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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... -
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... -
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... -
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... -
checkpoint-storage
Checkpoint Storage Introduction Checkpoint Storage Checkpoint Storage Configuration OSS S3 HDFS LocalFile Enable cache Checkpoint Storage Introduction Checkpoint is a f... -
Utilities
_.constant(value) Arguments Returns Example _.createCallback([func=identity], [thisArg], [argCount]) Arguments Returns Example _.escape(string) Arguments Returns Example ... -
Kyuubi v.s. Spark Thrift JDBC/ODBC Server (STS)
Introductions Barriers to common Spark job usage High Barrier Insecurity Compatibility Bootstrap latency Limitations of Spark ThriftServer Driver Bottleneck Resource isolati...