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kafka

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flink-learning

flink learning blog. http://www.54tianzhisheng.cn/ 含 Flink 入门、概念、原理、实战、性能调优、源码解析等内容。涉及 Flink Connector、Metrics、Library、DataStream API、Table API & SQL 等内容的学习案例,还有 Flink 落地应用的大型项目案例(PVUV、日志存储、百亿数据实时去重、监控告警)分享。欢迎大家支持我的专栏《大数据实时计算引擎 Flink 实战与性能优化》

  • Updated Jun 4, 2022
  • Java
Barenboim
Barenboim commented May 17, 2022

我们欢迎大家自由的提问,包括但不限于任何业务需求,方案设计和workflow各种使用细节和实现原理。
但我也建议大家采用一种smart的提问方式,可以参考XY Problem问题:https://xyproblem.info/
XY Problem倡导大家提问时,一定尽可能的描述自己的原始需求,也就是说清楚一件事:你到底想干啥。而不是描述你试图使用的方案,然后让我们帮你解决方案里的问题。因为你采用的方案可能一开始就是错误的。而我们只能一直猜测,你到底想解决什么问题。沟通效率非常低。
例如这个issue(提问者是我们的好朋友,workflow还没开源就在用了。不用怕伤害他:)
sogou/workflow#658
就是一个典型的例子,用户问如何通过派生WFServer的new_connection函数获得proxy

good first issue
gimmic
gimmic commented Sep 27, 2019

I have noticed when ingesting backlog(older timestamped data) that the "Messages per minute" line graph and "sources" data do not line up.

The Messages per minute appear to be correct for the ingest rate, but the sources breakdown below it only show messages for each type from within the time window via timestamp. This means in the last hour if you've ingested logs from 2 days ago, the data is

hanlinking
hanlinking commented May 23, 2022

我们在使用过程出现了一个问题,就是当我们使用rabbitmq作为队列,并且在使用过程中中断队列,然后重新启动,有一定的概率导致无限的重连。
image
测试上是部署k8s环境,有两个pod,rabbitmq掉线重连后,其中一个pod正常了,但是另外一个pod一直都在尝试重连
使用代码也比较简单

services.AddCap(option =>
        {
            // 消息存储
            option.UseEntityFramework<FrontDbContext>(o => o.Schema = "FRON
abraham-leal
abraham-leal commented Jun 7, 2022

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Currently, ksqlDB causes a full topic scan whenever performing a pull query over a stream. This is inefficient when looking up specific sets of data, but necessary due to how pull queries are implemented over streams.

**Describe the

enhancement good first issue performance query-engine
redpanda
watermill
xorcare
xorcare commented Nov 22, 2021

This comment says that the message ID is optional,
but for SQL transport it is a mandatory attribute,
in turn it causes misunderstanding?

Is it possible to fix it or did I get something wrong?

https://github.com/ThreeDotsLabs/watermill/blob/b9928e750ba673cf93d442db88efc04706f67388/message/message.go#L20
https://github.com/ThreeDotsLabs/watermill/blob/b9928e750ba673cf93d442db88efc04706f6

help wanted good first issue S

Surging is a micro-service engine that provides a lightweight, high-performance, modular RPC request pipeline. support Event-based Asynchronous Pattern and reactive programming ,The service engine supports http, TCP, WS,Grpc, Thrift,Mqtt, UDP, and DNS protocols. It uses ZooKeeper and Consul as a registry, and integrates it. Hash, random, polling, Fair Polling as a load balancing algorithm, built-in service governance to ensure reliable RPC communication, the engine contains Diagnostic, link tracking for protocol and middleware calls, and integration SkyWalking Distributed APM

  • Updated May 16, 2022
  • C#

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