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  • Introduction
  • Basics
    • Concepts
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    • Components
      • Cluster
        • Tenant
        • Server
        • Controller
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      • Table
        • Segment
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    • Getting Started
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      • Running in Kubernetes
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      • Batch import example
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      • Troubleshooting Pinot
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    • Import Data
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      • File Systems
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      • Input formats
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      • 0.12.1
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      • Use OSS as Deep Storage for Pinot
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      • Creating Pinot Segments
      • Use S3 as Deep Storage for Pinot
      • Use S3 and Pinot in Docker
      • Batch Data Ingestion In Practice
      • Schema Evolution
  • For Developers
    • Basics
      • Extending Pinot
        • Writing Custom Aggregation Function
        • Segment Fetchers
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    • Advanced
      • Data Ingestion Overview
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      • Use the multi-stage query engine (v2)
      • Troubleshoot issues with the multi-stage query engine (v2)
      • Advanced Pinot Setup
    • Plugins
      • Write Custom Plugins
        • Input Format Plugin
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    • Design Documents
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  • For Operators
    • Deployment and Monitoring
      • Set up cluster
      • Server Startup Status Checkers
      • Set up table
      • Set up ingestion
      • Decoupling Controller from the Data Path
      • Segment Assignment
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      • Rebalance
        • Rebalance Servers
        • Rebalance Brokers
      • Separating data storage by age
        • Using multiple tenants
        • Using multiple directories
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      • Access Control
      • Monitoring
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        • Query Routing using Adaptive Server Selection
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      • Upgrading Pinot with confidence
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    • Command-Line Interface (CLI)
    • Configuration Recommendation Engine
    • Tutorials
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        • ZkBasicAuthAccessControl
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      • Performance Optimization Configurations
  • Configuration Reference
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    • Controller
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      • ABS
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      • TIMECONVERT
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      • TOJSONMAPSTR
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      • week
      • year
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      • Extract
    • Plugin Reference
      • Stream Ingestion Connectors
      • VAR_POP
      • VAR_SAMP
      • STDDEV_POP
      • STDDEV_SAMP
  • Reference
    • Single-stage query engine (v1)
    • Multi-stage query engine (v2)
  • RESOURCES
    • Community
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    • Blogs
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  • Integrations
    • Tableau
    • Trino
    • ThirdEye
    • Superset
    • Presto
    • Spark-Pinot Connector
  • Contributing
    • Contribute Pinot documentation
    • Style guide
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  1. Basics
  2. Components
  3. Cluster

Server

Uncover the efficient data processing and storage capabilities of Apache Pinot's server component, optimizing performance for data-driven applications.

PreviousTenantNextController

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Servers host the data segments and serve queries off the data they host. There are two types of servers:

Offline Offline servers are responsible for downloading segments from the segment store, to host and serve queries off. When a new segment is uploaded to the controller, the controller decides the servers (as many as replication) that will host the new segment and notifies them to download the segment from the segment store. On receiving this notification, the servers download the segment file and load the segment onto the server, to server queries off them.

Real-time Real-time servers directly ingest from a real-time stream (such as Kafka or EventHubs). Periodically, they make segments of the in-memory ingested data, based on certain thresholds. This segment is then persisted onto the segment store.

Pinot servers are modeled as Helix participants, hosting Pinot tables (referred to as resources in Helix terminology). Segments of a table are modeled as Helix partitions (of a resource). Thus, a Pinot server hosts one or more Helix partitions of one or more helix resources (i.e. one or more segments of one or more tables).

Starting a server

Usage: StartServer
	-serverHost               <String>                      : Host name for controller. (required=false)
	-serverPort               <int>                         : Port number to start the server at. (required=false)
	-serverAdminPort          <int>                         : Port number to serve the server admin API at. (required=false)
	-dataDir                  <string>                      : Path to directory containing data. (required=false)
	-segmentDir               <string>                      : Path to directory containing segments. (required=false)
	-zkAddress                <http>                        : Http address of Zookeeper. (required=false)
	-clusterName              <String>                      : Pinot cluster name. (required=false)
	-configFileName           <Config File Name>            : Broker Starter Config file. (required=false)
	-help                                                   : Print this message. (required=false)

docker run \
    --network=pinot-demo \
    --name pinot-server \
    -d ${PINOT_IMAGE} StartServer \
    -zkAddress pinot-zookeeper:2181
bin/pinot-admin.sh StartServer \
    -zkAddress localhost:2181

Make sure you've . If you're using Docker, make sure to . To start a server:

set up Zookeeper
pull the Pinot Docker image