hadoop优化-阿里云

hadoop sdk 优化小结（裁剪、集成kerberos组件、定制等)

01 引言博主最近在实际的业务中，使用到了DolphinScheduler（一款大数据调度框架）里面的一个工作流的MapReduce任务节点。主要做的事情就是，在该节点提交一个mr作业到华为云MRS大数据平台里面的yarn，任务节点代码如下：从代码得知，它是使用CLI的形式提交作业的，...

hadoop sdk 优化小结（裁剪、集成kerberos组件、定制等)

01 引言博主最近在实际的业务中，使用到了DolphinScheduler（一款大数据调度框架）里面的一个工作流的MapReduce任务节点。主要做的事情就是，在该节点提交一个mr作业到华为云MRS大数据平台里面的yarn，任务节点代码如下：从代码得知，它是使用CLI的形式提交作业的，因此需要...

大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第一阶段

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大数据实战项目：反爬虫系统（Lua+Spark+Redis+Hadoop框架搭建）第二阶段

28 课时 |

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Hadoop企业优化及扩展案例

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【Hadoop技术篇】hive的优化，经典面试

目录Map Join作用触发条件Bucket-Map Join作用触发条件SMB Join (sort merge bucket)作用触发条件Join-Skew关联查询时数据倾斜运行时优化编译时优化Unoin优化GroupBy-Skew统计时数据倾斜Map先行打散MR Job随机数打散M...

Hadoop Reduce阶段的shuffle是如何进行优化的？

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更新时间 2023-11-22 21:51:54

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