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Mirror of Apache Calcite

Mirror of Apache Spark

🔎 Open source distributed and RESTful search engine.

手把手教你使用JavaNIO构建Actor模式的高性能分布式系统

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从hadoop抽离出来的rpc代码

A web UI for zookeeper

I hacked jnotify-0.94 for self-contain. see origin v0.94 via:

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Hive on Spark

Mirror of Apache Spark

A very basic working version of jsp jstl application with option to create employee.

SMSLib v3.5.x

Mirror of Apache Flume

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Java Native Access

Mirror of Apache Kafka

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Copy from com.den_4.inotify-java, origin auther Nick Bargnesi

Frameworks

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A log collection service of DP front-end application

An efficient database query optimizer for large complex join queries

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A Member Management System with SMS

Public hadoop release repository

Public hive release repository

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写这个是因为买车的时候碰到贷款还是全款划算，然后怀疑销售所提供的利率数字，就写了些代码来计算下车贷是否划算

Model driven data quality service

Mirror of Apache Zeppelin

Mirror of Apache Hadoop

Allows to use Scala and Java 8 types with gson library.

My personal maven repository based on git

Mirror of Apache Eagle

Mastering Apache Spark 2

Kerberos and Hadoop: The Madness beyond the Gate

GitHub Contribution Graph Hack

Performance monitoring and tuning tool for Apache Hadoop

Small set of tools for JVM troublshooting, monitoring and profiling.

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公历(阳历)农历(阴历)转换，支持时间段从1900-2100

Qubole Sparklens tool for performance tuning Apache Spark

A Spark Atlas connector to track data lineage in Apache Atlas

Open source platform for the machine learning lifecycle

Mirror of Apache livy (Incubating)

Following along with the Hive tutorial at StrataConf / HadoopWorld

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An open-source storage layer that brings scalable, ACID transactions to Apache Spark™ and big data workloads.

Apache Parquet

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Apache Hive

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Carbon Language's main repository: documents, design, implementation, and related tools. (NOTE: Carbon Language is experimental; see README)

Cloud Shuffle Service(CSS) is a general purpose remote shuffle solution for compute engines, including Spark/Flink/MapReduce.

Remote shuffle service for Apache Spark to store shuffle data on remote servers.

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Uniffle is a high performance, general purpose Remote Shuffle Service.

Generate tpch data in parquet format

Bridge Claude Code sessions to Slack — chat with Claude from your phone via Slack threads.

🆕 Find the k-nearest neighbors (k-NN) for your vector data

Apache Lucene open-source search software

Java bindings for Apache DataFusion

Apache DataFusion SQL Query Engine

Official workloads used by OpenSearch Benchmark (OSB)

An independent Python feature port of Claude Code, entirely rewritten from scratch using oh-my-codex. Educational Purpose only.

Community Java bindings for https://github.com/facebookincubator/velox

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Axiom is a set of reusable and extensible components designed to be compatible with Velox. Its primary purpose is to simplify the process of building front-ends for query execution powered by Velox.

[EMNLP2025] "LightRAG: Simple and Fast Retrieval-Augmented Generation"

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The documentation for OpenSearch, OpenSearch Dashboards, and their associated plugins.

Spark Accelerator framework ; It enables secondary indices to remote data stores.

TPC-H benchmark kit for OpenSearch PPL

Query your data using familiar SQL or intuitive Piped Processing Language (PPL)

📊 Open source visualization dashboards for OpenSearch.

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Use ChatGPT On Wechat via wechaty

SparkSQL自定义Hint优化器解决热点数据导致JOIN数据倾斜问题

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