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JDO v JPA
There are several competing persistence technologies available for Java. Two of these are “standardised” (via the JCP). When developing your application you need to choose the mos... -
1. Kubernetes Tools Spark Block Cleaner
Kubernetes Tools Spark Block Cleaner Requirements Scenes Principle Usage Build Block Cleaner Docker Image Modify spark-block-cleaner.yml Start daemonSet Related parameters ... -
SSO Integration
Background SSO login workflow How to enable SSO login Note Background As an enterpise practice, it’s common to apply Single sign-on (SSO) across all applications, so that use... -
设置选项
更多信息 以下选项经常用于 Ambari Server 设置。 -j (or —java-home) 指定要在 Ambari Server 和集群中的所有主机上使用的 JAVA_HOME 路径。默认情况下，如果您不指定此选项，Ambari Server 安装程序会将 Oracle JDK 1.8 二进制文件和随附的 Java 加密扩展 (JCE) ... -
Setup SSH Tunneling
Turn on feature flag Change SSH_TUNNELING to True If you want to add more security when establishing the tunnel we allow users to overwrite the SSHTunnelManager class here ... -
Schema Evolution
Schema Evolution on Write Type Promotions Schema Evolution on read Adding Columns Altering Columns Deleting Columns Renaming columns Schema Evolution in Action Related Reso... -
The TTL Of Kyuubi Engines
The Big Contributors Of Resource Waste TTL Types In Kyuubi Engines Configurations Engine TTL Executor TTL For a multi-tenant cluster, its overall resource utilization is a KP... -
Elasticsearch
Description Key features Options hosts [array] index [string] index_type [string] primary_keys [list] key_delimiter [string] username [string] password [string] max_retry_... -
文件参数传递
文件参数 使用方式 配置文件参数 输出文件给下游任务 获取上游任务的文件 其他 备注 样例 文件参数 通过配置文件参数，在同一工作流实例中，可以将上游任务工作目录下的文件(或文件夹，下统一以文件 代替)传递给下游任务。 如以下场景可能使用到 在ETL任务中，将多个上游任务处理好的数据文件一起传递给特定的下游任务。 在机器学习场景中，将... -
Debian 9
Steps Next Step More Information On a server host that has Internet access, use a command line editor to perform the following Steps Before installing Ambari, you must upda...
