CrateDB单机版和集群版安装

ゝ一纸荒年。 2021-09-29 04:52 362阅读 0赞

这里安装的是 crate-ce-4.0.0 ，必须使用java 11版本

从Oracle官网下载解压安装即可，下载地址：[https://crate.io/download/][https_crate.io_download]

vim ~/.bash_profile
    添加如下内容
    JAVA_HOME=/home/crate/jdk-11.0.3/
    PATH=$JAVA_HOME/bin:$PATH
    CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
    export JAVA_HOME
    export PATH
    export CLASSPATH
    
    使环境变量生效
    source ~/.bash_profile

## 1、新建用户和组 ##

groupadd crate
    useradd  -g crate crate

不能使用root用户安装否则会报错：

org.elasticsearch.bootstrap.StartupException: java.lang.RuntimeException: can not run crate as root

## 2、安装启动 ##

tar -xzf crate-*.tar.gz
    cd crate-*
    
    ./bin/crate

## 3、访问地址 ##

http://192.168.X.X:4200/

## ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3YWh1dA_size_16_color_FFFFFF_t_70][] ##

## 4、可能遇见的错误 ##

1:initial heap size [268435456] not equal to maximum heap size [3107979264];
     this can cause resize pauses and prevents mlockall from locking the entire heap
    2:max file descriptors [65535] for crate process is too low, 
    increase to at least [65536]
    3: max virtual memory areas vm.max_map_count [65530] is too low,
     increase to at least [262144] by adding `vm.max_map_count = 262144` 
    to `/etc/sysctl.conf` or invoking `sysctl -w vm.max_map_count=262144`

解决办法：

1：export CRATE_HEAP_SIZE=2g
    
    2：在root用户下修改
    vim /etc/security/limits.conf
    添加
    crate	soft	nofile		65536
    crate	hard	nofile		65536
    退出crate用户再登录
    
    3：vim /etc/sysctl.conf
    添加 vm.max_map_count = 262144
    
    执行  sysctl -w vm.max_map_count=262144

## 5、集群配置 ##

集群有3台主机，192.168.3.11、192.168.3.12、192.168.3.13

修改每台上的node.name分别为node1、node2、node3，network.host为对应的主机ip地址，然后分别启动即可，启动命令和单机版一样

cluster.name: crate
    bootstrap.memory_lock : false
    node.name: node1
    path.data: /data/crate
    node.master: true
    node.data: true
    psql.port: 5432
    psql.enabled: true
    
    discovery.seed_hosts:
        - 192.168.3.11:4300
        - 192.168.3.12:4300
        
    cluster.initial_master_nodes: 
        - 192.168.3.11
        - 192.168.3.12
        
    auth.host_based.enabled: true
    auth:
      host_based:
        config:
          0:
            user: crate
            address: _local_
            method: trust
          99:
            method: password
    
    network.host: 192.168.3.11
    transport.tcp.port: 4300
    transport.tcp.compress: true
    http.port: 4200
    http.max_content_length: 100mb
    
    bulk.request_timeout: 1m
    indices.breaker.query.limit: 60%
    indices.breaker.query.overhead: 1.09
    
    
    
    gateway.recover_after_nodes: 2
    gateway.recover_after_time: 5m
    gateway.expected_nodes: 3

[https_crate.io_download]: https://crate.io/download/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3p3YWh1dA_size_16_color_FFFFFF_t_70]: /images/20210923/c9fedd7ad98c480dbadf02203708fd57.png