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Product Interoperability
Ambari 2.7.4 supports only HDP-3.1.4 and HDF-3.2.0 The Support Matrix tool provides information about: Operating Systems Databases Browsers JDK Use the following URL to det... -
Monitoring
Overview Metrics Collecting and Reporting Metrics Reporting Metrics collection JVM Metrics Pre-defined Job Execution Metrics Job Execution History Store Email Notifications ... -
Unity Catalog
Syncing to Unity Catalog This document walks through the steps to register an Apache XTable™ (Incubating) synced Delta table in Unity Catalog on Databricks and open-source Unity C... -
DDL
Spark DDL To use Iceberg in Spark, first configure Spark catalogs . Iceberg uses Apache Spark’s DataSourceV2 API for data source and catalog implementations. CREATE TABLE Spark... -
MySQL/MariaDB Prerequisite
You must change the variable log_bin_trust_function_creators to 1 during Ranger installation. From RDS Dashboard>Parameter group (on the left side of the page): Set the MySQL... -
orm DTD/XSD
JDO defines XML MetaData in jdo files as well as orm files. As always with XML, the metadata must match the defined DTD/XSD for that file type. This section describes the conten... -
标题
Markdown 标题 使用 # 号标记 使用 = 和 - 标记一级和二级标题 （备用语法） 3.2. 最佳实践 Markdown 标题 Markdown 标题有两种格式。 分别是使用 # 数量表示多级标题方法和 =/- 表示一级和二级标题方法， 使用 # 号标记 使用 # 号可表示 1-6 级标题，一级标题对应一个 # 号，二级标题... -
JVM 监控
进程级监控 埋点方式 本讲介绍JVM监控相关知识。 进程级监控 Java类的程序，如果只是监控端口存活性，可以直接使用 Categraf 的 net_response 插件，如果只是监控进程存活性，以及进程的CPU、内存等使用率，这个和C的程序、Go的程序没有本质区别，使用 Categraf 的 procstat 插件。 procstat 插... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
Installing MySQL
About This Task Before You Begin Steps About This Task You can install MySQL 5.5 or later. Before You Begin On the Ambari host, install the JDBC driver for MySQL, and then...
