alibaba/Sentinel

Eric Zhao

@sczyh30

See introduction for Sentinel 1.7.1 here (in Chinese): https://sentinelguard.io/zh-cn/blog/sentinel-1-7-1-release.html

Eric Zhao

@sczyh30

Hi community, recently we announced the first version of Sentinel Go, which provides out-of-box flow control and system adaptive protection for Go applications. You may refer to https://github.com/alibaba/sentinel-golang and have a try~

迈向云原生，Sentinel Golang 首个版本发布：https://sentinelguard.io/zh-cn/blog/sentinel-golang-v1-go-go-go.html

Eric Zhao

@sczyh30

Hi folks, Sentinel 1.7.2 has been released with Logger SPI support, SOFARPC integration, Zuul 2.x gateway flow control and other enhancements. See release notes for details: https://github.com/alibaba/Sentinel/releases/tag/1.7.2

See introduction for Sentinel 1.7.2 here (in Chinese): https://sentinelguard.io/zh-cn/blog/sentinel-1-7-2-release.html

Leason

@LeasonX

流量接入JIT C2 Compile Thead cpu占用升高，用sentinel的预热能解决么

Pawan

@Prodyte

hey

I am interested in ASOC20

peter zhang

@ddatsh

如何能支持 5秒一次呀

Eric Zhao

@sczyh30

Hi community, Alibaba Summer of Code 2020 has been announced! If you're a student and interested in working on cool features of Sentinel and becoming committers, feel free to contact us! For more information, you can refer to alibaba/Sentinel#1497

Feel free to discuss your favorite idea in the corresponding issue, or open a new issue regarding your cool ideas! Idea list: https://github.com/alibaba/Sentinel/labels/ASoC2020

Eric Zhao

@sczyh30

ASoC 2020 idea list overview: https://github.com/alibaba/Sentinel/wiki/ASoC-Idea-List#asoc-2020-idea-list

Eric Zhao

@sczyh30

Hi folks, Sentinel Go 0.3.0 has been released with circuit breaking support, which is used to provide stability and prevent cascading failures in distributed systems. See release notes for details: https://github.com/alibaba/sentinel-golang/releases/tag/v0.3.0

Sentinel Go 0.3.0 特性介绍文章：https://sentinelguard.io/zh-cn/blog/sentinel-golang-0-3-0-release.html

Harsh Agarwal

@harsh9200

Hello, For ASoC 2020 I would like to improve the C++ Version of Sentinel. I'm trying and testing the whole project. There are a few questions:

How to debug the codebase?

Eric Zhao

@sczyh30

You may refer to the README to build the project and run the demo.

Eric Zhao

@sczyh30

For all ASoC applicants: don't forget to prepare a demo (code snippet) to show your ability regarding your idea and proposal :)

Ronnie Gandhi

@RonnieGandhi

Hi @sczyh30 I am Ronnie Gandhi a Computer Science undergrad from IIT Roorkee I have previously done GSoC19 and have done an intern in 2019 at Microsoft and I am currently also interning there. I am interested in working on the C++ sentinel project and I have cloned , built and ran the https://github.com/alibaba/sentinel-cpp repo. Please inform me about what all things are to be done since it looks like this project was there in SoC2019 as well

Eric Zhao

@sczyh30

For Sentinel C++ you'll need to implement frequent parameter flow control (based on sliding window, token bucket and eviction mechanisms like LRU and LFU) and token client for distributed rate limiting. You'll also need to abstract Sentinel APIs for C projects.

Eric Zhao

@sczyh30

For all potential ASoC applicants: the deadline of proposal is June 30th. Don't forget to prepare your resume, proposal as well as the demo that can show your ability regarding your ideas.

louyuting

@louyuting

Hi community, Sentinel Go 0.4.0 release！In this version, we've brought flow control capability for frequent ("hot spot") parameters, which enables detecting top-N visiting parameters and perform fine-grained rate limiting for every "hot" values (or for some specific values). Currently Sentinel Go supports basic numeric types (various int/uint/float types), bool type and string type. Release notes: https://github.com/alibaba/sentinel-golang/releases/tag/v0.4.0

Thanks for the contributors: @louyuting, @sczyh30

Eric Zhao

@sczyh30

For all potential ASoC applicants: the deadline for proposal submission is June 30th. Don't forget to submit your proposal :)

hexy1989

@hexy1989

A应用调用了C的dubbo接口，B应用调用了C的dubbo接口，只限制A应用调用C，这个应该怎么配置？同一应用内的，已经知道怎么配了。

Eric Zhao

@sczyh30

A应用调用了C的dubbo接口，B应用调用了C的dubbo接口，只限制A应用调用C，这个应该怎么配置？同一应用内的，已经知道怎么配了。

C处限流规则里面来源填 A

Eric Zhao

@sczyh30

Sentinel Go 0.4.0 特性介绍文章：https://sentinelguard.io/zh-cn/blog/sentinel-golang-0-4-0-release.html

Eric Zhao

@sczyh30

Hi community, for students who are planning to take part in Alibaba Summer of Code 2020, please keep in mind that the deadline for proposal submission is today (June 30). You can submit the proposal via the official website:

Go Bears

@mastertiller

Hi everyone! I am Zhou Yanjun(周彦君) from Beijing University of Posts and Telecommunications. I feel very happy to participate in community contributions, it is a great honor to exchange ideas and learn from excellent people in the community. I will try my best to working on this project.

ZhiQiang Gu

@yunfeiyanggzq

Hello everyone, I’m Zhiqiang Gu(github:yunfeiyanggzq), from Beihang University. I am successfully selected for ASoC. Thanks @sczyh30 and community.I am mainly responsible for cluster concurrent flow control(alibaba/Sentinel#1477). Look forward to contributing to the community.

Thanks everyone for your help

Go Bears

@mastertiller

I am in charge of alibaba/Sentinel#748.

Eric Zhao

@sczyh30

@mastertiller @yunfeiyanggzq Welcome to Sentinel community! Look forward to your contributions :)

Tristan

@fengjiagang

hi, I have meet a problem, The monitor line is not smooth, is like a surge line

does any guys know how to fix it ?thanks

limitzhang

@limitzhang

After I modify rules in dashboard, all rules of the corresponding application are cleared. The log shows that the resource name was not received(is null) in the dynamicsentinelproperty, so the rule was rejected. I want to know where the configuration is wrong, thx

Eric Zhao

@sczyh30

@limitzhang Please refer: https://github.com/alibaba/Sentinel/wiki/FAQ#q-控制台正确的规则推送后看不到

You may upgrade your fastjson dependency.

Eric Zhao

@sczyh30

Hi community, we're happy to announce that Sentinel 1.8.0 has been released. This nouveau release ships with countless features and improvements, specifically for circuit breaking. We've made progress on refactoring and improving circuit breaking feature, including arbitrary statistic duration support, half-open recovery, enhanced slow request ratio strategy, state change observer and more. We've also brought various versatile integrations including Java EE (JAX-RS and CDI), Quarkus and HTTP client (Apache HttpClient and OkHttp). Release notes: https://github.com/alibaba/Sentinel/releases/tag/v1.8.0

yosamaru

@yosamaru

hi, this is my iconfusion，link->alibaba/Sentinel#1719

yosamaru

@yosamaru

有GatewayRuleManager.register2Property(property)的demo吗

jacktomname

@jacktomname

Hi 各位大佬好，sentinel 集成apollo 持久化我有一个疑问，客户端集成sentinel apollo database ，我那个客户端本身就集成了Apollo appId 为gateway ,现在我需要新创建一个apollo-sentinel ，然后客户端监听apollo-sentinel 上的变化，但是这时候项目就有两个appId 了，假如我设置了System.setProperty("app.id","apollo-sentinel") 另外一个appId gateway 可以被监听到吗？

@ashur816

Bryce-Huang

@Bryce-huang

想问下，删除限流规则呀？

love477

@love477

看到有sentinel-nodejs的项目了，问下这个项目现在能用了吗？

Sentinel 开源讨论群，1群和2群都满了，还有其他的钉钉群吗？

hanjk1234

@hanjk1234

Sentinel 开源讨论群，1群和2群都满了，还有其他的钉钉群吗？ ~~

Eric Zhao

@sczyh30

@hanjk1234 Sentinel 开源3群（临时群）:31076969

Eric Zhao

@sczyh30

Hi all, Sentienl Go 1.0.0 GA 版本正式发布，标志着 Go 版本正式进入生产可用阶段。Sentinel Go 1.0 版本对齐了 Java 版本核心的高可用防护和容错能力，包括限流、流量整形、并发控制、熔断降级、系统自适应保护、热点防护等特性。同时 Go 版本已覆盖主流开源生态，提供了 Gin、gRPC、go-micro、dubbo-go 等常用微服务框架的适配，并提供了 etcd、Nacos、Consul 等动态数据源支持。Sentinel Go 也在朝着云原生的方向不断演进，1.0 版本中也进行了一些云原生方面的探索，包括 Kubernetes CRD data-source, Kubernetes HPA based on Sentinel metrics 等。欢迎大家体验 GA 版本并一起参与后续版本的演进！

Release notes: https://github.com/alibaba/sentinel-golang/releases/tag/v1.0.0

xuanzhui

@xuanzhui

Sentienl默认的全局规则是什么，限流和降级的默认规则有文档吗

luckyxiaoqiang

@luckyxiaoqiang

Sentienl Go 1.0.1 版本正式发布，包含一些功能改进和 bug fix。Release notes：https://github.com/alibaba/sentinel-golang/releases/tag/v1.0.1

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