1. 配置 Java 環境
安裝 JDK
Zipkin
使用 Java8
yum install java-1.8.0-openjdk* -y
安裝完成後,查看是否安裝成功:
java -version
2. 安裝 Zipkin
新建目錄
mkdir -p /data/release/zipkin && cd "$_"
下載 Zipkin
wget -O zipkin.jar 'https://search.maven.org/remote_content?g=io.zipkin.java&a=zipkin-server&v=LATEST&c=exec'
啓動 Zipkin
java -jar zipkin.jar
Zipkin 默認監聽 9411 端口, 使用瀏覽器訪問 http://yourip:9411 或 http://yourdomain.com:9411 即可看到 Zipkin 自帶的圖形化界面
3. 配置 MySQL 數據持久化方案
Zipkin 支持的持久化方案很多,如: Cassandra, MySQL, Elasticsearch。本實驗使用 MySQL 5.7 作爲數據持久化方案。
安裝 MySQL 5.7
使用 Ctrl + C
退出上個步驟的 Java 進程並下載 rmp 包
wget http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
安裝 rpm 包
rpm -Uvh mysql57-community-release-el7-9.noarch.rpm
安裝 MySQL
yum install mysql-community-server -y
啓動 MySQL 服務
systemctl start mysqld.service
設置 MySQL 密碼
獲取 root
臨時密碼
grep 'temporary password' /var/log/mysqld.log | awk '{print $NF}'
使用上一步的獲得的臨時密碼登入 MySQL
mysql -uroot -p
設置 MySQL 賬戶 root
密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY 'Xx$Zipkin2017';
退出 MySQL, 回到 Bash shell
exit;
初始化 Zipkin 數據庫
編寫初始化腳本
請在 /data/release/zipkin
目錄下創建 zipkin_init.sql
,參考下面的內容。
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`);
登錄 Mysql
mysql -u root --password='Xx$Zipkin2017'
創建 Zipkin 數據庫
create database zipkin;
切換數據庫
use zipkin;
初始化表及索引
source /data/release/zipkin/zipkin_init.sql
執行以下命令會看到zipkin_annotations
, zipkin_dependencies
, zipkin_spans
三張數據表,說明初始化成功了
show tables;
退出 MySQL, 回到 Bash shell
exit
啓動 Zipkin
注: 此處默認使用教程生成的密碼
cd /data/release/zipkin
STORAGE_TYPE=mysql MYSQL_HOST=localhost MYSQL_TCP_PORT=3306 MYSQL_DB=zipkin MYSQL_USER=root MYSQL_PASS='Xx$Zipkin2017' \
nohup java -jar zipkin.jar &
4. 創建具有數據上報能力的Demo
搭建 NodeJS 環境
curl --silent --location https://rpm.nodesource.com/setup_8.x | sudo bash -
yum install nodejs -y
創建Demo目錄
創建 /data/release/service_a
目錄
mkdir -p /data/release/service_a && cd "$_"
使用 NPM 安裝相關依賴
請在 /data/release/service_a
目錄下創建並編輯 package.json
,參考下面的內容。
{
"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"
}
}
安裝相關依賴
npm install
創建並編輯 app.js
請在 /data/release/service_a
目錄下創建 app.js
,參考下面的內容。
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!')
});
啓動服務
node app.js
該服務監聽 3000
端口, 使用瀏覽器訪問 http://yourip:3000 或 http://yourdomain.com:3000 後,看到“hello world” 的文本字樣說明服務已經正常工作
5. 部署完成