data最佳实践

DataWorks数据服务对接DataV最佳实践

通常对于未分页查询的API，直接返回data数组即可，对于分页查询的API直接返回data.rows数组。如果您要在DataV的折线图或柱状图中添加多个系列，通常DataV要求每个系列的数据是一个对象，并通过字段来区分系列，此时需要注意使用过滤器进行...

DataWorks on EMR集群配置最佳实践

DataWorks支持绑定EMR（E-MapReduce）的DataLake（新版数据湖）集群为EMR计算引擎，创建Hive、MR、Presto和Spark SQL等节点，实现EMR任务工作流的配置、定时调度和元数据管理等功能，帮助EMR用户更好地产出数据。本文为您介绍在DataWorks上...

DataStream的Timer使用最佳实践

本文为您介绍如何在DataStream上使用Timer，及Timer使用建议和注意事项。什么是Timer?Timer是Flink提供的定时器机制。通常，Flink作业是事件驱动计算的，但在一些场景下，Flink作业需要基于处理时间（ProcessingTime）或者事件时间（Event...

Databricks Delta Lake数据入湖最佳实践

sql-创建数据库 create database log_data_warehouse；使用创建的库 use log_data_warehouse；3.根据生成的日志结果创建分区表。说明 Apache日志发生器，生成的日志结构。日志结构 40.198.97.68-[19/Mar/2021:18:26:12+0800]"GET/category/...

DataWorks调度最佳实践

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ECS镜像（三）UserData最佳实践及Troubleshooting

一、最佳实践 Script 最典型的使用场景，通常用于在ECS启动时通过UserData来初始化环境。举个例子，我们通过UserData在ECS启动时配置 DNS、yum、NTP等。bin/sh#Modify DNS echo"nameserver 8.8.8.8"|tee/etc/resolv.conf#Modify yum repo ...

DataWorks调度配置最佳实践

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DataWorks调度配置最佳实践

PPT下载地址：https://yq.aliyun.com/download/2942 *活动议程*![alt](https://gw.alicdn.com/tfs/TB1MJYgFTtYBeNjy1XdXXXXyVXa-800-1997.png)

Spring Data 数据库建模最佳实践

本文节选自电子书《Netkiller Architect 手札》出处：http://www.netkiller.cn 作者：netkiller,QQ:13721218,订阅号：netkiller-ebook 第 12 章 Spring Data 数据库建模最佳实践 目录 12.1.分类表 12.2.为字段增加索引 12.3.复合索引 12.4....

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