- 2024-07-187.kafka中的消费语义、幂等性
目录概述kafka中幂等性支持配置原理概述 kafka中的消费语义atmostonce：可能会丢数据atleastonce：all+分区副本>=2+min>=2不丢失数据，但是数据可能重复exactlyonce：精准一次，不丢不重kafka的事务与幂等性官方速递ApacheKafkaIdempotentProducer-A
- 2024-05-19written script
Iamayoungadultwhowasfortunateenoughtohavebeenraisedbyalovingcommunityofneighbors,havingbeenorphanedatatenderage.Drivenbyadeepsenseofgratitudeandawarmheart,Ihavestrivedtobeamanofvirtueandhardwork.Mydiligenc
- 2024-05-11The written script
1.ThestoryIchoose:thesnailgirl2.Thepointofviewofthestory:thethirdpersonpointofview3.thenewpointofviewIwilluse:theFirstpersonpointofview.script：Iamanorphanwhogrewuptobeayoungmanwiththehelpofmyneighbors.I‘m
- 2024-04-29Flow（网络流 written on 4.29）
前言Classtakenon4.2Writtenon4.29Flow解决问题类网络流是用有向图每条边来模拟流动，有流量限制的情况下，求解最大流量（有时以及最小费用）的问题。同时也是将各类问题（尤其匹配问题）通过建模为网络流来用网络流算法求解的一个方法。解决问题的一般特点：数据范围不大不小，\(
- 2024-04-27A written script
In221BCE,I-QinshihuangbecametheFirstEmperorofChina.AstorytellertoldmeaninterestingtaleaboutNuwa,theGreatMother Goddess.Thenanideaappearedinmymind.Iwas determined tofindtheloststone.Soitwouldhelpmebuildastrongempi
- 2023-09-10could only be written to 0 of the 1 minReplication nodes. There are 1 datanode(s) running and 1 node
flume往HDFS写入数据报错如下所示：couldonlybewrittento0ofthe1minReplicationnodes.Thereare1datanode(s)runningand1node错误原因是：没有可用的datanode了，hdfs空间满了错误解决方法是：HDFS磁盘扩容清理HDFS上冗余文件
- 2023-09-04JGraph手册
1IntroductionJGraphisamature,feature-richopensourcegraphvisualizationlibrarywritteninJava.JGraphiswrittentobeafullySwingcompatiblecomponent,bothvisuallyandinitsdesignarchitecture.JGraphcanberunonanysystemsupportingJ
- 2023-03-10Vert.x response has already been written
Vert.xresponsehasalreadybeenwrittenhttps://stackoverflow.com/questions/59935129/vert-x-response-has-already-been-written Iamfacingaproblemwith
- 2023-02-14Cucumber and Gherkin
CucumberandGherkinWhatisCucumber?Cucumberisanopen-source,softwaretoolthatsupportstheBehaviourDrivenDevelopment(BDD)frameworkforwritingaut
- 2022-11-17D. Knowledge Cards
D.KnowledgeCardsPakChanek,arenownedscholar,inventedacardpuzzleusinghisknowledge.Inthepuzzle,youaregivenaboardwith$n$rowsand$m$colum
- 2022-09-27Full House
ProblemStatementWehavefivecardswithintegers$A$,$B$,$C$,$D$,and$E$writtenonthem,oneoneachcard.ThissetoffivecardsiscalledaFullhouse
- 2022-08-30（gcc常见的错误) 在windows系统环境下，使用gcc编译代码，printf 打印类似于%Lf,%Le等双精度格式化字符的值和支持c99标准环境下显示的值不同
在windows环境下，有时候我们使用c99标准命令进行gcc编译，但会发现，结果和我们预想的不同。这是一种语义错误。如以下的代码：#include<stdio.h>intmain(void){float
- 2022-08-24copy
→duplicate,replicateCopymayreferto:Copyingortheproductofcopying(includingtheplural"copies");theduplicationofinformationoranartifactCut