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  • 第一章:多线程入门

    学习目标 1. 什么是线程与多线程 1.1 线程的概念 1.2 多线程的概念 2. 为什么需要多线程编程 2.1 提高CPU利用率 2.2 提高程序响应性 2.3 更好的资源利用 2.4 简化复杂问题的处理 3. Java中实现多线程的两种基本方式 3.1 继承Thread类 3.2 实现Runnable接口 3.3 两种方式的比较 ...
  • 8.3 Style individual elements

    5160 2024-05-24 《R Markdown Cookbook》
    References Due to the simplicity of Markdown, you can apply some global styles to the Word document (see Section 8.1 ), but it is not straightforward to style individual elements...
  • Configuring PostgreSQL for Ranger

    RHEL/CentOS/Oracle/Aamazon Linux SLES If you are using Amazon RDS, see the Amazon RDS Requirements . On the PostgreSQL host, install the applicable PostgreSQL connector. RH...
  • Redis

    Description Key features Options host [string] port [int] key [string] data_type [string] user [string] auth [string] db_num [int] mode [string] nodes [list] format [str...
  • AWS S3

    5143 2024-07-01 《Apache Hudi 0.15.0》
    AWS configs AWS Credentials AWS Libs AWS S3 Versioned Bucket In this page, we explain how to get your Hudi spark job to store into AWS S3. AWS configs There are two configur...
  • Datasource SPI

    DolphinScheduler Datasource SPI 主要设计 如何使用数据源? 如何进行数据源插件开发? 未来计划 DolphinScheduler Datasource SPI 主要设计 如何使用数据源? 数据源中心默认支持POSTGRESQL、HIVE/IMPALA、SPARK、CLICKHOUSE、SQLSERVER数据源。...
  • 4.15 Create diagrams

    5137 2024-05-23 《R Markdown Cookbook》
    Basic diagrams Adding parameters to plots References There are many separate programs (e.g., Graphviz) that can be used to produce diagrams and flowcharts, but it can be easier...
  • Hive

    Description Key features Options table_name [string] metastore_uri [string] hdfs_site_path [string] read_partitions [list] krb5_path [string] kerberos_principal [string] ke...
  • Trino command line interface

    5135 2024-07-05 《Apache Kyuubi 1.9.1》
    Start Kyuubi Trino Server Install Running the CLI The Trino CLI provides a terminal-based, interactive shell for running queries. We can use it to connect Kyuubi server now. ...
  • IntelliJ IDEA Setup Guide

    5133 2024-07-05 《Apache Kyuubi 1.9.1》
    Copyright Profile Required Plugins Formatter For Java Formatter For Scala Checkstyle For Scala Copyright Profile Every file needs to include the Apache license as a header. ...