spark-sql性能优化

Spark SQL性能优化

性能优化参数针对Spark SQL 性能调优参数如下：代码示例 import java.util.List;import org.apache.spark.SparkConf;import org.apache.spark.api.java.JavaSparkContext;import org.apache.spark.sql.api.java.JavaSQLContext;import org...

Spark SQL 性能优化再进一步：CBO 基于代价的优化

left-deep tree，因此所有后续 Join 都依赖于前面的 Join 结果，各 Join 间无法并行进行前面的两次 Join 输入输出数据量均非常大，属于大 Join，执行时间较长开启 CBO 后，Spark SQL 将执行计划优化如下优化后的 Join 有如下优势，因此...

EMR Spark-SQL性能极致优化揭秘概览篇

推荐阅读EMR Spark-SQL性能极致优化揭秘 RuntimeFilter Plus 阿里巴巴开源大数据技术团队成立Apache Spark中国技术社区，定期推送精彩案例，技术专家直播，问答区近万人Spark技术同学在线提问答疑，只为营造纯粹的Spark氛围，欢迎钉钉扫码...

EMR Spark-SQL性能极致优化揭秘概览篇

我们通过 C++来实现这些算子的 Native 执行结语这个文章只是大概的介绍了这次性能优化的一些优化点，在接下来的系列文章里，我们会针对每一个优化点细致的展开、分析，希望对 Spark-SQL 有兴趣的同学们可以多多关注，多多捧场。...

EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework

EMR团队探索并开发了SparkSQL Native Codegen...参考文章：EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework https://developer.aliyun.com/article/765156?spm=a2c6h.12873581.0.dArticle765156.5f6f47b4Mj7VpM&groupCode=aliyunemr

EMR Spark-SQL性能极致优化揭秘 RuntimeFilter Plus

在 2019 年的打榜测试中，我们基于 Spark SQL Catalyst Optimizer 开发的 RuntimeFilter 优化对于 10TB 数据 99 query 的整体性能达到 35%左右的提升。简单来说，RuntimeFilter 包括两点核心优化：动态分区裁剪：事实表以日期列（date_sk...

EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework

作者：周克勇，花名一锤，阿里巴巴计算平台事业部EMR团队技术...相关阅读推荐：EMR Spark-SQL性能极致优化揭秘 RuntimeFilter PlusEMR Spark-SQL性能极致优化揭秘概览篇阿里巴巴开源大数据技术团队成立Apache Spark中国技术社区，定期推送...

EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework

数据结构层面，Weld IR最核心的数据结构是vec和struct，对应C语言里的数组和struct，能较好的表达Spark SQL的 Row Batch基于struct和vec，可以构造字典数据结构，能够比较好的表达SQL里面重度使用Hash结构，操作层面，Weld IR提供了类函数...

7月30日产品直播【EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework】

主题：EMR Spark-SQL性能极致优化揭秘 Native Codegen Framework 时间：7月30日周四 19:00 参与直播方式：扫描下方钉钉二维码进群，届时是直接观看或届时进入直播间https://developer.aliyun.com/live/43579 议题简介：EMR团队探索并开发...

sparksql-cache小表实现mapjoin优化性能

对于复杂sql且关联表较多的情况，数据倾斜是很常见的问题，几乎可以说不倾斜才是少见情况，而在不能改变原始数据（不能采用多阶段分段聚合），不能改变spark源码的情况下，除了调整各种参数，可操作的空间并不多。对于表之间的join操作，...

性能优化spark-sql相关内容

.优化性能问题 .linux优化性能 .优化前端性能 .性能优化应用 .android优化性能 .使用优化性能 .mysql优化性能 .性能优化dex .优化性能内存 .sql性能优化 .web性能优化 .查询性能优化 .优化数据库性能 .性能系统优化 .代码优化性能

您可能感兴趣

.java性能 .linux性能 .性能区别 .字符串性能 .udf性能 .xml性能 ..net性能 .python性能

{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1PiAi2qL7gK0jSZFBXXXZZpXa-200-200.png","contentLink":"https://www.aliyun.com/product/pts","title":"性能测试 PTS ","des":"性能测试 PTS是面向所有技术背景人员的云化测试工具。PTS以互联网化的交互，提供性能测试、API调试和监测等多种能力。自研和适配开源的功能轻松模拟任意体量的用户访问业务的场景，任务随时发起，免去繁琐的搭建和维护成本。","link1":"https://pts.console.aliyun.com/?spm=5176.7946858.1368709..74122542IZ4XFh#/overviewpage","btn1":"产品控制台","link2":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","btn2":"立即购买","btn3":"产品文档","link3":"https://help.aliyun.com/product/29260.html","infoGroup":[{"infoName":"用户指南","infoContent":{"firstContentName":"产品快速入门","lastContentName":"常见问题","firstContentLink":"https://help.aliyun.com/document_detail/55787.html?spm=a2c4g.11174283.6.553.46b61b3aNa5uRi","lastContentLink":"https://help.aliyun.com/knowledge_list/110705.html?spm=a2c4g.11174283.6.672.46b61b3aNa5uRi"}},{"infoName":"精选推荐","infoContent":{"firstContentName":"内网压测资源包","firstContentLink":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","lastContentLink":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","lastContentName":"JMeter压测资源包"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/119129.html?spm=5176.7946858.1219570.11.74122542IZ4XFh","firstContentName":"小程序压测示例","lastContentName":"PTS日常业务监测","lastContentLink":"https://help.aliyun.com/document_detail/121869.html?spm=5176.7946858.1219570.12.74122542IZ4XFh"}},{"infoName":"最佳实践","infoContent":{"firstContentName":"VPC 内网压测","firstContentLink":"https://developer.aliyun.com/article/877509?spm=5176.7946858.J_5253785160.2.f6fc2d61UGlKey&groupCode=alisoftwaretech","lastContentLink":"https://developer.aliyun.com/article/708207?spm=a2c6h.14164896.0.0.6e1549f1rIJEdp","lastContentName":"开源 JMeter 压测"}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"mPaaS","subtitle":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","linkUrl":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1PiAi2qL7gK0jSZFBXXXZZpXa-200-200.png","contentLink":"https://www.aliyun.com/product/pts","title":"性能测试 PTS ","des":"性能测试 PTS是面向所有技术背景人员的云化测试工具。PTS以互联网化的交互，提供性能测试、API调试和监测等多种能力。自研和适配开源的功能轻松模拟任意体量的用户访问业务的场景，任务随时发起，免去繁琐的搭建和维护成本。","link1":"https://pts.console.aliyun.com/?spm=5176.7946858.1368709..74122542IZ4XFh#/overviewpage","btn1":"产品控制台","link2":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","btn2":"立即购买","btn3":"产品文档","link3":"https://help.aliyun.com/product/29260.html","infoGroup":[{"infoName":"用户指南","infoContent":{"firstContentName":"产品快速入门","lastContentName":"常见问题","firstContentLink":"https://help.aliyun.com/document_detail/55787.html?spm=a2c4g.11174283.6.553.46b61b3aNa5uRi","lastContentLink":"https://help.aliyun.com/knowledge_list/110705.html?spm=a2c4g.11174283.6.672.46b61b3aNa5uRi"}},{"infoName":"精选推荐","infoContent":{"firstContentName":"内网压测资源包","firstContentLink":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","lastContentLink":"https://common-buy.aliyun.com/?commodityCode=pts_bag_dp_cn","lastContentName":"JMeter压测资源包"}},{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://help.aliyun.com/document_detail/119129.html?spm=5176.7946858.1219570.11.74122542IZ4XFh","firstContentName":"小程序压测示例","lastContentName":"PTS日常业务监测","lastContentLink":"https://help.aliyun.com/document_detail/121869.html?spm=5176.7946858.1219570.12.74122542IZ4XFh"}},{"infoName":"最佳实践","infoContent":{"firstContentName":"VPC 内网压测","firstContentLink":"https://developer.aliyun.com/article/877509?spm=5176.7946858.J_5253785160.2.f6fc2d61UGlKey&groupCode=alisoftwaretech","lastContentLink":"https://developer.aliyun.com/article/708207?spm=a2c6h.14164896.0.0.6e1549f1rIJEdp","lastContentName":"开源 JMeter 压测"}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"mPaaS","subtitle":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","linkUrl":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}}

性能测试 PTS

性能测试 PTS是面向所有技术背景人员的云化测试工具。PTS以互联网化的交互，提供性能测试、API调试和监测等多种能力。自研和适配开源的功能轻松模拟任意体量的用户访问业务的场景，任务随时发起，免去繁琐的搭建和维护成本。

用户指南

精选推荐

最佳实践