| Master Branch: |
| [![Travis CI](https://travis-ci.org/apache/storm.svg?branch=master)](https://travis-ci.org/apache/storm) |
| [![Maven Version](https://maven-badges.herokuapp.com/maven-central/org.apache.storm/storm-core/badge.svg)](http://search.maven.org/#search|gav|1|g:"org.apache.storm"%20AND%20a:"storm-core") |
| |
| Storm is a distributed realtime computation system. Similar to how Hadoop provides a set of general primitives for doing batch processing, Storm provides a set of general primitives for doing realtime computation. Storm is simple, can be used with any programming language, [is used by many companies](http://storm.apache.org/documentation/Powered-By.html), and is a lot of fun to use! |
| |
| The [Rationale page](http://storm.apache.org/documentation/Rationale.html) explains what Storm is and why it was built. [This presentation](http://vimeo.com/40972420) is also a good introduction to the project. |
| |
| Storm has a website at [storm.apache.org](http://storm.apache.org). Follow [@stormprocessor](https://twitter.com/stormprocessor) on Twitter for updates on the project. |
| |
| ## Documentation |
| |
| Documentation and tutorials can be found on the [Storm website](http://storm.apache.org/documentation/Home.html). |
| |
| Developers and contributors should also take a look at our [Developer documentation](DEVELOPER.md). |
| |
| |
| ## Getting help |
| |
| __NOTE:__ The google groups account storm-user@googlegroups.com is now officially deprecated in favor of the Apache-hosted user/dev mailing lists. |
| |
| ### Storm Users |
| Storm users should send messages and subscribe to [user@storm.apache.org](mailto:user@storm.apache.org). |
| |
| You can subscribe to this list by sending an email to [user-subscribe@storm.apache.org](mailto:user-subscribe@storm.apache.org). Likewise, you can cancel a subscription by sending an email to [user-unsubscribe@storm.apache.org](mailto:user-unsubscribe@storm.apache.org). |
| |
| You can also [browse the archives of the storm-user mailing list](http://mail-archives.apache.org/mod_mbox/storm-user/). |
| |
| ### Storm Developers |
| Storm developers should send messages and subscribe to [dev@storm.apache.org](mailto:dev@storm.apache.org). |
| |
| You can subscribe to this list by sending an email to [dev-subscribe@storm.apache.org](mailto:dev-subscribe@storm.apache.org). Likewise, you can cancel a subscription by sending an email to [dev-unsubscribe@storm.apache.org](mailto:dev-unsubscribe@storm.apache.org). |
| |
| You can also [browse the archives of the storm-dev mailing list](http://mail-archives.apache.org/mod_mbox/storm-dev/). |
| |
| ### Which list should I send/subscribe to? |
| If you are using a pre-built binary distribution of Storm, then chances are you should send questions, comments, storm-related announcements, etc. to [user@storm.apache.org](mailto:user@storm.apache.org). |
| |
| If you are building storm from source, developing new features, or otherwise hacking storm source code, then [dev@storm.apache.org](mailto:dev@storm.apache.org) is more appropriate. |
| |
| ### What will happen with storm-user@googlegroups.com? |
| All existing messages will remain archived there, and can be accessed/searched [here](https://groups.google.com/forum/#!forum/storm-user). |
| |
| New messages sent to storm-user@googlegroups.com will either be rejected/bounced or replied to with a message to direct the email to the appropriate Apache-hosted group. |
| |
| ### IRC |
| You can also come to the #storm-user room on [freenode](http://freenode.net/). You can usually find a Storm developer there to help you out. |
| |
| ## License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| |
| ## Project lead |
| |
| * Nathan Marz ([@nathanmarz](http://twitter.com/nathanmarz)) |
| |
| ## Committers |
| |
| * James Xu ([@xumingming](https://github.com/xumingming)) |
| * Jason Jackson ([@jason_j](http://twitter.com/jason_j)) |
| * Andy Feng ([@anfeng](https://github.com/anfeng)) |
| * Flip Kromer ([@mrflip](https://github.com/mrflip)) |
| * David Lao ([@davidlao2k](https://github.com/davidlao2k)) |
| * P. Taylor Goetz ([@ptgoetz](https://github.com/ptgoetz)) |
| * Derek Dagit ([@d2r](https://github.com/d2r)) |
| * Robert Evans ([@revans2](https://github.com/revans2)) |
| * Michael G. Noll ([@miguno](https://github.com/miguno)) |
| * Kishor Patil ([@kishorvpatil](https://github.com/kishorvpatil)) |
| * Sriharsha Chintalapani([@harshach](https://github.com/harshach)) |
| * Sean Zhong ([@clockfly] (http://github.com/clockfly)) |
| * Kyle Nusbaum ([@knusbaum](https://github.com/knusbaum)) |
| * Parth Brahmbhatt ([@Parth-Brahmbhatt](https://github.com/Parth-Brahmbhatt)) |
| * Jungtaek Lim ([@HeartSaVioR](https://github.com/HeartSaVioR)) |
| * Aaron Dossett ([@dossett](https://github.com/dossett)) |
| * Matthias J. Sax ([@mjsax](https://github.com/mjsax)) |
| * Arun Mahadevan ([@arunmahadevan](https://github.com/arunmahadevan)) |
| * Boyang Jerry Peng ([@jerrypeng](https://github.com/jerrypeng)) |
| * Zhuo Liu ([@zhuoliu](https://github.com/zhuoliu)) |
| * Haohui Mai ([@haohui](https://github.com/haohui)) |
| * Sanket Chintapalli ([@redsanket](https://github.com/redsanket)) |
| * Longda Feng ([@longda](https://github.com/longdafeng)) |
| * John Fang ([@hustfxj](https://github.com/hustfxj)) |
| * Abhishek Agarwal ([@abhishekagarwal87](https://github.com/abhishekagarwal87)) |
| * Satish Duggana ([@satishd](https://github.com/satishd)) |
| |
| ## Contributors |
| |
| * Christopher Bertels ([@bakkdoor](http://twitter.com/bakkdoor)) |
| * Michael Montano ([@michaelmontano](http://twitter.com/michaelmontano)) |
| * Dennis Zhuang ([@killme2008](https://github.com/killme2008)) |
| * Trevor Smith ([@trevorsummerssmith](https://github.com/trevorsummerssmith)) |
| * Ben Hughes ([@schleyfox](https://github.com/schleyfox)) |
| * Alexey Kachayev ([@kachayev](https://github.com/kachayev)) |
| * Haitao Yao ([@haitaoyao](https://github.com/haitaoyao)) |
| * Dan Dillinger ([@ddillinger](https://github.com/ddillinger)) |
| * Kang Xiao ([@xiaokang](https://github.com/xiaokang)) |
| * Gabriel Grant ([@gabrielgrant](https://github.com/gabrielgrant)) |
| * Travis Wellman ([@travisfw](https://github.com/travisfw)) |
| * Kasper Madsen ([@KasperMadsen](https://github.com/KasperMadsen)) |
| * Michael Cetrulo ([@git2samus](https://github.com/git2samus)) |
| * Thomas Jack ([@tomo](https://github.com/tomo)) |
| * Nicolas Yzet ([@nicoo](https://github.com/nicoo)) |
| * Fabian Neumann ([@hellp](https://github.com/hellp)) |
| * Soren Macbeth ([@sorenmacbeth](https://github.com/sorenmacbeth)) |
| * Ashley Brown ([@ashleywbrown](https://github.com/ashleywbrown)) |
| * Guanpeng Xu ([@herberteuler](https://github.com/herberteuler)) |
| * Vinod Chandru ([@vinodc](https://github.com/vinodc)) |
| * Martin Kleppmann ([@ept](https://github.com/ept)) |
| * Evan Chan ([@velvia](https://github.com/velvia)) |
| * Sjoerd Mulder ([@sjoerdmulder](https://github.com/sjoerdmulder)) |
| * Yuta Okamoto ([@okapies](https://github.com/okapies)) |
| * Barry Hart ([@barrywhart](https://github.com/barrywhart)) |
| * Sergey Lukjanov ([@Frostman](https://github.com/Frostman)) |
| * Ross Feinstein ([@rnfein](https://github.com/rnfein)) |
| * Junichiro Takagi ([@tjun](https://github.com/tjun)) |
| * Bryan Peterson ([@Lazyshot](https://github.com/Lazyshot)) |
| * Sam Ritchie ([@sritchie](https://github.com/sritchie)) |
| * Stuart Anderson ([@emblem](https://github.com/emblem)) |
| * Lorcan Coyle ([@lorcan](https://github.com/lorcan)) |
| * Andrew Olson ([@noslowerdna](https://github.com/noslowerdna)) |
| * Gavin Li ([@lyogavin](https://github.com/lyogavin)) |
| * Tudor Scurtu ([@tscurtu](https://github.com/tscurtu)) |
| * Homer Strong ([@strongh](https://github.com/strongh)) |
| * Sean Melody ([@srmelody](https://github.com/srmelody)) |
| * Jake Donham ([@jaked](https://github.com/jaked)) |
| * Ankit Toshniwal ([@ankitoshniwal](https://github.com/ankitoshniwal)) |
| * Adam Lewis ([@supercargo](https://github.com/supercargo)) |
| * Alexander Yerenkow ([@yerenkow](https://github.com/yerenkow)) |
| * Brenden Matthews ([@brndnmtthws](https://github.com/brdnmtthws)) |
| * Bryan Baugher ([@bbaugher](https://github.com/bbaugher)) |
| * Danijel Schiavuzzi ([@dschiavu](https://github.com/dschiavu)) |
| * David James ([@xpe](https://github.com/xpe)) |
| * David Losada ([@tuxpiper](https://github.com/tuxpiper)) |
| * Francois Dang Ngoc ([@darthbear](https://github.com/darthbear)) |
| * Gangrui Li ([@davidlgr](https://github.com/davidlgr)) |
| * John Gilmore ([@jsgilmore](https://github.com/jsgilmore)) |
| * Julien Nioche ([@jnioche](https://github.com/jnioche)) |
| * Muneyuki Noguchi ([@mnogu](https://github.com/mnogu)) |
| * Niels Basjes ([@nielsbasjes](https://github.com/nielsbasjes)) |
| * Padma Priya Chitturi ([PadmaCh](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=PadmaCh)) |
| * Prabeesh K ([@prabeesh](https://github.com/prabeesh)) |
| * Sean Zhong ([@clockfly](https://github.com/clockfly)) |
| * Sriharsha Chintalapani ([@harshach](https://github.com/harshach)) |
| * Srinivas Prasad Gumdelli ([@srinivasgumdelli](https://github.com/srinivasgumdelli)) |
| * Steven Phung ([@stphung](https://github.com/stphung)) |
| * Suresh Srinivas ([@sureshms](https://github.com/sureshms)) |
| * thinker0 ([@thinker0](https://github.com/thinker0)) |
| * Troy Ding ([@troyding](https://github.com/troyding)) |
| * Aaron Zimmerman ([@aaronzimmerman](https://github.com/aaronzimmerman)) |
| * Albert Chu ([@chu11](https://github.com/chu11)) |
| * Krystian Nowak ([@krystiannowak](https://github.com/krystiannowak)) |
| * Parth-Brahmbhatt ([@Parth-Brahmbhatt](https://github.com/Parth-Brahmbhatt)) |
| * Adrian Petrescu ([@apetresc](https://github.com/apetresc)) |
| * DashengJu ([@dashengju](https://github.com/dashengju)) |
| * Li Jiahong ([@Gvain](https://github.com/Gvain)) |
| * Aaron Levin ([@aaronlevin](https://github.com/aaronlevin)) |
| * Masatake Iwasaki ([@iwasakims](https://github.com/iwasakims)) |
| * Milad Fatenejad ([@icksa](https://github.com/icksa)) |
| * Ryan Liu ([@shell0dh](https://github.com/shell0dh)) |
| * Dave Parfitt ([@metadave](https://github.com/metadave)) |
| * Jo Liss ([@joliss](https://github.com/joliss)) |
| * averykhoo ([@averykhoo](https://github.com/averykhoo)) |
| * Curtis Allen ([@curtisallen](https://github.com/curtisallen)) |
| * Raghavendra Nandagopal ([@RaghavendraNandagopal](https://github.com/RaghavendraNandagopal)) |
| * Boris Aksenov ([@miofthena](https://github.com/miofthena)) |
| * Itai Frenkel ([@itaifrenkel](https://github.com/itaifrenkel)) |
| * Naresh Kosgi ([@NareshKosgi](https://github.com/NareshKosgi)) |
| * Sean T Allen ([@SeanTAllen](https://github.com/SeanTAllen)) |
| * Gabriel Ciuloaica ([@devsprint](https://github.com/devsprint)) |
| * wurstmeister ([@wurstmeister](https://github.com/wurstmeister)) |
| * Marc Beitchman ([@mbeitchman](https://github.com/mbeitchman)) |
| * Dan Blanchard ([@dan-blanchard](https://github.com/dan-blanchard)) |
| * Mykhailo "Michael" Pershyn ([@pershyn](https://github.com/pershyn)) |
| * Dave Golombek ([@dgolombek](https://github.com/dgolombek)) |
| * Edison Xu ([@EdisonXu](https://github.com/EdisonXu)) |
| * Ariel Valentin ([@arielvalentin](http://blog.arielvalentin.com/)) |
| * Dane Hammer ([@danehammer](https://github.com/danehammer)) |
| * Christophe Carre' ([@chrisz](https://github.com/chrisz)) |
| * Anya Tchernishov ([@anyatch](https://github.com/anyatch)) |
| * Ahmet DAL ([@javrasya](https://github.com/javrasya)) |
| * Kai Sasaki ([@Lewuathe](https://github.com/Lewuathe)) |
| * Matthew Siegel ([@msiegel07](https://github.com/msiegel07)) |
| * Jun Xia ([@tedxia](https://github.com/tedxia)) |
| * caofangkun ([@caofangkun](https://github.com/caofangkun)) |
| * Mansheng Yang ([@lightyang](https://github.com/lightyang)) |
| * Rick Kilgore ([@rick-kilgore](http://github.com/rick-kilgore)) |
| * 周向涛 ([@taojoe](https://github.com/taojoe)) |
| * Gianmarco De Francisci Morales ([@gdfm](https://github.com/gdfm)) |
| * zhangjinlong ([@BuDongDong](https://github.com/BuDongDong)) |
| * Paul DelRe ([@pdelre](https://github.com/pdelre)) |
| * Zhihui Jiao ([@onlychoice](https://github.com/onlychoice)) |
| * Hari Sekhon ([@harisekhon](https://github.com/harisekhon)) |
| * iBuddha ([@iBuddha](https://github.com/iBuddha)) |
| * Dave Katten ([@dkatten](https://github.com/dkatten)) |
| * Mark Davis ([@markdav](https://github.com/markdav)) |
| * jangie ([@jangie](https://github.com/jangie)) |
| * Hailei Zhang ([@Hailei](https://github.com/Hailei)) |
| * Nikhil Singh ([@snikhil5](https://github.com/snikhil5)) |
| * Paul Poulosky ([@ppoulosk](https://github.com/ppoulosk)) |
| * Brendan W. Lyon ([@lyonbrw](https://github.com/lyonbrw)) |
| * Shyam Rajendran ([@bourneagain](https://github.com/bourneagain)) |
| * Reza Farivar ([@rfarivar](https://github.com/rfarivar)) |
| * Hugo Louro ([@hmcl](https://github.com/hmcl)) |
| * Xin Wang ([@vesense](https://github.com/vesense)) |
| * Charles Chan ([@charleswhchan](https://github.com/charleswhchan)) |
| * Chuanlei Ni ([@chuanlei](https://github.com/chuanlei)) |
| * Xingyu Su ([@errordaiwa](https://github.com/errordaiwa)) |
| * Adrian Seungjin Lee ([@sweetest](https://github.com/sweetest)) |
| * Randy Gelhausen ([@randerzander](https://github.com/randerzander)) |
| * Gabor Liptak ([@gliptak](https://github.com/glibtak)) |
| * Yvonne Ironberg ([@YvonneIronberg](https://github.com/YvonneIronberg)) |
| * Li Wang ([@wangli1426](https://github.com/wangli1426)) |
| * Rohan Agarwal ([@rohanag12](https://github.com/rohanag12)) |
| * Alex Panov ([@alexpanov](https://github.com/alexpanov)) |
| * Sanket Reddy ([@redsanket](https://github.com/redsanket)) |
| * Drew Robb ([@drewrobb](https://github.com/drewrobb)) |
| * Frantz Mazoyer ([@fmazoyer](https://github.com/fmazoyer)) |
| * Dean de Bree ([@ddebree](https://github.com/ddebree)) |
| * Renkai Ge ([@Renkai](https://github.com/Renkai)) |
| * Aaron Coburn ([@acoburn](https://github.com/acoburn)) |
| * Rick Kellogg ([@rmkellogg](https://github.com/rmkellogg)) |
| * chenyuzhao ([@danny0405](https://github.com/danny0405)) |
| * Michael Schonfeld ([@schonfeld](https://github.com/schonfeld)) |
| * Erik Weathers ([@erikdw](https://github.com/erikdw)) |
| * Bryan Shell ([@shellbj](https://github.com/shellbj)) |
| * Dmytro Dragan ([@3Dragan](https://github.com/3Dragan)) |
| * Ningyu An ([@jetan9](https://github.com/jetan9)) |
| * Pete Prokopowicz ([@prokopowicz](https://github.com/prokopowicz)) |
| * Priyank Shah ([@priyank5485](https://github.com/priyank5485)) |
| * Joshua Martell ([@jmartell7](https://github.com/jmartell7)) |
| * Matthew Tieman ([@mjtieman](https://github.com/mjtieman)) |
| * Chuck Burgess ([@ashnazg](https://github.com/ashnazg)) |
| * Tom Graves ([@tgravescs](https://github.com/tgravescs)) |
| * Dror Weiss ([@drorweiss](https://github.com/drorweiss)) |
| * Victor Wong ([@victor-wong](https://github.com/victor-wong)) |
| * David Wimsey ([@dwimsey](https://github.com/dwimsey)) |
| * Florian Hussonnois ([@fhussonnois](https://github.com/fhussonnois)) |
| * Ilya Ostrovskiy ([@iostat](https://github.com/iostat)) |
| * Satish Duggana ([@satishd](https://github.com/satishd)) |
| * Seth Ammons ([@sethgrid](https://github.com/sethgrid)) |
| * Aaron Dixon ([@atdixon](https://github.com/atdixon)) |
| * Roshan Naik ([@roshannaik](https://github.com/roshannaik)) |
| * Dan Bahir ([#dbahir](https://github.com/dbahir)) |
| * Alessandro Bellina ([#abellina](https://github.com/abellina)) |
| * Basti Liu ([@basti](https://github.com/bastiliu)) |
| * Jark Wu ([@jark](https://github.com/wuchong)) |
| * Cody Wang ([@unsleepy22](https://github.com/unsleepy22)) |
| * Karthick Duraisamy Soundararaj ([@dsKarthick](https://github.com/dsKarthick)) |
| * Olivier Mallassi ([@omallassi](https://github.com/omallassi)) |
| * Balázs Kossovics ([@kosii](https://github.com/kosii)) |
| * csivaguru ([@csivaguru](https://github.com/csivaguru)) |
| * sakanaou ([@sakanaou](https://github.com/sakanaou)) |
| * wangperry ([@wangperry](https://github.com/wangperry)) |
| * Slava Andreyev ([@slava92](https://github.com/slava92)) |
| * Pavel Grochal ([@Darkless012](https://github.com/Darkless012)) |
| * Manikumar Reddy O ([@omkreddy](https://github.com/omkreddy)) |
| * Dohyun Lee ([@leedohyun](https://github.com/leedohyun)) |
| * Arthur Maciejewicz ([@Zintinio](https://github.com/Zintinio])) |
| * Juan Paulo Gutierrez ([@juanpaulo](https://github.com/juanpaulo)) |
| |
| ## Acknowledgements |
| |
| YourKit is kindly supporting open source projects with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. Take a look at YourKit's leading software products: [YourKit Java Profiler](http://www.yourkit.com/java/profiler/index.jsp) and [YourKit .NET Profiler](http://www.yourkit.com/.net/profiler/index.jsp). |