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Cassandra之多数据中心集群搭建

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1.集群架构如下准备5台RHL7.2的VMservers模拟4台在数据中心TJPDC,一台在数据中心WHDRC此次安装的cassandra版本是apache-cas 1. 集群架构如下 准备5台RHL 7.2 的VM servers 模拟4台在数据中心TJPDC,一台在
1.集群架构如下准备5台RHL7.2的VMservers模拟4台在数据中心TJPDC,一台在数据中心WHDRC此次安装的cassandra版本是apache-cas

1. 集群架构如下 准备5台RHL 7.2 的VM servers 模拟4台在数据中心TJPDC,一台在数据中心WHDRC 此次安装的cassandra 版本是 apache-cassandra-2.2.7 数据中心    机器列表 TJPDC    192.168.1.180192.168.1.181192.168.1.182192.168.1.183 WHDRC    192.168.1.190 2. 配置集群管理工具pdsh 下载地址 https://sourceforge.net/projects/pdsh/ 解压安装包 [cassandralocalhost ~]$ tar -xjf pdsh-2.26.tar.bz2 1 3. 创建cassandra 用户 [rootlocalhost ~]# useradd cassandra [rootlocalhost ~]# passwd cassandra Changing password for user cassandra. New password:  BAD PASSWORD: The password contains the user name in some form Retype new password:  passwd: all authentication tokens updated successfully. 4. 创建JAVA_HOME和CASSANDRA_HOME的路径 [rootlocalhost ~]# mkdir -p /opt/java [rootlocalhost ~]# mkdir -p /opt/cassandra [rootlocalhost ~]# chown -R cassandra /opt/java/ [rootlocalhost ~]# chown -R cassandra /opt/cassandra/

解压安装包 [cassandralocalhost cassandra]$ tar -xzvf apache-cassandra-2.2.7-bin.tar.gz [cassandralocalhost java]$ tar -xzvf jdk-8u162-linux-x64.tar.gz 设置环境变量 # .bash_profile

# Get the aliases and functions if [ -f ~/.bashrc ]; then         . ~/.bashrc fi

# User specific environment and startup programs JAVA_HOME/opt/java/jdk1.8.0_162 CASSANDRA_HOME/opt/cassandra/apache-cassandra-2.2.7

PATH$JAVA_HOME/bin:$CASSANDRA_HOME/bin:$PATH:$HOME/.local/bin:$HOME/bin

export PATH 5. 配置cassandra 集群信息 创建data file ,commit log file and cached files 相关的目录 [cassandralocalhost ~]$ mkdir -p /opt/cassandra/commitlog [cassandralocalhost ~]$ mkdir -p /opt/cassandra/data [cassandralocalhost ~]$ mkdir -p /opt/cassandra/saved_caches 修改cassandra 的配置文件 $CASSANDRA_HOME/conf/cassandra.yaml 参数名称    指定值 data_file_directories    /opt/cassandra/data saved_caches_directory    /opt/cassandra/saved_caches commitlog_directory    /opt/cassandra/commitlog data_file_directories    /opt/cassandra/data cluster_name    ‘Cassandra Cluster’ endpoint_snitch    GossipingPropertyFileSnitch seed_provider    seeds: “192.168.1.180,192.168.1.181,192.168.1.182,192.168.1.183” listen_address    192.168.1.18(0,1,2,3),192.168.1.190 cluster_name: Cassandra Cluster data_file_directories:     - /opt/cassandra/data commitlog_directory: /var/lib/cassandra/commitlog saved_caches_directory: /opt/cassandra/saved_caches endpoint_snitch: GossipingPropertyFileSnitch seed_provider:     # Addresses of hosts that are deemed contact points.     # Cassandra nodes use this list of hosts to find each other and learn     # the topology of the ring.  You must change this if you are running     # multiple nodes!     - class_name: org.apache.cassandra.locator.SimpleSeedProvider       parameters:           # seeds is actually a comma-delimited list of addresses.           # Ex: ",,"           - seeds: "192.168.1.180,192.168.1.181,192.168.1.182,192.168.1.183" listen_address: 192.168.1.180 修改数据中心信息 cassandra-rackdc.properties 数据中心1TJPDC

[cassandralocalhost conf]$ vi cassandra-rackdc.properties # These properties are used with GossipingPropertyFileSnitch and will # indicate the rack and dc for this node dcTJPDC rackTJrack 数据中心2WHDRC

[cassandralocalhost conf]$ vi cassandra-rackdc.properties # These properties are used with GossipingPropertyFileSnitch and will # indicate the rack and dc for this node dcWHDRC rackWHrack 6. 启动集群 [cassandralocalhost conf]$ cassandra 1 7. 查看集群节点状态 [cassandralocalhost conf]$ nodetool status Datacenter: TJPDC StatusUp/Down |/ StateNormal/Leaving/Joining/Moving --  Address        Load       Tokens       Owns (effective)  Host ID                               Rack UN  192.168.1.180  84.71 KB   256          41.2%             46df8118-75a7-4981-9981-e88648b0cee6  TJrack UN  192.168.1.181  67.76 KB   256          41.9%             1f323b75-4e6c-41bc-9539-c03228fd82d3  TJrack UN  192.168.1.182  84.74 KB   256          37.1%             80e51164-b528-498d-9452-422f0d2c67ec  TJrack UN  192.168.1.183  67.7 KB    256          39.1%             3fefac26-a193-40ba-9d84-3b2cdb9527ca  TJrack Datacenter: WHDRC StatusUp/Down |/ StateNormal/Leaving/Joining/Moving --  Address        Load       Tokens       Owns (effective)  Host ID                               Rack UN  192.168.1.190  67.78 KB   256          40.7%             ba843b11-6db6-4a82-  

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