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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
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
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
quick123.net
@quick123official
1
wangxw
@christophe-liwei
能支持采集metrics到prometheus吗
Ice_layer
@FlyingPigHasDream
还有sentinel 钉钉群嘛
Eric Zhao
@sczyh30
@FlyingPigHasDream 31076969
begemot63
@begemot63
I use sentinel to implement resiliency for by web services.
I found it is very difficult to write multiple tests for the same resource with different rules because sentinel keeps context between tests. I need to set to all counters before each test begins.
For example sentinel_block_requests_total is Not null when the second test is running or node. totalException() is not 0. Do you have APi which reset node contexts and counters ?
徐志伟
@JuwanXu
各位大佬,我有一个疑问,sentinel Java版里面有预热逻辑我的理解为 Java 需要启动JVM进程来运行中间代码,所以需要预热。但是 Golang 版的就直接编译为二进制可执行文件,是否还需要有预热的逻辑?
徐志伟
@JuwanXu
如果理解的有问题还请各位大佬指教
taidixiong
@taidixiong
golang 版本的支持dashboard 心态么?
golang 版本的支持dashboard 心跳么?
Eric Zhao
@sczyh30
@taidixiong It's not planned yet. You may leverage dynamic data-source modules in Sentinel Go.
Eric Zhao
@sczyh30

Hi all, Sentinel 1.8.1 has been released with plenty of feature improvements and bug fixes. Release notes: https://github.com/alibaba/Sentinel/releases/tag/1.8.1

Thanks for all contributors: @brothelul, @cdfive, @dani3lWong, @evasnowind, @HelloCoCooo, @jasonjoo2010, @JiangZian, @JieGz, @John-Chan, @liuming-dev, @mikawudi, @nickChenyx, @odidev, @polarbear567, @PeineLiang, @samuelxw, @sczyh30, @vipweihua, @wzg923, @xierunzi, @xierunzi, @xuande, @yunfeiyanggzq, @zcai2, @zhangkai253, @zhangxn8, @zhouyongshen

YunWenBo
@YunWenBo
问一下,使用集群控流时,控制台中机器列表都显示健康状态,Token Server正常,但是 Token Client都处于未连接状态是什么原因呢?
Eric Zhao
@sczyh30

问一下,使用集群控流时,控制台中机器列表都显示健康状态,Token Server正常,但是 Token Client都处于未连接状态是什么原因呢?

确保 token server/client 分配关系正确

bingxiaomao2019
@bingxiaomao2019
请问一下,对于已经发起的调用,如何在timeout之后,终止请求呢?类似hystrix那要,抛出一个HystrixTimeout异常。