community.md

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Community & Project Info

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How do I get help from Apache Flink?

There are many ways to get help from the Apache Flink community. The mailing lists are the primary place where all Flink committers are present. For user support and questions use the user mailing list. Some committers are also monitoring Stack Overflow. Please remember to tag your questions with the apache-flink tag. Bugs and feature requests can either be discussed on the dev mailing list or on [Jira]({{ site.jira }}). Those interested in contributing to Flink should check out the contribution guide.

Mailing Lists

Name	Subscribe	Digest	Unsubscribe	Post	Archive
news@flink.apache.org News and announcements from the Flink community	Subscribe	Subscribe	Unsubscribe	Read only list	Archives
community@flink.apache.org Broader community discussions related to meetups, conferences, blog posts and job offers	Subscribe	Subscribe	Unsubscribe	Post	Archives
user@flink.apache.org User support and questions mailing list	Subscribe	Subscribe	Unsubscribe	Post	Archives Nabble Archive
user-zh@flink.apache.org Chinese user support and questions mailing list	Subscribe	Subscribe	Unsubscribe	Post	Archives Nabble Archive
dev@flink.apache.org Development related discussions	Subscribe	Subscribe	Unsubscribe	Post	Archives Nabble Archive
builds@flink.apache.org Build notifications of Flink main repository	Subscribe	Subscribe	Unsubscribe	Read only list	Archives
issues@flink.apache.org Mirror of all Jira activity	Subscribe	Subscribe	Unsubscribe	Read only list	Archives
commits@flink.apache.org All commits to our repositories	Subscribe	Subscribe	Unsubscribe	Read only list	Archives

Please make sure you are subscribed to the mailing list you are posting to! If you are not subscribed to the mailing list, your message will either be rejected (dev@ list) or you won't receive the response (user@ list).

How to subscribe to a mailing list

Before you can post a message to a mailing list, you need to subscribe to the list first.

1. Send an email without any contents or subject to listname-subscribe@flink.apache.org. (replace listname with dev, user, user-zh, ..)
2. Wait till you receive an email with the subject "confirm subscribe to listname@flink.apache.org". Reply to that email, without editing the subject or including any contents
3. Wait till you receive an email with the subject "WELCOME to listname@flink.apache.org".

If you send us an email with a code snippet, make sure that:

1. you do not link to files in external services as such files can change, get deleted or the link might break and thus make an archived email thread useless
2. you paste text instead of screenshots of text
3. you keep formatting when pasting code in order to keep the code readable
4. there are enough import statements to avoid ambiguities

Stack Overflow

Committers are watching Stack Overflow for the apache-flink tag.

Make sure to tag your questions there accordingly to get answers from the Flink community.

Issue Tracker

We use Jira to track all code related issues: [{{ site.jira }}]({{ site.jira }}).

All issue activity is also mirrored to the issues mailing list.

Reporting Security Issues

If you wish to report a security vulnerability, please contact security@apache.org. Apache Flink follows the typical Apache vulnerability handling process for reporting vulnerabilities. Note that vulnerabilities should not be publicly disclosed until the project has responded.

Meetups

There are plenty of meetups on meetup.com featuring Flink.

Source Code

Flink core repository

• ASF repository: https://gitbox.apache.org/repos/asf/flink.git
• GitHub mirror: https://github.com/apache/flink.git

Flink Stateful Functions repository

• ASF repository: https://gitbox.apache.org/repos/asf/flink-statefun.git
• GitHub mirror: https://github.com/apache/flink-statefun

Flink-shaded repositories (shaded dependency libraries)

• ASF repository: https://gitbox.apache.org/repos/asf/flink-shaded.git
• GitHub mirror: https://github.com/apache/flink-shaded.git

Flink Website repositories

• ASF repository: https://gitbox.apache.org/repos/asf/flink-web.git
• GitHub mirror: https://github.com/apache/flink-web.git

Bahir Flink repositories (additional connectors)

• ASF repository: https://git-wip-us.apache.org/repos/asf/bahir-flink.git
• GitHub mirror: https://github.com/apache/bahir-flink.git

Training

Ververica currently maintains free Apache Flink training. Their training website has slides and exercises with solutions. The slides are also available on SlideShare.

Project Wiki

The Apache Flink project wiki contains a range of relevant resources for Flink users. However, some content on the wiki might be out-of-date. When in doubt, please refer to the Flink documentation.

Flink Forward

Flink Forward is a conference happening yearly in different locations around the world. Up to date information about the conference is available on Flink-Forward.org.

People

	Name	Role	Apache ID
	David Anderson	Committer	danderson
	Márton Balassi	PMC, Committer	mbalassi
	Paris Carbone	Committer	senorcarbone
	Ufuk Celebi	PMC, Committer	uce
	Shuyi Chen	Committer	shuyichen
	Zili Chen	Committer	tison
	Hequn Cheng	PMC, Committer	hequn
	Danny Cranmer	Committer	dannycranmer
	Xingcan Cui	Committer	xccui
	Stephan Ewen	PMC, Committer, VP	sewen
	Gyula Fóra	PMC, Committer	gyfora
	Dian Fu	PMC, Committer	dianfu
	Alan Gates	PMC, Committer	gates
	Greg Hogan	PMC, Committer	greg
	Xingbo Huang	Committer	hxb
	Fabian Hueske	PMC, Committer	fhueske
	Vasia Kalavri	PMC, Committer	vasia
	Kostas Kloudas	PMC, Committer	kkloudas
	Konstantin Knauf	Committer	knaufk
	Aljoscha Krettek	PMC, Committer	aljoscha
	Nico Kruber	Committer	nkruber
	Jingsong Lee	Committer	lzljs3620320
	Bowen Li	Committer	bli
	ChengXiang Li	Committer	chengxiang
	Andra Lungu	Committer	andra
	Robert Metzger	PMC, Committer	rmetzger
	Maximilian Michels	PMC, Committer	mxm
	Chiwan Park	Committer	chiwanpark
	Stefan Richter	Committer	srichter
	Till Rohrmann	PMC, Committer	trohrmann
	Rong Rong	Committer	rongr
	Henry Saputra	PMC, Committer	hsaputra
	Matthias J. Sax	Committer	mjsax
	Sebastian Schelter	PMC, Committer	ssc
	Chesnay Schepler	PMC, Committer	chesnay
	Xiaogang Shi	Committer	shixg
	Xintong Song	Committer	xtsong
	Jincheng Sun	PMC, Committer	jincheng
	Tzu-Li (Gordon) Tai	PMC, Committer	tzulitai
	Kostas Tzoumas	PMC, Committer	ktzoumas
	Theodore Vasiloudis	Committer	tvas
	Timo Walther	PMC, Committer	twalthr
	Shaoxuan Wang	PMC, Committer	shaoxuan
	Zhijiang Wang	PMC, Committer	zhijiang
	Daniel Warneke	PMC, Committer	warneke
	Jark Wu	PMC, Committer	jark
	Dawid Wysakowicz	PMC, Committer	dwysakowicz
	Gary Yao	Committer	gary
	Kurt Young	PMC, Committer	kurt
	Andrey Zagrebin	Committer	azagrebin
	Yu Li	PMC, Committer	liyu
	Seth Wiesman	Committer	sjwiesman
	Congxian Qiu	Committer	klion26
	Godfrey He	Committer	godfrey
	Yun Tang	Committer	tangyun
	Wei Zhong	Committer	weizhong
	Zhu Zhu	PMC, Committer	zhuzh

You can reach committers directly at <apache-id>@apache.org. A list of all contributors can be found [here]({{ site.FLINK_CONTRIBUTORS_URL }}).

Former mentors

The following people were very kind to mentor the project while in incubation.

	Name	Role	Apache ID
	Ashutosh Chauhan	Former PPMC, Mentor	hashutosh
	Ted Dunning	Former PPMC, Mentor	tdunning
	Alan Gates	Former PPMC, Mentor	gates
	Owen O'Malley	Former PPMC, Mentor	omalley
	Sean Owen	Former PPMC, Mentor	srowen
	Henry Saputra	Former PPMC, Mentor	hsaputra

Materials / Apache Flink Logos

The [materials page]({{ site.baseurl }}/material.html) offers assets such as the Apache Flink logo in different image formats, or the Flink color scheme.