clickhouse 离线/在线 安装和java通过jdbc链接

 检查

需要确保是否x86_64处理器构架、Linux并且支持SSE 4.2指令集

grep -q sse4_2 /proc/cpuinfo && echo "SSE 4.2 supported" || echo "SSE 4.2 not supported"

官网给的是Ubuntu/Debian的安装方式:如下

sudo apt-get install dirmngr
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E0C56BD4

echo "deb http://repo.yandex.ru/clickhouse/deb/stable/ main/" | sudo tee /etc/apt/sources.list.d/clickhouse.list
sudo apt-get update

sudo apt-get install -y clickhouse-server clickhouse-client

sudo service clickhouse-server start
clickhouse-client

centos的安装

参考:https://github.com/Altinity/clickhouse-rpm-install

#step 1
#先下载安装脚本
curl -s https://packagecloud.io/install/repositories/altinity/clickhouse/script.rpm.sh | sudo bash
#可以指定系统版本
curl -s https://packagecloud.io/install/repositories/altinity/clickhouse/script.rpm.sh | sudo os=centos dist=7 bash
#这里注意,我当时指定错了系统版本,导致找不到libstdc++的依赖包,汗颜!!

#step 2
#查看库里clickhouse相关的包
sudo yum list 'clickhouse*'
#step 3
#安装核心的服务和客户端
sudo yum install -y clickhouse-server clickhouse-client
#step 4
#启动服务
service clickhouse-server start

#step 5
#启动客户端
clickhouse-client

离线安装

离线安装包下载地址http://repo.yandex.ru/clickhouse/

另一个下载地址https://packagecloud.io/altinity/clickhouse 

所以安装顺序如下:
clickhouse-common-static
clickhouse-server
clickhouse-client
 
安装完后启动
#启动服务
service clickhouse-server start
#启动客户端
clickhouse-client   或者clickhouse-client -h127.0.0.1
进入命令行后show databases;看到如下,说明安装成功
 
SHOW DATABASES
┌─ name  ─┐
│ default │
│ system  │
└── ——  ──┘

 

通过java JDBC链接Clickhouse

maven 依赖

<dependency>
    <groupId>ru.yandex.clickhouse</groupId>
    <artifactId>clickhouse-jdbc</artifactId>
    <version>0.1.54</version>
</dependency>

 java代码

JDBC Driver Class: ru.yandex.clickhouse.ClickHouseDriver

应为我没有配置账号密码,所以直接给个url就可以创建链接,代码如下:

public static Connection getClickHouseConnection() throws SQLException {
        String url="jdbc:clickhouse://ip:8123/dataBaseName";
        ClickHouseDataSource dataSou=new ClickHouseDataSource(url);//这是官方给的创建方式
        return dataSou.getConnection();
    //return
dataSou.getConnection(username, password);
}

 

PS:这里可以不用Class.forName()去DriverManager注册初始化drive,感兴趣的同学可以研究一下java类加载机制和jdk1.6以后引入的service provider概念。

 

 

 

远程连接配置项

注意:vi /etc/clickhouse-server/config.xml中的如下配置项

类似mysql中的远程连接权限,放开ipv4连接打开注释 

 <listen_host>0.0.0.0</listen_host>
   <!-- Listen specified host. use :: (wildcard IPv6 address), if you want to accept connections both with IPv4 and IPv6 from everywhere. -->
    <!-- <listen_host>::</listen_host> -->
    <!-- Same for hosts with disabled ipv6: -->
     <listen_host>0.0.0.0</listen_host>

    <!-- Default values - try listen localhost on ipv4 and ipv6: -->
    <!--
    <listen_host>::1</listen_host>
    <listen_host>127.0.0.1</listen_host>
    -->

 

ps:我还发现个神奇的事情

配置上面远程连接后,本机用 clickhouse-client 或者 clickhouse-client -h localhost 连接本机服务,他是拒绝的

ClickHouse client version 19.9.2.4 (official build).
Connecting to localhost:9000 as user default.
Code: 210. DB::NetException: Connection refused (localhost:9000, ::1)

但是用  clickhouse-client -h 本机ip 或者  clickhouse-client -h 127.0.0.1 是可以连接的。(clickhouse版本如上 version 19.9.2.4)

备注:系统 /etc/hosts 内是有  127.0.0.1  到 localhost的映射的。

 

附:Clickhouse官方文档 https://clickhouse.yandex/docs/zh/

posted @ 2019-06-20 18:36  Nucky_yang  阅读(7467)  评论(0编辑  收藏  举报