ClickHouse得安装及集群模式得搭建

安装前提

1. CentOS取消打开文件数限制

在/etc/security/limits.conf、/etc/security/limits.d/90-nproc.conf这2个文件的末尾加入一下内容（没有权限可使用sudo chmod 777 文件名字）

/etc/security/limits.conf :

* soft nofile 65536
* hard nofile 65536
* soft nproc 131072
* hard nproc 131072

/etc/security/limits.d/90-nproc.conf :

* soft nofile 65536 
* hard nofile 65536 
* soft nproc 131072 
* hard nproc 131072

使用ulimit -n 进行查看，只有重启后才生效

2. CentOS取消SELINUX

修改/etc/selinux/config中的SELINUX=disabled后重启

3. 关闭防火墙

service iptables stop
service ip6tables stop

4. 安装依赖

yum install -y libtool
yum install -y *unixODBC*

网址

官网：https://clickhouse.yandex/
下载地址：http://repo.red-soft.biz/repos/clickhouse/stable/el6/

安装

rpm -ivh *.rpm

集群模式

在另外得节点重复以上操作

三台机器修改配置文件config.xml

<listen_host>::</listen_host>
<!-- <listen_host>::1</listen_host> -->
<!-- <listen_host>127.0.0.1</listen_host> -->

在三台机器的etc目录下新建metrika.xml文件

vim /etc/metrika.xml

<yandex>
<clickhouse_remote_servers>
    <perftest_3shards_1replicas>
        <shard>
             <internal_replication>true</internal_replication>
            <replica>
                <host>hadoop102</host>
                <port>9000</port>
            </replica>
        </shard>
        <shard>
            <replica>
                <internal_replication>true</internal_replication>
                <host>hadoop103</host>
                <port>9000</port>
            </replica>
        </shard>
        <shard>
            <internal_replication>true</internal_replication>
            <replica>
                <host>hadoop104</host>
                <port>9000</port>
            </replica>
        </shard>
    </perftest_3shards_1replicas>
</clickhouse_remote_servers>


<zookeeper-servers>
  <node index="1">
    <host>hadoop102</host>
    <port>2181</port>
  </node>

  <node index="2">
    <host>hadoop103</host>
    <port>2181</port>
  </node>
  <node index="3">
    <host>hadoop104</host>
    <port>2181</port>
  </node>
</zookeeper-servers>

<!-- 不同得机器 改成不同 --> 
<macros>
    <replica>hadoop102</replica>
</macros>


<networks>
   <ip>::/0</ip>
</networks>


<clickhouse_compression>
<case>
  <min_part_size>10000000000</min_part_size>
                                             
  <min_part_size_ratio>0.01</min_part_size_ratio>                                                                                                                                       
  <method>lz4</method>
</case>
</clickhouse_compression>

</yandex>

启动

首先在三台机器开启Zookeeper

nohup clickhouse-server --config-file=/etc/clickhouse-server/config.xml  >null 2>&1 &