mariadb 10.1.13 galera集群：错误

Question

mariadb 10.1.x galera集群设置。

第一个节点192.168.159.132

/etc/mysql/my.cnf

[galera] 
# Mandatory settings 
wsrep_on=ON 
wsrep_provider=/usr/lib/galera/libgalera_smm.so 
wsrep_cluster_address=gcomm://192.168.159.132,192.168.159.135,192.168.159.136 
binlog_format=row 
default_storage_engine=InnoDB 
innodb_autoinc_lock_mode=2 

第一个节点192.168.159.132

$ sudo的服务mysql的引导

* Bootstrapping the cluster mysqld 
Starting mysql (via systemctl): mysql.service 
Job for mariadb.service failed because the control process exited with error code. See "systemctl status mariadb.service" and "journalctl -xe" for details. 

$ systemctl status mariadb.service

[ERROR] WSREP: gcs/src/gcs_core.cpp:gcs_core_open():208: Failed to open backend connection: -110 (Connection timed out) 
[ERROR] WSREP: gcs/src/gcs.cpp:gcs_open():1379: Failed to open channel 'my_wsrep_cluster' at 'gcomm://192.168.32.251,192.168.32.252,192.168.32...ection timed out) 
[ERROR] WSREP: gcs connect failed: Connection timed out 
[ERROR] WSREP: wsrep::connect(gcomm://192.168.32.251,192.168.32.252,192.168.32.253) failed: 7 
[ERROR] Aborting 
systemd[1]: mariadb.service: Main process exited, code=exited, status=1/FAILURE 
systemd[1]: Failed to start MariaDB database server. 
systemd[1]: mariadb.service: Unit entered failed state. 
systemd[1]: mariadb.service: Failed with result 'exit-code'. 

为什么“Galera Cluster”无法启动？

如何检查“连接超时”？

Answer 1

您的配置有错误。之后浩期货你只使用一个：，如：

wsrep_cluster_address=gcomm://192.168.159.132,192.168.159.135,192.168.159.136 

Answer 2

你得到“连接超时”，因为节点试图连接到wsrep_cluster_address列出的其他节点，这是不在线，因为这是集群中的第一个节点。因此，在引导期间，您应该使用空的wsrep_cluster_address：来启动第一个节点。 wsrep_cluster_address ='gcomm：//'。

Answer 3

其是一个错误：

使用格式如下：

wsrep_cluster_address="gcomm://first_ip,second_ip,third_ip"