mysql 主從複製如何跳過報錯

一、傳統binlog主從複製，跳過報錯方法

mysql> stop sl**e;

mysql> set global sql_sl**e_skip_counter = 1;

mysql> start sl**e;

mysql> show sl**e status \g

二、gtid主從複製，跳過報錯方法

mysql> stop sl**e； #先關閉sl**e複製；

mysql> change master to ...省略... #配置主從複製；

mysql>程式設計客棧 show sl**e status\g #檢視主從狀態；

發現報錯：

mysql> show sl**e status\g

*************************** 1. row ***************************

sl**e_io_state: waiting for master to send event

master_host: 172.19.195.212

master_user: master-sl**e

master_port: 3306

connect_retry: 60

master_log_file: mysql-bin.000021

read_master_log_pos: 194

relay_log_file: nginx-003-relay-bin.000048

relay_log_pos: 454

relay_master_log_file: mysql-bin.000016

sl**e_io_running: yes

sl**e_sql_running: no

replicate_do_db:

replicate_ignore_db:

replicate_do_twww.cppcns.comable:

replicate_ignore_table:

replicate_wild_do_table:

replicate_wild_ignore_table:

last_errno: 1007

last_error: error 'can't create database 'code'; database exists' on query. default database: 'code'. query: 'create database code'

skip_counter: 0

exec_master_log_pos: 8769118

relay_log_space: 3500

until_condition: none

until_log_file:

until_log_pos: 0

master_ssl_allowed: no

master_ssl_ca_file:

master_ssl_ca_path:

master_ssl_cert:

master_ssl_cipher:

master_ssl_key:

seconds_behind_master: null

master_ssl_verify_server_cert: no

last_io_errno: 0

last_io_error:

last_sql_errno: 1007

last_sql_error: error 'can't create database 'code'; database exists' on query. default database: 'code'. query: 'create database code'

replicate_ignore_server_ids:

master_server_id: 100

master_uuid: fea89052-11ef-11eb-b241-00163e00a190

master_info_file: /usr/local/mysql/data/master.info

sql_delay: 0

sql_remaining_delay: null

sl**e_sql_running_state:

master_retry_count: 86400

master_bind:

last_io_error_timestamp:

last_sql_error_timestamp: 201022 09:31:29

master_ssl_crl:

master_ssl_crlpath:

retrieved_gtid_set: fea89052-11ef-11eb-b241-00163e00a190:8-5617

executed_gtid_set: a56c9b04-11f1-11eb-a855-00163e128853:1-11224,

fea89052-11ef-11eb-b241-00163e00a190:1-5614

auto_position: 1

replicate_rewrite_db:

channel_name:

master_tls_version:

1 row in set (0.01 sec)

可以看到 sl**e_sql_running 為 no，表示執行取回的二進位制日誌**jyc出了問題；

在 last_error 中也可以看到大概的報錯；（因為我之前的操作，大概可以判斷出是因為主庫的二進位制日誌中有建立code庫的sql，而從庫上我已經建立了這個庫，應該是產生了衝突；）

解決方法：

1、如果清楚自己之前的操作，可以將從庫中產生衝突的庫刪除；

2、或者通過跳過gtid報錯的事務的方法

--- 通過 last_sql_errno 報錯編號查詢具體的報錯事務

mysql> select * from performance_schema.replication_applier_status_by_worker where last_error_number=1007\g

*************************** 1. row ***************************

channel_name:

worker_id: 0

thread_id: null

service_state: off

last_seen_transaction: fea89052-11ef-11eb-b24

last_error_number: 1007

last_error_message: error 'can't create database 'code'; database exists' on query. default database: 'code'. query: 'create database code'

last_error_timestamp: 2020-10-22 09:31:29

1 row in set (0.00 sec)

mysql> stop sl**e;