Hadoop生态圈

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Hadoop生态圈-CentOs7.5单机部署ClickHouse

作者:尹正杰

版权声明:原创作品,谢绝转载!否则将追究法律责任。

到了新的公司,认识了新的同事,生产环境也得你去适应新的集群环境,我新入职的公司的大数据开发同时并不看好hbase,而是对clickhouse青睐有加,听他们口头把ClickHouse吹的那么的出神入化,听的我是有种迫不及待想要对它一探究竟。

最新的一手资料请参考官网:https://clickhouse.yandex/

一.ClickHouse的独特功能

1>.真正的面向列的DBMS

因为有些系统可以单独存储不同列的值,但由于它们针对其他场景进行了优化,因此无法有效地处理分析查询。例如HBase,BigTable,Cassandra和HyperTable。在这些系统中,您将获得大约每秒十万行的吞吐量,但不会达到每秒数亿行。

值得注意的是,ClickHouse是一个数据库管理系统,而不是一个数据库。ClickHouse允许在运行时创建表和数据库,加载数据和运行查询,而无需重新配置和重新启动服务器。

2>.适用于在线查询

低延迟意味着可以在没有延迟的情况下处理查询,而无需在加载用户界面页面的同一时间提前准备答案。换句话说,在线。

3>.数据复制和数据完整性支持

使用异步多主机复制。写入任何可用副本后,数据将分发到后台的所有剩余副本。系统在不同的副本上维护相同的数据。在大多数故障后自动执行恢复,在复杂情况下 - 半自动执行。

4>.支持近似计算

ClickHouse提供了各种交易性能准确度的方法:

4.1>.聚合函数,用于近似计算不同值,中位数和分位数的数量。

4.2>.基于数据的一部分(样本)运行查询并获得近似结果。在这种情况下,从磁盘中检索的数据比例较少。

4.2>.为有限数量的随机密钥运行聚合,而不是为所有密钥运行聚合。在数据中密钥分发的某些条件下,这在使用较少资源的同时提供了相当准确的结果。

5>.SQL支持

ClickHouse支持基于SQL的声明性查询语言,在许多情况下与SQL标准相同。支持的查询包括GROUP BY,ORDER BY,FROM,IN和JOIN子句中的子查询以及标量子查询。不支持从属子查询和窗口函数。

以上说明并非我个人对ClickHouse的夸张说法,而是摘自官方文档的说明,可能官网对其软件有一定的夸张手法在里面,官网文档请参考:https://clickhouse.yandex/docs/en/

二.部署ClickHouse

推荐的安装方法参考: https://github.com/Altinity/clickhouse-rpm-install。文档写的头头是道,说下载一个安装shell脚本,结果你按照它的方法做会跑出一系列的坑,我在这里就不吐槽了,喜欢被虐的小伙伴可以去试试,我生产环境用的操作系统基本上都是CentOs的操作系统,我参考了网上多位网友的部署方法,找到了一种最简单有效的部署方法,我这里一句把坑给大家踩过了,只要我的按照步骤来部署就能成功!

1>.操作平台介绍

[root@yinzhengjie ~]# ip a | grep  global | awk '{print $2}' | awk -F '/' '{print $1}'
10.1.2.105
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# hostname
yinzhengjie
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# cat /proc/cpuinfo| grep "processor"| wc -l
14
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# cat /proc/cpuinfo| grep "cpu cores"| uniq
cpu cores       : 7
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
2
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
     14  Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# free -m
              total        used        free      shared  buff/cache   available
Mem:          11852        1406        8309         103        2136        9954
Swap:          6015           0        6015
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# free -g
              total        used        free      shared  buff/cache   available
Mem:             11           1           8           0           2           9
Swap:             5           0           5
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# uname -r
3.10.0-862.el7.x86_64
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# uname -m
x86_64
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# cat /etc/redhat-release 
CentOS Linux release 7.5.1804 (Core) 
You have new mail in /var/spool/mail/root
[root@yinzhengjie ~]#

Hadoop生态圈

2>.检查是否支持SSE4.2

[root@yinzhengjie ~]# grep -q sse4_2 /proc/cpuinfo && echo "SSE 4.2 supported" || echo "SSE 4.2 not supported"
SSE 4.2 supported
[root@yinzhengjie ~]#

****Hadoop生态圈


3>.下载依赖包

   下载地址: http://repo.red-soft.biz/repos/clickhouse/stable/el7/

Hadoop生态圈

  我已经将上面的rpm包下载好了,以及需要的依赖包都下载好啦~大家可以直接下载来用即可。百度云链接:https://pan.baidu.com/s/16gPGxOnHKfRZj2ytOil7qQ  密码:rs4u

[root@yinzhengjie download]# ll
total 42916
-rw-r--r-- 1 root root 43945614 Oct 10 20:10 yinzhengjie-clickhouse.tar.gz
[root@yinzhengjie download]# 
[root@yinzhengjie download]# 
[root@yinzhengjie download]# tar zxf yinzhengjie-clickhouse.tar.gz -C ./
[root@yinzhengjie download]# 
[root@yinzhengjie download]# ll
total 42920
drwxr-xr-x 2 root root     4096 Oct 10 20:03 clickhouse
-rw-r--r-- 1 root root 43945614 Oct 10 20:10 yinzhengjie-clickhouse.tar.gz
[root@yinzhengjie download]# 
[root@yinzhengjie download]# cd clickhouse/
[root@yinzhengjie clickhouse]# 
[root@yinzhengjie clickhouse]# ll
total 43080
-rw-r--r-- 1 root root     3048 Oct 10 17:16 clickhouse-client-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root   901472 Oct 10 17:16 clickhouse-compressor-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root  9043256 Oct 10 17:16 clickhouse-debuginfo-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root 33680608 Oct 10 17:18 clickhouse-server-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root     8164 Oct 10 17:16 clickhouse-server-common-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root    49036 Oct 10 18:35 libtool-ltdl-2.4.2-21.el7_2.x86_64.rpm
-rw-r--r-- 1 root root   421792 Oct 10 18:20 unixODBC-2.3.1-11.el7.x86_64.rpm
[root@yinzhengjie clickhouse]# 

4>.安装ClickHouse的依赖及其rpm包

Hadoop生态圈 Hadoop生态圈

[root@yinzhengjie clickhouse]# ll
total 43080
-rw-r--r-- 1 root root     3048 Oct 10 17:16 clickhouse-client-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root   901472 Oct 10 17:16 clickhouse-compressor-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root  9043256 Oct 10 17:16 clickhouse-debuginfo-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root 33680608 Oct 10 17:18 clickhouse-server-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root     8164 Oct 10 17:16 clickhouse-server-common-1.1.54236-4.el7.x86_64.rpm
-rw-r--r-- 1 root root    49036 Oct 10 18:35 libtool-ltdl-2.4.2-21.el7_2.x86_64.rpm
-rw-r--r-- 1 root root   421792 Oct 10 18:20 unixODBC-2.3.1-11.el7.x86_64.rpm
[root@yinzhengjie clickhouse]# 
[root@yinzhengjie clickhouse]# 
You have new mail in /var/spool/mail/root
[root@yinzhengjie clickhouse]# 
[root@yinzhengjie clickhouse]# yum -y localinstall *.rpm
Loaded plugins: fastestmirror
Examining clickhouse-client-1.1.54236-4.el7.x86_64.rpm: clickhouse-client-1.1.54236-4.el7.x86_64
Marking clickhouse-client-1.1.54236-4.el7.x86_64.rpm to be installed
Examining clickhouse-compressor-1.1.54236-4.el7.x86_64.rpm: clickhouse-compressor-1.1.54236-4.el7.x86_64
Marking clickhouse-compressor-1.1.54236-4.el7.x86_64.rpm to be installed
Examining clickhouse-debuginfo-1.1.54236-4.el7.x86_64.rpm: clickhouse-debuginfo-1.1.54236-4.el7.x86_64
Marking clickhouse-debuginfo-1.1.54236-4.el7.x86_64.rpm to be installed
Examining clickhouse-server-1.1.54236-4.el7.x86_64.rpm: clickhouse-server-1.1.54236-4.el7.x86_64
Marking clickhouse-server-1.1.54236-4.el7.x86_64.rpm to be installed
Examining clickhouse-server-common-1.1.54236-4.el7.x86_64.rpm: clickhouse-server-common-1.1.54236-4.el7.x86_64
Marking clickhouse-server-common-1.1.54236-4.el7.x86_64.rpm to be installed
Examining libtool-ltdl-2.4.2-21.el7_2.x86_64.rpm: libtool-ltdl-2.4.2-21.el7_2.x86_64
Marking libtool-ltdl-2.4.2-21.el7_2.x86_64.rpm to be installed
Examining unixODBC-2.3.1-11.el7.x86_64.rpm: unixODBC-2.3.1-11.el7.x86_64
Marking unixODBC-2.3.1-11.el7.x86_64.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package clickhouse-client.x86_64 0:1.1.54236-4.el7 will be installed
---> Package clickhouse-compressor.x86_64 0:1.1.54236-4.el7 will be installed
--> Processing Dependency: libicudata.so.50()(64bit) for package: clickhouse-compressor-1.1.54236-4.el7.x86_64
Determining fastest mirrors
10gen                                                                                                                                                                                       | 2.5 kB  00:00:00     
base                                                                                                                                                                                        | 3.6 kB  00:00:00     
centosplus                                                                                                                                                                                  | 3.4 kB  00:00:00     
epel                                                                                                                                                                                        | 3.2 kB  00:00:00     
extras                                                                                                                                                                                      | 3.4 kB  00:00:00     
updates                                                                                                                                                                                     | 3.4 kB  00:00:00     
(1/3): epel/x86_64/updateinfo                                                                                                                                                               | 948 kB  00:00:00     
(2/3): epel/x86_64/primary                                                                                                                                                                  | 3.6 MB  00:00:01     
(3/3): updates/7/x86_64/primary_db                                                                                                                                                          | 6.0 MB  00:00:01     
epel                                                                                                                                                                                                   12723/12723
--> Processing Dependency: libicui18n.so.50()(64bit) for package: clickhouse-compressor-1.1.54236-4.el7.x86_64
--> Processing Dependency: libicuuc.so.50()(64bit) for package: clickhouse-compressor-1.1.54236-4.el7.x86_64
---> Package clickhouse-debuginfo.x86_64 0:1.1.54236-4.el7 will be installed
---> Package clickhouse-server.x86_64 0:1.1.54236-4.el7 will be installed
---> Package clickhouse-server-common.x86_64 0:1.1.54236-4.el7 will be installed
---> Package libtool-ltdl.x86_64 0:2.4.2-21.el7_2 will be installed
---> Package unixODBC.x86_64 0:2.3.1-11.el7 will be installed
--> Running transaction check
---> Package libicu.x86_64 0:50.1.2-15.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===================================================================================================================================================================================================================
 Package                                            Arch                             Version                                      Repository                                                                  Size
===================================================================================================================================================================================================================
Installing:
 clickhouse-client                                  x86_64                           1.1.54236-4.el7                              /clickhouse-client-1.1.54236-4.el7.x86_64                                  110  
 clickhouse-compressor                              x86_64                           1.1.54236-4.el7                              /clickhouse-compressor-1.1.54236-4.el7.x86_64                              2.9 M
 clickhouse-debuginfo                               x86_64                           1.1.54236-4.el7                              /clickhouse-debuginfo-1.1.54236-4.el7.x86_64                                48 M
 clickhouse-server                                  x86_64                           1.1.54236-4.el7                              /clickhouse-server-1.1.54236-4.el7.x86_64                                  133 M
 clickhouse-server-common                           x86_64                           1.1.54236-4.el7                              /clickhouse-server-common-1.1.54236-4.el7.x86_64                            16 k
 libtool-ltdl                                       x86_64                           2.4.2-21.el7_2                               /libtool-ltdl-2.4.2-21.el7_2.x86_64                                         66 k
 unixODBC                                           x86_64                           2.3.1-11.el7                                 /unixODBC-2.3.1-11.el7.x86_64                                              1.2 M
Installing for dependencies:
 libicu                                             x86_64                           50.1.2-15.el7                                base                                                                       6.9 M

Transaction Summary
===================================================================================================================================================================================================================
Install  7 Packages (+1 Dependent package)

Total size: 192 M
Total download size: 6.9 M
Installed size: 209 M
Downloading packages:
libicu-50.1.2-15.el7.x86_64.rpm                                                                                                                                                             | 6.9 MB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : libtool-ltdl-2.4.2-21.el7_2.x86_64                                                                                                                                                              1/8 
  Installing : unixODBC-2.3.1-11.el7.x86_64                                                                                                                                                                    2/8 
  Installing : clickhouse-server-common-1.1.54236-4.el7.x86_64                                                                                                                                                 3/8 
  Installing : libicu-50.1.2-15.el7.x86_64                                                                                                                                                                     4/8 
  Installing : clickhouse-server-1.1.54236-4.el7.x86_64                                                                                                                                                        5/8 
  Installing : clickhouse-client-1.1.54236-4.el7.x86_64                                                                                                                                                        6/8 
  Installing : clickhouse-compressor-1.1.54236-4.el7.x86_64                                                                                                                                                    7/8 
  Installing : clickhouse-debuginfo-1.1.54236-4.el7.x86_64                                                                                                                                                     8/8 
  Verifying  : clickhouse-debuginfo-1.1.54236-4.el7.x86_64                                                                                                                                                     1/8 
  Verifying  : libtool-ltdl-2.4.2-21.el7_2.x86_64                                                                                                                                                              2/8 
  Verifying  : unixODBC-2.3.1-11.el7.x86_64                                                                                                                                                                    3/8 
  Verifying  : libicu-50.1.2-15.el7.x86_64                                                                                                                                                                     4/8 
  Verifying  : clickhouse-server-1.1.54236-4.el7.x86_64                                                                                                                                                        5/8 
  Verifying  : clickhouse-client-1.1.54236-4.el7.x86_64                                                                                                                                                        6/8 
  Verifying  : clickhouse-compressor-1.1.54236-4.el7.x86_64                                                                                                                                                    7/8 
  Verifying  : clickhouse-server-common-1.1.54236-4.el7.x86_64                                                                                                                                                 8/8 

Installed:
  clickhouse-client.x86_64 0:1.1.54236-4.el7              clickhouse-compressor.x86_64 0:1.1.54236-4.el7       clickhouse-debuginfo.x86_64 0:1.1.54236-4.el7       clickhouse-server.x86_64 0:1.1.54236-4.el7      
  clickhouse-server-common.x86_64 0:1.1.54236-4.el7       libtool-ltdl.x86_64 0:2.4.2-21.el7_2                 unixODBC.x86_64 0:2.3.1-11.el7                     

Dependency Installed:
  libicu.x86_64 0:50.1.2-15.el7                                                                                                                                                                                    

Complete!
[root@yinzhengjie clickhouse]# 

[root@yinzhengjie clickhouse]# yum -y localinstall *.rpm       #直接通过yum安装即可

三.配置clickhouse

1>.备份clickhouse-server配置文件config.xml

[root@yinzhengjie ~]# cp /etc/clickhouse-server/config.xml  /etc/clickhouse-server/config.xml.`date +%F`
[root@yinzhengjie ~]#

2>.修改clickhouse-server配置文件config.xml(指定clickhouse-server的主机地址)

[root@yinzhengjie ~]# sed -i 's#<listen_host>127.0.0.1</listen_host>#<listen_host>10.1.2.105</listen_host>#' /etc/clickhouse-server/config.xml 
[root@yinzhengjie ~]#

Hadoop生态圈

3>.修改clickhouse-server配置文件config.xml(修改默认的9000端口,我们自定义该服务的端口为9999)

[root@yinzhengjie ~]# sed -i 's#<tcp_port>9000</tcp_port>#<tcp_port>9999</tcp_port>#' /etc/clickhouse-server/config.xml 
[root@yinzhengjie ~]# 

Hadoop生态圈

4>.备份clickhouse-server配置文件users.xml

[root@yinzhengjie ~]# cp /etc/clickhouse-server/users.xml /etc/clickhouse-server/users.xml.`date +%F`
[root@yinzhengjie ~]#

**5>.**修改clickhouse-server配置文件users.xml(修改/etc/clickhouse-server/users.xml配置文件的第83行,改地址改为你当前部署的服务器IP地址,不推荐使用主机名!下图是我修改后的值)

Hadoop生态圈

四.clickhouse管理方式

1>.启动clickhouse 

Hadoop生态圈 Hadoop生态圈

[root@yinzhengjie ~]# clickhouse-server --config-file=/etc/clickhouse-server/config.xml
Include not found: clickhouse_remote_servers
Include not found: clickhouse_compression
2018.10.10 20:37:20.997594 [ 1 ] <Warning> Application: Logging to console
2018.10.10 20:37:21.000228 [ 1 ] <Information> : Starting daemon with revision 54236
2018.10.10 20:37:21.000337 [ 1 ] <Information> Application: starting up
2018.10.10 20:37:21.001299 [ 1 ] <Debug> Application: Set max number of file descriptors to 4096 (was 1024).
2018.10.10 20:37:21.001317 [ 1 ] <Debug> Application: Initializing DateLUT.
2018.10.10 20:37:21.001326 [ 1 ] <Trace> Application: Initialized DateLUT with time zone `Asia/Shanghai'.
2018.10.10 20:37:21.048483 [ 1 ] <Debug> Application: Configuration parameter 'interserver_http_host' doesn't exist or exists and empty. Will use 'yinzhengjie' as replica host.
2018.10.10 20:37:21.048676 [ 1 ] <Debug> ConfigReloader: Loading config `/etc/clickhouse-server/users.xml'
2018.10.10 20:37:21.053081 [ 1 ] <Warning> ConfigProcessor: Include not found: networks
2018.10.10 20:37:21.053114 [ 1 ] <Warning> ConfigProcessor: Include not found: networks
2018.10.10 20:37:21.054194 [ 1 ] <Information> Application: Loading metadata.
2018.10.10 20:37:21.055243 [ 1 ] <Information> DatabaseOrdinary (default): Total 0 tables.
2018.10.10 20:37:21.055919 [ 1 ] <Debug> Application: Loaded metadata.
2018.10.10 20:37:21.056089 [ 1 ] <Information> DatabaseOrdinary (system): Total 0 tables.
2018.10.10 20:37:21.057059 [ 1 ] <Information> Application: Listening http://[::1]:8123
2018.10.10 20:37:21.057138 [ 1 ] <Information> Application: Listening tcp: [::1]:9999
2018.10.10 20:37:21.057198 [ 1 ] <Information> Application: Listening interserver: [::1]:9009
2018.10.10 20:37:21.057289 [ 1 ] <Information> Application: Listening http://10.1.2.105:8123
2018.10.10 20:37:21.057420 [ 1 ] <Information> Application: Listening tcp: 10.1.2.105:9999
2018.10.10 20:37:21.057486 [ 1 ] <Information> Application: Listening interserver: 10.1.2.105:9009
2018.10.10 20:37:21.057937 [ 1 ] <Information> Application: Ready for connections.
2018.10.10 20:37:23.048780 [ 2 ] <Debug> ConfigReloader: Loading config `/etc/clickhouse-server/config.xml'
2018.10.10 20:37:23.053196 [ 2 ] <Warning> ConfigProcessor: Include not found: clickhouse_remote_servers
2018.10.10 20:37:23.053332 [ 2 ] <Warning> ConfigProcessor: Include not found: clickhouse_compression

[root@yinzhengjie ~]# clickhouse-server --config-file=/etc/clickhouse-server/config.xml

Hadoop生态圈

2>.查看clickhouse服务是否启动

[root@yinzhengjie ~]# netstat -untalp  | grep 9999
tcp        0      0 10.1.2.105:9999         0.0.0.0:*               LISTEN      23259/clickhouse-se 
tcp6       0      0 ::1:9999                :::*                    LISTEN      23259/clickhouse-se 
[root@yinzhengjie ~]#  

3>.使用客户端链接测试

Hadoop生态圈 Hadoop生态圈

[root@yinzhengjie ~]# clickhouse-client --host=10.1.2.105 --port=9999
ClickHouse client version 1.1.54236.
Connecting to 10.1.2.105:9999.
Connected to ClickHouse server version 1.1.54236.

:) 
:) select now();

SELECT now()

┌───────────────now()─┐
│ 2018-10-10 20:44:14 │
└─────────────────────┘

1 rows in set. Elapsed: 0.067 sec. 

:) 
:) show tables;

SHOW TABLES

Ok.

0 rows in set. Elapsed: 0.003 sec. 

:) 
:) 

[root@yinzhengjie ~]# clickhouse-client --host=10.1.2.105 --port=9999

Hadoop生态圈

4>.关闭clickhouse服务

Hadoop生态圈 Hadoop生态圈

[root@yinzhengjie ~]# ps -aux|grep clickhouse-server | grep -v grep
root     24998  0.1  0.3 319708 43372 pts/1    Sl+  20:48   0:00 clickhouse-server --config-file=/etc/clickhouse-server/config.xml
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# kill -9 `ps -aux|grep clickhouse-server | grep -v grep | awk '{print $2}'`
[root@yinzhengjie ~]# 
You have new mail in /var/spool/mail/root
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# ps -aux|grep clickhouse-server | grep -v grep
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]#

[root@yinzhengjie ~]# kill -9 `ps -aux|grep clickhouse-server | grep -v grep | awk '{print $2}'`

Hadoop生态圈

5>.为clickhouse-server添加守护进程

[root@yinzhengjie ~]# nohup clickhouse-server --config-file=/etc/clickhouse-server/config.xml >/var/log/yinzhengjie-clickhouse.log 2>&1 &           #会在"/var/log"目录下生成一个名称为“yinzhengjie-clickhouse.log”的日志文件
[1] 26619
[root@yinzhengjie ~]# 
[root@yinzhengjie ~]# tail -10f /var/log/yinzhengjie-clickhouse.log 
2018.10.10 20:58:53.981429 [ 1 ] <Information> Application: Listening http://[::1]:8123
2018.10.10 20:58:53.981479 [ 1 ] <Information> Application: Listening tcp: [::1]:9999
2018.10.10 20:58:53.981516 [ 1 ] <Information> Application: Listening interserver: [::1]:9009
2018.10.10 20:58:53.981554 [ 1 ] <Information> Application: Listening http://10.1.2.105:8123
2018.10.10 20:58:53.981590 [ 1 ] <Information> Application: Listening tcp: 10.1.2.105:9999
2018.10.10 20:58:53.981624 [ 1 ] <Information> Application: Listening interserver: 10.1.2.105:9009
2018.10.10 20:58:53.981796 [ 1 ] <Information> Application: Ready for connections.
2018.10.10 20:58:55.973241 [ 2 ] <Debug> ConfigReloader: Loading config `/etc/clickhouse-server/config.xml'
2018.10.10 20:58:55.977391 [ 2 ] <Warning> ConfigProcessor: Include not found: clickhouse_remote_servers
2018.10.10 20:58:55.977455 [ 2 ] <Warning> ConfigProcessor: Include not found: clickhouse_compression
2018.10.10 20:59:09.185410 [ 3 ] <Trace> TCPConnectionFactory: TCP Request. Address: 10.1.2.105:41874
2018.10.10 20:59:09.185660 [ 3 ] <Debug> TCPHandler: Connected ClickHouse client version 1.1.54236, user: default.
2018.10.10 20:59:18.439436 [ 3 ] <Debug> executeQuery: (from 10.1.2.105:41874) select now()
2018.10.10 20:59:18.440437 [ 3 ] <Trace> InterpreterSelectQuery: FetchColumns -> Complete
2018.10.10 20:59:18.440867 [ 3 ] <Debug> executeQuery: Query pipeline:
Expression
 Expression
  One

2018.10.10 20:59:18.441657 [ 3 ] <Information> executeQuery: Read 1 rows, 1.00 B in 0.002 sec., 510 rows/sec., 510.97 B/sec.
2018.10.10 20:59:18.441764 [ 3 ] <Debug> MemoryTracker: Peak memory usage (for query): 1.00 MiB.
2018.10.10 20:59:18.441804 [ 3 ] <Debug> MemoryTracker: Peak memory usage (for user): 1.00 MiB.
2018.10.10 20:59:18.441849 [ 3 ] <Debug> MemoryTracker: Peak memory usage (total): 1.00 MiB.
2018.10.10 20:59:18.441882 [ 3 ] <Information> TCPHandler: Processed in 0.003 sec.

好啦~分享就到这里了,时间过的咋就这么快呢?一不小心就晚上九点多了,关于ClickHouse集群的部署等我后期研究好了也会分享给大家的,我得赶紧走了,不然赶不上地铁啦!晚安,兄弟们!

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