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数据推送
OpenTSDB 协议 RemoteWrite 协议 推给客户端 在 采集器 章节可以看出，夜莺支持多种数据接收的接口（由 n9e-server 实现，推送数据就是推给 n9e-server 的 19000 端口），包括 OpenTSDB、Open-Falcon、RemoteWrite、Datadog 等协议。这节我们以 OpenTSDB 的数据接... -
Authorizations
Configuration Security Labels Writing labeled data Security Label Expression Syntax User Authorizations Advanced Authorizations Handling In Accumulo, data is written with se... -
自监控
夜莺 5.x 版本有 n9e-webapi 和 n9e-server 两个模块，这俩模块都暴露了 /metrics 接口，所以，夜莺自身组件的监控，就有两个做法，做法一： 搞一个单独的 Prometheus，抓取 n9e-webapi 和 n9e-server 的 /metrics 的数据 在这个单独的 Prometheus 里配置 up 指标的告... -
Set Up the Ambari Server
More Information Before starting the Ambari Server, you must set up the Ambari Server. Setup configures Ambari to talk to the Ambari database, installs the JDK and allows you to... -
How To Use Spark Adaptive Query Execution (AQE) in Kyuubi
The Basics of AQE Dynamically Switch Join Strategies Dynamically Coalesce Shuffle Partitions Other Tips for Best Practises How to set spark.sql.adaptive.advisoryPartitionSizeInByt... -
Table Design
Basic Table RowID Design Lexicoders Indexing Entity-Attribute and Graph Tables Document-Partitioned Indexing Basic Table Since Accumulo tables are sorted by row ID, each ta... -
Performance
Optimized DFS Access Performance Optimizations Write Path Bulk Insert Upserts Indexing Read Path Data Skipping Optimized DFS Access Hudi also performs several key storage... -
Conditions
Conditions 节点 创建任务 任务参数 相关任务 任务样例 1、创建工作流 2、查看执行结果 注意事项 Conditions 节点 Conditions 是一个条件节点，根据上游任务运行状态，判断应该运行哪个下游任务。截止目前 Conditions 支持多个上游任务，但只支持两个下游任务。当上游任务数超过一个时，可以通过且 以及或... -
PostgreSql
Support Those Engines Description Using Dependency For Spark/Flink Engine For SeaTunnel Zeta Engine Key Features Supported DataSource Info Database Dependency Data Type Map... -
List
all any append concat drop zipWith zip xprod uniq filter find flatten head indexOf join lastIndexOf map nth pluck prepend range reduce reduceRight reject re...