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File Systems

This section contains a collection of short guides to show you how to import data from a Pinot-supported file system.

FileSystem is an abstraction provided by Pinot to access data stored in distributed file systems (DFS).

Pinot uses distributed file systems for the following purposes:

  • Batch ingestion job: To read the input data (CSV, Avro, Thrift, etc.) and to write generated segments to DFS.

  • Controller: When a segment is uploaded to the controller, the controller saves it in the configured DFS.

  • Server:- When a server(s) is notified of a new segment, the server copies the segment from remote DFS to their local node using the DFS abstraction.

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Supported file systems

Pinot lets you choose a distributed file system provider. The following file systems are supported by Pinot:

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Enabling a file system

To use a distributed file system, you need to enable plugins. To do that, specify the plugin directory and include the required plugins:

-Dplugins.dir=/opt/pinot/plugins -Dplugins.include=pinot-plugin-to-include-1,pinot-plugin-to-include-2

You can change the file system in the controller and server configuration. In the following configuration example, the URI is s3://bucket/path/to/file and scheme refers to the file system URI prefix s3.

You can also change the file system during ingestion. In the ingestion job spec, specify the file system with the following configuration:

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