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Gitter docs on_gitbook

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Docs

Visit docs.quiltdata.com. Or browse the docs on GitHub.

Manage data like code

Quilt provides versioned, reusable building blocks for analysis in the form of data packages. A data package may contain data of any type or size. In spirit, Quilt does for data what package managers and Docker registries do for code: provide a centralized, collaborative store of record.

Getting started tutorial

Benefits

  • Reproducibility - Imagine source code without versions. Ouch. Why live with un-versioned data? Versioned data makes analysis reproducible by creating unambiguous references to potentially complex data dependencies.
  • Collaboration and transparency - Data likes to be shared. Quilt offers a centralized data warehouse for finding and sharing data.
  • Auditing - the registry tracks all reads and writes so that admins know when data are accessed or changed
  • Less data prep - the registry abstracts away network, storage, and file format so that users can focus on what they wish to do with the data.
  • Deduplication - Data fragments are hashed with SHA256. Duplicate data fragments are written to disk once globally per user. As a result, large, repeated data fragments consume less disk and network bandwidth.
  • Faster analysis - Serialized data loads 5 to 20 times faster than files. Moreover, specialized storage formats like Apache Parquet minimize I/O bottlenecks so that tools like Presto DB and Hive run faster.

Commands

Here are the basic Quilt commands:

Service

Quilt is offered as a managed service at quiltdata.com.

Architecture

Quilt consists of three source-level components:

  1. A data catalog

    • Displays package meta-data in HTML
    • Implemented with JavaScript with redux, sagas

  2. A data registry

    • Controls permissions
    • Stores package fragments in blob storage
    • Stores package meta-data
    • De-duplicates repeated data fragments
    • Implemented in Python with Flask and PostgreSQL

  3. A data compiler

    • Serializes tabular data to Apache Parquet
    • Transforms and parses files
    • builds packages locally
    • pushes packages to the registry
    • pulls packages from the registry
    • Implemented in Python with pandas and PyArrow