Apache Druid: a high performance real-time analytics database.
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Gian Merlino a5170666b6 groupBy v2: Always merge queries. (#4023)
This fixes #4020 because it means the timestamp will always be included for outermost
queries. Historicals receiving queries from older brokers will think they're
outermost (because CTX_KEY_OUTERMOST isn't set to "false"), so they'll include a
timestamp, so the older brokers will be OK.
2017-03-08 12:47:46 -06:00
api Namespace optimization for hdfs data segments. (#3877) 2017-03-01 09:51:20 -08:00
aws-common Bump version to 0.10.0-SNAPSHOT. (#3913) 2017-02-06 17:54:35 -08:00
benchmarks Add default configuration for select query 'fromNext' parameter (#3986) 2017-03-01 17:05:35 -08:00
bytebuffer-collections Optimizations of union, intersection and iterators of concise bitsets (part of #3798) (#3883) 2017-02-10 18:02:26 -08:00
codestyle Checkstyle rule to outlaw tabs. (#3988) 2017-02-28 23:52:53 -08:00
common LifecycleLock for better synchronization in lifecycled objects (#3964) 2017-03-02 12:22:57 -08:00
distribution Require Java 8 and include some Java 8 dependencies. (#3914) 2017-02-14 12:51:51 -08:00
docs SQL: Fix example INFORMATION_SCHEMA query. (#4017) 2017-03-06 16:07:47 -08:00
examples Bump version to 0.10.0-SNAPSHOT. (#3913) 2017-02-06 17:54:35 -08:00
extendedset Checkstyle rule to outlaw tabs. (#3988) 2017-02-28 23:52:53 -08:00
extensions-contrib TmpFileIOPeons to create files under the merging output directory, instead of java.io.tmpdir (#3990) 2017-03-02 14:05:12 -08:00
extensions-core Ignore chunkPeriod for groupBy v2, fix chunkPeriod for irregular periods. (#4004) 2017-03-06 12:27:02 -06:00
hll pre-computed HLL support for hyperUnique aggregator (#3909) 2017-02-13 15:26:20 -08:00
indexing-hadoop TmpFileIOPeons to create files under the merging output directory, instead of java.io.tmpdir (#3990) 2017-03-02 14:05:12 -08:00
indexing-service increase kill timeout (#4002) 2017-03-08 09:00:34 -08:00
integration-tests Checkstyle rule to outlaw tabs. (#3988) 2017-02-28 23:52:53 -08:00
java-util Let toDateTime call fall through for Duration Granularity (#4001) 2017-03-03 13:27:22 -06:00
processing groupBy v2: Always merge queries. (#4023) 2017-03-08 12:47:46 -06:00
publications Changes to lambda architecture paper required for HICSS (#3382) 2016-09-06 21:32:21 -07:00
server Fix a couple bugs due to calling Period.getMillis(). (#4006) 2017-03-05 18:44:20 +05:30
services TmpFileIOPeons to create files under the merging output directory, instead of java.io.tmpdir (#3990) 2017-03-02 14:05:12 -08:00
sql SQL: Clarify approximate distinct count behavior. (#4000) 2017-03-03 13:42:30 -08:00
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.travis.yml Require Java 8 and include some Java 8 dependencies. (#3914) 2017-02-14 12:51:51 -08:00
CONTRIBUTING.md Add doc link to eclipse formatting settings as well (#3131) 2016-06-24 15:27:50 -07:00
DruidCorporateCLA.pdf fix CLA email / mailing address 2014-04-17 15:26:28 -07:00
DruidIndividualCLA.pdf fix CLA email / mailing address 2014-04-17 15:26:28 -07:00
LICENSE Clean up README and license 2015-02-18 23:09:28 -08:00
NOTICE Migrating extendedset from Metamarkets. (#3694) 2017-01-17 10:10:27 -08:00
README.md update readme (#2830) 2016-04-13 11:33:31 -07:00
druid_intellij_formatting.xml Make formatting IntelliJ 2016 friendly (#2978) 2016-05-18 12:42:21 -07:00
eclipse.importorder Merge pull request #2905 from javasoze/eclipse_formatting 2016-04-29 18:42:03 -07:00
eclipse_formatting.xml Merge pull request #2905 from javasoze/eclipse_formatting 2016-04-29 18:42:03 -07:00
pom.xml BACKEND-564: Emitter upgrade from 0.4.0 to 0.4.1 (#3977) 2017-03-01 13:03:01 -08:00
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README.md

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Druid

Druid is a distributed, column-oriented, real-time analytics data store that is commonly used to power exploratory dashboards in multi-tenant environments.

Druid excels as a data warehousing solution for fast aggregate queries on petabyte sized data sets. Druid supports a variety of flexible filters, exact calculations, approximate algorithms, and other useful calculations.

Druid can load both streaming and batch data and integrates with Samza, Kafka, Storm, Spark, and Hadoop.

License

Apache License, Version 2.0

More Information

More information about Druid can be found on http://www.druid.io.

Documentation

You can find the documentation for the latest Druid release on the project website.

If you would like to contribute documentation, please do so under /docs/content in this repository and submit a pull request.

Getting Started

You can get started with Druid with our quickstart.

Reporting Issues

If you find any bugs, please file a GitHub issue.

Community

Community support is available on the druid-user mailing list(druid-user@googlegroups.com).

Development discussions occur on the druid-development list(druid-development@googlegroups.com).

We also have a couple people hanging out on IRC in #druid-dev on irc.freenode.net.

Contributing

Please follow the guidelines listed here.