Apache Druid: a high performance real-time analytics database.
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Akshat Jain 135ca8f6a7
WindowOperatorQueryFrameProcessor: Fix frame writer capacity issues + adhere to FrameProcessor's contract (#17209)
This PR fixes the above issue by maintaining the state of last rowId flushed to output channel, and triggering another iteration of runIncrementally() method if frame writer has rows pending flush to the output channel.

The above is done keeping in mind FrameProcessor's contract which enforces that we should write only a single frame to each output channel in any given iteration of runIncrementally().
2024-10-03 10:39:22 +05:30
.github GHA steps to collect and upload heap dumps to debug UT OOM errors (#17029) 2024-09-12 09:06:35 -04:00
.idea Change Inspection Profile to set "Method is identical to its super method" as error (#16976) 2024-08-31 09:37:34 +05:30
benchmarks Incorporate `estimatedComputeCost` into all `BitmapColumnIndex` classes. (#17125) 2024-09-25 23:11:26 -07:00
cloud Prepare master for 32.0.0 release (#17022) 2024-09-10 11:01:20 +05:30
codestyle MSQ: Add limitHint to global-sort shuffles. (#16911) 2024-09-03 09:05:29 -07:00
dev Provide `chmod` command for `-XX:OnOutOfMemoryError` from shell script (#17054) 2024-09-13 00:17:28 -04:00
distribution gRPC query extension (#15982) 2024-09-19 12:16:32 +05:30
docs docs: update future development blurbs (#16939) 2024-10-01 15:02:05 -07:00
examples Fix Multiple GC declared error when running Druid Cluster (#17078) 2024-09-20 11:06:13 +02:00
extensions-contrib Refactor pod template logic to make it easier to test (#17178) 2024-09-30 15:34:13 -07:00
extensions-core WindowOperatorQueryFrameProcessor: Fix frame writer capacity issues + adhere to FrameProcessor's contract (#17209) 2024-10-03 10:39:22 +05:30
hooks Git hooks should fail on errors; pass args to git hooks (#12322) 2022-03-10 09:07:50 +09:00
indexing-hadoop add DataSchema.Builder to tidy stuff up a bit (#17065) 2024-09-15 11:18:34 -07:00
indexing-service Skip generating task context reports for sub tasks (#17219) 2024-10-02 09:32:50 -04:00
integration-tests Allow MSQ engine only for compaction supervisors (#17033) 2024-09-24 17:19:16 +05:30
integration-tests-ex Remove some unnecessary JoinableFactoryWrappers. (#17051) 2024-09-16 11:32:12 +05:30
licenses Web console: change to use @fontsource/open-sans (#16786) 2024-07-23 21:28:59 -07:00
processing Decoupled planning: add support for unnest (#17177) 2024-10-02 08:54:56 +02:00
publications De-incubation cleanup in code, docs, packaging (#9108) 2020-01-03 12:33:19 -05:00
quidem-ut Add kttm-nested dataset and some usage sessions of it (#16867) 2024-09-26 15:24:23 +05:30
server MSQ profile for Brokers and Historicals. (#17140) 2024-10-01 14:38:55 -07:00
services MSQ profile for Brokers and Historicals. (#17140) 2024-10-01 14:38:55 -07:00
sql Decoupled planning: add support for unnest (#17177) 2024-10-02 08:54:56 +02:00
web-console Web console: misc fixes to the Explore view (#17213) 2024-10-02 08:52:08 -07:00
website Support to parse numbers in text-based input formats (#17082) 2024-09-19 13:21:18 -07:00
.asf.yaml .asf.yaml: Add required "repository" field. (#14499) 2023-06-28 15:05:07 -07:00
.backportrc.json Add 0.18.0 to .backportrc.json to facilitate backport. (#9661) 2020-04-11 13:49:04 -07:00
.codecov.yml Use Codecov (#8388) 2019-08-28 08:49:30 -07:00
.dockerignore Add docker container for druid (#6896) 2019-02-08 12:12:28 +00:00
.gitignore Quidem record (#16624) 2024-08-05 14:58:32 +02:00
.lgtm.yml be consistent about referring to the web console by its name (#13118) 2022-09-19 15:02:17 -07:00
CONTRIBUTING.md Document our conventions for writing messages (#13916) 2023-04-03 21:30:20 -07:00
LABELS Fixing security vulnerability check errors (#13956) 2023-03-23 11:10:06 +05:30
LICENSE Adding the PropertyNamingStrategies from jackson for fixing hadoop ingestion (#14671) 2023-08-01 20:02:43 +05:30
NOTICE Update notice file. (#15702) 2024-01-23 15:56:22 +05:30
README.md Fix workflow labeler parameter to match the correct status img (#16142) 2024-03-20 11:05:17 +05:30
README.template De-incubation cleanup in code, docs, packaging (#9108) 2020-01-03 12:33:19 -05:00
check_test_suite.py Update Hadoop3 as default build version (#14005) 2023-04-26 12:52:51 +05:30
check_test_suite_test.py remove Travis CI (#13789) 2023-02-10 01:46:56 -08:00
doap_Druid.rdf Fix the created property in DOAP RDF file (#14971) 2023-09-13 06:12:35 -07:00
it.sh Build reliablity fixes (#15048) 2023-09-28 12:27:52 -07:00
licenses.yaml Web console: revamp the experimental explore view (#17180) 2024-09-29 23:15:21 -07:00
owasp-dependency-check-suppressions.xml suppress cve (#16997) 2024-09-04 19:37:23 +05:30
pom.xml Migrated commons-lang usages to commons-lang3 (#17156) 2024-09-28 10:28:11 +02:00
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upload.sh Adding licenses and enable apache-rat-plugin. (#6215) 2018-09-18 08:39:26 -07:00

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Apache Druid

Druid is a high performance real-time analytics database. Druid's main value add is to reduce time to insight and action.

Druid is designed for workflows where fast queries and ingest really matter. Druid excels at powering UIs, running operational (ad-hoc) queries, or handling high concurrency. Consider Druid as an open source alternative to data warehouses for a variety of use cases. The design documentation explains the key concepts.

Getting started

You can get started with Druid with our local or Docker quickstart.

Druid provides a rich set of APIs (via HTTP and JDBC) for loading, managing, and querying your data. You can also interact with Druid via the built-in web console (shown below).

Load data

data loader Kafka

Load streaming and batch data using a point-and-click wizard to guide you through ingestion setup. Monitor one off tasks and ingestion supervisors.

Manage the cluster

management

Manage your cluster with ease. Get a view of your datasources, segments, ingestion tasks, and services from one convenient location. All powered by SQL systems tables, allowing you to see the underlying query for each view.

Issue queries

query view combo

Use the built-in query workbench to prototype DruidSQL and native queries or connect one of the many tools that help you make the most out of Druid.

Documentation

See the latest documentation for the documentation for the current official release. If you need information on a previous release, you can browse previous releases documentation.

Make documentation and tutorials updates in /docs using Markdown or extended Markdown (MDX). Then, open a pull request.

To build the site locally, you need Node 16.14 or higher and to install Docusaurus 2 with npm|yarn install in the website directory. Then you can run npm|yarn start to launch a local build of the docs.

If you're looking to update non-doc pages like Use Cases, those files are in the druid-website-src repo.

Community

Visit the official project community page to read about getting involved in contributing to Apache Druid, and how we help one another use and operate Druid.

  • Druid users can find help in the druid-user mailing list on Google Groups, and have more technical conversations in #troubleshooting on Slack.
  • Druid development discussions take place in the druid-dev mailing list (dev@druid.apache.org). Subscribe by emailing dev-subscribe@druid.apache.org. For live conversations, join the #dev channel on Slack.

Check out the official community page for details of how to join the community Slack channels.

Find articles written by community members and a calendar of upcoming events on the project site - contribute your own events and articles by submitting a PR in the apache/druid-website-src repository.

Building from source

Please note that JDK 8 or JDK 11 is required to build Druid.

See the latest build guide for instructions on building Apache Druid from source.

Contributing

Please follow the community guidelines for contributing.

For instructions on setting up IntelliJ dev/intellij-setup.md

License

Apache License, Version 2.0