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[已解决] MGR 从库启动报错

456 2 2023-6-14 00:58
mysql 8.0.33  MGR 单主 docker OS centos 7.6  


#配置文件

[mysqld]
# server
user=mysql
basedir=/usr/local/mysql
datadir=/data/3306/data
port=3306

#pid file
pid_file=/data/3306/data/mysql.pid
log_error=/data/3306/data/mysql_err.log
#default 2
log_error_verbosity=3
log_timestamps = system
socket=/tmp/mysql.sock

skip_name_resolve
report_host='10.0.0.61'


## password plugin
default_authentication_plugin = mysql_native_password

#replication
log_bin_index=/data/3306/binlog/binlog_index
expire_logs_days=7
log-bin=/data/3306/binlog/mysql-bin
binlog_format = ROW
transaction_isolation = READ-COMMITTED
## safe_slave for 8.0.3  
master_info_repository = TABLE
relay_log_info_repository = TABLE
relay_log_recovery = 1
## gtid mode
gtid_mode                            = ON
enforce_gtid_consistency             = ON
## server_id  
server_id=8
binlog_transaction_dependency_tracking = WRITESET


transaction_write_set_extraction=XXHASH64



# multi-threaded replica
replica_parallel_type=LOGICAL_CLOCK #default 8.0.29 过期
replica_parallel_workers=4 #default 8.0.29 过期
replica_preserve_commit_order=on #default 8.0.29 过期


## group replication settings
#plugin_load_add = 'group_replication.so'  
sql_generate_invisible_primary_key = 1

disabled_storage_engines             = "MyISAM,BLACKHOLE,FEDERATED,ARCHIVE,MEMORY"
binlog_checksum                      = CRC32 # default
loose_plugin_load_add                      = 'group_replication.so'
group_replication_group_name         = "0c400488-f659-11ed-84af-0242ac110002"
group_replication_start_on_boot      = off
group_replication_local_address      = "10.0.0.61:33061"
group_replication_group_seeds        = "10.0.0.60:33061,10.0.0.61:33061,10.0.0.62:33061"
group_replication_bootstrap_group    = off

# binlog
log_bin_index=/data/3306/binlog/binlog_index
expire_logs_days=7
log_bin=/data/3306/binlog/mysql-bin
binlog_format = ROW
# relay
relay_log = /data/3306/binlog/relay-log                              
relay_log_index = /data/3306/binlog/relay_bin.index


[mysql]
prompt=(\\U)\\_[\\d]>\\_
[client]
socket=/tmp/mysql.sock


##### 问题描述
主节点可以启动 MGR
从节点MySQL server都无法启动,尝试过将 MGR的参数都注释掉也不行; 备注: 前天是可以正常启动的

### 报错如下
### 检查过 plugin dir 有这个插件


2023-06-13T15:29:26.939319-00:00 0 [ERROR] [MY-013180] [Server] Function 'group_replication' already exists.
2023-06-13T15:29:26.939347-00:00 0 [ERROR] [MY-010736] [Server] Couldn't load plugin named 'group_replication' with soname 'group_replication.so'.
2023-06-13T15:29:27.238704-00:00 0 [Note] [MY-011332] [Server] Plugin mysqlx reported: 'IPv6 is available'
2023-06-13T15:29:27.259425-00:00 0 [Note] [MY-011323] [Server] Plugin mysqlx reported: 'X Plugin ready for connections. bind-address: '::' port: 33060'
2023-06-13T15:29:27.259782-00:00 0 [ERROR] [MY-011300] [Server] Plugin mysqlx reported: 'Setup of socket: '/tmp/mysqlx.sock' failed, another process with PID 783 is using UNIX socket file'
2023-06-13T15:29:27.259849-00:00 0 [Note] [MY-011322] [Server] Plugin mysqlx reported: 'Please see the MySQL documentation for 'mysqlx_socket' system variables to fix the error'
2023-06-13T15:29:27.412403-00:00 0 [Note] [MY-010855] [Server] Recovering after a crash using /data/3306/binlog/mysql-bin
2023-06-13T15:29:27.412450-00:00 0 [System] [MY-010229] [Server] Starting XA crash recovery...
2023-06-13T15:29:27.922369-00:00 0 [Note] [MY-013911] [Server] Crash recovery finished in binlog engine. No attempts to commit, rollback or prepare any transactions.
2023-06-13T15:29:27.922407-00:00 0 [Note] [MY-013911] [Server] Crash recovery finished in InnoDB engine. No attempts to commit, rollback or prepare any transactions.
2023-06-13T15:29:27.922414-00:00 0 [System] [MY-010232] [Server] XA crash recovery finished.
2023-06-13T15:29:27.924189-00:00 0 [Note] [MY-012487] [InnoDB] DDL log recovery : begin
2023-06-13T15:29:27.924225-00:00 0 [Note] [MY-012488] [InnoDB] DDL log recovery : end
2023-06-13T15:29:27.924354-00:00 0 [Note] [MY-011946] [InnoDB] Loading buffer pool(s) from /data/3306/data/ib_buffer_pool
2023-06-13T15:29:27.999680-00:00 0 [Note] [MY-011946] [InnoDB] Buffer pool(s) load completed at 230613 15:29:27
2023-06-13T15:29:28.029142-00:00 0 [Note] [MY-012922] [InnoDB] Waiting for purge to start
2023-06-13T15:29:28.117526-00:00 0 [Note] [MY-010182] [Server] Found ca.pem, server-cert.pem and server-key.pem in data directory. Trying to enable SSL support using them.
2023-06-13T15:29:28.117720-00:00 0 [Note] [MY-010304] [Server] Skipping generation of SSL certificates as certificate files are present in data directory.
2023-06-13T15:29:28.138387-00:00 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2023-06-13T15:29:28.138452-00:00 0 [System] [MY-013602] [Server] Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel.
2023-06-13T15:29:28.138532-00:00 0 [Note] [MY-010308] [Server] Skipping generation of RSA key pair through --sha256_password_auto_generate_rsa_keys as key files are present in data directory.
2023-06-13T15:29:28.138575-00:00 0 [Note] [MY-010308] [Server] Skipping generation of RSA key pair through --caching_sha2_password_auto_generate_rsa_keys as key files are present in data directory.
2023-06-13T15:29:28.139526-00:00 0 [Note] [MY-010252] [Server] Server hostname (bind-address): '*'; port: 3306
2023-06-13T15:29:28.139564-00:00 0 [Note] [MY-010253] [Server] IPv6 is available.
2023-06-13T15:29:28.139571-00:00 0 [Note] [MY-010264] [Server]   - '::' resolves to '::';
2023-06-13T15:29:28.139580-00:00 0 [Note] [MY-010251] [Server] Server socket created on IP: '::'.
2023-06-13T15:29:28.147153-00:00 0 [ERROR] [MY-010259] [Server] Another process with pid 783 is using unix socket file.
2023-06-13T15:29:28.147167-00:00 0 [ERROR] [MY-010268] [Server] Unable to setup unix socket lock file.
2023-06-13T15:29:28.147175-00:00 0 [ERROR] [MY-010119] [Server] Aborting



全部回复(2)
yejr 2023-6-14 08:40:33
请补充几个信息:
1. 构建MGR的详细过程
2. 主节点上MGR相关配置参数
3. 主、从节点上MGR相关启动失败信息(上面提供的错误日志中,没有关于MGR启动失败的有效信息)
fander 2023-6-16 00:51:56
本帖最后由 fander 于 2023-6-16 09:05 编辑

https://mp.weixin.qq.com/s?__biz ... ionid=1686846941#rd
原因见我这系列文章。
解决办法就是,启动这个数据库之前先
rm -f /tmp/mysqlx.sock.lock
rm -f /tmp/mysql.sock.lock
Young

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