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Clickhouse集群搭建
安装包下载
可以通过deb/rpm、tgz方式安装,但是离线安装选择tgz方式比较方便。本篇先容
如何离线安装。
tgz下载:https://packages.clickhouse.com/tgz/lts
clickhouse单机安装
搭建集群必要在每台主机上进行单机安装,将tgz和install.sh上传到服务器,实行:
- #!/bin/bash
- export LATEST_VERSION=22.3.19.6
- export ARCH=arm64
- tar -xzvf "clickhouse-common-static-$LATEST_VERSION-${ARCH}.tgz" \
- || tar -xzvf "clickhouse-common-static-$LATEST_VERSION.tgz"
- sudo "clickhouse-common-static-$LATEST_VERSION/install/doinst.sh"
- tar -xzvf "clickhouse-common-static-dbg-$LATEST_VERSION-${ARCH}.tgz" \
- || tar -xzvf "clickhouse-common-static-dbg-$LATEST_VERSION.tgz"
- sudo "clickhouse-common-static-dbg-$LATEST_VERSION/install/doinst.sh"
- tar -xzvf "clickhouse-server-$LATEST_VERSION-${ARCH}.tgz" \
- || tar -xzvf "clickhouse-server-$LATEST_VERSION.tgz"
- sudo "clickhouse-server-$LATEST_VERSION/install/doinst.sh" configure
- sudo /etc/init.d/clickhouse-server start
- tar -xzvf "clickhouse-client-$LATEST_VERSION-${ARCH}.tgz" \
- || tar -xzvf "clickhouse-client-$LATEST_VERSION.tgz"
- sudo "clickhouse-client-$LATEST_VERSION/install/doinst.sh"
复制代码 默认安装
默认数据库目次
- 默认数据目次路径: 默认数据目次处于/var/lib/clickhouse。
- 数据目次初始化:删除此目次,重新启动clickhouse systemctl restart clickhouse-server
可以重新将数据目次初始化。
更改默认数据目次
要更改默认数据目次更改,修改/etc/clickhouse-server/config.xml
- <!-- Path to data directory, with trailing slash. -->
- <path>/var/lib/clickhouse/</path>
复制代码 设置文件是只读的,以是要修改数据目次,
- chmod 755 /etc/clickhouse-server/config.xml
复制代码
- 将全部/var/lib/clickhouse/修改为其他数据目次
- 删除默认数据库目次下全部文件。
- 重启clickhouse-server,对数据目次进行重新初始化。
2分片-1副本-3节点集群搭建
clickhouse的集群每个分片的每个副本只能放到单独的实例上,好比2分片-2副本必要4台呆板,3分片-2副本必要6台呆板。
集群的拓扑:
节点脚色描述chnode1Data + ClickHouse Keeper数据节点 + 协调器chnode2Data + ClickHouse Keeper数据节点 + 协调器chnode3ClickHouse Keeper协调器 分片及副本分布:
节点脚色chnode1分片1、副本1chnode2分片2、副本1chnode3无分片、无副本 1. 设置hosts
对于每个主机,将如下内容追加到/etc/hosts:
- 10.55.134.82 chnode1
- 10.55.134.93 chnode2
- 10.55.134.99 chnode3
复制代码 2. 修改每个主机的主机名
- hostnamectl set-hostname chnode1
复制代码 3. 设置文件上传
设置文件分布
/etc/clickhouse-server/config.d/目次中的设置会覆盖默认设置,以是官网建议:
- 服务器设置添加到/etc/clickhouse-server/config.d/
- 用户设置添加到/etc/clickhouse-server/users.d/
- 不要更改/etc/clickhouse-server/config.xml
- 不要更改/etc/clickhouse-server/users.xml
我们先来看看每个主机上的设置文件:
- [root@chnode1 clickhouse]# ll /etc/clickhouse-server/config.d/
- total 24
- -rw-r--r-- 1 root root 985 Feb 13 15:41 enable-keeper.xml
- -rw-r--r-- 1 clickhouse clickhouse 66 Feb 13 16:19 listen.xml
- -rw-r--r-- 1 root root 104 Feb 13 15:41 macros.xml
- -rw-r--r-- 1 root root 574 Feb 13 16:52 network-and-logging.xml
- -rw-r--r-- 1 root root 599 Feb 13 15:41 remote-servers.xml
- -rw-r--r-- 1 root root 386 Feb 13 15:41 use-keeper.xml
复制代码
- [root@chnode2 clickhouse]# ll /etc/clickhouse-server/config.d/
- total 24
- -rw-r--r-- 1 root root 985 Feb 13 15:41 enable-keeper.xml
- -rw-r--r-- 1 clickhouse clickhouse 66 Feb 13 16:19 listen.xml
- -rw-r--r-- 1 root root 104 Feb 13 15:41 macros.xml
- -rw-r--r-- 1 root root 574 Feb 13 16:52 network-and-logging.xml
- -rw-r--r-- 1 root root 599 Feb 13 15:41 remote-servers.xml
- -rw-r--r-- 1 root root 386 Feb 13 15:41 use-keeper.xml
复制代码
- [root@chnode3 clickhouse]# ll /etc/clickhouse-server/config.d/
- total 12
- -rw-r--r-- 1 clickhouse clickhouse 985 Feb 13 15:45 enable-keeper.xml
- -rw-r--r-- 1 clickhouse clickhouse 61 Feb 13 16:06 listen.xml
- -rw-r--r-- 1 clickhouse clickhouse 566 Feb 13 15:45 network-and-logging.xml
复制代码 chnode1设置文件
- network-and-logging.xml
- 日志在1000M大小时滚动一次,保存3000M的日志。
- clickhouse监听8123和9000端口
- 服务器间通讯使用端口9009
- <clickhouse>
- <logger>
- <level>debug</level>
- <log>/var/log/clickhouse-server/clickhouse-server.log</log>
- <errorlog>/var/log/clickhouse-server/clickhouse-server.err.log</errorlog>
- <size>1000M</size>
- <count>3</count>
- </logger>
- <display_name>clickhouse</display_name>
- <listen_host>0.0.0.0</listen_host>
- <http_port>8123</http_port>
- <tcp_port>9000</tcp_port>
- <interserver_http_port>9009</interserver_http_port>
- </clickhouse>
复制代码
- enable-keeper.xml
- chnode节点的server_id设置为1,其他节点id要不同。
- 其他设置和chnode2一样
- <clickhouse>
- <keeper_server>
- <tcp_port>9181</tcp_port>
- <server_id>1</server_id>
- <log_storage_path>/var/lib/clickhouse/coordination/log</log_storage_path>
- <snapshot_storage_path>/var/lib/clickhouse/coordination/snapshots</snapshot_storage_path>
- <coordination_settings>
- <operation_timeout_ms>10000</operation_timeout_ms>
- <session_timeout_ms>30000</session_timeout_ms>
- <raft_logs_level>trace</raft_logs_level>
- </coordination_settings>
- <raft_configuration>
- <server>
- <id>1</id>
- <hostname>chnode1</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>2</id>
- <hostname>chnode2</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>3</id>
- <hostname>chnode3</hostname>
- <port>9234</port>
- </server>
- </raft_configuration>
- </keeper_server>
- </clickhouse>
复制代码
- macros.xml
- shard值为1,指定了本节点存储分片1,副本1,chnode2里shard的值将变为2
- 这种指定方式可以减少DDL语句复杂度,不用在建表时候再去指定分片分配到哪个节点。
- <clickhouse>
- <macros>
- <shard>1</shard>
- <replica>replica_1</replica>
- </macros>
- </clickhouse>
复制代码
- remote-servers.xml
- remote-servers部分指定了全部集群,replace="true"表示覆盖默认设置里设置的集群。
- 指定了一个集群名为cluster_2S_1R
- 集群使用secret进行加密通讯
- cluster_2S_1R集群有两个分片,每个分片有一个副本。
- internal_replication设置为true表示写入操作时会选择第一个发现的康健副本去写入。
chnode1和chnode2的remote-servers.xml设置雷同。
- <clickhouse>
- <remote_servers replace="true">
- <cluster_2S_1R>
- <secret>mysecretphrase</secret>
- <shard>
- <internal_replication>true</internal_replication>
- <replica>
- <host>chnode1</host>
- <port>9000</port>
- </replica>
- </shard>
- <shard>
- <internal_replication>true</internal_replication>
- <replica>
- <host>chnode2</host>
- <port>9000</port>
- </replica>
- </shard>
- </cluster_2S_1R>
- </remote_servers>
- </clickhouse>
复制代码
- <clickhouse>
- <zookeeper>
- <node index="1">
- <host>chnode1</host>
- <port>9181</port>
- </node>
- <node index="2">
- <host>chnode2</host>
- <port>9181</port>
- </node>
- <node index="3">
- <host>chnode3</host>
- <port>9181</port>
- </node>
- </zookeeper>
- </clickhouse>
复制代码 chnode2设置文件
和chnode1设置雷同
- <clickhouse>
- <logger>
- <level>debug</level>
- <log>/var/log/clickhouse-server/clickhouse-server.log</log>
- <errorlog>/var/log/clickhouse-server/clickhouse-server.err.log</errorlog>
- <size>1000M</size>
- <count>3</count>
- </logger>
- <display_name>clickhouse</display_name>
- <listen_host>0.0.0.0</listen_host>
- <http_port>8123</http_port>
- <tcp_port>9000</tcp_port>
- <interserver_http_port>9009</interserver_http_port>
- </clickhouse>
复制代码
- enable-keeper.xml
- chnode2节点的server_id设置为2,其他雷同
- <clickhouse>
- <keeper_server>
- <tcp_port>9181</tcp_port>
- <server_id>2</server_id>
- <log_storage_path>/var/lib/clickhouse/coordination/log</log_storage_path>
- <snapshot_storage_path>/var/lib/clickhouse/coordination/snapshots</snapshot_storage_path>
- <coordination_settings>
- <operation_timeout_ms>10000</operation_timeout_ms>
- <session_timeout_ms>30000</session_timeout_ms>
- <raft_logs_level>trace</raft_logs_level>
- </coordination_settings>
- <raft_configuration>
- <server>
- <id>1</id>
- <hostname>chnode1</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>2</id>
- <hostname>chnode2</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>3</id>
- <hostname>chnode3</hostname>
- <port>9234</port>
- </server>
- </raft_configuration>
- </keeper_server>
- </clickhouse>
复制代码
- <clickhouse>
- <macros>
- <shard>2</shard>
- <replica>replica_1</replica>
- </macros>
- </clickhouse>
复制代码
chnode1和chnode2的remote-servers.xml设置雷同。
- <clickhouse>
- <remote_servers replace="true">
- <cluster_2S_1R>
- <secret>mysecretphrase</secret>
- <shard>
- <internal_replication>true</internal_replication>
- <replica>
- <host>chnode1</host>
- <port>9000</port>
- </replica>
- </shard>
- <shard>
- <internal_replication>true</internal_replication>
- <replica>
- <host>chnode2</host>
- <port>9000</port>
- </replica>
- </shard>
- </cluster_2S_1R>
- </remote_servers>
- </clickhouse>
复制代码
和chnode1设置雷同
- <clickhouse>
- <zookeeper>
- <node index="1">
- <host>chnode1</host>
- <port>9181</port>
- </node>
- <node index="2">
- <host>chnode2</host>
- <port>9181</port>
- </node>
- <node index="3">
- <host>chnode3</host>
- <port>9181</port>
- </node>
- </zookeeper>
- </clickhouse>
复制代码 chnode3设置文件
和chnode1设置雷同
- <clickhouse>
- <logger>
- <level>debug</level>
- <log>/var/log/clickhouse-server/clickhouse-server.log</log>
- <errorlog>/var/log/clickhouse-server/clickhouse-server.err.log</errorlog>
- <size>1000M</size>
- <count>3</count>
- </logger>
- <display_name>clickhouse</display_name>
- <listen_host>0.0.0.0</listen_host>
- <http_port>8123</http_port>
- <tcp_port>9000</tcp_port>
- <interserver_http_port>9009</interserver_http_port>
- </clickhouse>
复制代码
- enable-keeper.xml
- chnode3节点的server_id设置为3,其他雷同
- <clickhouse>
- <keeper_server>
- <tcp_port>9181</tcp_port>
- <server_id>3</server_id>
- <log_storage_path>/var/lib/clickhouse/coordination/log</log_storage_path>
- <snapshot_storage_path>/var/lib/clickhouse/coordination/snapshots</snapshot_storage_path>
- <coordination_settings>
- <operation_timeout_ms>10000</operation_timeout_ms>
- <session_timeout_ms>30000</session_timeout_ms>
- <raft_logs_level>trace</raft_logs_level>
- </coordination_settings>
- <raft_configuration>
- <server>
- <id>1</id>
- <hostname>chnode1</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>2</id>
- <hostname>chnode2</hostname>
- <port>9234</port>
- </server>
- <server>
- <id>3</id>
- <hostname>chnode3</hostname>
- <port>9234</port>
- </server>
- </raft_configuration>
- </keeper_server>
- </clickhouse>
复制代码 4. 重启clickhouse-server
三台服务器全部实行:
- systemctl restart clickhouse-server
复制代码 5. 集群搭建测试
下面来创建样例分布表,测试下效果:
- 连接chnode1,实行SHOW CLUSTERS
- [root@chnode1 clickhouse]# clickhouse-client --password -h 127.0.0.1
- ClickHouse client version 22.3.19.6 (official build).
- Password for user (default):
- Connecting to 127.0.0.1:9000 as user default.
- Connected to ClickHouse server version 22.3.19 revision 54455.
- clickhouse :) SHOW CLUSTERS
- SHOW CLUSTERS
- Query id: 0ff16c63-3c1e-438d-8fad-1e8e25c42235
- ┌─cluster───────┐
- │ cluster_2S_1R │
- └───────────────┘
复制代码- CREATE DATABASE db1 ON CLUSTER cluster_2S_1R
复制代码- CREATE TABLE db1.table1_dist ON CLUSTER cluster_2S_1R
- (
- `id` UInt64,
- `column1` String
- )
- ENGINE = Distributed('cluster_2S_1R', 'db1', 'table1', rand())
复制代码
- 分别clickhouse-client连接chnode1和chnode2.
chnode1插入:
- INSERT INTO db1.table1 (id, column1) VALUES (1, 'abc');
复制代码 chnode2插入:
- INSERT INTO db1.table1 (id, column1) VALUES (2, 'def');
复制代码- clickhouse :) SELECT * FROM db1.table1_dist;
- SELECT *
- FROM db1.table1_dist
- Query id: 8ce26016-f923-472e-894d-a7a3025a8927
- ┌─id─┬─column1─┐
- │ 1 │ abc │
- └────┴─────────┘
- ┌─id─┬─column1─┐
- │ 1 │ abc │
- └────┴─────────┘
复制代码 Reference List
- https://clickhouse.com/docs/en/architecture/horizontal-scaling
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