主从复制架构直接转换MGR(manual)
环境信息
| IP | port | role | info |
|---|---|---|---|
| 192.168.188.81 | 3316 | node1 | master |
| 192.168.188.82 | 3316 | node2 | slave1 |
| 192.168.188.83 | 3316 | node3 | slave2 |
- CentOS Linux release 7.6.1810 (Core)
- MySQL Ver 8.0.19 for linux-glibc2.12 on x86_64 (MySQL Community Server - GPL)
- MySQL Router Ver 8.0.20 for Linux on x86_64 (MySQL Community - GPL)
- MySQL Shell Ver 8.0.20 for Linux on x86_64 - for MySQL 8.0.20 (MySQL Community Server (GPL))
软件位置
在三个节点上部署好MySQL、MySQL Router、MySQL Shell。
搭建复制环境，并开启增强半同步
- 所有节点配置
root@localhost [(none)]>set global super_read_only=0;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>create user 'rep'@'192.168.188.%' identified by 'rep';
Query OK, 0 rows affected (0.02 sec)
root@localhost [(none)]>grant replication slave on *.* to 'rep'@'192.168.188.%';
Query OK, 0 rows affected (0.02 sec)
root@localhost [(none)]>install plugin rpl_semi_sync_slave soname 'semisync_slave.so';
Query OK, 0 rows affected (0.01 sec)
root@localhost [(none)]>install plugin rpl_semi_sync_master soname 'semisync_master.so';
Query OK, 0 rows affected (0.02 sec)
- master节点配置
root@localhost [(none)]>set global rpl_semi_sync_master_enabled=ON;
Query OK, 0 rows affected (0.01 sec)
root@localhost [(none)]>show global variables like '%semi%';
+-------------------------------------------+------------+
| Variable_name | Value |
+-------------------------------------------+------------+
| rpl_semi_sync_master_enabled | ON |
| rpl_semi_sync_master_timeout | 10000 |
| rpl_semi_sync_master_trace_level | 32 |
| rpl_semi_sync_master_wait_for_slave_count | 1 |
| rpl_semi_sync_master_wait_no_slave | ON |
| rpl_semi_sync_master_wait_point | AFTER_SYNC |
| rpl_semi_sync_slave_enabled | OFF |
| rpl_semi_sync_slave_trace_level | 32 |
+-------------------------------------------+------------+
8 rows in set (0.00 sec)
root@localhost [(none)]>reset master;
Query OK, 0 rows affected (0.04 sec)
- slave节点配置
root@localhost [(none)]>set global rpl_semi_sync_slave_enabled=ON;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>change master to master_host='192.168.188.81',master_port=3316,master_user='rep',master_password='rep',master_auto_position=1,get_master_public_key=1;
Query OK, 0 rows affected, 2 warnings (0.04 sec)
root@localhost [(none)]>reset master;
Query OK, 0 rows affected (0.04 sec)
- slave 启动复制
root@localhost [(none)]>start slave;
Query OK, 0 rows affected (0.03 sec)
root@localhost [(none)]>show slave status \G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.188.81
Master_User: rep
Master_Port: 3316
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 155
Relay_Log_File: ms82-relay-bin.000002
Relay_Log_Pos: 369
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...
...
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
Master_Retry_Count: 86400
...
...
1 row in set (0.00 sec)
- master查看半同步状态
root@localhost [(none)]>show global status like '%semi%';
+--------------------------------------------+-------+
| Variable_name | Value |
+--------------------------------------------+-------+
| Rpl_semi_sync_master_clients | 2 |
| Rpl_semi_sync_master_net_avg_wait_time | 0 |
| Rpl_semi_sync_master_net_wait_time | 0 |
| Rpl_semi_sync_master_net_waits | 0 |
| Rpl_semi_sync_master_no_times | 0 |
| Rpl_semi_sync_master_no_tx | 0 |
| Rpl_semi_sync_master_status | ON |
| Rpl_semi_sync_master_timefunc_failures | 0 |
| Rpl_semi_sync_master_tx_avg_wait_time | 0 |
| Rpl_semi_sync_master_tx_wait_time | 0 |
| Rpl_semi_sync_master_tx_waits | 0 |
| Rpl_semi_sync_master_wait_pos_backtraverse | 0 |
| Rpl_semi_sync_master_wait_sessions | 0 |
| Rpl_semi_sync_master_yes_tx | 0 |
| Rpl_semi_sync_slave_status | OFF |
+--------------------------------------------+-------+
15 rows in set (0.00 sec)
模拟业务，使用脚本产生事务
- 建表
root@localhost [(none)]>create database kk;
Query OK, 1 row affected (0.03 sec)
root@localhost [(none)]>use kk
Database changed
root@localhost [kk]>create table k1 ( id int auto_increment primary key , dtl varchar(20) default 'abc');
Query OK, 0 rows affected (0.05 sec)
- 开启一个session，运行脚本产生事务
[root@ms81 ~]# while :; do echo "insert into kk.k1(dtl) values('duangduangduang');" | mysql -S /data/mysql/mysql3316/tmp/mysql.sock; sleep 1;done
手动配置MGR
配置Master，将Master转为MGR
- 配置参数
root@localhost [kk]>install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.03 sec)
root@localhost [kk]>set persist binlog_checksum=NONE;
Query OK, 0 rows affected (0.02 sec)
root@localhost [kk]>set persist transaction_write_set_extraction=XXHASH64;
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>select uuid();
+--------------------------------------+
| uuid() |
+--------------------------------------+
| 3260d70c-966e-11ea-ba8b-0242c0a8bc51 |
+--------------------------------------+
1 row in set (0.00 sec)
root@localhost [kk]>set persist group_replication_group_name='3260d70c-966e-11ea-ba8b-0242c0a8bc51';
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>set persist group_replication_local_address="192.168.188.81:13306";
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>set persist group_replication_group_seeds="192.168.188.81:13306,192.168.188.82:13306,192.168.188.83:13306";
Query OK, 0 rows affected (0.00 sec)
#也要加上这个，具体见文末
SET persist group_replication_recovery_get_public_key = 1;
root@localhost [kk]>set persist group_replication_bootstrap_group=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>set persist group_replication_start_on_boot=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>set global group_replication_bootstrap_group=on;
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>start group_replication;
Query OK, 0 rows affected (3.36 sec)
root@localhost [kk]>set global group_replication_bootstrap_group=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [kk]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | 29ea8b7f-966d-11ea-937c-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
1 row in set (0.01 sec)
- 此时发现发生事务的session出现了提醒
[root@ms81 ~]# while :; do echo "insert into kk.k1(dtl) values('duangduangduang');" | mysql -S /data/mysql/mysql3316/tmp/mysql.sock; sleep 1;done
ERROR 1290 (HY000) at line 1: The MySQL server is running with the --super-read-only option so it cannot execute this statement
ERROR 1290 (HY000) at line 1: The MySQL server is running with the --super-read-only option so it cannot execute this statement
ERROR 1290 (HY000) at line 1: The MySQL server is running with the --super-read-only option so it cannot execute this statement
去配置slave1 ，转换为MGR
root@localhost [(none)]>install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.01 sec)
root@localhost [(none)]>set persist binlog_checksum=NONE;
Query OK, 0 rows affected (0.03 sec)
root@localhost [(none)]>set persist transaction_write_set_extraction=XXHASH64;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_group_name='3260d70c-966e-11ea-ba8b-0242c0a8bc51';
Query OK, 0 rows affected (0.01 sec)
root@localhost [(none)]>set persist group_replication_local_address="192.168.188.82:13306";
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_group_seeds="192.168.188.81:13306,192.168.188.82:13306,192.168.188.83:13306";
Query OK, 0 rows affected (0.00 sec)
#也要加上这个，具体见文末
SET persist group_replication_recovery_get_public_key = 1;
root@localhost [(none)]>set persist group_replication_bootstrap_group=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_start_on_boot=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>start group_replication;
ERROR 3092 (HY000): The server is not configured properly to be an active member of the group. Please see more details on error log.
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | 2cbcfaa5-966d-11ea-8707-0242c0a8bc52 | ms82 | 3316 | OFFLINE |
| |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
1 row in set (0.01 sec)
root@localhost [(none)]>stop group_replication;
Query OK, 0 rows affected (4.78 sec)
root@localhost [(none)]>change master to master_user='rep',master_password='rep' for channel 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.03 sec)
root@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (3.88 sec)
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | 29ea8b7f-966d-11ea-937c-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
| group_replication_applier | 2cbcfaa5-966d-11ea-8707-0242c0a8bc52 | ms82 | 3316 | ONLINE | SECONDARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
2 rows in set (0.00 sec)
如法炮制，改造slave2
在改造之前，我突然想到，现有的架构成为了： node1(master)\node2(slave1) 为MGR， node3(slave2)是node1(master)的从库，
那么检查一下当前三个节点的情况：
node1:
root@localhost [kk]>select count(*) from kk.k1;
+----------+
| count(*) |
+----------+
| 456 |
+----------+
1 row in set (0.00 sec)
root@localhost [kk]>show master status ;
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| mysql-bin.000002 | 154142 | | | 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111 |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
node2:
root@localhost [(none)]>select count(*) from kk.k1;
+----------+
| count(*) |
+----------+
| 456 |
+----------+
1 row in set (0.00 sec)
root@localhost [(none)]>show master status ;
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| mysql-bin.000002 | 109956 | | | 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111 |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
##注意，node2的 IO、SQL THREAD没有运行，但是 Executed_Gtid_Set 是跟进的噢
root@localhost [(none)]>show slave status\G
*************************** 1. row ***************************
Slave_IO_State:
Master_Host: 192.168.188.81
Master_User: rep
Master_Port: 3316
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 74606
Relay_Log_File: ms82-relay-bin.000004
Relay_Log_Pos: 74820
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: No
Slave_SQL_Running: No
...
...
Master_Server_Id: 813316
Master_UUID: f78a6902-9679-11ea-b136-0242c0a8bc51
Master_Info_File: mysql.slave_master_info
...
Retrieved_Gtid_Set: 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-121,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111
Executed_Gtid_Set: 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111
Auto_Position: 1
...
1 row in set (0.00 sec)
node3:
root@localhost [(none)]>select count(*) from kk.k1;
+----------+
| count(*) |
+----------+
| 456 |
+----------+
1 row in set (0.00 sec)
root@localhost [(none)]>show master status ;
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| File | Position | Binlog_Do_DB | Binlog_Ignore_DB | Executed_Gtid_Set |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
| mysql-bin.000001 | 169340 | | | 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111 |
+------------------+----------+--------------+------------------+----------------------------------------------------------------------------------------+
1 row in set (0.00 sec)
root@localhost [(none)]>show slave status \G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.188.81
Master_User: rep
Master_Port: 3316
Connect_Retry: 60
Master_Log_File: mysql-bin.000002
Read_Master_Log_Pos: 154142
Relay_Log_File: ms83-relay-bin.000004
Relay_Log_Pos: 154356
Relay_Master_Log_File: mysql-bin.000002
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
...
...
Master_UUID: f78a6902-9679-11ea-b136-0242c0a8bc51
Master_Info_File: mysql.slave_master_info
...
Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
...
Retrieved_Gtid_Set: 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111
Executed_Gtid_Set: 3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-350,
f78a6902-9679-11ea-b136-0242c0a8bc51:1-111
Auto_Position: 1
...
1 row in set (0.00 sec)
- 转换slave2
root@localhost [(none)]>install plugin group_replication soname 'group_replication.so';
Query OK, 0 rows affected (0.02 sec)
root@localhost [(none)]>set persist binlog_checksum=NONE;
Query OK, 0 rows affected (0.03 sec)
root@localhost [(none)]>set persist transaction_write_set_extraction=XXHASH64;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_group_name='3260d70c-966e-11ea-ba8b-0242c0a8bc51';
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_local_address="192.168.188.83:13306";
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_group_seeds="192.168.188.81:13306,192.168.188.82:13306,192.168.188.83:13306";
group_rQuery OK, 0 rows affected (0.00 sec)
#也要加上这个，具体见文末
SET persist group_replication_recovery_get_public_key = 1;
root@localhost [(none)]>set persist group_replication_bootstrap_group=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>set persist group_replication_start_on_boot=off;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>stop slave;
Query OK, 0 rows affected (0.01 sec)
root@localhost [(none)]>change master to master_user='rep',master_password='rep' for channel 'group_replication_recovery';
Query OK, 0 rows affected, 2 warnings (0.05 sec)
plicatioroot@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (4.64 sec)
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | 29ea8b7f-966d-11ea-937c-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
| group_replication_applier | 2cbcfaa5-966d-11ea-8707-0242c0a8bc52 | ms82 | 3316 | ONLINE | SECONDARY | 8.0.19 |
| group_replication_applier | 2db7ddf1-966d-11ea-a7b3-0242c0a8bc53 | ms83 | 3316 | ONLINE | SECONDARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
3 rows in set (0.00 sec)
root@localhost [(none)]>
一些tips
参数文件！
手动转换为MGR与通过MySQL Shell转换的最大区别是，后者会自动通过set persist 方式将变更写到mysqld-auto.cnf文件中，而手动操作需要注意这一点。
上述实验完全没编辑my.cnf ，如果使用set global，在MGR三节点再次冷启动的时候，MGR的配置参数就没了，无法启动MGR。
解决方法是：
- 在配置过程中用set persist 来代替set global ， 持久化保存配置
- 如果已经手快重启了全部节点清空了临时配置，那么可以使用set persist再次设定一遍，设定好后理论上可以直接生效，启动GR。
sha2_password魔咒
- 我通过set global 配置后，重启了一下节点，再进行set persist持久化配置后,启动MGR后， master顺利online ，但是在做node2加入GR时，一直处于RECOVERING
- 检查errlog后发现：
2020-05-15T14:35:46.869802+08:00 21 [System] [MY-010597] [Repl] 'CHANGE MASTER TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state master_host='ms81', master_port= 3316, master_log_file='', master_log_pos= 4, master_bind=''. New state master_host='ms81', master_port= 3316, master_log_file='', master_log_pos= 4, master_bind=''.
2020-05-15T14:35:46.906422+08:00 28 [Warning] [MY-010897] [Repl] Storing MySQL user name or password information in the master info repository is not secure and is therefore not recommended. Please consider using the USER and PASSWORD connection options for START SLAVE; see the 'START SLAVE Syntax' in the MySQL Manual for more information.
2020-05-15T14:35:46.907876+08:00 28 [ERROR] [MY-010584] [Repl] Slave I/O for channel 'group_replication_recovery': error connecting to master 'rep@ms81:3316' - retry-time: 60 retries: 1 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection. Error_code: MY-002061
2020-05-15T14:35:46.923832+08:00 21 [ERROR] [MY-011582] [Repl] Plugin group_replication reported: 'There was an error when connecting to the donor server. Please check that group_replication_recovery channel credentials and all MEMBER_HOST column values of performance_schema.replication_group_members table are correct and DNS resolvable.'
2020-05-15T14:35:46.923887+08:00 21 [ERROR] [MY-011583] [Repl] Plugin group_replication reported: 'For details please check performance_schema.replication_connection_status table and error log messages of Slave I/O for channel group_replication_recovery.'
- 检查 performance_schema.replication_connection_status
root@localhost [(none)]>select * from performance_schema.replication_connection_status\G
...
...
...
*************************** 3. row ***************************
CHANNEL_NAME: group_replication_recovery
GROUP_NAME:
SOURCE_UUID:
THREAD_ID: NULL
SERVICE_STATE: OFF
COUNT_RECEIVED_HEARTBEATS: 0
LAST_HEARTBEAT_TIMESTAMP: 0000-00-00 00:00:00.000000
RECEIVED_TRANSACTION_SET:
LAST_ERROR_NUMBER: 2061
LAST_ERROR_MESSAGE: error connecting to master 'rep@ms81:3316' - retry-time: 60 retries: 1 message: Authentication plugin 'caching_sha2_password' reported error: Authentication requires secure connection.
...
...
3 rows in set (0.01 sec)
退化到recovering状态，遇到连接问题，尝试在change master上增加：
root@localhost [(none)]>change master to master_user='rep',master_password='rep',get_master_public_key=1 for channel 'group_replication_recovery';
ERROR 3139 (HY000): CHANGE MASTER with the given parameters cannot be performed on channel 'group_replication_recovery'.
这就尴尬了。
- 临时解决方法
[root@ms82 ~]# mysql -h 192.168.188.81 -P 3316 -urep -prep
rep@192.168.188.81 [(none)]>exit
[root@ms82 ~]# mysql -S /data/mysql/mysql3316/tmp/mysql.sock
root@localhost [(none)]>stop group_replication;
Query OK, 0 rows affected (4.75 sec)
root@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (5.75 sec)
root@localhost [(none)]>select * from performance_schema.replication_connection_status\G
*************************** 1. row ***************************
CHANNEL_NAME:
GROUP_NAME:
SOURCE_UUID: 29ea8b7f-966d-11ea-937c-0242c0a8bc51
THREAD_ID: NULL
SERVICE_STATE: OFF
COUNT_RECEIVED_HEARTBEATS: 0
LAST_HEARTBEAT_TIMESTAMP: 0000-00-00 00:00:00.000000
RECEIVED_TRANSACTION_SET: 29ea8b7f-966d-11ea-937c-0242c0a8bc51:1-530,
3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-343
LAST_ERROR_NUMBER: 0
LAST_ERROR_MESSAGE:
LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION:
LAST_QUEUED_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_START_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_END_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION:
QUEUEING_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_START_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
*************************** 2. row ***************************
CHANNEL_NAME: group_replication_applier
GROUP_NAME: 3260d70c-966e-11ea-ba8b-0242c0a8bc51
SOURCE_UUID: 3260d70c-966e-11ea-ba8b-0242c0a8bc51
THREAD_ID: NULL
SERVICE_STATE: ON
COUNT_RECEIVED_HEARTBEATS: 0
LAST_HEARTBEAT_TIMESTAMP: 0000-00-00 00:00:00.000000
RECEIVED_TRANSACTION_SET: 29ea8b7f-966d-11ea-937c-0242c0a8bc51:1-530,
3260d70c-966e-11ea-ba8b-0242c0a8bc51:1-781:787
LAST_ERROR_NUMBER: 0
LAST_ERROR_MESSAGE:
LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION: 3260d70c-966e-11ea-ba8b-0242c0a8bc51:787
LAST_QUEUED_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_START_QUEUE_TIMESTAMP: 2020-05-15 14:38:54.721851
LAST_QUEUED_TRANSACTION_END_QUEUE_TIMESTAMP: 2020-05-15 14:38:54.721874
QUEUEING_TRANSACTION:
QUEUEING_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_START_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
*************************** 3. row ***************************
CHANNEL_NAME: group_replication_recovery
GROUP_NAME:
SOURCE_UUID:
THREAD_ID: NULL
SERVICE_STATE: OFF
COUNT_RECEIVED_HEARTBEATS: 0
LAST_HEARTBEAT_TIMESTAMP: 0000-00-00 00:00:00.000000
RECEIVED_TRANSACTION_SET:
LAST_ERROR_NUMBER: 0
LAST_ERROR_MESSAGE:
LAST_ERROR_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION:
LAST_QUEUED_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_START_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
LAST_QUEUED_TRANSACTION_END_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION:
QUEUEING_TRANSACTION_ORIGINAL_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_IMMEDIATE_COMMIT_TIMESTAMP: 0000-00-00 00:00:00.000000
QUEUEING_TRANSACTION_START_QUEUE_TIMESTAMP: 0000-00-00 00:00:00.000000
3 rows in set (0.00 sec)
- 正规军解决方法
SET GLOBAL group_replication_recovery_use_ssl = ON;
SET GLOBAL group_replication_recovery_get_public_key = 1; #已合并到操作中
SET GLOBAL group_replication_recovery_public_key_path = 'path to RSA public key file';
MGR冷启动
- 将三节点全部关掉
mysql > shutdown ;
- 启动node1
[root@ms81 ~]# mysqld --defaults-file=/data/mysql/mysql3316/my3316.cnf &
[root@ms81 ~]# mysql -S /data/mysql/mysql3316/tmp/mysql.sock
root@localhost [(none)]>set global group_replication_bootstrap_group=ON;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (3.16 sec)
root@localhost [(none)]>set global group_replication_bootstrap_group=OFF;
Query OK, 0 rows affected (0.00 sec)
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | f78a6902-9679-11ea-b136-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
1 rows in set (0.01 sec)
- 启动node2
[root@ms82 ~]# mysqld --defaults-file=/data/mysql/mysql3316/my3316.cnf &
[root@ms82 ~]# mysql -S /data/mysql/mysql3316/tmp/mysql.sock
root@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (3.45 sec)
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | f78a6902-9679-11ea-b136-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
| group_replication_applier | faaab4c3-9679-11ea-896f-0242c0a8bc52 | ms82 | 3316 | ONLINE | SECONDARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
2 rows in set (0.00 sec)
-同理，启动node3
[root@ms83 ~]# mysqld --defaults-file=/data/mysql/mysql3316/my3316.cnf &
[root@ms83 ~]# mysql -S /data/mysql/mysql3316/tmp/mysql.sock
root@localhost [(none)]>start group_replication;
Query OK, 0 rows affected (3.45 sec)
root@localhost [(none)]>select * from performance_schema.replication_group_members;
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | MEMBER_ROLE | MEMBER_VERSION |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
| group_replication_applier | f78a6902-9679-11ea-b136-0242c0a8bc51 | ms81 | 3316 | ONLINE | PRIMARY | 8.0.19 |
| group_replication_applier | faaab4c3-9679-11ea-896f-0242c0a8bc52 | ms82 | 3316 | ONLINE | SECONDARY | 8.0.19 |
| group_replication_applier | fb358b40-9679-11ea-94cb-0242c0a8bc53 | ms83 | 3316 | ONLINE | SECONDARY | 8.0.19 |
+---------------------------+--------------------------------------+-------------+-------------+--------------+-------------+----------------+
3 rows in set (0.01 sec)
主从复制架构直接转换MGR(manual)的更多相关文章
- MySQL 数据库主从复制架构
前文<MySQL 数据库事务与复制>分析了 MySQL 复制过程中如何保证 binlog 和事务数据之间的一致性,本文进一步分析引入从库后需要保证主从的数据一致性需要考虑哪些方面. 原生复 ...
- 项目实战7—Mysql实现企业级数据库主从复制架构实战
Mysql实现企业级数据库主从复制架构实战 环境背景:公司规模已经形成,用户数据已成为公司的核心命脉,一次老王一不小心把数据库文件删除,通过mysqldump备份策略恢复用了两个小时,在这两小时中,公 ...
- NoSQL初探之人人都爱Redis：（4）Redis主从复制架构初步探索
一.主从复制架构简介 通过前面几篇的介绍中,我们都是在单机上使用Redis进行相关的实践操作,从本篇起,我们将初步探索一下Redis的集群,而集群中最经典的架构便是主从复制架构.那么,我们首先来了解一 ...
- 【转】 NoSQL初探之人人都爱Redis：（4）Redis主从复制架构初步探索
一.主从复制架构简介 通过前面几篇的介绍中,我们都是在单机上使用Redis进行相关的实践操作,从本篇起,我们将初步探索一下Redis的集群,而集群中最经典的架构便是主从复制架构.那么,我们首先来了解一 ...
- Mysql实现企业级数据库主从复制架构实战
场景 公司规模已经形成,用户数据已成为公司的核心命脉,一次老王一不小心把数据库文件删除,通过mysqldump备份策略恢复用了两个小时,在这两小时中,公司业务中断,损失100万,老王做出深刻反省,公司 ...
- (8) MySQL主从复制架构使用方法
一. 单个数据库服务器的缺点 数据库服务器存在单点问题 数据库服务器资源无法满足增长的读写请求 高峰时数据库连接数经常超过上限 二. 如何解决单点问题 增加额外的数据库服务器,组建数据库集群 同一集群 ...
- 在线建立或重做mysql主从复制架构方法（传统模式和GTID模式）【转】
mysql主从复制架构,是mysql数据库主要特色之一,绝大多数公司都有用到. 而GTID模式是基于事务的复制模式的意思,发展到现在也是越来越多人用. 以前很多文章,介绍搭建mysql主从复制架构,是 ...
- Linux mariadb(Mysql)的主从复制架构
mysql的主从复制架构,需要准备两台机器,并且可以通信,安装好2个mysql,保持版本一致性 mysql -v 查看数据库版本 1.准备主库的配置文件 /etc/my.cnf 写入开启主库的参数[ ...
- MySQL主从复制架构使用方法
原文:MySQL主从复制架构使用方法 一. 单个数据库服务器的缺点 数据库服务器存在单点问题 数据库服务器资源无法满足增长的读写请求 高峰时数据库连接数经常超过上限 二. 如何解决单点问题 增加额外的 ...
随机推荐
- Java中5种List的去重方法及它们的效率对比，你用对了吗？
01.使用两个for循环实现List去重(有序) /**使用两个for循环实现List去重(有序) * * @param list * */ public static ...
- 《Machine Learning in Action》—— 小朋友，快来玩啊，决策树呦
<Machine Learning in Action>-- 小朋友,快来玩啊,决策树呦 在上篇文章中,<Machine Learning in Action>-- Taoye ...
- 你了解JWT吗？
1. 什么是JWT JWT简称 JSON Web Token,也就是通过 JSON 形式作为 Web 应用中的令牌,用于在各方之间安全地将信息作为 JSON 对象传输.在数据传输过程中还可以完成数据加 ...
- Java 添加、读取、删除Excel中的图表趋势线
本文以Java示例介绍如何在Excel中添加趋势线,以及读取趋势线公式.通过文中的方法可支持添加6种不同类型的趋势线,包括Linear.Exponential.Logarithmic.Moving A ...
- jsp跳转不成功，服务器也不报错，登录页面点击登录没反应，代码如下，请韭菜园子的工友给予指导！
登录后.. 根本跳不到这个检查页面.. 这个登录成功页面也就无从谈起了!
- 转化dataframe中一组序列为时间序列的方法-to_datetime()的最新用法
一.to_datetime()的最新用法: hs300_hf['date'] = pd.to_datetime(hs300_hf['date']) hs300_hf.set_index('date', ...
- EasyRecovery——信息时代的“后悔药”
前几日,小编在豆瓣潜水的时候看到这么一个帖子,说是一对小情侣吵架,女方一气之下把男方的博士论文和资料全删了,求一个办法让男友消气. 站在吃瓜的角度,小编和广大群众看法一致,希望两人直接分手,放男方一条 ...
- Ayoa：麻雀虽小、五脏俱全的思维导图工具
Ayoa是一款简单好用的思维导图软件,在PC端可以使用Ayoa网页版,也就是不用下载即可使用,十分轻便省力.但麻雀虽小,五脏可十分俱全,同类的其他大型软件有的东西它可一点不少,甚至还有更多的特殊功能. ...
- 下载器Folx扩展程序支持哪些浏览器
Folx使用多线程的下载方式大大提升了下载的速度,可以完全替代浏览器自带的下载工具,使下载文件的管理更加简单高效.但是,必须给浏览器安装Folx扩展程序,才能使用Folx下载页面链接. Folx在偏好 ...
- 实用简易的U盘修复工具推荐
如果我们的U盘出现可以读取,但不能打开,或是提示格式化的情况,那可能是U盘硬件出现了问题.U盘内部部件损坏就只能维修了,如果是u盘出现逻辑错误,常用的解决方法就是到网上下载一个u盘修复工具,对u盘进行 ...