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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, and is a lot of fun to use!

TheRationale page explains what Storm is and why it was built.This presentation is also a good introduction to the project.

Storm has a website atstorm.apache.org.

Documentation and tutorials can be found on theStorm website.

Developers and contributors should also take a look at ourDeveloper documentation.

Storm users should send messages and subscribe touser@storm.apache.org.

You can subscribe to this list by sending an email touser-subscribe@storm.apache.org. Likewise, you can cancel a subscription by sending an email touser-unsubscribe@storm.apache.org.

You can alsobrowse the archives of the storm-user mailing list.

Storm developers should send messages and subscribe todev@storm.apache.org.

You can subscribe to this list by sending an email todev-subscribe@storm.apache.org. Likewise, you can cancel a subscription by sending an email todev-unsubscribe@storm.apache.org.

You can alsobrowse the archives of the storm-dev mailing list.

Storm developers who would want to track issues should subscribe toissues@storm.apache.org.

You can subscribe to this list by sending an email toissues-subscribe@storm.apache.org. Likewise, you can cancel a subscription by sending an email toissues-unsubscribe@storm.apache.org.

You can view the archives of the mailing listhere.

In case you want to raise a bug/feature or propose an idea, please useGitHub Issues.If you do not have an account, you need to create one.

If you are using a pre-built binary distribution of Storm, then you should send questions, comments, storm-related announcements, etc. touser@storm.apache.org.

If you are building storm from source, developing new features, or otherwise hacking storm source code, thendev@storm.apache.org is more appropriate.

If you are committers and/or PMCs, or contributors looking for following up and participating development of Storm, then you would want to also subscribeissues@storm.apache.org in addition todev@storm.apache.org.

All existing messages will remain archived there, and can be accessed/searchedhere.

Licensed to the Apache Software Foundation (ASF) under oneor more contributor license agreements. See the NOTICE filedistributed with this work for additional informationregarding copyright ownership. The ASF licenses this fileto you under the Apache License, Version 2.0 (the"License"); you may not use this file except in compliancewith the License. You may obtain a copy of the License at

https://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 ANYKIND, either express or implied. See the License for thespecific language governing permissions and limitationsunder the License.

The LICENSE and NOTICE files cover the source distributions. The LICENSE-binary and NOTICE-binary files cover the binary distributions. The DEPENDENCY-LICENSES file lists the licenses of all dependencies of Storm, including those not packaged in the source or binary distributions, such as dependencies of optional connector modules.

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