系统要求:CentOS 7.2 64 位操作系统
配置 Java 环境
安装 JDK
Zipkin 使用 Java8
yum install java-1.8.-openjdk* -y
安装完成后,查看是否安装成功:
java -version
安装 Zipkin
新建目录
mkdir -p /data/release/zipkin && cd "$_"
下载 Zipkin
wget -O zipkin.jar 'https://search.maven.org/remote_content?g=io.zipkin.java&a=zipkin-server&v=LATEST&c=exec'
启动 Zipkin
java -jar zipkin.jar
Zipkin 默认监听 9411 端口, 使用浏览器访问 http://118.89.65.22:9411 即可看到 Zipkin 自带的图形化界面(外网:请确认此CVM有外网IP且安全组已开通9411端口)。
配置 MySQL 数据持久化方案
Zipkin 支持的持久化方案很多,如: Cassandra, MySQL, Elasticsearch。本实验使用 MySQL 5.7 作为数据持久化方案。
安装 MySQL 5.7
使用 Ctrl + C
退出上个步骤的 Java 进程并下载 rmp 包
wget http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
安装 rpm 包
rpm -Uvh mysql57-community-release-el7-.noarch.rpm
安装 MySQL
yum install mysql-community-server -y
启动 MySQL 服务
systemctl start mysqld.service
设置 MySQL 密码
获取 root 临时密码(下面命令中的密码是教程为您自动生成的,为了方便实验的进行,不建议使用其它密码。如果设置其它密码,请把密码记住,在后续的步骤会使用到)
grep 'temporary password' /var/log/mysqld.log | awk '{print $NF}'
使用上一步的获得的临时密码登入 MySQL
mysql -uroot -p
设置 MySQL 账户 root 密码
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Xx$Zipkin2017';
退出 MySQL, 回到 Bash shell
exit;
初始化 Zipkin 数据库
编写初始化脚本
请在 /data/release/zipkin
目录下创建 zipkin_init.sql,参考下面的内容。
CREATE TABLE IF NOT EXISTS zipkin_spans (
`trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
`trace_id` BIGINT NOT NULL,
`id` BIGINT NOT NULL,
`name` VARCHAR(255) NOT NULL,
`parent_id` BIGINT,
`debug` BIT(1),
`start_ts` BIGINT COMMENT 'Span.timestamp(): epoch micros used for endTs query and to implement TTL',
`duration` BIGINT COMMENT 'Span.duration(): micros used for minDuration and maxDuration query'
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci; ALTER TABLE zipkin_spans ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `id`) COMMENT 'ignore insert on duplicate';
ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`, `id`) COMMENT 'for joining with zipkin_annotations';
ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTracesByIds';
ALTER TABLE zipkin_spans ADD INDEX(`name`) COMMENT 'for getTraces and getSpanNames';
ALTER TABLE zipkin_spans ADD INDEX(`start_ts`) COMMENT 'for getTraces ordering and range'; CREATE TABLE IF NOT EXISTS zipkin_annotations (
`trace_id_high` BIGINT NOT NULL DEFAULT 0 COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64 bit',
`trace_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.trace_id',
`span_id` BIGINT NOT NULL COMMENT 'coincides with zipkin_spans.id',
`a_key` VARCHAR(255) NOT NULL COMMENT 'BinaryAnnotation.key or Annotation.value if type == -1',
`a_value` BLOB COMMENT 'BinaryAnnotation.value(), which must be smaller than 64KB',
`a_type` INT NOT NULL COMMENT 'BinaryAnnotation.type() or -1 if Annotation',
`a_timestamp` BIGINT COMMENT 'Used to implement TTL; Annotation.timestamp or zipkin_spans.timestamp',
`endpoint_ipv4` INT COMMENT 'Null when Binary/Annotation.endpoint is null',
`endpoint_ipv6` BINARY(16) COMMENT 'Null when Binary/Annotation.endpoint is null, or no IPv6 address',
`endpoint_port` SMALLINT COMMENT 'Null when Binary/Annotation.endpoint is null',
`endpoint_service_name` VARCHAR(255) COMMENT 'Null when Binary/Annotation.endpoint is null'
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci; ALTER TABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`, `a_key`, `a_timestamp`) COMMENT 'Ignore insert on duplicate';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`) COMMENT 'for joining with zipkin_spans';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'for getTraces/ByIds';
ALTER TABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT 'for getTraces and getServiceNames';
ALTER TABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT 'for getTraces';
ALTER TABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT 'for getTraces';
ALTER TABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT 'for dependencies job'; CREATE TABLE IF NOT EXISTS zipkin_dependencies (
`day` DATE NOT NULL,
`parent` VARCHAR(255) NOT NULL,
`child` VARCHAR(255) NOT NULL,
`call_count` BIGINT
) ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci; ALTER TABLE zipkin_dependencies ADD UNIQUE KEY(`day`, `parent`, `child`);
登录 Mysql
mysql -u root --password='Xx$Zipkin2017'
创建 Zipkin 数据库
create database zipkin;
切换数据库
use zipkin;
初始化表及索引
source /data/release/zipkin/zipkin_init.sql
执行以下命令会看到zipkin_annotations
, zipkin_dependencies
, zipkin_spans
三张数据表,说明初始化成功了
show tables;
退出 MySQL, 回到 Bash shell
exit
启动 Zipkin
注: 此处默认使用实验生成的密码
cd /data/release/zipkin
STORAGE_TYPE=mysql MYSQL_HOST=localhost MYSQL_TCP_PORT=3306 MYSQL_DB=zipkin MYSQL_USER=root MYSQL_PASS='Xx$Zipkin2017' \
nohup java -jar zipkin.jar &
创建具有数据上报能力的Demo
搭建 NodeJS 环境
curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
yum install nodejs -y
创建Demo目录
创建/data/release/service_a目录
mkdir -p /data/release/service_a && cd "$_"
使用 NPM 安装相关依赖
请在 /data/release/service_a
目录下创建并编辑 package.json,参考下面的内容。
{
"name": "service_a",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {},
"author": "",
"license": "ISC",
"dependencies": {
"express": "^4.15.3",
"zipkin": "^0.7.2",
"zipkin-instrumentation-express": "^0.7.2",
"zipkin-transport-http": "^0.7.2"
}
}
安装相关依赖
npm install
创建并编辑 app.js
请在 /data/release/service_a
目录下创建 app.js,参考下面的内容。
示例代码:/data/release/service_a/app.js
const express = require('express');
const {Tracer, ExplicitContext, BatchRecorder} = require('zipkin');
const {HttpLogger} = require('zipkin-transport-http');
const zipkinMiddleware = require('zipkin-instrumentation-express').expressMiddleware; const ctxImpl = new ExplicitContext();
const recorder = new BatchRecorder({
logger: new HttpLogger( {
endpoint: 'http://127.0.0.1:9411/api/v1/spans'
})
}); const tracer = new Tracer({ctxImpl, recorder}); const app = express(); app.use(zipkinMiddleware({
tracer,
serviceName: 'service-a'
})); app.use('/', (req, res, next) => {
res.send('hello world');
}); app.listen(3000, () => {
console.log('service-a listening on port 3000!')
});
启动服务
node app.js
该服务监听 3000 端口, 使用浏览器访问 http://118.89.65.22:3000 后,看到“hello world” 的文本字样说明服务已经正常工作。
部署完成
查看采集到的追踪数据
大功告成
恭喜您已经完成了搭建基于 ZIPKIN 的数据追踪系统的学习。