高并发postgresql_第3页-阿里云

备案控制台

PostgreSQL数据库 OLTP高并发请求性能优化

在多核系统中，一般TPS会随并发数的增加而提升，但是当并发数超过一定的数值（如CPU核数的2到3倍以后），性能开始下降，并发数越高，下降越严重。例子：更新500万记录表中的1条随机记录。开8000个并发。 create table test_8000 (id int primary key, c...

PostgreSQL高并发单行更新发生死锁

之前的一篇博客《PostgreSQL分区表的性能损耗验证》中，遇到100并发单行更新发生死锁(问题1)的问题。这么简单的一条SQL，100个并发时居然会发生死锁，太不可思议了。发生死锁的SQLupdate_smallrange.sql: \setrandom id 1 10000 update&n...

共有22条

< 1 2 3 >

跳转至： GO

更新时间 2024-03-01 19:33:30

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

产品推荐

{"optioninfo":{"dynamic":"true","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://www.aliyun.com/product/live","icon":"live","title":"视频直播","des":"视频直播（ApsaraVideo Live）是基于领先的内容接入与分发网络和大规模分布式实时视频处理技术（含窄带高清TM）打造的音视频直播平台，提供易接入、低延迟、高并发、高清流畅的音视频直播服务。","btn1":"特惠购买","link1":"https://common-buy.aliyun.com/?spm=5176.7991389.1295213..687e1547X2Uga4&commodityCode=liveflowbag#/buy","btn2":"了解价格","link2":"https://cn.aliyun.com/price/product?spm=5176.7991389.1295213.8.687e1547X2Uga4#/live/detail","btn3":"管理控制台","link3":"https://live.console.aliyun.com/?spm=5176.12818093.0.dlive.488716d0p6xGzf#/overview","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"业务场景资源包推荐","firstContentLink":"https://www.aliyun.com/activity/activity/storage/edgecloud","lastContentName":"","lastContentLink":""}},{"infoName":"专家解读","infoContent":{"firstContentName":"场景选择及SDK下载","firstContentLink":"https://help.aliyun.com/document_detail/447529.html","lastContentLink":"","lastContentName":""}},{"infoName":"免费体验","infoContent":{"firstContentName":"免费获取播放器SDK","firstContentLink":"https://help.aliyun.com/document_detail/438207.html","lastContentName":"免费DEMO体验","lastContentLink":"https://help.aliyun.com/document_detail/84756.html?spm=a2c4g.11186623.2.15.28311bc7s8pY9r"}}]}],"card":[{"link":"#","icon":"https://img.alicdn.com/tfs/TB1afahQpXXXXaAapXXXXXXXXXX-114-114.png","title":"云服务器ECS","des":"云服务器（Elastic Compute Service，简称 ECS）是一种简单高效、处理能力可弹性伸缩的计算服务，帮助您快速构建更稳定、安全的应用，提升运维效率，降低 IT 成本，使您更专注于核心业务。","btn1":"FPGA云服务器","link1":"#","btn2":"GPU云服务器","link2":"#","tip":"新一代云服务器N5 （Xeon® (Skylake)处理器）上线！<a href=\"#\" target=\"_blank\">立即申请</a>"}],"search":[{"txt":"云数据库","link":"#"}],"infoCard":[{"bannerTitle":"<b>全民建站节</b>","bannerUrl":"https://img.alicdn.com/tfs/TB1gMb0IXT7gK0jSZFpXXaTkpXa-1740-328.jpg","bannerContent":"CEO教你线上营销；建站产品限时特惠；下单抽取苹果手机","liveButtonName":"立即观看","liveButtonLink":"https://yqh.aliyun.com/live/detail/10713","homePageName":"去主会场，边看边买","homePageLink":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804","contentTitle":"爆款内容","linkGroup":[{"linkContent":"<b>云·企业官网定制建站</b>：买一年送半年，量身定制1对1，建站专业又省心！","linkTo":"立即购买","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_9553352720"},{"linkContent":"<b>域名爆款产品推荐</b>：.com 23元/首年起；.cn 16元/首年起；.我爱你 18元/首年起","linkTo":"立即购买","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_8288954440"},{"linkContent":"<b>全民建站锦鲤等你拿</b>：符合“云·企业官网”产品首购即可参与抽奖","linkTo":"立即抽奖","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_6878476400"}]}],"title":{"mainTitle":"云原生助力企业全面拥抱云计算","subtitle":"这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍。","linkUrl":"#1","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB14iILhgDqK1RjSZSyXXaxEVXa-286-101.jpg","icon":"aliyun-icon-play","textColor":"light"},"dataList":[{"summary":"云原生助力企业全面拥抱云计算","author":"叔同（阿里巴巴研究员、阿里云原生应用平台负责人）"}],"sceneCard":[{"title":"云计算试飞员老蒋开课啦！第一期：电商网站搭建","des":"这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。","btn":"立即观看","link":"","image":""}],"txt":[{"title":"适用场景","scenariosone":[{"txtone":"小型电商：支持访问50万PV,一段场景方案的介绍。","txttwo":"产品推荐","product":[{"name":"ECS 2核4G 40G数据盘 5M带宽","link":"#"}]}]}]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"true","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"link":"https://www.aliyun.com/product/live","icon":"live","title":"视频直播","des":"视频直播（ApsaraVideo Live）是基于领先的内容接入与分发网络和大规模分布式实时视频处理技术（含窄带高清TM）打造的音视频直播平台，提供易接入、低延迟、高并发、高清流畅的音视频直播服务。","btn1":"特惠购买","link1":"https://common-buy.aliyun.com/?spm=5176.7991389.1295213..687e1547X2Uga4&commodityCode=liveflowbag#/buy","btn2":"了解价格","link2":"https://cn.aliyun.com/price/product?spm=5176.7991389.1295213.8.687e1547X2Uga4#/live/detail","btn3":"管理控制台","link3":"https://live.console.aliyun.com/?spm=5176.12818093.0.dlive.488716d0p6xGzf#/overview","infoGroup":[{"infoName":"最新活动","infoContent":{"firstContentName":"业务场景资源包推荐","firstContentLink":"https://www.aliyun.com/activity/activity/storage/edgecloud","lastContentName":"","lastContentLink":""}},{"infoName":"专家解读","infoContent":{"firstContentName":"场景选择及SDK下载","firstContentLink":"https://help.aliyun.com/document_detail/447529.html","lastContentLink":"","lastContentName":""}},{"infoName":"免费体验","infoContent":{"firstContentName":"免费获取播放器SDK","firstContentLink":"https://help.aliyun.com/document_detail/438207.html","lastContentName":"免费DEMO体验","lastContentLink":"https://help.aliyun.com/document_detail/84756.html?spm=a2c4g.11186623.2.15.28311bc7s8pY9r"}}]}],"card":[{"link":"#","icon":"https://img.alicdn.com/tfs/TB1afahQpXXXXaAapXXXXXXXXXX-114-114.png","title":"云服务器ECS","des":"云服务器（Elastic Compute Service，简称 ECS）是一种简单高效、处理能力可弹性伸缩的计算服务，帮助您快速构建更稳定、安全的应用，提升运维效率，降低 IT 成本，使您更专注于核心业务。","btn1":"FPGA云服务器","link1":"#","btn2":"GPU云服务器","link2":"#","tip":"新一代云服务器N5 （Xeon® (Skylake)处理器）上线！<a href=\"#\" target=\"_blank\">立即申请</a>"}],"search":[{"txt":"云数据库","link":"#"}],"infoCard":[{"bannerTitle":"<b>全民建站节</b>","bannerUrl":"https://img.alicdn.com/tfs/TB1gMb0IXT7gK0jSZFpXXaTkpXa-1740-328.jpg","bannerContent":"CEO教你线上营销；建站产品限时特惠；下单抽取苹果手机","liveButtonName":"立即观看","liveButtonLink":"https://yqh.aliyun.com/live/detail/10713","homePageName":"去主会场，边看边买","homePageLink":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804","contentTitle":"爆款内容","linkGroup":[{"linkContent":"<b>云·企业官网定制建站</b>：买一年送半年，量身定制1对1，建站专业又省心！","linkTo":"立即购买","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_9553352720"},{"linkContent":"<b>域名爆款产品推荐</b>：.com 23元/首年起；.cn 16元/首年起；.我爱你 18元/首年起","linkTo":"立即购买","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_8288954440"},{"linkContent":"<b>全民建站锦鲤等你拿</b>：符合“云·企业官网”产品首购即可参与抽奖","linkTo":"立即抽奖","link":"https://ac.aliyun.com/promotion/webdesign/20200525?utm_content=g_1000127804#J_6878476400"}]}],"title":{"mainTitle":"云原生助力企业全面拥抱云计算","subtitle":"这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍，这是一段副标题介绍。","linkUrl":"#1","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB14iILhgDqK1RjSZSyXXaxEVXa-286-101.jpg","icon":"aliyun-icon-play","textColor":"light"},"dataList":[{"summary":"云原生助力企业全面拥抱云计算","author":"叔同（阿里巴巴研究员、阿里云原生应用平台负责人）"}],"sceneCard":[{"title":"云计算试飞员老蒋开课啦！第一期：电商网站搭建","des":"这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。这是一段副标介绍，这是一段副标介绍。","btn":"立即观看","link":"","image":""}],"txt":[{"title":"适用场景","scenariosone":[{"txtone":"小型电商：支持访问50万PV,一段场景方案的介绍。","txttwo":"产品推荐","product":[{"name":"ECS 2核4G 40G数据盘 5M带宽","link":"#"}]}]}]}}

视频直播（ApsaraVideo Live）是基于领先的内容接入与分发网络和大规模分布式实时视频处理技术（含窄带高清TM）打造的音视频直播平台，提供易接入、低延迟、高并发、高清流畅的音视频直播服务。

特惠购买

了解价格

管理控制台

最新活动

业务场景资源包推荐

专家解读

场景选择及SDK下载

免费体验

免费获取播放器SDK

免费DEMO体验

相关电子书

更多

分布式高并发缓存6.0

高并发分布式缓存Redis6.0

蘑菇街高并发多终端无线网关实践

分布式高并发缓存6.0

高并发分布式缓存Redis6.0

蘑菇街高并发多终端无线网关实践

立即下载立即下载立即下载

最佳实践

云上运维

云上高并发系统改造

在水平扩展阶段通过SLB挂nginx增加负载均衡扩展性，在数据库拆分阶段通过DRDS进行分库分表。

云服务器ECS 云数据库RDS MySQL 版数据传输云解析 PrivateZone 云原生分布式数据库PolarDB-X 云速搭CADT

一键部署

相关实验场景

更多

相关视频

云上高并发Web架构最佳实践 Dev-Talk 8314播放

Java Spring Boot开发实战系列课程第10讲：Spring Boot 2.0实战高并发Redis缓存徐雷frank 10134播放

高并发postgresql相关内容

postgresql高并发

高并发您可能感兴趣