Edgepedia

Apache DataFusion Comet

Apache DataFusion Comet (DataFusion Comet) is an open-source Apache Spark plugin, originally from Apple, that runs Spark SQL queries on the Rust-based DataFusion engine on CPUs, with fallback to Spark; benchmarked 1.57–1.75× on TPC-DS 3TB.

Apache DolphinScheduler

Apache DolphinScheduler (formerly EasyScheduler) is an Apache top-level, open-source distributed visual DAG workflow orchestration platform for data pipelines, with master/worker/api/alert services, 30+ task types, and Zookeeper-based high availability.

Apache Doris

Apache Doris (formerly Baidu Palo) is an Apache top-level MPP real-time analytical database with sub-second queries, MySQL protocol compatibility, FE/BE architecture, and 4.0/4.1 AI, vector, and lakehouse features.

Apache Drill

Apache Drill is an open-source, schema-free distributed SQL query engine for Hadoop, NoSQL, and cloud storage, inspired by Google Dremel. Entered the Apache Incubator in 2012, became a top-level project in 2014, latest release 1.22.0 (2025) supporting Java 11/17/21.

Apache Druid

Apache Druid is an open-source distributed real-time analytics (OLAP) database begun at Metamarkets in 2011, using time-partitioned columnar segments, Kafka/Kinesis streaming ingestion, and Druid SQL; latest release 38.0.0, October 2026.

Apache Flink

Apache Flink is an open-source framework and distributed processing engine for stateful computations over data streams, which grew out of a research project begun in 2009 at TU Berlin.

Apache Flume

Apache Flume is a distributed, reliable Apache service (also Flume NG) for collecting, aggregating, and moving large volumes of log/event data via source-channel-sink agents into stores like HDFS; incubated 2011, graduated 2012, merged into Logging Services 2023.

Apache Fluss

Apache Fluss (German for river) is a lakehouse-native streaming storage system for real-time analytics and AI, started at Alibaba Cloud in 2023, incubated 2025, an Apache TLP since July 2026, with Fluss 1.0 as its first TLP release.

Apache Gluten

Apache Gluten is an open-source Spark plugin, started by Intel and Kyligence in 2022, that offloads Spark SQL execution to native Velox or ClickHouse engines via Substrait and JNI, reporting about 3x TPC-H/TPC-DS speedups; it became an Apache Top-Level Project in 2026.

Apache Gobblin

Apache Gobblin: open-source distributed data integration framework for streaming and batch ingestion, replication, organization, and lifecycle management. Built at LinkedIn (2014), Apache Incubator 2017, Top-Level Project 2021.

Apache Gravitino

Apache Gravitino is an Apache Software Foundation top-level project, a high-performance, geo-distributed, federated metadata lake (catalog of catalogs) for data and AI assets, incubating from June 2024 and graduating June 3, 2025.

Apache Griffin

Apache Griffin was an Apache Software Foundation open-source data quality platform for big data, batch and streaming, built on Hadoop and Spark. Entered incubation 2016, graduated November 2018, retired to the Apache Attic in 2025 (ATTIC-246); final release 0.6.0.

Apache Hadoop

Apache Hadoop is an open-source framework for storing and processing large data sets across clusters of commodity computers, combining HDFS storage with MapReduce processing and YARN resource management.

Apache HBase

Apache HBase is an open-source distributed NoSQL data store modeled after Google Bigtable, running on HDFS. Started in 2006 at Powerset, it powers high-throughput uses like Facebook Messages.

Apache Hive

Apache Hive is an open-source data warehouse system built on Apache Hadoop that queries very large datasets using SQL; developed at Facebook from 2007 and open sourced in 2008.

Apache Hop

Apache Hop (Hop Orchestration Platform) is an open source, metadata-driven data integration and orchestration platform forked from Pentaho Kettle in 2019, an ASF Top-Level Project since January 2022, with 250+ pipeline transforms and Beam/Spark runtimes.

Apache HTTP Server

The Apache HTTP Server, commonly called Apache or Apache2, is a free open-source web server developed by the Apache Software Foundation, begun in 1995 as patches to the NCSA HTTPd server.

Apache Hudi

Apache Hudi is an open-source data lakehouse table format providing atomic upserts, deletes, and incremental change streams over Hadoop-compatible and cloud object storage, developed at Uber in 2016.

Apache Iceberg

Apache Iceberg is an open table format that turns files in object storage into versioned, ACID-compliant tables, originated at Netflix and now an Apache project.

APACHE II

APACHE II (Acute Physiology and Chronic Health Evaluation II) is a severity scoring system for critically ill ICU patients, published in 1985 by Knaus and colleagues.

Apache Impala

Apache Impala is an open-source MPP SQL query engine in C++ and Java for Hadoop, Iceberg, Kudu, and cloud storage, developed at Cloudera, an Apache top-level project since 2017, latest release 4.5.3.

Sep 19, 2026

Apache Indian

Steven Kapur, stage name Apache Indian, is a Birmingham-born English ragga and bhangra artist who popularized the "Bhangram" fusion style and a major hit in 1993.

Apache InLong

Apache InLong (应龙), formerly TubeMQ, is an Apache top-level data integration framework from Tencent supporting ingestion, synchronization, and subscription; incubated 2019, renamed 2021, graduated 2022-06-15.

Apache JMeter

Apache JMeter is an open source, 100% Java application for load and performance testing, originally written by Stefano Mazzocchi for testing Apache JServ and first released in 1998.

Apache Kafka

Apache Kafka is an open-source distributed event streaming platform, developed at LinkedIn and maintained by the Apache Software Foundation, that captures, stores, and processes event streams in real time.

Apache Kafka protocol

The Apache Kafka protocol is Kafka's binary TCP wire protocol: size-delimited request-response pairs, ApiVersions negotiation since 0.10.0.0, KIP-482 flexible versions, and KIP-896's removal of pre-2.1 API versions in Kafka 4.0.

Apache Kudu

Apache Kudu is a distributed columnar storage engine for the Hadoop ecosystem, born at Cloudera and a top-level Apache project since 2016, combining fast inserts, updates, and MVCC/Raft consistency with Parquet-comparable analytics.

Apache Kylin

Apache Kylin is an open source distributed OLAP engine originating at eBay (2014) and an Apache top-level project since 2015, using cube pre-computation for sub-second SQL queries on trillion-record datasets; Kylin 5 adds internal tables, Gluten-ClickHouse native engine, and Kafka streaming-batch fusion.

Apache Kyuubi

Apache Kyuubi is a distributed, multi-tenant Thrift JDBC/ODBC SQL gateway (serverless SQL on lakehouses) built on Apache Spark and other engines like Flink, Trino, and Doris; a NetEase-born Apache top-level project since 2022.