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[帮助文档] 如何使用JDBC编程的方式访问TrinoOnACK服务并执行查询操作

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Hadoop 分布式计算框架 MapReduce

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EMR on ACK默认部署在X86架构的节点上，您也可以通过配置，将Spark作业运行在Arm类型的弹性容器实例（ECI）上。本文为您介绍如何使用Arm节点运行Spark作业。

MapReduce作业在YARN的内存分配设置

0x00 教程内容内存分配设置校验结果0x01 内存分配设置1. 目前YARN配置情况a. 首先启动HDFS与YARNstart-dfs.shstart-yarn.shb. 打开master的8088端口可以看到我们之前的配置，请参考：YARN与MapReduce的配置与使用YARN总管理内存：3....

E-MapReduce作业日期设置是什么?

在创建作业过程中，支持在作业参数中设置时间变量通配符。变量通配符格式 E-MapReduce 所支持的变量通配符的格式为${dateexpr-1d} 或者${dateexpr-1h} 的格式。例如，假设当前时间为“20160427 12:08:01”：如果在作业参数中写成 ${yyyyMMdd ...

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开源大数据平台 E-MapReduce

开源大数据平台 E-MapReduce（简称“EMR”）是云原生开源大数据平台，向客户提供简单易集成的Hadoop、Hive、Spark、Flink、Presto、ClickHouse、StarRocks、Delta、Hudi等开源大数据计算和存储引擎服务。

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StarRocks 免费试用

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常见问题

最佳实践

EMR实时计算实践