Lakehouse: Difference between revisions

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=Overview=
=Overview=
An architectural pattern used to implement access to data that is based on open direct-access data formats (such as Apache Parquet and ORC), has support for machine learning and data science and offers state-of-the-art performance. It is based on the concept of [[Data Lake]].
An architectural pattern used to implement access to data that is based on open direct-access [[Data Formats|data formats]] (such as Apache Parquet and ORC), has support for machine learning and data science and offers state-of-the-art performance. The implementation of a Lakehouse pattern is a data management system, which provides traditional analytical DBMS management and performance features such as ACID transactions, data versioning, auditing, indexing, caching and query optimization. It hovers of a [[Data Lake]] and combines its key benefits with those of a [[Data Warehouse|data warehouse]]. Works well with cloud environment where compute and storage are separated.
 
A lakehouse stores data in low-cost objects stores (S3) using a standard file format such as [[Apache Parquet]], but also implements a transactional metadata layer on top of the object store that defines which objects are part of a table version.


[[File:Lakehouse.png|1000px]]
[[File:Lakehouse.png|1000px]]


=Related Concepts=
=Related Concepts=
[[Data Warehouse]]. Schema-on-write. Business Intelligence (BI).  Unstructured data. [[Data Lake]]. Schema-on-read. ETL, ELT, [[Machine Learning]], data management, zero-copy cloning.
[[Data Warehouse]]. Schema-on-write. Business Intelligence (BI).  Unstructured data. [[Data Lake]]. Schema-on-read. ETL, ELT, [[Machine Learning]], data management, zero-copy cloning. DataFrame and declarative DataFrame API, data pipeline, batch job, streaming pipeline, SQL engines: (Spark SQL, [[PrestoDB]], [[Hive]], AWS Athena), data layout optimizations.
 
=Implementations=
=Implementations=
* [[Apache Iceberg]]
* [[Apache Iceberg]]

Latest revision as of 23:17, 18 May 2023

External

Internal

Overview

An architectural pattern used to implement access to data that is based on open direct-access data formats (such as Apache Parquet and ORC), has support for machine learning and data science and offers state-of-the-art performance. The implementation of a Lakehouse pattern is a data management system, which provides traditional analytical DBMS management and performance features such as ACID transactions, data versioning, auditing, indexing, caching and query optimization. It hovers of a Data Lake and combines its key benefits with those of a data warehouse. Works well with cloud environment where compute and storage are separated.

A lakehouse stores data in low-cost objects stores (S3) using a standard file format such as Apache Parquet, but also implements a transactional metadata layer on top of the object store that defines which objects are part of a table version.

Lakehouse.png

Related Concepts

Data Warehouse. Schema-on-write. Business Intelligence (BI). Unstructured data. Data Lake. Schema-on-read. ETL, ELT, Machine Learning, data management, zero-copy cloning. DataFrame and declarative DataFrame API, data pipeline, batch job, streaming pipeline, SQL engines: (Spark SQL, PrestoDB, Hive, AWS Athena), data layout optimizations.

Implementations