- 2024-11-11Azure Availability Sets and Availability Zones
InMicrosoftAzure,AvailabilitySetsandAvailabilityZonesarebothkeyfeaturesthatprovidehighavailabilityandfaulttoleranceforyourapplicationsandworkloads,buttheyareusedindifferentwaysandhavedifferentpurposes.Here'sabreak
- 2024-10-04Migrate SQL Server to AWS & Azure & Huawei Cloud
MigrateSQLServertoAWSMicrosoftSQLServerAlwaysOnavailabilitygroupsprovideahighavailability(HA)anddisasterrecovery(DR)solutionforSQLServer.Anavailabilitygroupconsistsofaprimaryreplicathatacceptsread/writetraffic,andup
- 2024-07-17VMware Cloud Director Availability 4.7.2 | 灾难恢复和迁移 | DRaaS
VMwareCloudDirectorAvailability4.7.2|灾难恢复和迁移|DRaaSOnboarding&DisasterRecoveryServices请访问原文链接:https://sysin.org/blog/vmware-cloud-director-availability-4/,查看最新版。原创作品,转载请保留出处。作者主页:sysin.orgVMwareCloudDirectorA
- 2024-04-14Vault high availability with Consul
VaulthighavailabilitywithConsulhttps://developer.hashicorp.com/vaultWhatisVault?Secure,store,andtightlycontrolaccesstotokens,passwords,certificates,encryptionkeysforprotectingsecrets,andothersensitivedatausingaUI,CLI,orH
- 2024-04-08Udemy AWS SAA - Scalability & Availability
Scalability:anapplication/systemcanhandlegreaterloadsbyadapting.TherearetwokindsofscalabilityVerticalScalability(=scaleup/down)increasingthesizeoftheinstance,likebetterlaptop,orfromt2.microtot2.largeHorizontalScal
- 2024-02-23VMware Cloud Director Availability 4.7 | 灾难恢复和迁移 | DRaaS
VMwareCloudDirectorAvailability4.7|灾难恢复和迁移|DRaaSOnboarding&DisasterRecoveryServices请访问原文链接:https://sysin.org/blog/vmware-cloud-director-availability-4/,查看最新版。原创作品,转载请保留出处。作者主页:sysin.orgVMwareCloudDirectorAva
- 2024-01-22SQL Server 2012 AlwaysON 同步延迟时间
SELECTavailability_mode_desc,role_desc,replica_server_name,last_redone_time,GETDATE()now,DATEDIFF(ms,last_redone_time,GETDATE())diffMSFROM((sys.availability_groupsASagJOINsys.
- 2024-01-13Ajax注册表单用户名实时验证
Ajax注册表单用户名实时验证 1.1.1摘要很多时候在网站上注册时,我们会发现,注册表单通常需要检查用户名和电子邮件地址的可用性;从而确保用户之间不拥有相同的用户名和电子邮件地址;一些网站喜欢在用户提交填写的用户信息时,做信息可用性的检查,而一些网站会做实时的用户名和电子
- 2023-07-24【高可用系统架构设计】SLA服务可用性4个9是什么意思?如何保证服务的高可用性 HA(High Availability)?...
如何保证服务的高可用性HA(HighAvailability)?高可用HA(HighAvailability)是分布式系统架构设计中必须考虑的因素之一,它通常是指,通过设计减少系统不能提供服务的时间。方法论上,高可用是通过冗余+自动故障转移来实现的。我们都知道,单点是系统高可用的大敌,单点往往是系统高可用最大的
- 2023-07-24HDFS High Availability
HDFSHighAvailabilityHDFSHighAvailabilityPurposeNote:UsingtheQuorumJournalManagerorConventionalSharedStorageBackgroundArchitectureHardwareresourcesDeploymentConfigurationoverviewConfigurationdetailsDeploymentdetailsAdministrativecommandsA
- 2023-06-21对比Availability可用性、Reliability可靠性、Stability稳定性
简单区分从事故、稳定方面简单理解如下:名词简单理解可靠性不出事故可用性不出事故出事故后,快速止损稳定性解决故障问题基础上服务持续稳定、性能稳定总体对比可用性可靠性稳定性英文AvailabilityReliabilityStability关注点关注的是服务总体的持续时间。系统在给定时间内总体的运
- 2023-05-31flink1.14.5集群(flink on yarn)部署1
先安装hadoop,yarn,zookeeper 配置环境变量vim/etc/profile(注意新增了HADOOP_CLASSPATH变量)exportHADOOP_CLASSPATH=`/home/opt/hadoop-2.9.2/bin/hadoopclasspath`exportFLINK_HOME=/home/opt/flink-1.14.5exportPATH=$PATH:$FLINK_HOME/binsource/etc/profile
- 2023-05-0521、MHA master high availability (主节点高可用)
MHAmasterhighavailability(主节点高可用)MHA:MasterHighAvailability,对主节点进行监控,可实现自动故障转移至其它从节点;通过提升某一从节点为新的主节点,基于主从复制实现,还需要客户端配合实现,目前MHA主要支持一主多从的架构,要搭建MHA,要求一个复制集群中必须最少有三台
- 2023-04-18sqlserver 分布式可用性组(二)—— 创建、故障转移与元数据信息查看方法
一、创建规划准备工作与普通创建两个AG没有区别,以下是DAG规划:ProductionDRWSFCOS:WindowsServer2016OS:WindowsServer2016Nodes:WSFC-DC1-NODE1andWSFC-DC1-NODE2Nodes:WSFC-DC2-NODE1andWSFC-DC2-NODE2ClusterNameObject:WSFC-DC1ClusterNameObject:WSFC-DC2
- 2023-03-28High availability · AzureAD/microsoft-authentication-library-for-dotnet Wiki · GitHub
Highavailability·AzureAD/microsoft-authentication-library-for-dotnetWiki·GitHubPro-activetokenrenewalToimproveavailabilityMSALtriestoensuret
- 2023-03-13Explain the region, zone and geography concept on Microsoft Azure
Explaintheregion,zoneandgeographyconceptonMicrosoftAzureInMicrosoftAzure,aregionisageographicalareathatcontainsatleastoneAzuredata
- 2023-01-31Step-By-Step: Creating a SQL Server Always On Availability Group
Skiptomaincontent SearchSignIn Home ITOpsTalk ITOpsTalkBlog Step-By-Step:CreatingaSQLSe
- 2023-01-31What is an Always On availability group?
Skiptomaincontent LearnDocumentationTrainingCertificationsQ&ACodeSamplesAssessmentsShowsEventsSigninSQLDocsOverviewInstallS
- 2022-12-28Kafka设计解析(三)- Kafka High Availability
摘要本文在上篇文章基础上,更加深入讲解了Kafka的HA机制,主要阐述了HA相关各种场景,如Brokerfailover,Controllerfailover,Topic创建/删除,Broker启动,Follower从Leaderfe
- 2022-12-17高可用系列文章之一 - 概述
一概述可用性是系统运行质量的重要指标.随着数字化和智能化的进程,系统的可用性愈发重要。例如,制造业流水线需要高可用性的MES系统来保证流水线的正常运转。本文为高可
- 2022-12-17高可用系列文章之一 - 概述
一概述可用性是系统运行质量的重要指标.随着数字化和智能化的进程,系统的可用性愈发重要。例如,制造业流水线需要高可用性的MES系统来保证流水线的正常运转。本文为
- 2022-12-09SLA服务可用性4个9是什么意思?如何保证服务的高可用性 HA(High Availability)?...
如何保证服务的高可用性HA(HighAvailability)?高可用HA(HighAvailability)是分布式系统架构设计中必须考虑的因素之一,它通常是指,通过设计减少系统不能提供服务的时间。方法论
- 2022-11-24AG配置
--指定在此可用性副本当前拥有辅助角色(即它是辅助副本)时要生效的角色有设置:ALTERAVAILABILITYGROUPCEPUDBHAOMODIFYREPLICAONN'DB1'WITH(SECONDARY_ROLE(ALLOW_CONN
- 2022-10-26Disaster Recovery and High Availability 101
标题:DisasterRecoveryandHighAvailability101原文:https://blog.rabbitmq.com/posts/2020/07/disaster-recovery-and-high-availability-101/时间:2020-07-07在这篇
- 2022-08-19安装Flink 环境
安装Flink环境环境:centos7.7jdk:1.8.0Flink版本:1.14.5安装目录:/root/hadoop/flink-1.14.5首先解压Flinktar包tar-zxvfflink-1.14.5-bin-scala_2.11.tgzcdfli