参考官网:https://mariadb.com/kb/en/mariadb/galera-cluster-system-variables/#wsrep_notify_cmd本文出自 “激情燃烧的岁月” 博客,请务必保留此出处http://liuzhengwei521.blog.51cto.com/4855442/1930341mariadb gelera cluster集群参数介绍标签:mariadb本文系统来源:http://liuzhengwei521.blog.51cto.com/4855442/1930341
MySQL高可用MMM:MySQL主主复制管理器是一套灵活的脚本程序,基于perl实现,用来对mysqk replication进行监控和故障迁移,并能管理mysql master-master复制的配置(同一时间只有一个节点是可写的)MHA:对主节点进行监控,可实现自动故障转移至其他从节点,通过提升某一节点为新的主节点,基于主从复制实现,还需要客户端配合时间,目前MHA主要支持一主多从的架构,要搭建MHA,要求一个复制集群汇总最少有三台数据库服务器,一主二...
建库建表语句
create database test on cluster clickhouse_cluster;报错信息
↘ Progress: 0.00 rows, 0.00 B (0.00 rows/s., 0.00 B/s.) Received exception from server (version 20.1.4):
Code: 159. DB::Exception: Received from localhost:9000. DB::Exception: Watching task /clickhouse/task_queue/ddl/query-0000000011 is executing longer than distributed_ddl_task_timeout (=180) seconds. There are 2 unfinished...
安装环境:OS:Centos 6.6[root@heartbeat1 ~]# uname -aLinux heartbeat1 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux数据库软件:MariaDB Galera Cluster 10.0.20主机配置:Heartbeat1 10.0.0.7Heartbeat2 10.0.0.8Heartbeat3 10.0.0.9关闭防火墙:Chkconfig iptables offsed -i ‘s/SELINUX=enforcing/SELINUX=disabled/g‘ /etc/selinux/config设置主机hosts[root@heartbeat1 ...
Percona XtraDB Cluster之流量控制
scofield 菜鸟运维杂谈
什么是流量控制?Percona XtraDB Cluster具有一种称为流控制的自调节机制。该机制有助于避免集群中最弱/最慢的成员明显落后于集群中其他成员的情况。当集群成员在写数据很慢(同时又继续从群集组通道接收写集)时,传入/接收队列的大小会增加。如果此队列超过设置的阈值(gcs.fc_limit),则该节点将发出FLOW_CONTROL消息,要求其他成员放慢或暂停处理。
gcs.fc_limit此...
~]# yum install -y mariadb mariadb-galera-server mariadb-galera-common galera rsync[root@node5 ~]# yum install -y mariadb mariadb-galera-server mariadb-galera-common galera rsync[root@node6 ~]# yum install -y mariadb mariadb-galera-server mariadb-galera-common galera rsync3.配置 MariaDB Galera Cluster初始化数据库服务,只在一个节点进行[root@node4 mariadb]# systemctl start mariadb
[root@node4 mariad...
proxysql cluster 搭建笔记官方文档: https://proxysql.com/blog/proxysql-clusterhttps://proxysql.com/blog/proxysql-cluster-part2 MySQL环境: 主库 172.100.2.13 从库1 172.100.2.11 从库2 172.100.2.14proxysql节点: 172.100.2.13 172.100.2.11 172.100.2.14话不多说,上车就走!我们在主库 172.100.2.13 上执行添加账号的操作:-- 添加一个监控用账号(能监控到从库的复制情况)GRANT USAGE,process,replication slave,re...
系统:CentOS 6.8 x86_64软件:MariaDB 10.1.16节点一:192.168.11.132 4C 8GB节点二:192.168.11.133 4C 8GB软件获取访问MariaDB企业版下载地址 https://mariadb.com/my_portal/download/mariadb-enterprise 登录帐号后选择 10.1.16GA版本 源代码包下载。从MariaDB Enterprise 10.1版本开始,企业版软件包与集群功能集成到一起,所以下载软件包就一个。下载源代码包到CentOS系统的/usr/src目录下访问galeracluster官网 http://gal...
Grid Infrastructure Redundant Interconnect and ora.cluster_interconnect.haip (文档 ID 1210883.1) In this DocumentPurposeDetails Case 1: Single Private Network Adapter Case 2: Multiple Private Network Adapters 2.1. Default Status 2.2. When Private Network Adapter Fails 2.3. When Another Private Network Adapter Fails 2.4. When Private Network Adapter Restores Miscellaneous HAIP Log File L1. Log Sa...