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2022年MySQL群集双机模拟方案Mysql教程.docx


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2022年MySQL群集双机模拟方案Mysql教程
硬件配置
  
  一般PC server * 2 (最小集群环境须要4台服务器)
  
  模拟环境
  
  red hat linux9 for x86 (or reduster
  shell>cd /var/lib/mysql-cluster
  shell>vi
  [NDBD DEFAULT]   # Options affecting ndbd processes on all data nodes:
  NoOfReplicas=2   # Number of replicas
  DataMemory=80M   # How much memory to allocate for data storage
  IndexMemory=52M  # How much memory to allocate for index storage
  # For DataMemory and IndexMemory, we have used the
  # default values. Since the "world" database takes up
  # only about 500KB, this should be more than enough for
  # this example Cluster setup.
  [TCP DEFAULT]
  
  [NDB_MGMD]        # Management process options:
  hostname= # Hostname or IP address of MGM node
  datadir=/var/lib/mysql-cluster  # Directory for MGM node logfiles
  
  [NDBD]             # Options for data node "A":
  # (one [NDBD] section per data node)
  HostName=      # Hostname or IP address
  DataDir=/usr/local/mysql/data  # Directory for this data node's datafiles
  
  [NDBD]             # Options for data node "B":
  hostname=      # Hostname or IP address
  datadir=/usr/local/mysql/data  # Directory for this data node's datafiles
  
  [MYSQLD]             # SQL node options:
  hostname=     # Hostname or IP address
  # Directory for SQL node's datafiles
  # (additional mysqld connections can be
  # specified for this node for various
  # purposes such as running ndb_restore)
  
  [MYSQLD] # SQL node options:
  hostname=     # Hostname or IP address
  # Directory for SQL node's datafiles
  # (additional mysqld connections can be
  # specified for this node for various
  # purposes such as running ndb_restore)
  
  第一次启动
  
  在主机ndb1_mgmd_sqld1上执行如下过程
  
  shell> ndb_mgmd -f /var/lib/mysql-cluster/
  
  在两台主机上执行如下过程
  
  shell>ndbd –initial (note:--initial选项只能在第一次启动的时候运用)
  shell>

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  • 时间2022-06-16