Author: idownes
Date: Thu Nov 20 23:28:27 2014
New Revision: 1640836
URL: http://svn.apache.org/r1640836
Log:
Add more for 0.21.0 release.
Added:
mesos/site/publish/blog/mesos-0-21-0-released/
mesos/site/publish/blog/mesos-0-21-0-released/index.html
mesos/site/publish/documentation/latest/running-torque-or-mpi-on-mesos/index.html
Added: mesos/site/publish/blog/mesos-0-21-0-released/index.html
URL:
http://svn.apache.org/viewvc/mesos/site/publish/blog/mesos-0-21-0-released/index.html?rev=1640836&view=auto
==============================================================================
--- mesos/site/publish/blog/mesos-0-21-0-released/index.html (added)
+++ mesos/site/publish/blog/mesos-0-21-0-released/index.html Thu Nov 20
23:28:27 2014
@@ -0,0 +1,195 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title>Mesos 0.21.0 Released</title>
+ <meta name="viewport" content="width=device-width,
initial-scale=1.0">
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href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"
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+ <li><a
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+ <li><a
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+ <li><a
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+ <div class="row">
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+<div class="col-md-3">
+ <div class="meta">
+ <span class="author">
+
+ <span class="author_contact">
+ <p><strong>Ian Downes</strong></p>
+ <p><a href="http://twitter.com/ndwns";>@ndwns</a></p>
+ </span>
+ </span>
+ <p><em>Posted November 17, 2014</em></p>
+ </div>
+
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+
+<div class="post col-md-9">
+ <h1>Mesos 0.21.0 Released</h1>
+
+ <p>The latest Mesos release, 0.21.0, is now available for <a
href="http://mesos.apache.org/downloads/";>download</a>. This version includes
the following features and improvements:</p>
+
+<ul>
+<li>Task reconciliation for frameworks (<a
href="https://issues.apache.org/jira/browse/MESOS-1407";>MESOS-1407</a>)</li>
+<li>Support for Mesos modules (<a
href="https://issues.apache.org/jira/browse/MESOS-1931";>MESOS-1931</a>)</li>
+<li>Task status now includes source and reason (<a
href="https://issues.apache.org/jira/browse/MESOS-343";>MESOS-343</a>, <a
href="https://issues.apache.org/jira/browse/MESOS-1143";>MESOS-1143</a>)</li>
+<li>A shared filesystem isolator (<a
href="https://issues.apache.org/jira/browse/MESOS-1143";>MESOS-1586</a>)</li>
+<li>A pid namespace isolator (<a
href="https://issues.apache.org/jira/browse/MESOS-1765";>MESOS-1765</a>)</li>
+</ul>
+
+
+<p>Full release notes are available in the release <a
href="https://github.com/apache/mesos/blob/master/CHANGELOG";>CHANGELOG</a>.</p>
+
+<h3>State Reconciliation</h3>
+
+<p>Frameworks are now able to reconcile task state through the mesos API, to
ensure that they remain eventually consistent in the face of failures. Read
more about reconciliation <a
href="http://mesos.apache.org/documentation/latest/reconciliation/";>here</a>.</p>
+
+<h3>Mesos Modules</h3>
+
+<p>Experimental support for Mesos modules was introduced in Mesos 0.21.0;
+please note the <a
href="http://mesos.apache.org/documentation/latest/modules";>disclaimer</a>.</p>
+
+<p>Mesos modules provide a way to easily extend inner workings of Mesos by
creating and using shared libraries that are loaded on demand. Modules can be
used to customize Mesos without having to recompiling/relinking for each
specific use case. Modules can isolate external dependencies into separate
libraries, thus resulting into a smaller Mesos core. Modules also make it easy
to experiment with new features. For example, imagine loadable allocators that
contain a VM (Lua, Python, â¦) which makes it possible to try out new
allocator algorithms written in scripting languages without forcing those
dependencies into the project. Finally, modules provide an easy way for third
parties to easily extend Mesos without having to know all the internal
details.</p>
+
+<p>For more details, please read the <a
href="http://mesos.apache.org/documentation/latest/modules";>modules
documentation</a></p>
+
+<h3>Task Status Includes Source and Reason</h3>
+
+<p>The <code>TaskStatus</code> associated with a status update has relied on a
single enum and free-form string to communicate the status. There are benefits
to adding more data to the status update, and in Mesos 0.21.0, we have
introduced the notion of a <code>Source</code> and <code>Reason</code>.</p>
+
+<p>The source of a status update is, broadly speaking, the actor that changed
the status. This can currently be Master, Slave, or Executor. Similarly, we
have added an enumeration of reasons for the status update. The list can be
found in <code>include/mesos/mesos.proto</code> and is fairly extensive.</p>
+
+<p>Our hope is that frameworks can use the source and reason to better
communicate status updates to end users, and make better scheduling
decisions.</p>
+
+<p>We have also introduced the notion of a <code>TASK_ERROR</code> state,
distinct from <code>TASK_LOST</code>. The semantic difference is that tasks
that are updated as lost can be rescheduled and should succeed, while tasks
with status error will continue to fail if they are rescheduled. In Mesos
0.21.0 we do not send <code>TASK_ERROR</code> but it has been defined so
frameworks can prepare to receive it. We will start sending it in Mesos
0.22.0.</p>
+
+<h3>Shared Filesystem Isolator</h3>
+
+<p>Mesos 0.21.0 introduces an optional shared filesystem isolator for the
Mesos Containerizer. The isolator does not provide full filesystem
encapsulation like Docker. It is intended for deployments where containers
share the host’s root filesystem but certain parts of the filesystem
should be made private to each container.</p>
+
+<p>One example use-case is a private <code>/tmp</code> directory for each
container. Processes running in the container will see a normal
<code>/tmp</code> directory but it actually refers to a subdirectory of the
executor work directory, e.g., the relative path <code>./tmp</code>. Processes
will not be able to see files in the host’s <code>/tmp</code> directory
or the <code>/tmp</code> directory of any other container.</p>
+
+<p>This isolator is available only on Linux.</p>
+
+<h3>Pid Namespace Isolator</h3>
+
+<p>Mesos 0.21.0 also introduces an optional pid namespace isolator for the
Mesos Containerizer. The isolator runs each container in its own pid namespace
such that processes inside a container will not have visibility to processes
running on the host or in other containers.</p>
+
+<p>The Mesos Containerizer Launcher has been updated to use the pid namespace
to terminate all processes when destroying a container. This avoids known
kernel bugs and race conditions when using the freezer cgroup. If the container
is not running inside a pid namespace (started with an earlier slave version),
the launcher will fall back to the prior behavior and use the freezer
cgroup.</p>
+
+<p>This isolator is only available on Linux.</p>
+
+<h3>Getting Involved</h3>
+
+<p>We encourage you to try out this release and let us know what you think. If
you run into any issues, please let us know on the <a
href="https://mesos.apache.org/community";>user mailing list and IRC</a>.</p>
+
+<h3>Thanks</h3>
+
+<p>Thanks to the 27 <a
href="https://github.com/apache/mesos/graphs/contributors";>contributors</a> who
made 0.21.0 possible:</p>
+
+<p>Adam Bordelon, Alexander Rukletsov, Benjamin Hindman, Benjamin Mahler,
Bernd Mathiske, Chengwei Yang, Chi Zhang, Cody Maloney, Dave Lester, Dominic
Hamon, Evelina Dumitrescu, Ian Downes, Jie Yu, Joe Gordon, Joris Van
Remoortere, Dharmesh Kakadia, Kapil Arya, Michael Park, Niklas Q. Nielsen, R.B.
Boyer, Thomas Rampelberg, Till Toenshoff, Timothy Chen, Timothy St. Clair, Tobi
Knaup, Vinod Kone.</p>
+
+</div>
+</div>
+
+
+ <hr>
+
+ <!-- footer -->
+ <div class="footer">
+ <p>© 2012-2014 <a href="http://apache.org";>The Apache
Software Foundation</a>.
+ Apache Mesos, the Apache feather logo, and the Apache Mesos
project logo are trademarks of The Apache Software Foundation.<p>
+ </div><!-- /footer -->
+
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+ </body>
+</html>
\ No newline at end of file
Added:
mesos/site/publish/documentation/latest/running-torque-or-mpi-on-mesos/index.html
URL:
http://svn.apache.org/viewvc/mesos/site/publish/documentation/latest/running-torque-or-mpi-on-mesos/index.html?rev=1640836&view=auto
==============================================================================
---
mesos/site/publish/documentation/latest/running-torque-or-mpi-on-mesos/index.html
(added)
+++
mesos/site/publish/documentation/latest/running-torque-or-mpi-on-mesos/index.html
Thu Nov 20 23:28:27 2014
@@ -0,0 +1,108 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ <meta charset="utf-8">
+ <title></title>
+ <meta name="viewport" content="width=device-width,
initial-scale=1.0">
+
+ <link
href="//netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css"
rel="stylesheet">
+ <link rel="alternate" type="application/atom+xml"
title="Apache Mesos Blog" href="/blog/feed.xml">
+
+ <link href="../../../assets/css/main.css" media="screen"
rel="stylesheet" type="text/css" />
+
+
+
+ <!-- Google Analytics Magic -->
+ <script type="text/javascript">
+ var _gaq = _gaq || [];
+ _gaq.push(['_setAccount', 'UA-20226872-1']);
+ _gaq.push(['_setDomainName', 'apache.org']);
+ _gaq.push(['_trackPageview']);
+
+ (function() {
+ var ga = document.createElement('script'); ga.type
= 'text/javascript'; ga.async = true;
+ ga.src = ('https:' == document.location.protocol ?
'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
+ var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
+ })();
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+ </head>
+ <body>
+ <!-- magical breadcrumbs -->
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+ <div class="dropdown">
+ <a data-toggle="dropdown"
href="#">Apache Software Foundation <span class="caret"></span></a>
+ <ul class="dropdown-menu" role="menu"
aria-labelledby="dLabel">
+ <li><a
href="http://www.apache.org";>Apache Homepage</a></li>
+ <li><a
href="http://www.apache.org/licenses/";>License</a></li>
+ <li><a
href="http://www.apache.org/foundation/sponsorship.html";>Sponsorship</a></li>
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+ </ul>
+ </div>
+ </li>
+ <li><a href="http://mesos.apache.org";>Apache
Mesos</a></li>
+
+
+ <li><a href="/documentation
+/">Documentation
+</a></li>
+
+
+ </ul><!-- /breadcrumb -->
+ </div>
+
+ <!-- navbar excitement -->
+ <div class="navbar navbar-static-top" role="navigation">
+ <div class="navbar-inner">
+ <div class="container">
+ <a href="/" class="logo"><img
src="/assets/img/mesos_logo.png" alt="Apache Mesos logo" /></a>
+ <div class="nav-collapse">
+ <ul class="nav nav-pills
navbar-right">
+ <li><a
href="/gettingstarted/">Getting Started</a></li>
+ <li><a
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+ <li><a
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+ <li><a
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+ </ul>
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+ </div>
+ </div>
+ </div><!-- /.navbar -->
+
+ <div class="container">
+
+ <div class="row-fluid">
+ <div class="col-md-4">
+ <h4>If you're new to Mesos</h4>
+ <p>See the <a href="/gettingstarted/">getting started</a> page
for more information about downloading, building, and deploying Mesos.</p>
+
+ <h4>If you'd like to get involved or you're looking for
support</h4>
+ <p>See our <a href="/community/">community</a> page for more
details.</p>
+ </div>
+ <div class="col-md-8">
+ <h1>Torque or MPI on Mesos</h1>
+
+<p>Torque is cluster scheduler that we have ported in a very simple way (via
some Python wrappers around Torque) to run on top of Mesos. This port can be
found in <code>MESOS_HOME/frameworks/torque</code>. There is a README.txt in
that directory with some details. But for now while were in Alpha looking
directly at the python source for the framework scheduler and executor will be
helpful.</p>
+
+<p>We have also run MPICH2 directly on top of mesos. See
<code>MESOS_HOME/frameworks/mpi</code> for this port. Basically it sets up the
MPICH2 MPD ring for you when you use nmpiexec (which is named that way because
Mesos used to be called <strong>N</strong>exus).</p>
+
+ </div>
+</div>
+
+
+ <hr>
+
+ <!-- footer -->
+ <div class="footer">
+ <p>© 2012-2014 <a href="http://apache.org";>The Apache
Software Foundation</a>.
+ Apache Mesos, the Apache feather logo, and the Apache Mesos
project logo are trademarks of The Apache Software Foundation.<p>
+ </div><!-- /footer -->
+
+ </div> <!-- /container -->
+
+ <!-- JS -->
+ <script src="//code.jquery.com/jquery-1.11.0.min.js"
type="text/javascript"></script>
+ <script
src="//netdna.bootstrapcdn.com/bootstrap/3.1.1/js/bootstrap.min.js"
type="text/javascript"></script>
+ </body>
+</html>
\ No newline at end of file
