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为 HDF 服务安装数据库
安装和配置MySQL 安装和配置 Postgres 使用 Oracle 数据库 安装 Schema Registry、SAM、Druid 和 Superset 时，您需要一个关系数据存储来存储元数据。您可以使用 MySQL、Postgres、Oracle 或 MariaDB。这些主题描述如何安装 MySQL、Postgres 和 Oracle 以及如... -
Easysearch
Support Those Engines Description Using Dependency Key features Data Type Mapping hosts [array] username [string] password [string] index [string] source [array] query [js... -
LDAP Tutorial
LDAP Introduction Why use LDAP? Configuring LDAP 1.Official website to download the binary installation package 2.Add LDAP configuration LDAP Introduction LDAP (Light Direct... -
Configure Kyuubi to use Kerberos Authentication
Kerberos Overview Enable Kerberos Authentication Create a Kerberos principal and keytab Enable Hadoop Impersonation # Configure the authentication properties Refresh all th... -
Task SPI
DolphinScheduler Task SPI 扩展 如何进行任务插件开发？ DolphinScheduler Task SPI 扩展 如何进行任务插件开发？ org.apache.dolphinscheduler.spi.task.TaskChannel 插件实现以上接口即可。主要包含创建任务（任务初始化，任务运行等方法）、任务取消，如果是... -
Why JDO?
The majority of applications need to persist (or store) data during their lifecycle. There are many ways of doing this with an application written in Java. If your datastore is ... -
Auxiliary Optimization Rules
Features Usage Additional Configurations Kyuubi provides SQL extension out of box. Due to the version compatibility with Apache Spark, currently we support Apache Spark branch-... -
Version Upgrade Guide
Pre-Upgrade Preparation Locating Upgrade Scripts Executing Upgrade Scripts # Example: Upgrading from 2.0.0 to 2.1.2 Verifying the Upgrade Troubleshooting Next Steps Pre-U... -
Elasticsearch
Description Key features Options hosts [array] username [string] password [string] index [string] source [array] array_column [array] query [json] scroll_time [String] sc... -
Disaster Recovery
Savepoint Restore Runbook Related Resources Disaster Recovery is very much mission-critical for any software. Especially when it comes to data systems, the impact could be ver...
