--- --- <link rel="stylesheet" href="css/toc.css"> h2. Getting Started * "Concepts":./ * "Hello, Druid":./Tutorial:-A-First-Look-at-Druid.html * "Tutorials":./Tutorials.html * "Evaluate Druid":./Evaluate.html h2. Data Ingestion * "Overview":./Ingestion-overview.html * "Data Formats":./Data_formats.html * "Realtime Ingestion":./Realtime-ingestion.html * "Batch Ingestion":./Batch-ingestion.html * "FAQ":./Ingestion-FAQ.html h2. Querying * "Overview":./Querying.html * "Timeseries":./TimeseriesQuery.html * "TopN":./TopNQuery.html * "GroupBy":./GroupByQuery.html * "Time Boundary":./TimeBoundaryQuery.html * "Segment Metadata":./SegmentMetadataQuery.html * "DataSource Metadata":./DataSourceMetadataQuery.html * "Search":./SearchQuery.html h2. Design * Storage ** "Segments":./Segments.html * Node Types ** "Historical":./Historical.html ** "Broker":./Broker.html ** "Coordinator":./Coordinator.html ** "Indexing Service":./Indexing-Service.html ** "Realtime":./Realtime.html * Dependencies ** "Deep Storage":./Deep-Storage.html ** "Metadata Storage":./Metadata-storage.html ** "ZooKeeper":./ZooKeeper.html h2. Operations * "Good Practices":Recommendations.html * "Including Extensions":./Including-Extensions.html * "Data Retention":./Rule-Configuration.html * "Metrics and Monitoring":./Metrics.html * "Updating the Cluster":./Rolling-Updates.html * "Different Hadoop Versions":./Other-Hadoop.html * "Performance FAQ":./Performance-FAQ.html h2. Configuration * "Common Configuration":./Configuration.html * "Indexing Service":./Indexing-Service-Config.html * "Coordinator":./Coordinator-Config.html * "Historical":./Historical-Config.html * "Broker":./Broker-Config.html * "Realtime":./Realtime-Config.html * "Configuring Logging":./Logging.html * "Simple Cluster Configuration":./Simple-Cluster-Configuration.html * "Production Cluster Configuration":./Production-Cluster-Configuration.html * "Production Hadoop Configuration":./Hadoop-Configuration.html h2. Development * "Libraries":./Libraries.html * "Extending Druid":./Modules.html * "Build From Source":./Build-from-source.html * "Versioning":./Versioning.html * Experimental Features ** "Overview":./About-Experimental-Features.html ** "Geographic Queries":./GeographicQueries.html ** "Select Query":./SelectQuery.html ** "Approximate Histograms and Quantiles":./ApproxHisto.html ** "Router node":./Router.html h2. Misc * "Papers & Talks":./Papers-and-talks.html * "Thanks":/thanks.html