This is an automated email from the ASF dual-hosted git repository.
gian pushed a commit to branch master
in repository
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commit c19f428a9e168f3c208295b648923805587bcb33
Author: Vadim Ogievetsky <vadi...@gmail.com>
AuthorDate: Tue Jun 4 18:48:47 2019 -0700
address already transitioned pages
---
community/index.html | 412 ++++++++++++++++++++++++++++++++++
community/index.md | 4 -
use-cases.html | 262 +++++++++++++++++++++
use-cases.md => use-cases_original.md | 0
4 files changed, 674 insertions(+), 4 deletions(-)
diff --git a/community/index.html b/community/index.html
new file mode 100644
index 0000000..f3d3f5d
--- /dev/null
+++ b/community/index.html
@@ -0,0 +1,412 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="UTF-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="description" content="Apache Druid">
+<meta name="keywords"
content="druid,kafka,database,analytics,streaming,real-time,real
time,apache,open source">
+<meta name="author" content="Apache Software Foundation">
+
+<title>Druid | Apache Druid (incubating) Community</title>
+
+<link rel="canonical" href="https://druid.apache.org/community/"; />
+<link rel="alternate" type="application/atom+xml" href="/feed">
+<link rel="shortcut icon" href="/img/favicon.png">
+
+<link rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.7.2/css/all.css";
integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr"
crossorigin="anonymous">
+
+<link
href='//fonts.googleapis.com/css?family=Open+Sans+Condensed:300,700,300italic|Open+Sans:300italic,400italic,600italic,400,300,600,700'
rel='stylesheet' type='text/css'>
+
+<link rel="stylesheet" href="/css/bootstrap-pure.css?v=1.0">
+<link rel="stylesheet" href="/css/main.css?v=1.0">
+<link rel="stylesheet" href="/css/header.css?v=1.0">
+<link rel="stylesheet" href="/css/footer.css?v=1.0">
+<link rel="stylesheet" href="/css/syntax.css?v=1.0">
+<link rel="stylesheet" href="/css/docs.css?v=1.0">
+
+<script async
src="https://www.googletagmanager.com/gtag/js?id=UA-131010415-1";></script>
+<script>
+ window.dataLayer = window.dataLayer || [];
+ function gtag(){dataLayer.push(arguments);}
+ gtag('js', new Date());
+ gtag('config', 'UA-131010415-1');
+</script>
+ </head>
+ <body>
+ <!-- Start page_header include -->
+<script
src="//ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
+
+<div class="top-navigator">
+ <div class="container">
+ <div class="left-cont">
+ <a class="logo" href="/"><span class="druid-logo"></span></a>
+ </div>
+ <div class="right-cont">
+ <ul class="links">
+ <li class=""><a href="http://druid.io/technology";>Technology</a></li>
+ <li class=""><a href="/use-cases">Use Cases</a></li>
+ <li class=""><a href="http://druid.io/druid-powered";>Powered
By</a></li>
+ <li class=""><a
href="http://druid.io/docs/latest/design/";>Docs</a></li>
+ <li class=" active"><a href="/community/">Community</a></li>
+ <li class=" button-link"><a
href="http://druid.io/downloads.html";>Download</a></li>
+ </ul>
+ </div>
+ </div>
+ <div class="action-button menu-icon">
+ <span class="fa fa-bars"></span> MENU
+ </div>
+ <div class="action-button menu-icon-close">
+ <span class="fa fa-times"></span> MENU
+ </div>
+</div>
+
+<script type="text/javascript">
+ var $menu = $('.right-cont');
+ var $menuIcon = $('.menu-icon');
+ var $menuIconClose = $('.menu-icon-close');
+
+ function showMenu() {
+ $menu.fadeIn(100);
+ $menuIcon.fadeOut(100);
+ $menuIconClose.fadeIn(100);
+ }
+
+ $menuIcon.click(showMenu);
+
+ function hideMenu() {
+ $menu.fadeOut(100);
+ $menuIconClose.fadeOut(100);
+ $menuIcon.fadeIn(100);
+ }
+
+ $menuIconClose.click(hideMenu);
+
+ $(window).resize(function() {
+ if ($(window).width() >= 840) {
+ $menu.fadeIn(100);
+ $menuIcon.fadeOut(100);
+ $menuIconClose.fadeOut(100);
+ }
+ else {
+ $menu.fadeOut(100);
+ $menuIcon.fadeIn(100);
+ $menuIconClose.fadeOut(100);
+ }
+ });
+</script>
+
+<!-- Stop page_header include -->
+
+
+ <div class="druid-header">
+ <div class="container">
+ <h1>Apache Druid (incubating) Community</h1>
+ <h4></h4>
+ </div>
+</div>
+
+<div class="container">
+ <div class="row">
+ <div class="col-md-10 col-md-offset-1">
+ <h2 id="community">Community</h2>
+
+<p>Most discussion about Druid happens over email and GitHub.</p>
+
+<p>The Druid community is in the process of migrating to Apache by way of the
Apache Incubator. As we proceed
+along this path, our site will move from http://druid.io/ to
https://druid.apache.org/, and our mailing lists
+and Git repositories will be migrated as well.</p>
+
+<ul>
+<li><strong>User mailing list</strong> <a
href="https://groups.google.com/forum/#!forum/druid-user";>druid-u...@googlegroups.com</a>
for general discussion</li>
+<li><strong>Development mailing list</strong> <a
href="https://lists.apache.org/list.html?d...@druid.apache.org";>d...@druid.apache.org</a>
for discussion about project development</li>
+<li><strong>GitHub</strong> <a
href="https://github.com/apache/druid";>druid-io/druid</a> issues and pull
requests (watch to subscribe)</li>
+<li><strong>Meetups</strong> <a
href="https://www.meetup.com/topics/apache-druid/";>Druid meetups</a> for
different meetup groups around the world.</li>
+<li><strong>IRC</strong> <code>#druid-dev</code> on irc.freenode.net</li>
+</ul>
+
+<h2 id="getting-help">Getting help</h2>
+
+<p>The best place to get a wide variety of help about Druid is on the Druid
user
+group <a
href="https://groups.google.com/forum/#!forum/druid-user";>druid-u...@googlegroups.com</a>.
You can also report issues and bugs on
+the <a href="https://github.com/apache/druid";>Github development page</a>.</p>
+
+<p>Third party companies also provide commercial support and services for
Druid, including:</p>
+
+<ul>
+<li><a href="https://imply.io/";>Imply</a></li>
+</ul>
+
+<h2 id="contributing">Contributing</h2>
+
+<p>Druid is a community-led project and we are delighted to receive
contributions
+of anything from minor fixes to big new features.</p>
+
+<h3 id="what-to-work-on">What to work on</h3>
+
+<p>If you have an itch to scratch, then by all means do that! Fixing bugs you
run
+into, or adding features you need, are both immensely helpful.</p>
+
+<p>If you're looking for some starter projects, we maintain a <a
href="https://github.com/apache/incubator-druid/issues?q=is%3Aopen+is%3Aissue+label%3A%22Difficulty+-+Easy%22";>list
of issues</a> suitable
+for new developers.</p>
+
+<p>There are plenty of ways to help outside writing Druid code. <em>Code
review of pull requests</em>
+(even if you are not a committer), feature suggestions, reporting bugs, <a
href="http://druid.io/docs/0.14.2-incubating/";>documentation</a>
+and usability feedback all matter immensely. Another big way to help is
+through <a
href="http://druid.io/docs/latest/development/libraries.html";>client
libraries</a>, which are
+avaialble in a variety of languages. If you develop a new one, we'll be
happy
+to include it in the list.</p>
+
+<h3 id="getting-your-changes-accepted">Getting your changes accepted</h3>
+
+<p>Patches to Druid are done through GitHub pull requests.</p>
+
+<p>Pull requests require one approval (+1) from an established committer on
code and text (for documentation) levels. The
+exception is major architectural changes or API changes, and/or changes to</p>
+
+<ul>
+<li>HTTP requests and responses (e. g. a new HTTP endpoint)</li>
+<li><a href="http://druid.io/docs/latest/development/modules.html";>Interfaces
for extensions</a></li>
+<li>Server configuration (e. g. altering the behavior of a config
property)</li>
+<li>Emitted metrics</li>
+<li>Other major changes, judged by the discretion of Druid committers</li>
+</ul>
+
+<p>warrant additional design and compatibility review. Such pull requests
require design approvals from three different
+committers (one of them could also be the author of the pull request). For
those, it can help to discuss things
+on the Druid development list <a
href="https://lists.apache.org/list.html?d...@druid.apache.org";>d...@druid.apache.org</a>
or a github issue beforehand.</p>
+
+<p>In general please follow the <a
href="https://github.com/apache/incubator-druid/blob/master/CONTRIBUTING.md";>contributing
guidelines</a>
+when sending in pull requests. This will help review proceed as quickly as
+possible.</p>
+
+<p>For code contributions, we require that you agree to a Contributor License
+Agreement (CLA) before we can accept your code. You can find our CLA on and
+sign it directly on our <a href="http://druid.io/community/cla.html";>CLA
page</a></p>
+
+<h3 id="committers">Committers</h3>
+
+<p>Committers are collectively responsible for Druid's technical
management. This involves
+setting the direction of the project, contributing code, and reviewing code
contributed
+by others.</p>
+
+<p>You don't need to be a committer to contribute- pull requests are
welcome from anyone.</p>
+
+<table><thead>
+<tr>
+<th>Name</th>
+<th>Organization</th>
+</tr>
+</thead><tbody>
+<tr>
+<td><a href="https://github.com/asdf2014";>Benedict Jin</a></td>
+<td><a href="https://www.alibaba.com/";>Alibaba</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/drcrallen";>Charles Allen</a></td>
+<td><a href="https://www.snap.com/en-US/";>Snap</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/clintropolis";>Clint Wylie</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/dclim";>David Lim</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/gaodayue";>Daoyue Gao</a></td>
+<td><a href="http://www.meituan.com/";>Meituan</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/Dylan1312";>Dylan Wylie</a></td>
+<td><a href="https://www.spotx.tv/";>SpotX</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/egor-ryashin";>Egor Rashin</a></td>
+<td><a href="https://www.snap.com/en-US/";>Snap</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/cheddar";>Eric Tschetter</a></td>
+<td><a href="https://www.splunk.com/";>Splunk</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/fjy";>Fangjin Yang</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/gianm";>Gian Merlino</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/himanshug";>Himanshu Gupta</a></td>
+<td><a href="https://www.splunk.com/";>Splunk</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/jihoonson";>Jihoon Son</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/jon-wei";>Jonathan Wei</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/julianhyde";>Julian Hyde</a></td>
+<td><a href="https://looker.com/";>Looker</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/junrao";>Jun Rao</a></td>
+<td><a href="https://www.confluent.io/";>Confluent</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/kaijianding";>Kaijian Ding</a></td>
+<td><a href="https://www.alibaba.com/";>Alibaba</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/kurtyoung";>Kurt Young</a></td>
+<td><a href="https://www.alibaba.com/";>Alibaba</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/binlijin";>Lijin Bin</a></td>
+<td><a href="https://www.alibaba.com/";>Alibaba</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/mistercrunch";>Maxime Beauchemin</a></td>
+<td><a href="http://lyft.com/";>Lyft</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/QiuMM";>Mingming Qiu</a></td>
+<td><a href="https://bytedance.com/";>Bytedance</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/b-slim";>Mohamed Slim Bouguerra</a></td>
+<td><a href="https://hortonworks.com/";>Hortonworks</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/navis";>Navis Ryu</a></td>
+<td><a href="https://www.sktelecom.com/index.html";>SK Telecom</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/niketh";>Niketh Sabbineni</a></td>
+<td><a href="https://www.oath.com/";>Oath</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/nishantmonu51";>Nishant Bangarwa</a></td>
+<td><a href="https://hortonworks.com/";>Hortonworks</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/pjain1";>Parag Jain</a></td>
+<td><a href="http://lyft.com/";>Lyft</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/ptgoetz";>P. Taylor Goetz</a></td>
+<td><a href="https://www.epam.com/";>EPAM</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/leventov";>Roman Leventov</a></td>
+<td><a href="https://www.snap.com/en-US/";>Snap</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/surekhasaharan";>Surekha Saharan</a></td>
+<td><a href="https://imply.io/";>Imply</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/xvrl";>Xavier Léauté</a></td>
+<td><a href="https://www.confluent.io/";>Confluent</a></td>
+</tr>
+<tr>
+<td><a href="https://github.com/zhangxinyu1";>Xinyu Zhang</a></td>
+<td><a href="https://www.360.cn/";>Qihoo 360</a></td>
+</tr>
+</tbody></table>
+
+<h3 id="becoming-a-committer">Becoming a committer</h3>
+
+<p>If you'd like to become a committer, that's great! Please contact
one of the
+existing committers for a walk through the process. Basically, what we're
+looking for is an interest in ongoing contributions to Druid.</p>
+
+<h3 id="general-committer-guidelines">General committer guidelines</h3>
+
+<p>If you are an official Druid committer then congratulations! You are part
of a fantastic group of people. Here are some guidelines to follow to help
ensure the Druid project continues to grow and improve:</p>
+
+<ol>
+<li>You can merge your own pull request if it fits the rest of the criteria. A
common thing to see is "+1 after travis" from other committers.</li>
+<li>A pull request should have at least one +1 from a committer who is not the
author, on the "code/textual" level of review.</li>
+<li>Pull requests which have just one +1 from a committer couldn't be
merged earlier than after 3 working days since PR submission.</li>
+<li>A pull request with just one +1 could be merged only by (or in
coordination with) the committer who provided the review. Because the reviewer
may think that the PR is complex or risky enough that needs another pair of
eyes to look at it. If this is the case, the first reviewer should indicate
this in the PR approval message.</li>
+<li>If a pull request has two or more +1's from committers who are not the
author, it could be merged immediately and by any committer. But still, enough
time since the PR submission should pass to give folks a reasonable chance to
indicate a desire to comment on the pull request. AKA: don't merge a pull
request that was submitted Friday evening until at least 1~2 regular work days
have passed. Use good judgement here.</li>
+<li>Major architectural and backwards incompatible changes, or changes which
have long-term maintainance consequences (see examples in <a
href="#getting-your-changes-accepted">the "Getting your changes
accepted" section above</a>), should have at least three +1's from
committers, on the "design" level of review. One approval could be
from the author of the PR. The first committer who indicates that a PR needs
design review should add the <code>Design Review</code> [...]
+<li>Travis-CI should pass or have some <strong>very</strong> good reason why
it won't pass for a pull request.</li>
+<li>You reasonably believe that all comments have been addressed.</li>
+<li>You are expected to be the champion for your own pull requests.</li>
+<li>Being a champion on a pull request can be a significant undertaking
depending on the size of the code change and what parts of the code it touches.
It may require communicating with other developers, reconciling differences,
organizing community feedback, and/or following up with people who have
commented in a pull request to ensure comments have been addressed.</li>
+<li>Sometimes code is presented as a work-in-progress or as a point of
discussion. Use the <code>WIP</code> or <code>Discuss</code> tags on a pull
request in such a case.</li>
+<li>If a pull request you are championing is taking longer than expected to
merge, be sure to raise the issue in the developer sync.</li>
+<li>Limit the number of pull requests you are championing at the same
time.</li>
+<li>Prioritize code reviews to look at pull requests that are blockers for the
next release (see the Milestone marker on the pull request)</li>
+<li>Help serve as champion for pull requests that originate from new
committers.</li>
+<li>If you feel a pull request is required for the next release, mark it as
such in the Milestone of the pull request.</li>
+<li>Do not comment on a pull request unless you are willing to follow up on
the edits.</li>
+<li>Give priority to getting older pull requests merged. (Either as their
champion or as an active commenter)</li>
+<li>And most importantly.. the PMC desires to ensure a positive and effective
developer experience! If you find that things are not functioning to your
expectations, pleaes raise the issue.</li>
+</ol>
+
+<p>Remember, we all want to see this project thrive!</p>
+
+<h2 id="governance">Governance</h2>
+
+<p>The PMC (Project Management Committee) is responsible for the administrative
+aspects of the Druid project. The responsibilities of the PMC include:</p>
+
+<ul>
+<li>Approving releases</li>
+<li>Nominating new committers</li>
+<li>Maintaining the project's shared resources, including the github
account,
+mailing lists, websites, social media channels, etc.</li>
+<li>Maintaining guidelines for the project</li>
+</ul>
+
+ </div>
+ </div>
+</div>
+
+
+ <!-- Start page_footer include -->
+<footer class="druid-footer">
+<div class="container">
+ <div class="text-center">
+ <p>
+ <a href="http://druid.io/technology";>Technology</a> · 
+ <a href="/use-cases">Use Cases</a> · 
+ <a href="http://druid.io/druid-powered";>Powered by Druid</a> · 
+ <a href="http://druid.io/docs/latest";>Docs</a> · 
+ <a href="/community/">Community</a> · 
+ <a href="http://druid.io/downloads.html";>Download</a> · 
+ <a href="http://druid.io/faq";>FAQ</a>
+ </p>
+ </div>
+ <div class="text-center">
+ <a title="Join the user group"
href="https://groups.google.com/forum/#!forum/druid-user"; target="_blank"><span
class="fa fa-comments"></span></a> · 
+ <a title="Follow Druid" href="https://twitter.com/druidio";
target="_blank"><span class="fab fa-twitter"></span></a> · 
+ <a title="Download via Apache"
href="https://www.apache.org/dyn/closer.cgi?path=/incubator/druid/0.14.2-incubating/apache-druid-0.14.2-incubating-bin.tar.gz";
target="_blank"><span class="fas fa-feather"></span></a> · 
+ <a title="GitHub" href="https://github.com/apache/incubator-druid";
target="_blank"><span class="fab fa-github"></span></a>
+ </div>
+ <div class="text-center license">
+ Except where otherwise noted, licensed under <a rel="license"
href="http://creativecommons.org/licenses/by-sa/4.0/";>CC BY-SA 4.0</a>
+ </div>
+</div>
+</footer>
+
+<script>
+ function trackDownload(type, url) {
+ ga('send', 'event', 'download', type, url);
+ }
+</script>
+<script src="//code.jquery.com/jquery.min.js"></script>
+<script
src="//maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
+<script src="/assets/js/druid.js"></script>
+<!-- stop page_footer include -->
+
+
+ </body>
+</html>
diff --git a/community/index.md b/community/index.md
deleted file mode 100644
index 059267d..0000000
--- a/community/index.md
+++ /dev/null
@@ -1,4 +0,0 @@
----
-layout: redirect_page
-redirect_target: 'https://druid.apache.org/community/'
----
diff --git a/use-cases.html b/use-cases.html
new file mode 100644
index 0000000..7a7e940
--- /dev/null
+++ b/use-cases.html
@@ -0,0 +1,262 @@
+<!DOCTYPE html>
+<html lang="en">
+ <head>
+ <meta charset="UTF-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="description" content="Apache Druid">
+<meta name="keywords"
content="druid,kafka,database,analytics,streaming,real-time,real
time,apache,open source">
+<meta name="author" content="Apache Software Foundation">
+
+<title>Druid | Use Cases</title>
+
+<link rel="canonical" href="https://druid.apache.org/use-cases"; />
+<link rel="alternate" type="application/atom+xml" href="/feed">
+<link rel="shortcut icon" href="/img/favicon.png">
+
+<link rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.7.2/css/all.css";
integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr"
crossorigin="anonymous">
+
+<link
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+ <li class=""><a href="http://druid.io/technology";>Technology</a></li>
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By</a></li>
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+ <h1>Use Cases</h1>
+ <h4></h4>
+ </div>
+</div>
+
+<div class="container">
+ <div class="row">
+ <div class="col-md-10 col-md-offset-1">
+ <h2 id="streaming-and-operational-data">Streaming and operational
data</h2>
+
+<p>Apache Druid (incubating) generally works well with any event-oriented,
clickstream, timeseries, or telemetry data, especially streaming datasets from
<a href="https://kafka.apache.org/";>Apache Kafka</a>.
+Druid provides <a
href="http://druid.io/docs/latest/development/extensions-core/kafka-ingestion";>exactly
once consumption semantics</a> from Apache Kafka and is commonly used as a
sink for event-oriented Kafka topics.</p>
+
+<p>Druid also works well for batch data sets.
+Organizations have deployed Druid to accelerate queries and power applications
where the input data is one or more static files.
+Druid is a great fit if you are developing a user-facing application and you
want your users to be able to self service their own questions.</p>
+
+<p>Some common high level use cases of Druid include:</p>
+
+<div class="features">
+ <div class="feature">
+ <span class="fa fa-rocket fa"></span>
+ <h5>Analyze performance</h5>
+ <p>
+ Create interactive dashboards with full drill down capabilities. Analyze
performance of digital products, track mobile app usage, or monitor site
reliability.
+ </p>
+ </div>
+ <div class="feature">
+ <span class="fa fa-exclamation-triangle fa"></span>
+ <h5>Diagnose problems</h5>
+ <p>
+ Find the root cause of issues. Troubleshoot netflow bottlenecks, analyze
security threats, or diagnose software crashes.
+ </p>
+ </div>
+ <div class="feature">
+ <span class="fa fa-users fa"></span>
+ <h5>Find commonalities</h5>
+ <p>
+ Find common attributes among events. Identify shared components in
defective products, or determine patterns in top performing products.
+ </p>
+ </div>
+ <div class="feature">
+ <span class="fa fa-money-bill-wave-alt fa"></span>
+ <h5>Increase efficiency</h5>
+ <p>
+ Improve product engagement. Optimize ad-spend in digital marketing
campaigns or increase user engagement in online products.
+ </p>
+ </div>
+</div>
+
+<h2 id="user-activity-and-behavior">User activity and behavior</h2>
+
+<p>Druid is often used for clickstreams, viewstreams, and activity streams.
+Specific use cases include measuring user engagement, tracking A/B test data
for product releases, and understanding usage patterns.</p>
+
+<p>Druid can compute user metrics such as <a
href="http://druid.io/docs/latest/querying/aggregations";>distinct counts</a>
both exactly and approximately.
+This mean measures such as daily active users can be computed in under a
second approximately (with 98% avg. accuracy) to view general trends, or
computed exactly to present to key stakeholders.
+Furthermore, Druid can be used for <a
href="http://druid.io/docs/latest/development/extensions-core/datasketches-aggregators";>funnel
analysis</a>, and to measure how many users took one action, but did not take
another action.
+Such analysis is useful is tracking user signups for a product.</p>
+
+<p>Druid’s search and filter capabilities enable rapid, easy drill-downs of
users along any set of attributes.
+Measure and compare user activity by age, gender, location, and much more.</p>
+
+<h2 id="network-flows">Network flows</h2>
+
+<p>Druid is commonly used to collect and analyze network flows.
+Druid is used to arbitrarily slice and dice flow data along any set of
attributes.</p>
+
+<p>Druid helps with network flow analysis by being able to ingest large
amounts of flow records, and by being able to group or rank across dozens of
attributes at query time at interactive speeds.
+These attributes often include core attributes like IP and port, as well as
attributes added through enhancement such as geolocation, service, application,
facility, and ASN.
+Druid's ability to handle flexible schemas means that you can add any
attributes you want.</p>
+
+<h2 id="digital-marketing">Digital marketing</h2>
+
+<p>Druid is commonly used to store and query online advertising data.
+This data typically comes from ad servers and is critical to measure and
understand advertising campaign performance, click through rates, conversion
rates (attrition rates), and much more.</p>
+
+<p>Druid was initially designed to power a user-facing analytics application
for digital advertising data.
+Druid has seen substantial production use for this type of data and the
largest users in the world have petabytes of data stored on thousands of
servers.</p>
+
+<p>Druid can be used to compute impressions, clicks, eCPM, and key conversion
metrics, filtered on publisher, campaign, user information, and dozens of other
dimensions supporting full slice and dice capability.</p>
+
+<h2 id="application-performance-management">Application performance
management</h2>
+
+<p>Druid is often used to track the operational data generated by applications.
+Similar to the user activity use case, this data can be about how users are
interacting with an application or it can be the metrics emitted by the
application itself.
+Druid can be used to drill into how different components of an application are
performing, identify bottlenecks, and troubleshoot issues.</p>
+
+<p>Unlike many traditional solutions, there are few limits to the volume,
complexity, and throughput of the data.
+Rapidly analyze application events with thousands of attributes, and compute
complex metrics on load, performance, and usage.
+For example, rank API endpoints based on 95th percentile query latency, and
slice and dice how these metrics change based on any ad-hoc set of attributes
such as time of day, user demographic, or datacenter location.</p>
+
+<h2 id="iot-and-device-metrics">IoT and device metrics</h2>
+
+<p>Druid can be used as a time series solution for server and device metrics.
+Ingest machine generated data in real-time, and perform rapid ad-hoc analytics
to measure performance, optimize hardware resources, or identify issues.</p>
+
+<p>Unlike many traditional timeseries databases, Druid is an analytics engine
at heart.
+Druid combines ideas of timeseries databases, column-oriented analytic
databases, and search systems.
+Druid supports time-based partitioning, column-oriented storage, and search
indexes in a single system.
+This means time-based queries, numerical aggregations, and search and filter
queries are all extremely fast.</p>
+
+<p>You can include millions of unique dimension values with your metrics, and
arbitrarily group and filter on any combination of dimensions (dimensions in
Druid are similar to tags in TSDBs).
+You can group and rank on tags, and compute a variety of complex metrics.
+Furthermore, you search and filter on tag values orders of magnitude faster
than in traditional timeseries databases.</p>
+
+<h2 id="olap-and-business-intelligence">OLAP and business intelligence</h2>
+
+<p>Druid is commonly used for BI use cases.
+Organizations have deployed Druid to accelerate queries and power applications.
+Unlike SQL-on-Hadoop engines such as Presto or Hive, Druid is designed for
high concurrency and sub-second queries, powering interactive data exploration
through a UI.
+In general this makes Druid a better fit for truly interactive visual
analytics.</p>
+
+<p>Druid is a great fit if you need a user-facing application and you want
your users to be able to run their own self service drill-down queries.
+You can either develop your own application using Druid's API or use one
of the <a href="http://druid.io/libraries";>many off the shelf applications</a>
that work with Druid.</p>
+
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diff --git a/use-cases.md b/use-cases_original.md
similarity index 100%
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rename to use-cases_original.md
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