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  • Amazon EMR

    Amazon EMR 综述 任务参数 任务样例 创建EMR集群并运行Steps 向运行中的EMR集群添加Step 注意事项: Amazon EMR 综述 Amazon EMR 任务类型,用于在AWS上操作EMR集群并执行计算任务。 后台使用 aws-java-sdk 将JSON参数转换为任务对象,提交到AWS,目前支持两种程序类型: ...
  • Choose Services

    Steps Next Step More Information Based on the Stack chosen during the Select Stack step, you are presented with the choice of Services to install into the cluster. A Stack com...
  • Start the Ambari Server

    Next Steps More Information Run the following command on the Ambari Server host: ambari - server start To check the Ambari Server processes: ambari - server status ...
  • Security Overview

    2103 2024-06-22 《Apache Accumulo 2.x》
    Security Overview Implementation Security Overview Accumulo has the following security features: Only authenticated users can access Accumulo. Kerberos can be enabled to re...
  • 2. Auxiliary SQL Functions for Spark SQL

    Auxiliary SQL Functions for Spark SQL Auxiliary SQL Functions for Spark SQL Kyuubi provides several auxiliary SQL functions as supplement to Spark’s Built-in Functions ...
  • 健康检查

    健康检查 背景 Endpoint API-Server Master-Server Worker-Server Alert-Server 健康检查 背景 运行状况检查旨在提供一种独特的方法来检查 Dolphinscheduler 服务的运行状况。它包括模块的运行状况,例如 DB、缓存、网络等等。 Endpoint API-Serve...
  • Install Databases for HDF services

    Installing and Configuring MySQL Installing and Configuring Postgres Using an Oracle Database When installing Schema Registry, SAM, Druid, and Superset, you require a relationa...
  • 7.9 Use a custom HTML template (*)

    2096 2024-05-24 《R Markdown Cookbook》
    We mentioned LaTeX templates in Section 6.10 . You can also specify a custom HTML template for Pandoc to convert Markdown to HTML. Below is a brief example template: <html> ...
  • Object States

    2096 2024-05-25 《Apache JDO 3.2.1》
    Detecting Object State Persisting an object Updating an object Deleting an object Possible state transitions JDO manages the lifecycle of an object, from creation (Transient ...
  • Relation

    2096 2024-06-05 《Ramda 0.29.0》
    countBy difference differenceWith unionWith union gt gte intersection lt lte max min propEq sortBy pathEq maxBy minBy equals identical eqBy clamp sortWith inn...