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This release adds many new features and improves the interoperability, stability, and performance of the system. The major theme of the release is the completely new Java API that makes it easy to write powerful distributed programs.</p> + +<p>The release can be downloaded from the <a href="http://stratosphere.eu/downloads/";>Stratosphere website</a> and from <a href="https://github.com/stratosphere/stratosphere/releases/tag/release-0.5";>GitHub</a>. All components are available as Apache Maven dependencies, making it simple to include Stratosphere in other projects. The website provides <a href="http://stratosphere.eu/docs/0.5/";>extensive documentation</a> of the system and the new features.</p> + +<h2 id="shortlist-of-new-features">Shortlist of new Features</h2> + +<p>Below is a short list of the most important additions to the Stratosphere system.</p> + +<h4 id="new-java-api">New Java API</h4> + +<p>This release introduces a completely new <strong>data set-centric Java API</strong>. This programming model significantly eases the development of Stratosphere programs, supports flexible use of regular Java classes as data types, and adds many new built-in operators to simplify the writing of powerful programs. The result are programs that need less code, are more readable, interoperate better with existing code, and execute faster.</p> + +<p>Take a look at the <a href="http://stratosphere.eu/docs/0.5/programming_guides/examples_java.html";>examples</a> to get a feel for the API.</p> + +<h4 id="general-api-improvements">General API Improvements</h4> + +<p><strong>Broadcast Variables:</strong> Publish a data set to all instances of another operator. This is handy if the your operator depends on the result of a computation, e.g., filter all values smaller than the average.</p> + +<p><strong>Distributed Cache:</strong> Make (local and HDFS) files locally available on each machine processing a task.</p> + +<p><strong>Iteration Termination Improvements</strong> Iterative algorithms can now terminate based on intermediate data sets, not only through aggregated statistics.</p> + +<p><strong>Collection data sources and sinks:</strong> Speed-up the development and testing of Stratosphere programs by reading data from regular Java collections and inserting back into them.</p> + +<p><strong>JDBC data sources and sinks:</strong> Read data from and write data to relational databases using a JDBC driver.</p> + +<p><strong>Hadoop input format and output format support:</strong> Read and write data with any Hadoop input or output format.</p> + +<p><strong>Support for Avro encoded data:</strong> Read data that has been materialized using Avro.</p> + +<p><strong>Deflate Files:</strong> Stratosphere now transparently reads <code>.deflate</code> compressed files.</p> + +<h4 id="runtime-and-optimizer-improvements">Runtime and Optimizer Improvements</h4> + +<p><strong>DAG Runtime Streaming:</strong> Detection and resolution of streaming data flow deadlocks in the data flow optimizer.</p> + +<p><strong>Intermediate results across iteration boundaries:</strong> Intermediate results computed outside iterative parts can be used inside iterative parts of the program.</p> + +<p><strong>Stability fixes:</strong> Various stability fixes in both optimizer and runtime.</p> + +<h4 id="setup-&-tooling">Setup & Tooling</h4> + +<p><strong>Improved YARN support:</strong> Many improvements based on user-feedback: Packaging, Permissions, Error handling.</p> + +<p><strong>Java 8 compatibility</strong></p> + +<h2 id="contributors">Contributors</h2> + +<p>In total, 26 people have contributed to Stratosphere since the last release. Thank you for making this project possible!</p> + +<ul> +<li>Alexander Alexandrov</li> +<li>Jesus Camacho</li> +<li>Ufuk Celebi</li> +<li>Mikhail Erofeev</li> +<li>Stephan Ewen</li> +<li>Alexandr Ferodov</li> +<li>Filip Haase</li> +<li>Jonathan Hasenberg</li> +<li>Markus Holzemer</li> +<li>Fabian Hueske</li> +<li>Vasia Kalavri</li> +<li>Aljoscha Krettek</li> +<li>Rajika Kumarasiri</li> +<li>Sebastian Kunert</li> +<li>Aaron Lam</li> +<li>Robert Metzger</li> +<li>Faisal Moeen</li> +<li>Martin Neumann</li> +<li>Mingliang Qi</li> +<li>Till Rohrmann</li> +<li>Chesnay Schepler</li> +<li>Vyachislav Soludev</li> +<li>Tuan Trieu</li> +<li>Artem Tsikiridis</li> +<li>Timo Walther</li> +<li>Robert Waury</li> +</ul> + +<h2 id="stratosphere-is-going-apache">Stratosphere is going Apache</h2> + +<p>The Stratosphere project has been accepted to the Apache Incubator and will continue its work under the umbrella of the Apache Software Foundation. Due to a name conflict, we are switching the name of the project. We will make future releases of Stratosphere through the Apache foundation under a new name.</p> + + </div> + </article> + </div> + <div class="col-md-2"></div> + </div> + <div class="row" style="padding-top:30px"> + <div class="col-md-2"></div> + <div class="col-md-8"> + <div id="disqus_thread"></div> + <script type="text/javascript"> + /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */ + var disqus_shortname = 'stratosphere-eu'; // required: replace example with your forum shortname + + /* * * DON'T EDIT BELOW THIS LINE * * */ + (function() { + var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true; + dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js'; + (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq); + })(); + </script> + <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript";>comments powered by Disqus.</a></noscript> + <a href="http://disqus.com"; class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a> + </div> + <div class="col-md-2"></div> + </div> +</div> + + </div> + <!--<section id="af-upfooter" class="af-section"> + <div class="container"> + <p>Apache Flink is an effort undergoing incubation at The Apache + Software Foundation (ASF), sponsored by the Apache Incubator PMC. + Incubation is required of all newly accepted projects until a further + review indicates that the infrastructure, communications, and + decision making process have stabilized in a manner consistent with + other successful ASF projects. 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This is the +first release of the system inside the Apache Incubator and under the +name Flink. Releases up to 0.5 were under the name Stratosphere, the +academic and open source project that Flink originates from.</p> + +<h2 id="what-is-flink?">What is Flink?</h2> + +<p>Apache Flink is a general-purpose data processing engine for +clusters. It runs on YARN clusters on top of data stored in Hadoop, as +well as stand-alone. Flink currently has programming APIs in Java and +Scala. Jobs are executed via Flink's own runtime engine. Flink +features:</p> + +<p><strong>Robust in-memory and out-of-core processing:</strong> once read, data stays + in memory as much as possible, and is gracefully de-staged to disk in + the presence of memory pressure from limited memory or other + applications. The runtime is designed to perform very well both in + setups with abundant memory and in setups where memory is scarce.</p> + +<p><strong>POJO-based APIs:</strong> when programming, you do not have to pack your + data into key-value pairs or some other framework-specific data + model. Rather, you can use arbitrary Java and Scala types to model + your data.</p> + +<p><strong>Efficient iterative processing:</strong> Flink contains explicit "iterate" operators + that enable very efficient loops over data sets, e.g., for machine + learning and graph applications.</p> + +<p><strong>A modular system stack:</strong> Flink is not a direct implementation of its + APIs but a layered system. All programming APIs are translated to an + intermediate program representation that is compiled and optimized + via a cost-based optimizer. Lower-level layers of Flink also expose + programming APIs for extending the system.</p> + +<p><strong>Data pipelining/streaming:</strong> Flink's runtime is designed as a + pipelined data processing engine rather than a batch processing + engine. Operators do not wait for their predecessors to finish in + order to start processing data. This results to very efficient + handling of large data sets.</p> + +<h2 id="release-0.6">Release 0.6</h2> + +<p>Flink 0.6 builds on the latest Stratosphere 0.5 release. It includes +many bug fixes and improvements that make the system more stable and +robust, as well as breaking API changes.</p> + +<p>The full release notes are available <a href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12327101";>here</a>.</p> + +<p>Download the release <a href="http://flink.incubator.apache.org/downloads.html";>here</a>.</p> + +<h2 id="contributors">Contributors</h2> + +<ul> +<li>Wilson Cao</li> +<li>Ufuk Celebi</li> +<li>Stephan Ewen</li> +<li>Jonathan Hasenburg</li> +<li>Markus Holzemer</li> +<li>Fabian Hueske</li> +<li>Sebastian Kunert</li> +<li>Vikhyat Korrapati</li> +<li>Aljoscha Krettek</li> +<li>Sebastian Kruse</li> +<li>Raymond Liu</li> +<li>Robert Metzger</li> +<li>Mingliang Qi</li> +<li>Till Rohrmann</li> +<li>Henry Saputra</li> +<li>Chesnay Schepler</li> +<li>Kostas Tzoumas</li> +<li>Robert Waury</li> +<li>Timo Walther</li> +<li>Daniel Warneke</li> +<li>Tobias Wiens</li> +</ul> + + </div> + </article> + </div> + <div class="col-md-2"></div> + </div> + <div class="row" style="padding-top:30px"> + <div class="col-md-2"></div> + <div class="col-md-8"> + <div id="disqus_thread"></div> + <script type="text/javascript"> + /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */ + var disqus_shortname = 'stratosphere-eu'; // required: replace example with your forum shortname + + /* * * DON'T EDIT BELOW THIS LINE * * */ + (function() { + var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true; + dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js'; + (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq); + })(); + </script> + <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript";>comments powered by Disqus.</a></noscript> + <a href="http://disqus.com"; class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a> + </div> + <div class="col-md-2"></div> + </div> +</div> + + </div> + <!--<section id="af-upfooter" class="af-section"> + <div class="container"> + <p>Apache Flink is an effort undergoing incubation at The Apache + Software Foundation (ASF), sponsored by the Apache Incubator PMC. + Incubation is required of all newly accepted projects until a further + review indicates that the infrastructure, communications, and + decision making process have stabilized in a manner consistent with + other successful ASF projects. 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http://git-wip-us.apache.org/repos/asf/flink-web/blob/a16dddeb/content/news/2014/09/26/release-0.6.1.html ---------------------------------------------------------------------- diff --git a/content/news/2014/09/26/release-0.6.1.html b/content/news/2014/09/26/release-0.6.1.html new file mode 100644 index 0000000..1897625 --- /dev/null +++ b/content/news/2014/09/26/release-0.6.1.html @@ -0,0 +1,297 @@ +<!DOCTYPE html> +<html lang="en"> + <head> + <meta charset="utf-8"> + <meta http-equiv="X-UA-Compatible" content="IE=edge"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + + <title>Apache Flink: Apache Flink 0.6.1 available</title> + <link rel="shortcut icon" href="favicon.ico" type="image/x-icon"> + <link rel="icon" href="favicon.ico" type="image/x-icon"> + <link rel="stylesheet" href="/css/bootstrap.css"> + <link rel="stylesheet" href="/css/bootstrap-lumen-custom.css"> + <link rel="stylesheet" href="/css/syntax.css"> + <link rel="stylesheet" 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Proposal <span class="glyphicon glyphicon-new-window"></span> + </a></li> + <li><a href="http://www.apache.org/licenses/LICENSE-2.0";>License + <span class="glyphicon glyphicon-new-window"></span> + </a></li> + <li><a href="https://github.com/apache/incubator-flink";>Source + Code <span class="glyphicon glyphicon-new-window"></span> + </a></li> + </ul></li> + <li><a href="/blog/index.html" class="">Blog</a></li> + </ul> + </nav> + </div> + </div> + </div> + </header> +</div> + + + <div style="padding-top:50px" class="container"> + <div class="container"> + <div class="row"> + <div class="col-md-2"></div> + <div class="col-md-8"> + <article> + <h2>Upcoming Events</h2> + <p class="meta">03 Oct 2014</p> + <div> + <p>We are happy to announce several upcoming Flink events both in Europe and the US. Starting with a <strong>Flink hackathon in Stockholm</strong> (Oct 8-9) and a talk about Flink at the <strong>Stockholm Hadoop User Group</strong> (Oct 8). This is followed by the very first <strong>Flink Meetup in Berlin</strong> (Oct 15). In the US, there will be two Flink Meetup talks: the first one at the <strong>Pasadena Big Data User Group</strong> (Oct 29) and the second one at <strong>Silicon Valley Hands On Programming Events</strong> (Nov 4).</p> + +<p>We are looking forward to seeing you at any of these events. The following is an overview of each event and links to the respective Meetup pages.</p> + +<h3 id="flink-hackathon,-stockholm-(oct-8-9)">Flink Hackathon, Stockholm (Oct 8-9)</h3> + +<p>The hackathon will take place at KTH/SICS from Oct 8th-9th. You can sign up here: <a href="https://docs.google.com/spreadsheet/viewform?formkey=dDZnMlRtZHJ3Z0hVTlFZVjU2MWtoX0E6MA";>https://docs.google.com/spreadsheet/viewform?formkey=dDZnMlRtZHJ3Z0hVTlFZVjU2MWtoX0E6MA</a>.</p> + +<p>Here is a rough agenda and a list of topics to work upon or look into. Suggestions and more topics are welcome.</p> + +<h4 id="wednesday-(8th)">Wednesday (8th)</h4> + +<p>9:00 - 10:00 Introduction to Apache Flink, System overview, and Dev +environment (by Stephan)</p> + +<p>10:15 - 11:00 Introduction to the topics (Streaming API and system by Gyula +& Marton), (Graphs by Vasia / Martin / Stephan)</p> + +<p>11:00 - 12:30 Happy hacking (part 1)</p> + +<p>12:30 - Lunch (Food will be provided by KTH / SICS. A big thank you to them +and also to Paris, for organizing that)</p> + +<p>13:xx - Happy hacking (part 2)</p> + +<h4 id="thursday-(9th)">Thursday (9th)</h4> + +<p>Happy hacking (continued)</p> + +<h4 id="suggestions-for-topics">Suggestions for topics</h4> + +<h5 id="streaming">Streaming</h5> + +<ul> +<li><p>Sample streaming applications (e.g. continuous heavy hitters and topics +on the twitter stream)</p></li> +<li><p>Implement a simple SQL to Streaming program parser. Possibly using +Apache Calcite (<a href="http://optiq.incubator.apache.org/";>http://optiq.incubator.apache.org/</a>)</p></li> +<li><p>Implement different windowing methods (count-based, time-based, ...)</p></li> +<li><p>Implement different windowed operations (windowed-stream-join, +windowed-stream-co-group)</p></li> +<li><p>Streaming state, and interaction with other programs (that access state +of a stream program)</p></li> +</ul> + +<h5 id="graph-analysis">Graph Analysis</h5> + +<ul> +<li><p>Prototype a Graph DSL (simple graph building, filters, graph +properties, some algorithms)</p></li> +<li><p>Prototype abstractions different Graph processing paradigms +(vertex-centric, partition-centric).</p></li> +<li><p>Generalize the delta iterations, allow flexible state access.</p></li> +</ul> + +<h3 id="meetup:-hadoop-user-group-talk,-stockholm-(oct-8)">Meetup: Hadoop User Group Talk, Stockholm (Oct 8)</h3> + +<p>Hosted by Spotify, opens at 6 PM.</p> + +<p><a href="http://www.meetup.com/stockholm-hug/events/207323222/";>http://www.meetup.com/stockholm-hug/events/207323222/</a></p> + +<h3 id="1st-flink-meetup,-berlin-(oct-15)">1st Flink Meetup, Berlin (Oct 15)</h3> + +<p>We are happy to announce the first Flink meetup in Berlin. You are very welcome to to sign up and attend. The event will be held in Betahaus Cafe.</p> + +<p><a href="http://www.meetup.com/Apache-Flink-Meetup/events/208227422/";>http://www.meetup.com/Apache-Flink-Meetup/events/208227422/</a></p> + +<h3 id="meetup:-pasadena-big-data-user-group-(oct-29)">Meetup: Pasadena Big Data User Group (Oct 29)</h3> + +<p><a href="http://www.meetup.com/Pasadena-Big-Data-Users-Group/";>http://www.meetup.com/Pasadena-Big-Data-Users-Group/</a></p> + +<h3 id="meetup:-silicon-valley-hands-on-programming-events-(nov-4)">Meetup: Silicon Valley Hands On Programming Events (Nov 4)</h3> + +<p><a href="http://www.meetup.com/HandsOnProgrammingEvents/events/210504392/";>http://www.meetup.com/HandsOnProgrammingEvents/events/210504392/</a></p> + + </div> + </article> + </div> + <div class="col-md-2"></div> + </div> + <div class="row" style="padding-top:30px"> + <div class="col-md-2"></div> + <div class="col-md-8"> + <div id="disqus_thread"></div> + <script type="text/javascript"> + /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */ + var disqus_shortname = 'stratosphere-eu'; // required: replace example with your forum shortname + + /* * * DON'T EDIT BELOW THIS LINE * * */ + (function() { + var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true; + dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js'; + (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq); + })(); + </script> + <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript";>comments powered by Disqus.</a></noscript> + <a href="http://disqus.com"; class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a> + </div> + <div class="col-md-2"></div> + </div> +</div> + + </div> + <!--<section id="af-upfooter" class="af-section"> + <div class="container"> + <p>Apache Flink is an effort undergoing incubation at The Apache + Software Foundation (ASF), sponsored by the Apache Incubator PMC. + Incubation is required of all newly accepted projects until a further + review indicates that the infrastructure, communications, and + decision making process have stabilized in a manner consistent with + other successful ASF projects. 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This release includes new user-facing features as well as performance and bug fixes, brings the Scala and Java APIs in sync, and introduces Flink Streaming. A total of 34 people have contributed to this release, a big thanks to all of them!</p> + +<p>Download Flink 0.7.0 <a href="http://flink.incubator.apache.org/downloads.html";>here</a></p> + +<p>See the release changelog <a href="https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=12315522&version=12327648";>here</a></p> + +<h2 id="overview-of-major-new-features">Overview of major new features</h2> + +<p><strong>Flink Streaming:</strong> The gem of the 0.7.0 release is undoubtedly Flink Streaming. Available currently in alpha, Flink Streaming provides a Java API on top of Apache Flink that can consume streaming data sources (e.g., from Apache Kafka, Apache Flume, and others) and process them in real time. A dedicated blog post on Flink Streaming and its performance is coming up here soon. You can check out the Streaming programming guide <a href="http://flink.incubator.apache.org/docs/0.7-incubating/streaming_guide.html";>here</a>.</p> + +<p><strong>New Scala API:</strong> The Scala API has been completely rewritten. The Java and Scala APIs have now the same syntax and transformations and will be kept from now on in sync in every future release. See the new Scala API <a href="http://flink.incubator.apache.org/docs/0.7-incubating/programming_guide.html";>here</a>.</p> + +<p><strong>Logical key expressions:</strong> You can now specify grouping and joining keys with logical names for member variables of POJO data types. For example, you can join two data sets as <code>persons.join(cities).where(âzipâ).equalTo(âzipcodeâ)</code>. Read more <a href="http://flink.incubator.apache.org/docs/0.7-incubating/programming_guide.html#specifying-keys";>here</a>.</p> + +<p><strong>Hadoop MapReduce compatibility:</strong> You can run unmodified Hadoop Mappers and Reducers (mapred API) in Flink, use all Hadoop data types, and read data with all Hadoop InputFormats.</p> + +<p><strong>Collection-based execution backend:</strong> The collection-based execution backend enables you to execute a Flink job as a simple Java collections program, bypassing completely the Flink runtime and optimizer. This feature is extremely useful for prototyping, and embedding Flink jobs in projects in a very lightweight manner.</p> + +<p><strong>Record API deprecated:</strong> The (old) Stratosphere Record API has been marked as deprecated and is planned for removal in the 0.9.0 release.</p> + +<p><strong>BLOB service:</strong> This release contains a new service to distribute jar files and other binary data among the JobManager, TaskManagers and the client. </p> + +<p><strong>Intermediate data sets:</strong> A major rewrite of the system internals introduces intermediate data sets as first class citizens. The internal state machine that tracks the distributed tasks has also been completely rewritten for scalability. While this is not visible as a user-facing feature yet, it is the foundation for several upcoming exciting features.</p> + +<p><strong>Note:</strong> Currently, there is limited support for Java 8 lambdas when compiling and running from an IDE. The problem is due to type erasure and whether Java compilers retain type information. We are currently working with the Eclipse and OpenJDK communities to resolve this.</p> + +<h2 id="contributors">Contributors</h2> + +<ul> +<li>Tamas Ambrus</li> +<li>Mariem Ayadi</li> +<li>Marton Balassi</li> +<li>Daniel Bali</li> +<li>Ufuk Celebi</li> +<li>Hung Chang</li> +<li>David Eszes</li> +<li>Stephan Ewen</li> +<li>Judit Feher</li> +<li>Gyula Fora</li> +<li>Gabor Hermann</li> +<li>Fabian Hueske</li> +<li>Vasiliki Kalavri</li> +<li>Kristof Kovacs</li> +<li>Aljoscha Krettek</li> +<li>Sebastian Kruse</li> +<li>Sebastian Kunert</li> +<li>Matyas Manninger</li> +<li>Robert Metzger</li> +<li>Mingliang Qi</li> +<li>Till Rohrmann</li> +<li>Henry Saputra</li> +<li>Chesnay Schelper</li> +<li>Moritz Schubotz</li> +<li>Hung Sendoh Chang</li> +<li>Peter Szabo</li> +<li>Jonas Traub</li> +<li>Fabian Tschirschnitz</li> +<li>Artem Tsikiridis</li> +<li>Kostas Tzoumas</li> +<li>Timo Walther</li> +<li>Daniel Warneke</li> +<li>Tobias Wiens</li> +<li>Yingjun Wu</li> +</ul> + + </div> + </article> + </div> + <div class="col-md-2"></div> + </div> + <div class="row" style="padding-top:30px"> + <div class="col-md-2"></div> + <div class="col-md-8"> + <div id="disqus_thread"></div> + <script type="text/javascript"> + /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */ + var disqus_shortname = 'stratosphere-eu'; // required: replace example with your forum shortname + + /* * * DON'T EDIT BELOW THIS LINE * * */ + (function() { + var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true; + dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js'; + (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq); + })(); + </script> + <noscript>Please enable JavaScript to view the <a href="http://disqus.com/?ref_noscript";>comments powered by Disqus.</a></noscript> + <a href="http://disqus.com"; class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a> + </div> + <div class="col-md-2"></div> + </div> +</div> + + </div> + <!--<section id="af-upfooter" class="af-section"> + <div class="container"> + <p>Apache Flink is an effort undergoing incubation at The Apache + Software Foundation (ASF), sponsored by the Apache Incubator PMC. + Incubation is required of all newly accepted projects until a further + review indicates that the infrastructure, communications, and + decision making process have stabilized in a manner consistent with + other successful ASF projects. 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