【最佳实践】SequoiaDB对接开源监控工具

刺骨的言语ヽ痛彻心扉 2022-12-27 09:17 173阅读 0赞

本文来自巨杉数据库社区用户，特此感谢社区用户的贡献

### Grafana+InfluxDB+Telegraf+SequoiaDB ###

Grafana作为一款强大的开源的监控软件，可以进行灵活的报表定制与性能监控。用户可以通过时序数据库InfluxDB作为数据源为Grafana提供性能监控数据，同时使用Telegraf作为性能数据采集工具从SequoiaDB中定时采集性能指标，已达到准实时性能监控的目的。

整个框架的搭建非常简单，需要编写代码的仅4行，基本上可以通过合理的配置完成环境的搭建。

本文使用1台阿里云RHEL7环境，并详细标明了每一步用户需要执行的命令。

### 1）安装Telegraf ###

直接通过wget下载安装

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# wget https://dl.influxdata.com/telegraf/releases/telegraf-1.5.0-1.x86\_64.rpm

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# yum localinstall telegraf-1.5.0-1.x86\_64.rpm

### 2）安装InfluxDB ###

直接通过wget下载安装

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# wget https://dl.influxdata.com/influxdb/releases/influxdb-1.4.2.x86\_64.rpm

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# yum localinstall influxdb-1.4.2.x86\_64.rpm

### 3）安装Grafana ###

直接通过wget下载安装

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-4.6.3-1.x86\_64.rpm

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# yum localinstall grafana-4.6.3-1.x86\_64.rpm

### 4）安装SequoiaDB ###

在官网注册下载SequoiaDB后解压，所有参数使用默认即可。

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# ./sequoiadb-2.8.4-linux\_x86\_64-enterprise-installer.run –SMS true

### 5）连接巨杉数据库SequoiaDB SAC进行图形化安装 ###

参考官方文档http://doc.sequoiadb.com/cn/SequoiaDB-cat\_id-1483944500-edition\_id-208

5.1）admin/admin用户名密码登录

![图片][61ce504300ce0f156a718e160250cc2f.png]

5.2）选择右下方一键部署

![图片][1d19f1e305be5030dca6c51879c29763.png]

5.3）添加本机为主机

![图片][5b55d15f6b364428ba424674cfc18d94.png]

5.4）配置单节点单副本最小集群

![图片][01b9d18ba885a5a6296c2253770a6551.png]

5.5）确认配置点击下一步

![图片][bcf84246619ab8e395639db10bef6f52.png]

5.6）启动成功

![图片][2bc9e9d8fe16f54889f118fd23658754.png]

5.7）如果需要SQL接口可以下载并安装SequoiaSQL插件

所有安装参数均使用默认值即可。

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# ./sequoiasql-oltp-2.8.4-x86\_64-enterprise-installer.run

5.7.1）启动SequoiaSQL服务

\# 从root用户切换到sdbadmin用户

\[root@iZ2ze06q07wqluc8htj4pdZ sequoiasqloltp\]\# su - sdbadmin

上一次登录：五 1月  5 13:44:47 CST 2018pts/1 上

\# 创建一个叫做testinst的实例

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ /opt/sequoiasqloltp/bin/sdb\_sql\_ctl addinst testinst -D /home/sdbadmin/sdb\_data

Adding instance testinst ...

\# 启动testinst实例

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ /opt/sequoiasqloltp/bin/sdb\_sql\_ctl start testinst

Starting instance testinst ...

ok (PID: 24206)

\# 创建一个叫做testdb的数据库

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ /opt/sequoiasqloltp/bin/sdb\_sql\_ctl createdb testdb testinst

Creating database testinst ...

\# 开始创建SDB集合空间与集合

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ sdb "db=new Sdb()"

localhost:11810

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ sdb "db.createCS ('testcs')"

localhost:11810.testcs

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ sdb "db.testcs.createCL('testcl')"

localhost:11810.testcs.testcl

\# 创建PGSQL映射表

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ /opt/sequoiasqloltp/bin/psql -p 5432 testdb

psql (9.3.4)

Type "help" for help.

\# 创建Foreign Data Wrapper

testdb=\# create extension sdb\_fdw;

CREATE EXTENSION

\# 创建SequoiaDB服务

testdb=\# create server sdb\_server foreign data wrapper sdb\_fdw options(address '127.0.0.1', service '11810');

CREATE SERVER

\# 创建SequoiaDB映射表，真实表存在于SequoiaDB之内

testdb=\# create foreign table test ( name text, id numeric) server sdb\_server options ( collectionspace 'testcs', collection 'testcl', decimal 'on');

CREATE FOREIGN TABLE

\# 收集一下统计信息

testdb=\# analyze test;

ANALYZE

\# 确认表是空的

testdb=\# select \* from test ;

name | id

\------+----

(0 rows)

\# 写一条数据进去

testdb=\# insert into test values('one', 1);

INSERT 0 1

\# 试着更新一下

testdb=\# update test set id=9 where name='one';

UPDATE 1

\# 然后查看一下

testdb=\# select \* from test ;

name | id

\------+----

one  |  9

(1 row)

5.7.2）向SAC中添加SequoiaSQL服务

点击发现业务

![图片][2eb03803432e0885ee5b90b19dcd443d.png]

选择SequoiaSQL引擎

![图片][aecd80668f0adcce8da2068a59472a9d.png]

填入内网IP地址与端口

![图片][54953c2169b6022065f8e4f55b2f9614.png]

在数据中可以看到相应的表与数据

![图片][3adc568ab3aa23bbdf8ca26d37f4208a.png]

![图片][4bcfdf1e241a77746bda929df115ed3c.png]

### 6）验证SequoiaDB性能监控快照 ###

\# 连接数据库，验证snapshot与REST接口都是通的

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ sdb "db=new Sdb()"

localhost:11810

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ sdb "db.snapshot(SDB\_SNAP\_DATABASE)"

"TotalNumConnects": 1,

"TotalDataRead": 16187,

"TotalIndexRead": 238,

"TotalDataWrite": 15,

"TotalIndexWrite": 16,

"TotalUpdate": 8,

"TotalDelete": 0,

"TotalInsert": 7,

"ReplUpdate": 0,

"ReplDelete": 0,

"ReplInsert": 0,

"TotalSelect": 9706,

"TotalRead": 9738,

"TotalReadTime": 0,

"TotalWriteTime": 0,

"freeLogSpace": 1644167168,

"vsize": 4315893760,

"rss": 71836,

"fault": 2,

"TotalMapped": 1607335936,

"svcNetIn": 761,

"svcNetOut": 1396,

"shardNetIn": 1564857,

"shardNetOut": 1296727,

"replNetIn": 0,

"replNetOut": 0,

"ErrNodes": \[\]

Return 1 row(s).

\[sdbadmin@iZ2ze06q07wqluc8htj4pdZ ~\]$ curl -d "cmd=snapshot database" "172.17.230.225:11814"

\{ "errno": 0 \}\{ "TotalNumConnects": 1.0, "TotalDataRead": 19679.0, "TotalIndexRead": 242.0, "TotalDataWrite": 15.0, "TotalIndexWrite": 16.0, "TotalUpdate": 8.0, "TotalDelete": 0.0, "TotalInsert": 7.0, "ReplUpdate": 0.0, "ReplDelete": 0.0, "ReplInsert": 0.0, "TotalSelect": 11804.0, "TotalRead": 11836.0, "TotalReadTime": 0.0, "TotalWriteTime": 0.0, "freeLogSpace": 1644167168.0, "vsize": 4315893760.0, "rss": 71842.0, "fault": 2.0, "TotalMapped": 1607335936.0, "svcNetIn": 761.0, "svcNetOut": 1396.0, "shardNetIn": 1920028.0, "shardNetOut": 1672847.0, "replNetIn": 0.0, "replNetOut": 0.0, "ErrNodes": \[\] \}

### 7）启动influxdb与telegraf ###

\# 启动influxdb服务

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# systemctl restart influxdb

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# ps -elf | grep influxdb

4 S influxdb 22288     1  1  80   0 - 55908 futex\_ 14:09 ?        00:00:00 /usr/bin/influxd -config /etc/influxdb/influxdb.conf

0 S root     22299 18679  0  80   0 - 28169 pipe\_w 14:09 pts/1    00:00:00 grep --color=auto influxdb

\# 进入influxdb并创建数据库

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# influx

Connected to http://localhost:8086 version 1.4.2

InfluxDB shell version: 1.4.2

> create database "telegraf"

> show databases

name

\----

telegraf

\_internal

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# systemctl restart telegraf

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# ps -elf | grep telegraf

4 S telegraf 22195     1  1  80   0 - 23463 futex\_ 14:08 ?        00:00:00 /usr/bin/telegraf -config /etc/telegraf/telegraf.conf -config-directory /etc/telegra/telegraf.d

0 S root     22206 18679  0  80   0 - 28169 pipe\_w 14:08 pts/1    00:00:00 grep --color=auto telegraf

\# telegraf启动以后确认influxdb可以被正常写入监控数据

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# influx

Connected to http://localhost:8086 version 1.4.2

InfluxDB shell version: 1.4.2

> use telegraf

Using database telegraf

> select \* from cpu limit 10

time                cpu       host                    usage\_guest usage\_guest\_nice usage\_idle        usage\_iowait        usage\_irq usage\_nice usage\_softirq usage\_steal usage\_system        usage\_user

\----                ---       ----                    ----------- ---------------- ----------        ------------        --------- ---------- ------------- ----------- ------------        ----------

1515132510000000000 cpu-total iZ2ze06q07wqluc8htj4pdZ 0           0                98.89834752131219 0.10015022533794657 0         0          0             0           0.35052578868309764 0.650976464697222

1515132510000000000 cpu0      iZ2ze06q07wqluc8htj4pdZ 0           0                98.69608826480209 0.10030090270805804 0         0          0             0           0.3009027081244592  0.9027081243733776

1515132510000000000 cpu1      iZ2ze06q07wqluc8htj4pdZ 0           0                99.09999999999854 0.09999999999990905 0         0          0             0           0.3999999999999915  0.40000000000006253

### 8）使用exec插件收集SequoiaDB性能指标 ###

这里是本框架中唯一需要编写代码的地方，总共四行代码，分别为test.sh与test.js。

\# 创建test.sh与test.js程序用于定期收集SequoiaDB性能指标

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# cat /tmp/test.sh

\#!/bin/sh

/opt/sequoiadb/bin/sdb -f /tmp/test.js | sed '/Return 1/d'

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# cat /tmp/test.js

var db = new Sdb();

db.snapshot(SDB\_SNAP\_DATABASE);

\# telegraf使用自己的用户执行，因此在root下创建的脚本需要给全局执行权限

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# chmod 777 /tmp/test.sh

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# chmod 777 /tmp/test.js

\# 在telegraf配置中配置telegraf.conf，反注释inputs.exec并编辑相关内容

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# vi /etc/telegraf/telegraf.conf

……

\[\[inputs.exec\]\]

commands = \["/tmp/test.sh"\]

timeout = "5s"

data\_format = "json"

\# 验证配置文件，看到inputs.exec类型的数据确实收集了

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# telegraf --test

2018/01/05 16:02:27 I! Using config file: /etc/telegraf/telegraf.conf

\* Plugin: inputs.mem, Collection 1

> mem,host=iZ2ze06q07wqluc8htj4pdZ available=3092996096i,used=882089984i,buffered=66174976i,used\_percent=22.190462451570358,available\_percent=77.80953754842965,total=3975086080i,cached=3042557952i,active=2068545536i,inactive=1559457792i,slab=164098048i,free=133742592i 1515139347000000000

……

\* Plugin: inputs.exec, Collection 1

> exec,host=iZ2ze06q07wqluc8htj4pdZ TotalUpdate=8,TotalRead=12064,TotalDataWrite=15,shardNetOut=1795359,svcNetOut=1396,replNetIn=0,TotalWriteTime=0,vsize=4525711360,replNetOut=0,TotalIndexRead=242,TotalSelect=12032,svcNetIn=761,TotalIndexWrite=16,ReplInsert=0,TotalNumConnects=1,fault=2,ReplUpdate=0,ReplDelete=0,TotalReadTime=0,TotalInsert=7,rss=72156,TotalDelete=0,TotalDataRead=20059,freeLogSpace=1644167168,shardNetIn=2034612,TotalMapped=1607335936 1515139348000000000

\* Plugin: inputs.kernel, Collection 1

> kernel,host=iZ2ze06q07wqluc8htj4pdZ boot\_time=1515116065i,processes\_forked=67543i,interrupts=11615115i,context\_switches=20009921i 1515139348000000000

……

\# 重启telegraf服务

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# systemctl restart telegraf

\# 确认数据每十秒钟录入influxdb

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# influx

Connected to http://localhost:8086 version 1.4.2

InfluxDB shell version: 1.4.2

> use telegraf

Using database telegraf

> select \* from exec

time                ReplDelete ReplInsert ReplUpdate TotalDataRead TotalDataWrite TotalDelete TotalIndexRead TotalIndexWrite TotalInsert TotalMapped TotalNumConnects TotalRead TotalReadTime TotalSelect TotalUpdate TotalWriteTime fault freeLogSpace host                    replNetIn replNetOut rss   shardNetIn shardNetOut svcNetIn svcNetOut vsize

\----                ---------- ---------- ---------- ------------- -------------- ----------- -------------- --------------- ----------- ----------- ---------------- --------- ------------- ----------- ----------- -------------- ----- ------------ ----                    --------- ---------- ---   ---------- ----------- -------- --------- -----

1515139522000000000 0          0          0          20064         15             0           242            16              7           1607335936  1                12067     0             12035       8           0              2     1644167168   iZ2ze06q07wqluc8htj4pdZ 0         0          72156 2036130    1796971     761      1396      4525711360

1515140020000000000 0          0          0          20069         15             0           242            16              7           1607335936  1                12070     0             12038       8           0              2     1644167168   iZ2ze06q07wqluc8htj4pdZ 0         0          72156 2037648    1798583     761      1396      4525711360

### 9）启动grafana ###

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# systemctl start grafana-server

\[root@iZ2ze06q07wqluc8htj4pdZ ~\]\# ps -elf | grep grafana

4 S grafana   5708     1  5  80   0 - 74671 futex\_ 16:57 ?        00:00:00 /usr/sbin/grafan-server --config=/etc/grafana/grafana.ini --pidfile=/var/run/grafana/grafana-server.pid cfg:default.paths.logs=/var/log/grafana cfg:default.paths.data=/var/lib/grafana cfg:default.paths.plugins=/var/lib/grafana/plugins

0 S root      5725  1702  0  80   0 - 28169 pipe\_w 16:57 pts/1    00:00:00 grep --color=auto grafana

连接3000端口可以看到

![图片][8b6c6243032020912b8d7881776c5069.png]

使用admin/admin登录后添加influxdb数据源

![图片][1c5853e36ef1caefe26d1568600b6767.png]

点击Save&Test通过测试

### 10）制定报表 ###

在Dashboard中创建一个新的Panel，数据源选择刚刚添加的SequoiaDB，然后在指标中配置好4个指标TotalDataRead、TotalDataWrite、TotalIndexRead、TotalIndexWrite。

![图片][ab223af8fb919811ba4a4390e14be44d.png]

分别各做一个table和一个折线图

![图片][c8cd237a580e47ee8b90584853ed7502.png]

### 11）小结 ###

至此为止，我们通过使用InfluxDB与Telegraf，仅编写4行代码就将Grafana监控软件与SequoiaDB成功对接。感兴趣的读者甚至可以编写并提交针对SequoiaDB的Telegraf inputs插件，使得其他用户不需要编写脚本即可直接获得SequoiaDB的性能指标。

[61ce504300ce0f156a718e160250cc2f.png]: /images/20221120/a5df1fca829749a8969109f1b3822379.png
[1d19f1e305be5030dca6c51879c29763.png]: /images/20221120/85ddbd8772464a1c8612e1685f05535b.png
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[54953c2169b6022065f8e4f55b2f9614.png]: https://img-blog.csdnimg.cn/img_convert/54953c2169b6022065f8e4f55b2f9614.png
[3adc568ab3aa23bbdf8ca26d37f4208a.png]: https://img-blog.csdnimg.cn/img_convert/3adc568ab3aa23bbdf8ca26d37f4208a.png
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[c8cd237a580e47ee8b90584853ed7502.png]: https://img-blog.csdnimg.cn/img_convert/c8cd237a580e47ee8b90584853ed7502.png