http://download.igniterealtime.org/openfire/docs/latest/documentation/db-integration-guide.html Introduction This document provides instructions for integrating Openfire authentication, users, and groups with your custom database tables. This is usef…
Introduction This document provides instructions for integrating Openfire authentication, users, and groups with your custom database tables. This is useful when your users already have accounts in an external system and you do not wish to duplicate…
用于Kafka 0.10的结构化流集成从Kafka读取数据并将数据写入到Kafka. 1. Linking 对于使用SBT/Maven项目定义的Scala/Java应用程序,用以下工件artifact连接你的应用程序: 对于Python应用程序,你需要在部署应用程序时添加上面的库及其依赖关系.查看Deploying子节点. 2. Reading Data from Kafka 从Kafka读取数据 2.1 Creating a Kafka Source for Streaming Queries…
This document, along with the samples and Javadoc™ in the IBM Sametime Software Development Kit (SDK), provides you with the information you need to build Eclipse plug-ins that extend the capabilities of IBM Sametime Connect and integrate your own ap…
目录 Overview Quick Example Programming Model Basic Concepts Handling Event-time and Late Data Fault Tolerance Semantics API using Datasets and DataFrames Creating streaming DataFrames and streaming Datasets Input Sources Schema inference and partition…
This guide contains everything you need to know to distribute an app through the App Store or Mac App Store. 这个guide包含了如何通过app stor或者mac app store来发布一个app. Get step-by-step guidance for enrolling in an Apple Developer Program and building, testing, a…
Structured Streaming编程 Programming Guide Overview Quick Example Programming Model Basic Concepts Handling Event-time and Late Data Fault Tolerance Semantics API using Datasets and DataFrames Creating streaming DataFrames and streaming Datasets Input…
Overview A Quick Example Basic Concepts Linking Initializing StreamingContext Discretized Streams (DStreams) Input DStreams and Receivers Transformations on DStreams Output Operations on DStreams DataFrame and SQL Operations MLlib Operations Caching…
An ingest pattern that we commonly see being adopted at Cloudera customers is Apache Spark Streaming applications which read data from Kafka. Streaming data continuously from Kafka has many benefits such as having the capability to gather insights fa…
http://groovy-lang.org/structure.html 3.2. Script class A script is always compiled into a class. The Groovy compiler will compile the class for you, with the body of the script copied into a run method. The previous example is therefore compiled as…
### Spark SQL Running the SET -v command will show the entire list of the SQL configuration. #scala// spark is an existing SparkSession spark.sql("SET -v").show(numRows = 200, truncate = false)#java // spark is an existing SparkSession spark.sql…
使用spark.streaming.receiver.maxRate这个属性限制每秒的最大吞吐.官方文档如下: Maximum rate (number of records per second) at which each receiver will receive data. Effectively, each stream will consume at most this number of records per second. Setting this configuration…