking slave lag because no slaves were found and --check-slave-lag was not specified. Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Altering `db222`.`t_user`... Creating new table... Created new table db222._t_user_new OK. Altering new table... Altered `db222`.`_t_user_new` OK. 2018-05-18T19:44:19 Creating triggers... 2018-05-18T19:44:20 Created triggers OK. 2018-05-18T19:44:20 Copying approximately 996723 rows... 2018-05-18T19:44:38 Copied rows OK. 2018-05-18T19:44:38 Analyzing new table... 2018-05-18T19:44:39 Swapping tables... 2018-05-18T19:44:39 Swapped original and new tables OK. 2018-05-18T19:44:39 Dropping old table... 2018-05-18T19:44:39 Dropped old table `db222`.`_t_user_old` OK. 2018-05-18T19:44:39 Dropping triggers... 2018-05-18T19:44:39 Dropped triggers OK. Successfully altered `db222`.`t_user`. [root@my3-224 ~]#
3、打印-增加索引
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add index idx_name(name(12))" --print Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Exiting without altering `db222`.`t_user` because neither --dry-run nor --execute was specified. Please read the tool's documentation carefully before using this tool. [root@my3-224 ~]#
3、执行-增加索引
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="add index idx_name(name(12))" --execute No slaves found. See --recursion-method if host my1-222 has slaves. Not checking slave lag because no slaves were found and --check-slave-lag was not specified. Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Altering `db222`.`t_user`... Creating new table... Created new table db222._t_user_new OK. Altering new table... Altered `db222`.`_t_user_new` OK. 2018-05-18T19:49:24 Creating triggers... 2018-05-18T19:49:24 Created triggers OK. 2018-05-18T19:49:24 Copying approximately 996723 rows... Copying `db222`.`t_user`: 52% 00:27 remain 2018-05-18T19:50:20 Copied rows OK. 2018-05-18T19:50:20 Analyzing new table... 2018-05-18T19:50:20 Swapping tables... 2018-05-18T19:50:20 Swapped original and new tables OK. 2018-05-18T19:50:20 Dropping old table... 2018-05-18T19:50:20 Dropped old table `db222`.`_t_user_old` OK. 2018-05-18T19:50:20 Dropping triggers... 2018-05-18T19:50:20 Dropped triggers OK. Successfully altered `db222`.`t_user`. [root@my3-224 ~]#
4、打印-删除索引
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop index idx_name" --print Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Exiting without altering `db222`.`t_user` because neither --dry-run nor --execute was specified. Please read the tool's documentation carefully before using this tool. [root@my3-224 ~]#
4、执行-删除索引
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="drop index idx_name" --execute No slaves found. See --recursion-method if host my1-222 has slaves. Not checking slave lag because no slaves were found and --check-slave-lag was not specified. Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Altering `db222`.`t_user`... Creating new table... Created new table db222._t_user_new OK. Altering new table... Altered `db222`.`_t_user_new` OK. 2018-05-18T21:42:45 Creating triggers... 2018-05-18T21:42:45 Created triggers OK. 2018-05-18T21:42:45 Copying approximately 996723 rows... Copying `db222`.`t_user`: 61% 00:19 remain 2018-05-18T21:43:35 Copied rows OK. 2018-05-18T21:43:35 Analyzing new table... 2018-05-18T21:43:35 Swapping tables... 2018-05-18T21:43:35 Swapped original and new tables OK. 2018-05-18T21:43:35 Dropping old table... 2018-05-18T21:43:35 Dropped old table `db222`.`_t_user_old` OK. 2018-05-18T21:43:35 Dropping triggers... 2018-05-18T21:43:35 Dropped triggers OK. Successfully altered `db222`.`t_user`. [root@my3-224 ~]#
5、打印-修改列
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="modify name varchar(20) not null default '' comment '用户名'" --print Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Exiting without altering `db222`.`t_user` because neither --dry-run nor --execute was specified. Please read the tool's documentation carefully before using this tool. [root@my3-224 ~]#
5、执行-修改列
[root@my3-224 ~]# pt-online-schema-change --host=192.168.65.128 --user=davie --password=davie123 --port=3306 D=db222,t=t_user --charset=utf8mb4 --nocheck-replication-filters --chunk-size=10000 --sleep=0 --alter="modify name varchar(20) not null default '' comment '用户名'" --execute No slaves found. See --recursion-method if host my1-222 has slaves. Not checking slave lag because no slaves were found and --check-slave-lag was not specified. Operation, tries, wait: analyze_table, 10, 1 copy_rows, 10, 0.25 create_triggers, 10, 1 drop_triggers, 10, 1 swap_tables, 10, 1 update_foreign_keys, 10, 1 Altering `db222`.`t_user`... Creating new table... Created new table db222._t_user_new OK. Altering new table... Altered `db222`.`_t_user_new` OK. 2018-05-18T20:07:14 Creating triggers... 2018-05-18T20:07:14 Created triggers OK. 2018-05-18T20:07:14 Copying approximately 996723 rows... 2018-05-18T20:07:38 Copied rows OK. 2018-05-18T20:07:38 Analyzing new table... 2018-05-18T20:07:38 Swapping tables... 2018-05-18T20:07:38 Swapped original and new tables OK. 2018-05-18T20:07:38 Dropping old table... 2018-05-18T20:07:39 Dropped old table `db222`.`_t_user_old` OK. 2018-05-18T20:07:39 Dropping triggers... 2018-05-18T20:07:39 Dropped triggers OK. Successfully altered `db222`.`t_user`. [root@my3-224 ~]#