Heim >Datenbank >MySQL-Tutorial >Detaillierte Einführung in den Aufbau- und Bereitstellungsprozess der MySQL-Gruppenreplikation [Multi-Primary-Modus] (Bilder und Texte)
Detaillierte Einführung in den Aufbau- und Bereitstellungsprozess der MySQL-Gruppenreplikation [Multi-Primary-Modus] (Bilder und Texte)
- 黄舟Original
- 2017-03-22 13:37:233000Durchsuche
1, ÜberMySQLGruppenreplikation
Gruppenbasierte Replikation ist eine Technik, die bei Fehler- tolerante Systeme. Die Replikationsgruppe besteht aus mehreren Servern (Knoten), die miteinander kommunizieren können.
In der Kommunikationsschicht implementiert Groupreplication eine Reihe von Mechanismen: wie die atomare Nachrichtenzustellung und die vollständige Reihenfolge der Nachrichten. Diese atomaren und abstrakten Mechanismen bieten eine starke Unterstützung für die Implementierung fortschrittlicherer Datenbankreplikationslösungen.
MySQL Group Replication implementiert ein vollständig aktualisiertes Multi-Master-Replikationsprotokoll, das auf diesen Technologien und Konzepten basiert.
Kurz gesagt ist eine Replikationsgruppe eine Gruppe von Knoten. Jeder Knoten kann Transaktionen unabhängig ausführen, und Lese- und Schreibtransaktionen werden vor dem Festschreiben mit anderen Knoten in der Gruppe koordiniert.
Wenn eine Transaktion zur Übermittlung bereit ist, wird sie daher automatisch atomar innerhalb der Gruppe gesendet, um andere Knoten darüber zu informieren, welche Inhalte geändert/welche Transaktionen durchgeführt wurden.
Diese atomare Broadcast-Methode hält diese Transaktion auf jedem Knoten in der gleichen Reihenfolge.
Das bedeutet, dass jeder Knoten das gleiche Transaktionsprotokoll in der gleichen Reihenfolge empfängt, sodass jeder Knoten diese Transaktionsprotokolle in der gleichen Reihenfolge wiedergibt und letztendlich die gesamte Gruppe vollständig konsistent bleibt Status .
Es kann jedoch zu Ressourcenkonflikten zwischen Transaktionen kommen, die auf verschiedenen Knoten ausgeführt werden. Dieses Phänomen tritt leicht bei zwei verschiedenen gleichzeitigen Transaktionen auf.
Angenommen, es gibt zwei gleichzeitige Transaktionen auf verschiedenen Knoten, die dieselbe Datenzeile aktualisieren, dann kommt es zu einem Ressourcenkonflikt.
Angesichts dieser Situation stellt GroupReplication fest, dass die zuerst übermittelte Transaktion eine gültige Transaktion ist und in der gesamten Gruppe wiederholt wird. Die später übermittelte Transaktion wird direkt unterbrochen oder zurückgesetzt und schließlich verworfen.
Daher handelt es sich auch um ein Shared-Nothing-Replikationsschema, und jeder Knoten speichert eine vollständige Kopie der Daten. Sehen Sie sich das folgende Bild 01.png an, das den konkreten Arbeitsablauf beschreibt und prägnant mit anderen Lösungen verglichen werden kann. Dieses Replikationsschema ähnelt in gewissem Maße der Replikationsmethode der Datenbank-Statusmaschine (DBSM).
2, installieren Sie MySQL 5.7.17
Offizieller Download, aber die URL-Adresse 5.7.17 ist möglicherweise noch lange nicht gültig, sodass die von Ihnen benötigte Version möglicherweise nicht hier auf Baidu Cloud Disk verfügbar ist Version ist 5.7.17, die jederzeit verwendet werden kann.
Richten Sie die /etc/hosts-Zuordnung auf den drei Datenbankservern wie folgt ein:
192.168.121.71 db1 192.168.121.111 db2 192.168.121.24 db3
Installierter Datenbankserver:
|
Port |
Datenverzeichnis | Server- id | ||||||||||||||||
3317 |
|
12001 192.168.121.111 (db2) | 3317 | /data/mysql /data | 12002 | ||||||||||||||
| 192.168.121.24 ( db3) | 3317 | /data/mysql/data td> | 12003 |
在db1/db2/db3上建立复制账号：
mysql> SET SQL_LOG_BIN=0; Query OK, 0 rows affected (0.00 sec) mysql> mysql> GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.168.%' IDENTIFIED BY 'rlpbright_1927@ys'; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> mysql> SET SQL_LOG_BIN=1; Query OK, 0 rows affected (0.00 sec) mysql>
4，安装group replication插件
在db1、db2、db3上依次安装group replication插件
mysql> INSTALL PLUGIN group_replication SONAME 'group_replication.so'; Query OK, 0 rows affected (0.01 sec) mysql>
plugin-load=group_replication或者直接在配置文件my.cnf中配置：
查看group replication组件
mysql> show plugins; +----------------------------+----------+--------------------+----------------------+---------+ | Name | Status | Type | Library | License | +----------------------------+----------+--------------------+----------------------+---------+ | binlog | ACTIVE | STORAGE ENGINE | NULL | GPL | | mysql_native_password | ACTIVE | AUTHENTICATION | NULL | GPL | | sha256_password | ACTIVE | AUTHENTICATION | NULL | GPL | | MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL | | PERFORMANCE_SCHEMA | ACTIVE | STORAGE ENGINE | NULL | GPL | | InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL | | INNODB_TRX | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_LOCKS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_LOCK_WAITS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMP | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMP_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMPMEM | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMPMEM_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMP_PER_INDEX | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_CMP_PER_INDEX_RESET | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_BUFFER_PAGE | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_BUFFER_PAGE_LRU | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_BUFFER_POOL_STATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_TEMP_TABLE_INFO | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_METRICS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_DEFAULT_STOPWORD | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_DELETED | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_BEING_DELETED | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_CONFIG | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_INDEX_CACHE | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_FT_INDEX_TABLE | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_TABLES | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_TABLESTATS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_INDEXES | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_COLUMNS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_FIELDS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_FOREIGN | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_FOREIGN_COLS | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_TABLESPACES | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_DATAFILES | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | INNODB_SYS_VIRTUAL | ACTIVE | INFORMATION SCHEMA | NULL | GPL | | MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL | | MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL | | CSV | ACTIVE | STORAGE ENGINE | NULL | GPL | | BLACKHOLE | ACTIVE | STORAGE ENGINE | NULL | GPL | | partition | ACTIVE | STORAGE ENGINE | NULL | GPL | | FEDERATED | DISABLED | STORAGE ENGINE | NULL | GPL | | ARCHIVE | ACTIVE | STORAGE ENGINE | NULL | GPL | | ngram | ACTIVE | FTPARSER | NULL | GPL | | group_replication | ACTIVE | GROUP REPLICATION | group_replication.so | GPL | +----------------------------+----------+--------------------+----------------------+---------+ 45 rows in set (0.00 sec) mysql>
看到有group_replication ACTIVE，表示插group_replication插件安装成功。
5，配置group replication参数
确保binlog_format是row格式。
mysql> show variables like 'binlog_format'; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | binlog_format | ROW | +---------------+-------+ 1 row in set (0.00 sec) mysql>
两种配置方式，在线添加 OR 配置文件
（1） db1上的my.cnf配置： # replication config server_id=12001 gtid_mode=ON enforce_gtid_consistency=ON master_info_repository=TABLE relay_log_info_repository=TABLE binlog_checksum=NONE log_slave_updates=ON log_bin=binlog binlog_format=ROW # group replication config transaction_write_set_extraction=XXHASH64 loose-group_replication_group_name="e4668cea-d7ca-11e6-86b5-18a99b76310d" loose-group_replication_start_on_boot=off loose-group_replication_local_address= "db1:24901" loose-group_replication_group_seeds= "db1:24901,db2:24902,db3:24903" loose-group_replication_bootstrap_group= off loose-group_replication_single_primary_mode=FALSE loose-group_replication_enforce_update_everywhere_checks= TRUE （2）db2上的my.cnf配置： # replication config server_id=12002 gtid_mode=ON enforce_gtid_consistency=ON master_info_repository=TABLE relay_log_info_repository=TABLE binlog_checksum=NONE log_slave_updates=ON log_bin=binlog binlog_format=ROW # group replication config transaction_write_set_extraction=XXHASH64 loose-group_replication_group_name="e4668cea-d7ca-11e6-86b5-18a99b76310d" loose-group_replication_start_on_boot=off loose-group_replication_local_address= "db2:24902" loose-group_replication_group_seeds= "db1:24901,db2:24902,db3:24903" loose-group_replication_bootstrap_group= off loose-group_replication_single_primary_mode=FALSE loose-group_replication_enforce_update_everywhere_checks= TRUE （3）db3上的my.cnf配置： # replication config server_id=12003 gtid_mode=ON enforce_gtid_consistency=ON master_info_repository=TABLE relay_log_info_repository=TABLE binlog_checksum=NONE log_slave_updates=ON log_bin=binlog binlog_format=ROW # group replication config transaction_write_set_extraction=XXHASH64 loose-group_replication_group_name="e4668cea-d7ca-11e6-86b5-18a99b76310d" loose-group_replication_start_on_boot=off loose-group_replication_local_address= "db3:24903" loose-group_replication_group_seeds= "db1:24901,db2:24902,db3:24903" loose-group_replication_bootstrap_group= off loose-group_replication_single_primary_mode=FALSE loose-group_replication_enforce_update_everywhere_checks= TRUE
配置完后，重启3个db上的mysql服务
Db1启动：
[root@hch_test_dbm2_121_71 ~]# service mysqld start Starting MySQL.. [确定] [root@hch_test_dbm2_121_71 ~]#
Db2启动：
[root@bpe_service ~]# service mysqld start Starting MySQL.. [确定] [root@bpe_service ~]#
Db3启动：
[root@hch_test_web_1_24 ~]# service mysqld start Starting MySQL.. [确定] [root@hch_test_web_1_24 ~]#
6，启动mgr集群
构建之前，保证db1、db2、db3的read_only是关闭的
开始构建group replication集群，通常操作命令
mysql> CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='rlpbright_1927@ys' FOR CHANNEL 'group_replication_recovery'; Query OK, 0 rows affected, 2 warnings (0.02 sec) mysql>
db1上建立基本主库master库：
# 设置group_replication_bootstrap_group为ON是为了标示以后加入集群的服务器以这台服务器为基准，以后加入的就不需要设置。
mysql> SET GLOBAL group_replication_bootstrap_group = ON; Query OK, 0 rows affected (0.00 sec) mysql> START GROUP_REPLICATION; Query OK, 0 rows affected (1.03 sec) mysql> SET GLOBAL group_replication_bootstrap_group=OFF; Query OK, 0 rows affected (0.00 sec) mysql> mysql> SELECT * FROM performance_schema.replication_group_members; +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | group_replication_applier | 3381d155-d7d1-11e6-94f7-b8ca3af6e36c | hch_test_dbm2_121_71 | 3317 | ONLINE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ 1 row in set (0.00 sec) mysql>
Db2上启动group_replication：
Db2上mysql命令行上执行启动：
mysql> START GROUP_REPLICATION; Query OK, 0 rows affected (1.02 sec) mysql>
db1后台error log日志显示，看到db2加入进来了，进了group：
2017-01-11T07:51:40.623093Z 0 [Note] Plugin group_replication reported: 'Marking group replication view change with view_id 14841207424144277:8' 2017-01-11T07:51:40.650962Z 21 [Note] Start binlog_dump to master_thread_id(21) slave_server(12002), pos(, 4) 2017-01-11T07:51:40.687441Z 0 [Note] Plugin group_replication reported: 'The member with address bpe_service:3317 was declared online within the replication group' 2017-01-11T07:52:40.651481Z 21 [Note] Aborted connection 21 to db: 'unconnected' user: 'repl' host: '192.168.121.111' (failed on flush_net())
再去master库db1上，查看group_replication成员，会有db2的显示，看到MEMBER_STATE都是ONLINE，表示都是MASTER：
mysql> SELECT * FROM performance_schema.replication_group_members; +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | group_replication_applier | 3381d155-d7d1-11e6-94f7-b8ca3af6e36c | hch_test_dbm2_121_71 | 3317 | ONLINE | | group_replication_applier | 84dba8ff-d7d2-11e6-aa9a-18a99b76310d | bpe_service | 3317 | ONLINE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ 2 rows in set (0.00 sec) mysql>
db3上启动group_replication：
Db3命令行上执行：
mysql> set global group_replication_allow_local_disjoint_gtids_join=ON; Query OK, 0 rows affected (0.00 sec) mysql> start group_replication; Query OK, 0 rows affected (1.99 sec) mysql>
再去master库db1上，查看group_replication成员，会有db3的显示，而且已经是ONLINE了
mysql> SELECT * FROM performance_schema.replication_group_members; +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | group_replication_applier | 21750571-d7d3-11e6-91e2-18a99b763071 | hch_test_web_1_24 | 3317 | ONLINE | | group_replication_applier | 3381d155-d7d1-11e6-94f7-b8ca3af6e36c | hch_test_dbm2_121_71 | 3317 | ONLINE | | group_replication_applier | 84dba8ff-d7d2-11e6-aa9a-18a99b76310d | bpe_service | 3317 | ONLINE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ 3 rows in set (0.00 sec) mysql>
db1上后台error log显示：
2017-01-11T08:13:05.972276Z 0 [Note] Plugin group_replication reported: 'getstart group_id 8da193f6' 2017-01-11T08:13:08.146144Z 0 [Note] Plugin group_replication reported: 'Marking group replication view change with view_id 14841207424144277:11' 2017-01-11T08:13:08.174808Z 25 [Note] Start binlog_dump to master_thread_id(25) slave_server(12003), pos(, 4) 2017-01-11T08:13:08.218338Z 0 [Note] Plugin group_replication reported: 'The member with address hch_test_web_1_24:3317 was declared online within the replication group' 2017-01-11T08:14:08.175308Z 25 [Note] Aborted connection 25 to db: 'unconnected' user: 'repl' host: '192.168.121.24' (failed on flush_net())
最后查看集群状态：
mysql> SELECT * FROM performance_schema.replication_group_members; +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | group_replication_applier | 3d872c2e-d670-11e6-ac1f-b8ca3af6e36c | hch_test_dbm2_121_71 | 3317 | ONLINE | | group_replication_applier | ef8ac2de-d671-11e6-9ba4-18a99b763071 | hch_test_web_1_24 | 3317 | ONLINE | | group_replication_applier | fdf2b02e-d66f-11e6-98a8-18a99b76310d | bpe_service | 3317 | ONLINE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ 3 rows in set (0.00 sec) mysql>
7，验证集群复制功能
测试，在master库db1上建立测试库db1，测试表t1，录入一条数据
mysql> create database db1; Query OK, 1 row affected (0.00 sec) mysql> create table db1.t1(id int,cn varchar(32)); Query OK, 0 rows affected (0.02 sec) mysql> mysql> insert into t1(id,cn)values( 1,'a'); ERROR 3098 (HY000): The table does not comply with the requirements by an external plugin. mysql> mysql> # 这里原因是group_replaction环境下面，表必须有主键不然不允许往里insert值。所以修改表t1，将id字段设置程主键即可。 mysql> alter table t1 modify id int primary key; Query OK, 0 rows affected (0.02 sec) Records: 0 Duplicates: 0 Warnings: 0 |
然后在db2上执行insert操作，则成功
然后再db3上执行insert操作，则成功
在db1、db2、db3分部录入的数据，再分表去db1、db2、db3上查看t1表的数据，数据都已经复制同步过来了，已经实现了group里面多成员member多处写操作。
8 添加新的成员
简要步骤：
（1） 安装mysql实例
（2） 准备my.cnf
#replication server_id=12001 # 这个是随着新服务器的添加会变化 gtid_mode=ON enforce_gtid_consistency=ON master_info_repository=TABLE relay_log_info_repository=TABLE binlog_checksum=NONE log_slave_updates=ON log_bin=binlog binlog_format=ROW #group replication transaction_write_set_extraction=XXHASH64 loose-group_replication_group_name="e4668cea-d7ca-11e6-86b5-18a99b76310d" loose-group_replication_start_on_boot=off loose-group_replication_local_address= "db1:24901" # 这个是随着新服务器的添加会变化 loose-group_replication_group_seeds= "db1:24901,db2:24902,db3:24903"# 这个是随着新服务器的添加会变化 loose-group_replication_bootstrap_group= off loose-group_replication_single_primary_mode=FALSE loose-group_replication_enforce_update_everywhere_checks= TRUE
|
（3） 启动mysql实例，service mysqld start;
（4） 开启group replication
SET SQL_LOG_BIN=0; # 在建立复制账号的时候，不需要进入binlog日志 GRANT REPLICATION SLAVE ON *.* TO 'repl'@'192.168.%' IDENTIFIED BY 'rlpbright_1927@ys'; SET SQL_LOG_BIN=1; CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='rlpbright_1927@ys' FOR CHANNEL 'group_replication_recovery'; START group_replication; SELECT * FROM performance_schema.replication_group_members; |
（5）验证组成员，SELECT * FROM performance_schema.replication_group_members;
9，管理操作命令
查看group状态信息：SELECT * FROM performance_schema.replication_group_members;
查询replication协议的其它数据：select * from performance_schema.replication_group_member_stats\G
|
查看后台进程2个：
[root@hch_test_dbm2_121_71 soft]# netstat -ntpl|grep mysql tcp 0 0 0.0.0.0:24901 0.0.0.0:* LISTEN 3665/mysqld tcp 0 0 :::3317 :::* LISTEN 3665/mysqld [root@hch_test_dbm2_121_71 soft]#
|
组复制成员状态表：select * from performance_schema.replication_group_member_stats;查看的是当前的状态：
performance_schema.replication_applier_status
10，问题记录
10.1问题记录一
Db2的mysql窗口报错： mysql> 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. mysql> db2的error log信息如下： 2017-01-11T07:57:41.161360Z 0 [ERROR] Plugin group_replication reported: 'This member has more executed transactions than those present in the group. Local transactions: 84dba8ff-d7d2-11e6-aa9a-18a99b76310d:1 > Group transactions: 3381d155-d7d1-11e6-94f7-b8ca3af6e36c:1, e4668cea-d7ca-11e6-86b5-18a99b76310d:1-3' 2017-01-11T07:57:41.161430Z 0 [ERROR] Plugin group_replication reported: 'The member contains transactions not present in the group. The member will now exit the group.' 2017-01-11T07:57:41.161445Z 0 [Note] Plugin group_replication reported: 'To force this member into the group you can use the group_replication_allow_local_disjoint_gtids_join option' 2017-01-11T07:57:41.161589Z 3 [Note] Plugin group_replication reported: 'Going to wait for view modification' 2017-01-11T07:57:41.162126Z 0 [Note] Plugin group_replication reported: 'getstart group_id 8da193f6' 2017-01-11T07:57:44.508236Z 0 [Note] Plugin group_replication reported: 'state 4330 action xa_terminate' 2017-01-11T07:57:44.508429Z 0 [Note] Plugin group_replication reported: 'new state x_start' 2017-01-11T07:57:44.508561Z 0 [Note] Plugin group_replication reported: 'state 4257 action xa_exit' 2017-01-11T07:57:44.508720Z 0 [Note] Plugin group_replication reported: 'Exiting xcom thread' 2017-01-11T07:57:44.508746Z 0 [Note] Plugin group_replication reported: 'new state x_start' 2017-01-11T07:57:49.549137Z 3 [Note] Plugin group_replication reported: 'auto_increment_increment is reset to 1' 2017-01-11T07:57:49.549192Z 3 [Note] Plugin group_replication reported: 'auto_increment_offset is reset to 1' 2017-01-11T07:57:49.549472Z 23 [Note] Error reading relay log event for channel 'group_replication_applier': slave SQL thread was killed 2017-01-11T07:57:49.550037Z 20 [Note] Plugin group_replication reported: 'The group replication applier thread was killed' 【解决办法】设置group_replication_allow_local_disjoint_gtids_join为ON mysql> set global group_replication_allow_local_disjoint_gtids_join=ON; Query OK, 0 rows affected (0.00 sec) mysql> START GROUP_REPLICATION; Query OK, 0 rows affected (5.52 sec) mysql> |
10.2问题记录二
Sql界面显示状态为ERROR：
Errorlog显示：
2017-01-11T08:07:34.587378Z 12 [Note] 'CHANGE MASTER TO FOR CHANNEL 'group_replication_recovery' executed'. Previous state master_host='bpe_service', master_port= 3317, master_log_file='', master_log_pos= 4, master_bind=''. New state master_host='<NULL>', master_port= 0, master_log_file='', master_log_pos= 4, master_bind=''. 2017-01-11T08:07:34.591679Z 12 [ERROR] Plugin group_replication reported: 'Fatal error during the Recovery process of Group Replication. The server will leave the group.' 2017-01-11T08:07:34.592447Z 0 [Note] Plugin group_replication reported: 'getstart group_id 8da193f6' 2017-01-11T08:07:37.943536Z 0 [Note] Plugin group_replication reported: 'state 4330 action xa_terminate' 2017-01-11T08:07:37.943852Z 0 [Note] Plugin group_replication reported: 'new state x_start' 2017-01-11T08:07:37.943879Z 0 [Note] Plugin group_replication reported: 'state 4257 action xa_exit' 2017-01-11T08:07:37.943981Z 0 [Note] Plugin group_replication reported: 'Exiting xcom thread' 2017-01-11T08:07:37.943999Z 0 [Note] Plugin group_replication reported: 'new state x_start' |
【解决办法】：
mysql> CHANGE MASTER TO MASTER_USER='repl', MASTER_PASSWORD='rlpbright_1927@ys' FOR CHANNEL 'group_replication_recovery'; Query OK, 0 rows affected, 2 warnings (0.01 sec) mysql> stop group_replication; Query OK, 0 rows affected (0.01 sec) mysql> start group_replication; Query OK, 0 rows affected (2.20 sec) mysql> mysql> SELECT * FROM performance_schema.replication_group_members; +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | CHANNEL_NAME | MEMBER_ID | MEMBER_HOST | MEMBER_PORT | MEMBER_STATE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ | group_replication_applier | 21750571-d7d3-11e6-91e2-18a99b763071 | hch_test_web_1_24 | 3317 | ONLINE | | group_replication_applier | 3381d155-d7d1-11e6-94f7-b8ca3af6e36c | hch_test_dbm2_121_71 | 3317 | ONLINE | | group_replication_applier | 84dba8ff-d7d2-11e6-aa9a-18a99b76310d | bpe_service | 3317 | ONLINE | +---------------------------+--------------------------------------+----------------------+-------------+--------------+ 3 rows in set (0.00 sec) mysql> |
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