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Posted to commits@flink.apache.org by uc...@apache.org on 2015/05/15 16:10:40 UTC

[41/52] [abbrv] flink-web git commit: Address PR comments

http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2012/11/12/btw2013demo.html
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+<!DOCTYPE html>
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+    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
+    <title>Apache Flink: Stratosphere Demo Paper Accepted for BTW 2013</title>
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+      <h1>Stratosphere Demo Paper Accepted for BTW 2013</h1>
+
+      <article>
+        <p>12 Nov 2012</p>
+
+ <p>Our demo submission<br />
+<strong><cite>"Applying Stratosphere for Big Data Analytics"</cite></strong><br />
+has been accepted for BTW 2013 in Magdeburg, Germany.<br />
+The demo focuses on Stratosphere's query language Meteor, which has been presented in our paper <cite>"Meteor/Sopremo: An Extensible Query Language and Operator Model"</cite> <a href="/assets/papers/Sopremo_Meteor BigData.pdf">[pdf]</a> at the BigData workshop associated with VLDB 2012 in Istanbul.</p>
+<p>Visit our demo, and talk to us if you are going to attend BTW 2013.</p>
+<p><strong>Abstract:</strong><br />
+Analyzing big data sets as they occur in modern business and science applications requires query languages that allow for the specification of complex data processing tasks. Moreover, these ideally declarative query specifications have to be optimized, parallelized and scheduled for processing on massively parallel data processing platforms. This paper demonstrates the application of Stratosphere to different kinds of Big Data Analytics tasks. Using examples from different application domains, we show how to formulate analytical tasks as Meteor queries and execute them with Stratosphere. These examples include data cleansing and information extraction tasks, and a correlation analysis of microblogging and stock trade volume data that we describe in detail in this paper.</p>
+
+
+      </article>
+    </div>
+
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2012/11/21/previewICDE2013.html
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+<!DOCTYPE html>
+<html lang="en">
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+    <title>Apache Flink: ICDE 2013 Demo Preview</title>
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+      <h1>ICDE 2013 Demo Preview</h1>
+
+      <article>
+        <p>21 Nov 2012</p>
+
+ <p>This is a preview of our demo that will be presented at ICDE 2013 in Brisbane.<br />
+The demo shows how static code analysis can be leveraged to reordered UDF operators in data flow programs.</p>
+<p>Detailed information can be found in our papers which are available on the <a href="/publications">publication</a> page.</p>
+<p><iframe width="420" height="315" src="http://www.youtube.com/embed/ZYwCMgPXFVE" frameborder="0" allowfullscreen></iframe></p>
+      </article>
+    </div>
+
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2013/03/27/www-demo-paper.html
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diff --git a/content/news/2013/03/27/www-demo-paper.html b/content/news/2013/03/27/www-demo-paper.html
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+<!DOCTYPE html>
+<html lang="en">
+  <head>
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+    <!-- The above 3 meta tags *must* come first in the head; any other head content must come *after* these tags -->
+    <title>Apache Flink: Demo Paper "Large-Scale Social-Media Analytics on Stratosphere" Accepted at WWW 2013</title>
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+      <h1>Demo Paper "Large-Scale Social-Media Analytics on Stratosphere" Accepted at WWW 2013</h1>
+
+      <article>
+        <p>27 Mar 2013</p>
+
+   <p>Our demo submission<br />
+<strong><cite>"Large-Scale Social-Media Analytics on Stratosphere"</cite></strong><br />
+by Christoph Boden, Marcel Karnstedt, Miriam Fernandez and Volker Markl<br />
+has been accepted for WWW 2013 in Rio de Janeiro, Brazil.</p>
+<p>Visit our demo, and talk to us if you are attending WWW 2013.</p>
+<p><strong>Abstract:</strong><br />
+The importance of social-media platforms and online communities - in business as well as public context - is more and more acknowledged and appreciated by industry and researchers alike. Consequently, a wide range of analytics has been proposed to understand, steer, and exploit the mechanics and laws driving their functionality and creating the resulting benefits. However, analysts usually face significant problems in scaling existing and novel approaches to match the data volume and size of modern online communities. In this work, we propose and demonstrate the usage of the massively parallel data prossesing system Stratosphere, based on second order functions as an extended notion of the MapReduce paradigm, to provide a new level of scalability to such social-media analytics. Based on the popular example of role analysis, we present and illustrate how this massively parallel approach can be leveraged to scale out complex data-mining tasks, while providing a programming approach th
 at eases the formulation of complete analytical workflows.</p> 
+
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2013/10/21/cikm2013-paper.html
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+    <title>Apache Flink: Paper "All Roads Lead to Rome: Optimistic Recovery for Distributed Iterative Data Processing" accepted at CIKM 2013</title>
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+      <h1>Paper "All Roads Lead to Rome: Optimistic Recovery for Distributed Iterative Data Processing" accepted at CIKM 2013</h1>
+
+      <article>
+        <p>21 Oct 2013</p>
+
+<p>Our paper ““All Roads Lead to Rome:” Optimistic Recovery for Distributed
+Iterative Data Processing” authored by Sebastian Schelter, Kostas
+Tzoumas, Stephan Ewen and Volker Markl has been accepted accepted at the
+ACM International Conference on Information and Knowledge Management
+(CIKM 2013) in San Francisco.</p>
+
+<p><strong>Abstract</strong></p>
+
+<p>Executing data-parallel iterative algorithms on large datasets is
+crucial for many advanced analytical applications in the fields of data
+mining and machine learning. Current systems for executing iterative
+tasks in large clusters typically achieve fault tolerance through
+rollback recovery. The principle behind this pessimistic approach is to
+periodically checkpoint the algorithm state. Upon failure, the system
+restores a consistent state from a previously written checkpoint and
+resumes execution from that point.</p>
+
+<p>We propose an optimistic recovery mechanism using algorithmic
+compensations. Our method leverages the robust, self-correcting nature
+of a large class of fixpoint algorithms used in data mining and machine
+learning, which converge to the correct solution from various
+intermediate consistent states. In the case of a failure, we apply a
+user-defined compensate function that algorithmically creates such a
+consistent state, instead of rolling back to a previous checkpointed
+state. Our optimistic recovery does not checkpoint any state and hence
+achieves optimal failure-free performance with respect to the overhead
+necessary for guaranteeing fault tolerance. We illustrate the
+applicability of this approach for three wide classes of problems.
+Furthermore, we show how to implement the proposed optimistic recovery
+mechanism in a data flow system. Similar to the Combine operator in
+MapReduce, our proposed functionality is optional and can be applied to
+increase performance without changing the semantics of programs. In an
+experimental evaluation on large datasets, we show that our proposed
+approach provides optimal failure-free performance. In the absence of
+failures our optimistic scheme is able to outperform a pessimistic
+approach by a factor of two to five. In presence of failures, our
+approach provides fast recovery and outperforms pessimistic approaches
+in the majority of cases.</p>
+
+<p><a href="/assets/papers/optimistic.pdf">Download the paper [PDF]</a></p>
+
+
+      </article>
+    </div>
+
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2013/12/13/humboldt-innovation-award.html
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+    <title>Apache Flink: Stratosphere wins award at Humboldt Innovation Competition "Big Data: Research meets Startups"</title>
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+      
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+    <div class="row">
+      <h1>Stratosphere wins award at Humboldt Innovation Competition "Big Data: Research meets Startups"</h1>
+
+      <article>
+        <p>13 Dec 2013</p>
+
+    <p> Stratosphere won the second place in
+    the <a href="http://www.humboldt-innovation.de/de/newsdetail/News/View/Forum%2BJunge%2BSpitzenforscher%2BBIG%2BData%2B%2BResearch%2Bmeets%2BStartups-123.html">competition</a>
+    organized by Humboldt Innovation on "Big Data: Research meets
+    Startups," where several research projects were evaluated by a
+    panel of experts from the Berlin startup ecosystem. The award
+    includes a monetary prize of 10,000 euros.
+    </p>
+
+    <p>We are extremely excited about this award, as it further
+    showcases the relevance of the Stratosphere platform and Big Data
+    technology in general for the technology startup world.
+    </p>
+
+      </article>
+    </div>
+
+    <div class="row">
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+      <script type="text/javascript">
+        /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
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+
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+            var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2014/01/10/stratosphere-hadoop-summit.html
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diff --git a/content/news/2014/01/10/stratosphere-hadoop-summit.html b/content/news/2014/01/10/stratosphere-hadoop-summit.html
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+<!DOCTYPE html>
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+    <title>Apache Flink: Stratosphere got accepted to the Hadoop Summit Europe in Amsterdam</title>
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+    <div class="container">
+      
+
+<div class="row">
+  <div class="col-sm-8 col-sm-offset-2">
+    <div class="row">
+      <h1>Stratosphere got accepted to the Hadoop Summit Europe in Amsterdam</h1>
+
+      <article>
+        <p>10 Jan 2014</p>
+
+<p>The Stratosphere team is proud to announce that it is going to present at the <a href="http://hadoopsummit.org/amsterdam/">Hadoop Summit 2014 in Amsterdam</a> on April 2-3. Our talk “Big Data looks tiny from Stratosphere” is part of the “Future of Hadoop” Track. The talk abstract already made it into the top 5 in the <a href="https://hadoopsummit.uservoice.com/forums/196822-future-of-apache-hadoop/filters/top">Community Vote</a> that took place by the end of last year.</p>
+
+
+      </article>
+    </div>
+
+    <div class="row">
+      <div id="disqus_thread"></div>
+      <script type="text/javascript">
+        /* * * CONFIGURATION VARIABLES: EDIT BEFORE PASTING INTO YOUR WEBPAGE * * */
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+
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+            var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
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http://git-wip-us.apache.org/repos/asf/flink-web/blob/5e1410e5/content/news/2014/01/12/0.4-migration-guide.html
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diff --git a/content/news/2014/01/12/0.4-migration-guide.html b/content/news/2014/01/12/0.4-migration-guide.html
new file mode 100644
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--- /dev/null
+++ b/content/news/2014/01/12/0.4-migration-guide.html
@@ -0,0 +1,261 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
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+    <meta name="viewport" content="width=device-width, initial-scale=1">
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+    <title>Apache Flink: Stratosphere Version 0.4 Migration Guide</title>
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+                <li><a href="https://github.com/apache/flink"><small><span class="glyphicon glyphicon-new-window"></span></small> GitHub</a></li>
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+      <h1>Stratosphere Version 0.4 Migration Guide</h1>
+
+      <article>
+        <p>12 Jan 2014</p>
+
+<p>This guide is intended to help users of previous Stratosphere versions to migrate their programs to the new API of v0.4.</p>
+
+<p>Version <code>0.4-rc1</code>, <code>0.4</code> and all newer versions have the new API. If you want to have the most recent version before the code change, please set the version to <code>0.4-alpha.3-SNAPSHOT</code>. (Note that the <code>0.4-alpha</code> versions are only available in the snapshot repository).</p>
+
+<h4 id="maven-dependencies">Maven Dependencies</h4>
+<p>Since we also reorganized the Maven project structure, existing programs need to update the Maven dependencies to <code>stratosphere-java</code> (and <code>stratosphere-clients</code>, for examples and executors).</p>
+
+<p>The typical set of Maven dependencies for Stratosphere Java programs is:</p>
+
+<div class="highlight"><pre><code class="language-diff">       &lt;groupId&gt;eu.stratosphere&lt;/groupId&gt;
+<span class="gd">-      &lt;artifactId&gt;pact-common&lt;/artifactId&gt;</span>
+<span class="gd">-      &lt;version&gt;0.4-SNAPSHOT&lt;/version&gt;</span>
+<span class="gi">+      &lt;artifactId&gt;stratosphere-java&lt;/artifactId&gt;</span>
+<span class="gi">+      &lt;version&gt;0.4&lt;/version&gt;</span>
+
+<span class="gd">-      &lt;artifactId&gt;pact-clients&lt;/artifactId&gt;</span>
+<span class="gd">-      &lt;version&gt;0.4-SNAPSHOT&lt;/version&gt;</span>
+<span class="gi">+      &lt;artifactId&gt;stratosphere-clients&lt;/artifactId&gt;</span>
+<span class="gi">+      &lt;version&gt;0.4&lt;/version&gt;</span></code></pre></div>
+
+<h4 id="renamed-classes">Renamed classes</h4>
+
+<p>We renamed many of the most commonly used classes to make their names more intuitive:</p>
+
+<table class="table table-striped">
+  <thead>
+  	<tr>
+  	<th>Old Name (before <code>0.4</code>)</th>
+  	<th>New Name (<code>0.4</code> and after)</th>
+  </tr>
+  </thead>
+ 	<tbody>
+	  <tr>
+	  	<td>Contract</td>
+	  	<td>Operator</td>
+	  </tr>
+	  <tr>
+	  	<td>MatchContract</td>
+	  	<td>JoinOperator</td>
+	  </tr>
+
+	  	  <tr>
+	  	<td>[Map, Reduce, ...]Stub</td>
+	  	<td>[Map, Reduce, ...]Function</td>
+	  </tr>
+	  	  <tr>
+	  	<td>MatchStub</td>
+	  	<td>JoinFunction</td>
+	  </tr>
+	  	  <tr>
+	  	<td>Pact[Integer, Double, ...]</td>
+	  	<td>IntValue, DoubleValue, ...</td>
+	  </tr>	  
+	  <tr>
+	  	<td>PactRecord</td>
+	  	<td>Record</td>
+	  </tr>
+	  	  <tr>
+	  	<td>PlanAssembler</td>
+	  	<td>Program</td>
+	  </tr>
+	  	  <tr>
+	  	<td>PlanAssemblerDescription</td>
+	  	<td>ProgramDescription</td>
+	  </tr>
+	  	  <tr>
+	  	<td>RecordOutputFormat</td>
+	  	<td>CsvOutputFormat</td>
+	  </tr>
+	</tbody>
+</table>
+
+<p>Package names have been adapted as well.
+For a complete overview of the renamings, have a look at <a href="https://github.com/stratosphere/stratosphere/issues/257">issue #257 on GitHub</a>.</p>
+
+<p>We suggest for Eclipse user adjust the programs as follows: Delete all old Stratosphere imports, then rename the the classes (<code>PactRecord</code> to <code>Record</code> and so on). Finally, use the “Organize Imports” function (<code>CTRL+SHIFT+O</code>) to choose the right imports. The names should be unique so always pick the classes that are in the <code>eu.stratosphere</code> package.</p>
+
+<p>Please contact us in the comments below, on the mailing list or on GitHub if you have any issues migrating to the latest Stratosphere release.</p>
+
+      </article>
+    </div>
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