Apache Druid v0.20.0 Documentation
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Design

来源 1 浏览 518 扫码 打印 2021-04-05 23:00:42
  • Deep storage
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  • Configuration
    • Extensions
    • Configuration reference
    • Logging
  • Design
    • Deep storage
    • Metadata storage
    • Segments
    • ZooKeeper
    • Processes and servers
    • Design
  • Development
    • Creating extensions
    • Developing on Druid
    • Build from source
    • Versioning
    • Experimental features
    • JavaScript functionality
  • Getting started
    • Docker
    • Quickstart
    • Single server deployment
    • Introduction to Apache Druid
    • Clustered deployment
  • Hidden
    • Timestamp Min/Max aggregators
    • Indexing Service
    • OpenTSDB Emitter
    • ORC Extension
    • DataSketches Tuple Sketch module
    • GCE Extensions
    • Apache Druid vs Redshift
    • Bloom Filter
    • DataSketches extension
    • Simple SSLContext Provider Module
    • Authentication and Authorization
    • Apache Avro
    • InfluxDB Emitter
    • Apache Druid vs Spark
    • Globally Cached Lookups
    • Approximate Histogram aggregators
    • Apache Druid vs SQL-on-Hadoop
    • Ambari Metrics Emitter
    • Materialized View
    • S3-compatible
    • Broker
    • Apache Kafka Lookups
    • HDFS
    • Coordinator Process
    • T-Digest Quantiles Sketch module
    • Moving Average Query
    • Apache Parquet Extension
    • Apache Cassandra
    • Kafka Emitter
    • Cardinality/HyperUnique aggregators
    • Moment Sketches for Approximate Quantiles module
    • Kerberos
    • Basic Security
    • DataSketches Quantiles Sketch module
    • Microsoft Azure
    • Google Cloud Storage
    • InfluxDB Line Protocol Parser
    • Select
    • DataSketches Theta Sketch module
    • Overlord Process
    • Aliyun OSS
    • Router Process
    • Apache Druid vs Elasticsearch
    • Peons
    • Historical Process
    • Microsoft SQLServer
    • Indexer Process
    • Apache Ranger Security
    • Stats aggregator
    • DistinctCount Aggregator
    • Thrift
    • Graphite Emitter
    • Test Stats Aggregators
    • Protobuf
    • Realtime Process
    • Druid pac4j based Security extension
    • StatsD Emitter
    • DataSketches HLL Sketch module
    • PostgreSQL Metadata Store
    • Rackspace Cloud Files
    • MySQL Metadata Store
    • Cached Lookup Module
    • Apache Druid vs Kudu
    • MiddleManager Process
    • Apache Druid vs. Key/Value Stores (HBase/Cassandra/OpenTSDB)
    • Druid Redis Cache
  • Ingestion
    • Data management
    • Schema design tips
    • Ingestion
    • Data formats
    • Batch ingestion
      • Troubleshooting FAQ
      • Task reference
      • Hadoop-based
      • Native batch
    • Stream ingestion
      • Tranquility
      • Apache Kafka
      • Amazon Kinesis
  • Misc
    • Papers
  • Operations
    • API reference
    • HTTP compression
    • reset-cluster tool
    • Metrics
    • pull-deps tool
    • TLS support
    • Web console
    • Getting started with Apache Druid
    • Working with different versions of Apache Hadoop
    • Basic cluster tuning
    • insert-segment-to-db tool
    • High availability
    • Password providers
    • Rolling updates
    • Retaining or automatically dropping data
    • Alerts
    • dump-segment tool
    • Misc
      • Metadata Migration
      • Export Metadata Tool
      • Content for build.sbt
      • Legacy Management UIs
      • Deep storage migration
      • Segment Size Optimization
  • Querying
    • Query execution
    • Native queries
    • Druid SQL
    • Concepts
      • Datasources
      • Query caching
      • Lookups
      • Multitenancy
      • Joins
      • Context parameters
      • Multi-value dimensions
    • Native query components
      • Virtual columns
      • Spatial filters
      • Granularities
      • Aggregations
      • Having filters (groupBy)
      • Sorting and limiting (groupBy)
      • String comparators
      • Dimensions
      • Expressions
      • Post-aggregations
      • Sorting (topN)
      • Filters
    • Native query types
      • Search
      • Timeseries
      • TimeBoundary
      • SegmentMetadata
      • GroupBy
      • DatasourceMetadata
      • TopN
      • Scan
  • Tutorials
    • Configuring data retention
    • Querying data
    • Roll-up
    • Updating existing data
    • Kerberized HDFS deep storage
    • Compacting segments
    • Transforming input data
    • Loading files natively
    • Deleting data
    • Writing an ingestion spec
    • Load from Apache Hadoop
    • Load from Apache Kafka
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