Cassandra 3.11.10 集群搭建-Windows

一、Cassandra 3.11.10 依赖环境安装

1. JDK

   1)Cassandra 3.11.10基于jdk8！单需安装低版本的jdk8，推荐Jdk8_251_x64;

   2)设置JAVA_HOME环境变量

3)验证jdk的是否正确安装

命令:java -version

4)常见错误：

1.最新版jdk8，运行cassandra会出现Failed to write core dump. Minidumps are not enabled by…；

2.jdk8 x86会出现Error occurred during initialization of VM Could not reserve enough space for 2097152KB object heap；

2. Python

   Cassandra的命令式客户端：cqlsh基于python开发，需安装python运行环境。官网下载地址Python Releases for Windows

   1)python环境变量设置(==注：windows的msi安装，会自设置环境变量==)

2)验证

命令:python

二、Cassandra 3.11.10 安装

1. 下载Cassandra 3.11.10

   官方镜像下载地址

2. 环境变量设置

3. 验证:默认配置时

   命令:cassandra

4. Cassandra正常启动后，使用cqlsh客户端连接

   命令:cqlsh

​ 参考：How To Install Cassandra On Windows 10

三、Cassandra 集群搭建

这里使用三台电脑进行集群搭建，IP依次为192.168.2.207、192.168.2.203、192.168.79.128。

1. cassandra.yaml配置文件

   1)设置集群名称

   所有Node的cassandra.yaml中的集群名需保持一致。

cluster_name: 'Test Cluster'			#集群中所有Node的集群名需保持一致	#默认第10行
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​ 2)设置集群节点

该配置为Node IP为192.168.2.207上的配置。

master ==192.168.2.207==；slave-1 ==192.168.2.203==；slave-2 ==192.168.79.128==；

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: "<ip1>,<ip2>,<ip3>"
          - seeds: "192.168.2.207,192.168.2.203,192.168.79.178"
    #默认第416-425行
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​ 3)设置监听地址（==每个Node对应填写自己的IP地址==）

该配置为Node IP为192.168.2.207上的配置。

# Address or interface to bind to and tell other Cassandra nodes to connect to.
# You _must_ change this if you want multiple nodes to be able to communicate!
#
# Set listen_address OR listen_interface, not both.
#
# Leaving it blank leaves it up to InetAddress.getLocalHost(). This
# will always do the Right Thing _if_ the node is properly configured
# (hostname, name resolution, etc), and the Right Thing is to use the
# address associated with the hostname (it might not be).
#
# Setting listen_address to 0.0.0.0 is always wrong.
#
listen_address: 192.168.2.207				#默认第612行
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​ 4)设置rpc（开启服务，并为每个Node填写自己的IP）

该配置为Node IP为192.168.2.207上的配置。

# Whether to start the thrift rpc server.
start_rpc: true				#默认第675行   #true:开启    #false:关闭

# The address or interface to bind the Thrift RPC service and native transport
# server to.
#
# Set rpc_address OR rpc_interface, not both.
#
# Leaving rpc_address blank has the same effect as on listen_address
# (i.e. it will be based on the configured hostname of the node).
#
# Note that unlike listen_address, you can specify 0.0.0.0, but you must also
# set broadcast_rpc_address to a value other than 0.0.0.0.
#
# For security reasons, you should not expose this port to the internet.  Firewall it if needed.
rpc_address: 192.168.2.207			#默认第689行
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​ 5)另外两个Node(192.168.2.203、192.168.79.128)的配置

这两个Node为分发，配置同Node(192.168.2.207)。

Node:192.168.2.203

listen_address: 192.168.2.203				#默认第612行
rpc_address: 192.168.2.203			#默认第689行
- seeds: "192.168.2.203,192.168.2.207,192.168.79.178"
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Node:192.168.79.128

listen_address: 192.168.79.128				#默认第612行
rpc_address: 192.168.79.128			#默认第689行
- seeds: "192.168.79.128,192.168.2.203,192.168.2.207"
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6)启动Cassandra（每个Node都执行）

cassandra -R #root用户需要-R参数

nodetool status #查看节点状态

7)启动cqlsh

cqsh [主机名]

示例：cqsh 192.168.2.207

参考:cassandra3.11.4集群搭建 – osc_qpjywoo6的个人空间 – OSCHINA – 中文开源技术交流社区