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APM, Application Performance Monitoring System

Home Page: https://skywalking.apache.org/

License: Apache License 2.0

Java 98.24% Shell 0.51% Batchfile 0.09% Python 0.12% Makefile 0.08% ANTLR 0.29% FreeMarker 0.14% PHP 0.04% Go 0.10% TypeScript 0.03% JavaScript 0.02% Lua 0.25% Dockerfile 0.10%

skywalking observability apm service-mesh dapper distributed-tracing web-performance metrics logging prometheus

skywalking's Introduction

Apache SkyWalking

SkyWalking: an APM (Application Performance Monitoring) system, especially designed for microservices, cloud native and container-based architectures.

Abstract

SkyWalking is an open-source APM system that provides monitoring, tracing and diagnosing capabilities for distributed systems in Cloud Native architectures.

Distributed Tracing
- End-to-end distributed tracing. Service topology analysis, service-centric observability and APIs dashboards.
Agents for your stack
- Java, .Net Core, PHP, NodeJS, Golang, LUA, Rust, C++, Client JavaScript and Python agents with active development and maintenance.
eBPF early adoption
- Rover agent works as a monitor and profiler powered by eBPF to monitor Kubernetes deployments and diagnose CPU and network performance.
Scaling
- 100+ billion telemetry data could be collected and analyzed from one SkyWalking cluster.
Mature Telemetry Ecosystems Supported
- Metrics, Traces, and Logs from mature ecosystems are supported, e.g. Zipkin, OpenTelemetry, Prometheus, Zabbix, Fluentd
Native APM Database
- BanyanDB, an observability database, created in 2022, aims to ingest, analyze and store telemetry/observability data.
Consistent Metrics Aggregation
- SkyWalking native meter format and widely known metrics format(OpenTelemetry, Telegraf, Zabbix, e.g.) are processed through the same script pipeline.
Log Management Pipeline
- Support log formatting, extract metrics, various sampling policies through script pipeline in high performance.
Alerting and Telemetry Pipelines
- Support service-centric, deployment-centric, API-centric alarm rule setting. Support forwarding alarms and all telemetry data to 3rd party.

Live Demo

Find the SkyWalking live demo with native UI and Grafana, and screenshots on our website.
Follow the showcase to set up a preview deployment quickly.

Documentation

Official documentation

Downloads

Please head to the releases page to download a release of Apache SkyWalking.

Compiling project

Follow this document.

Code of conduct

This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please follow the REPORTING GUIDELINES to report unacceptable behavior.

Contact Us

Mail list: [email protected]. Mail to [email protected], follow the reply to subscribe the mail list.
Send Request to join SkyWalking slack mail to the mail list([email protected]), we will invite you in.
For Chinese speaker, send [CN] Request to join SkyWalking slack mail to the mail list([email protected]), we will invite you in.
Twitter, ASFSkyWalking
bilibili B站视频
掘金

Our Users

Hundreds of companies and organizations use SkyWalking for research, production, and commercial purposes. Visit our website to find the user page.

License

Apache 2.0 License.

skywalking's People

Contributors

Stargazers

Watchers

Forkers

qilifan cailin186 songhn konglingjuanyi xieyuan1988 trentluo kangzhenkang wyzssw trentsky mackstone marqio chinarefers fengguowei colinluo sunbaojun163 xppx123 hitzzg2 ericyesz dalufine shelbyyu rucky2013 aobin hai8108 kris1985 xyz-dev chakra-coder zhengzihui lviiii zjnxyz flowergarden happygao521 geekhuyang gavinljj sfilyh guzhixiong gaopengxiang417 xiangyong zzvv qianlan2012 kenchen1101 195car hellozhen oldshipmaster hongliangpan xclouded imloama fysoft2006 keven0706 fubiyu dazi005 sdgdsffdsfff bxvs888 ichencloud javaprober cdjg35 stardustliu michael-ancestor tomzhang nilvxingren blackimpl zsjohny ranran472970026 littleyang chengc017 chenk008 ycaihua yyzz1987431 huangdongrong devenlu supertest xushaomin jefferry ccitzxw youblade liwenxian linyu123 tangkai007 zfcisbest vwyuheng 654894017 fuhp bryanchou hiview richardy2012 ghu212 wangen2009 sbomb jgchen liyong1028826685 yusong666666 feilaoda tomdev2008 wsw2008new zhoud777 ppbao plutogeek guoweihdu luoyaogui mangolms hao707822882

skywalking's Issues

byte-buddy引入，增加新的启动和增强机制

通过byte-buddy和配置文件的自动加载，提供通过修改main入口，对指定类、RPC进行切面监控的能力。
后续调整HttpClient、jdbc等已存在的插件。
大规模降低程序侵入性。提供更为优雅的追踪插入模式。
@acurtain

server应用收集埋点信息时，缺少连接验证机制

服务端应具有客户端校验机制，防止网络异常包或非法数据包影响处理结果。
实现机制待讨论。

createAPP大小写错误

文件名称：skywalking-webui\src\main\webapp\ftl\app\createAPP.ftl
Controller:
public String create() { return "app/createApp"; }

windows下不区分大小写，正常。
linux下异常：

Could not resolve view with name 'app/createApp' in servlet with name 'springmvc'

sdk和server的buffer缓存索引号index在到达整数正数最大边界后，容易造成数据覆盖

server和sdk的缓冲队列，都使用原子整数的自增来维持队列连续性。
当整数超过正数最大值时，会到达负数最大值，此时索引值会递减，造成队列数据容易覆盖。

server的Config.Alarm.ALARM_OFF_FLAG处理不正确

目前的Config.Alarm.ALARM_OFF_FLAG的注释描述为：是否关闭告警
但目前程序没有依据提字段进行处理。含义错误。

sdk服务端应建立心跳，防止服务端重启后，socket连接无法断开重连的问题

服务端应对所有连接的客户端间隔时间N后，发送心跳，
客户端在N*M的时间内（M为设置的间隔，推荐5-10），如果没有收到服务端会送的心跳，则断言连接断开，主动断开socket，并重连。

DataSenderFactory中的DataSenderChecker对于按百分比选择连接，使用更合理的分散算法与策略

百分比会默认选择靠前的连接，会造成集群中的服务器连接数量不均衡。
服务器列表靠前的服务器，连接数过大。

webui移除iframe风格，修改部分页面风格

webui使用整套全新的bootstrap样式，同时移除两级iframe。提供更好的页面风格和浏览器兼容性。

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offset文件中的无用文件没有被删除

offset文件中的无用文件没有被删除，需要在启动服务的时候，与目录夹下的文件进行校验。

目前bean的增强在TracingEnhanceProcessor.postProcessAfterInitialization中。
@transactional的Bean由于会被Spring的JDKDynamicAOP给代理了，所以传入到TracingEnhanceProcessor类中就只能获取到Proxy对象(如：实际传入名称为com.sun.proxy.$Proxy17)，并非Bean的实际对象，所以导致无法追踪。
但是如果将增强Bean的功能放到postProcessBeforeInitialization方法，会造成类名被修改，可能会造成Dubbo无法合理的识别类名并发布服务。

Collection服务和Alaram服务启动脚本只能在bin目录下执行

Collection服务和Alaram服务启动脚本只能在bin目录下执行，否则会出错。需要增强。

Skywalking 服务端无法保存将Span保存到HBase中

由于服务端Chain类中有一个index的值没有及时的更新，导致Chain永远都执行第一个Chain。导致Span无法保存到HBase中，

cid分析时，应增加链路中jdbc的特征性错误分析

对于cid元数据，应分析cid链路的合理性
针对包含jdbc的链路，可以增加以下识别模式：1.jdbc在应用内必须包含close，2.jdbc的select update delete不应该不包含条件，或使用没有动态参数的sql

SDK切换服务端机制失效，需重启之后才能生效

由于当前的DataSender判断Channel已经失效并没有将当前的DataSender的状态置为Failed，导致切换服务失效。

服务启动时应该自检

告警应用和采集服务应用启动时候需要自检配置文件，HBase，Redis是否存活或存在.

告警信息中希望除TID外，增加异常的概要描述

目前的告警中，只展现了TID，并提交查看链接。
使用者反映，异常不明确，需要点击进入查看细节。

com.ai.cloud.skywalking.plugin.spring.TracingEnhanceProcessor支持除标注外的其他使用方式

支持通过设置包名、类名的方法进行JVM监控
TracingEnhanceProcessor可以通过配置文件中，增加包名和类名列表，代码标注，更好的支持监控。减少对代码的侵入性。

客户端发送是否需要通过gzip/zlib等降低发送压力

需要测试压缩算法的效率，以及压缩比是否能满足要求，且不足与造成客户端CPU过大的压力。

dubbo埋点的类名和方法名之间缺少分隔符

当前展示信息：
dubbo://192.168.1.114:10880/com.ai.cloud.skywalking.example.resource.dubbo.interfaces.checker.IResourceCheckcheckResource(ResourceInfo)
应为：
IResourceCheck.checkResource

trace API异常导致业务线程运行中断

trace 异常不应该直接抛出来影响业务系统的正常运行

授权文件的配置可以根据不同的选项可以支持各种网络环境

目前生成的授权文件中的日志手机的服务器只能生成内网地址，不支持生成各种网络环境的地址生成，需要支持的网络环境有：内网，外网。

告警邮件未设置抄送人，发送失败

告警规则中未设置抄送人时，数据库字段保存为
{"period":1,"mailInfo":{"mailTo":["[email protected]"],"mailCc":[""]}}
mailCc为空字符串

skywalking-alarm\src\main\java\com\ai\cloud\skywalking\alarm\procesor\AlarmMessageProcessor.java中
process方法及MailUtil.sendMail中均未校验该字段

skywalking-alarm\src\main\java\com\ai\cloud\skywalking\alarm\util\MailUtil.java中
new InternetAddress(ccList[i])时异常：
javax.mail.internet.AddressException: Illegal address

Skywalking客户端连接服务端要SSL认证

Skywalking客户端需连接服务端要SSL认证，恶意的扫描可能造成服务端处理异常，导致服务运行非常慢

新版页面，应用新加两个字段

新版页面，应用新加两个字段：app_desc, update_time, 1.02b版本之前需要执行alert脚本。

server提供按照埋点类型，进行内容分析并告警的能力

skywalking server在入库后，能对埋点内容进行分析。并按照埋点分类，进行告警以及相关处理。

webui点击查询按钮会调用后台两次
tid=1.0b.1460446828224.d6a49e3.17518.71.123，页面查询springmvc出现406错误。