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arrow

Apache Arrow is a cross-language development platform for in-memory data. It specifies a standardized language-independent columnar memory format for flat and hierarchical data, organized for efficient analytic operations on modern hardware. It also provides computational libraries and zero-copy streaming messaging and interprocess communication. Languages currently supported include C, C++, Java, JavaScript, Python, and Ruby.

arrow-datafusion

Apache Arrow DataFusion and Ballista query engines

arrow-datafusion-comet

Apache Arrow DataFusion Comet Spark Accelerator

arthas

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas

async-profiler

Sampling CPU and HEAP profiler for Java featuring AsyncGetCallTrace + perf_events

blaze

Blazing-fast query execution engine speaks Apache Spark language and has Arrow-DataFusion at its core.

celeborn

Apache Celeborn is an elastic and high-performance service for shuffle and spilled data.

clickhouse

ClickHouse® is a free analytics DBMS for big data

databend

An elastic and reliable Modern Cloud Data Warehouse, offers Blazing Fast Query and combines Elasticity, Simplicity, Low cost of the Cloud, built to make the Data Cloud easy

duckdb

DuckDB is an in-process SQL OLAP Database Management System

gluten

hyperspace

An open source indexing subsystem that brings index-based query acceleration to Apache Spark™ and big data workloads.

iceberg

Apache Iceberg

incubator-doris

Apache Doris(Incubating) is an MPP-based interactive SQL data warehousing for reporting and analysis.

parquet-mr

Apache Parquet

spark

Apache Spark

velox

A C++ vectorized database acceleration library aimed to optimizing query engines and data processing systems.