content/blog/aurora-0-19-0-released/index.html - aurora-website - Git at Google

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 			  <p><strong>Bill Farner</strong></p>
 			</span>
 		</span>
 		<p><em>Posted November 10, 2017</em></p>
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 <div class="post col-md-9">
 	<h1>0.19.0 Released</h1>

 	<p>The latest Apache Aurora release, 0.19.0, is now available for
 <a href="http://aurora.apache.org/downloads/">download</a>. Here are some highlights in this release:</p>

 <ul>
 <li>Added the ability to configure the executor&rsquo;s stop timeout, which is the maximum amount of time
 the executor will wait during a graceful shutdown sequence before continuing the &lsquo;Forceful
 Termination&rsquo; process (see
 <a href="http://aurora.apache.org/documentation/latest/reference/task-lifecycle/">here</a> for details).</li>
 <li>Added the ability to configure the wait period after calling the graceful shutdown endpoint and
 the shutdown endpoint using the <code>graceful_shutdown_wait_secs</code> and <code>shutdown_wait_secs</code> fields in
 <code>HttpLifecycleConfig</code> respectively. Previously, the executor would only wait 5 seconds between
 steps (adding up to a total of 10 seconds as there are 2 steps). The overall waiting period is
 bounded by the executor&rsquo;s stop timeout, which can be configured using the executor&rsquo;s
 <code>stop_timeout_in_secs</code> flag.</li>
 <li>Added the <code>thrift_method_interceptor_modules</code> scheduler flag that lets cluster operators inject
 custom Thrift method interceptors.</li>
 <li>Increase default ZooKeeper session timeout from 4 to 15 seconds.</li>
 <li>Added option <code>-zk_connection_timeout</code> to control the connection timeout of ZooKeeper connections.</li>
 <li>Added scheduler command line argument <code>-hold_offers_forever</code>, suitable for use in clusters where
 Aurora is the only framework.  This setting disables other options such as <code>-min_offer_hold_time</code>,
 and allows the scheduler to more efficiently cache scheduling attempts.</li>
 <li>The scheduler no longer uses an internal H2 database for storage.</li>
 <li>There is a new Scheduler UI which, in addition to the facelift, provides the ability to inject your
 own custom UI components.</li>
 </ul>

 <p>Deprecations and removals:</p>

 <ul>
 <li>Removed the deprecated command line argument <code>-zk_use_curator</code>, removing the choice to use the
 legacy ZooKeeper client.</li>
 <li>Removed the <code>rewriteConfigs</code> thrift API call in the scheduler. This was a last-ditch mechanism
 to modify scheduler state on the fly. It was considered extremely risky to use since its
 inception, and is safer to abandon due to its lack of use and likelihood for code rot.</li>
 <li>Removed the Job environment validation from the command line client. Validation was moved to the
 the scheduler side through the <code>allowed_job_environments</code> option. By default allowing any of
 <code>devel</code>, <code>test</code>, <code>production</code>, and any value matching the regular expression <code>staging[0-9]*</code>.</li>
 <li>Removed scheduler command line arguments related to the internal H2 database, which is no longer
 used:

 <ul>
 <li><code>-use_beta_db_task_store</code></li>
 <li><code>-enable_db_metrics</code></li>
 <li><code>-slow_query_log_threshold</code></li>
 <li><code>-db_row_gc_interval</code></li>
 <li><code>-db_lock_timeout</code></li>
 <li><code>-db_max_active_connection_count</code></li>
 <li><code>-db_max_idle_connection_count</code></li>
 <li><code>-snapshot_hydrate_stores</code></li>
 <li><code>-enable_h2_console</code></li>
 </ul></li>
 </ul>

 <p>Full release notes are available in the release
 <a href="https://gitbox.apache.org/repos/asf?p=aurora.git&amp;f=CHANGELOG&amp;hb=rel/0.19.0">CHANGELOG</a>.</p>

 <h2 id="thanks">Thanks</h2>

 <p>Thanks to the 14 contributors who made Apache Aurora 0.19.0 possible:</p>

 <ul>
 <li>Bill Farner</li>
 <li>David McLaughlin</li>
 <li>Derek Slager</li>
 <li>Jordan Ly</li>
 <li>Kai Huang</li>
 <li>Keisuke Nishimoto</li>
 <li>Mauricio Garavaglia</li>
 <li>Renan DelValle</li>
 <li>Reza Motamedi</li>
 <li>Robert Allen</li>
 <li>Ruben D. Porras</li>
 <li>Santhosh Kumar Shanmugham</li>
 <li>Stephan Erb</li>
 <li>Zameer Manji</li>
 </ul>

 </div>
 </div>

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 			<p class="disclaimer">&copy; 2014-2017 <a href="http://www.apache.org/">Apache Software Foundation</a>. Licensed under the <a href="http://www.apache.org/licenses/">Apache License v2.0</a>. The <a href="https://www.flickr.com/photos/trondk/12706051375/">Aurora Borealis IX photo</a> displayed on the homepage is available under a <a href="https://creativecommons.org/licenses/by-nc-nd/2.0/">Creative Commons BY-NC-ND 2.0 license</a>. Apache, Apache Aurora, and the Apache feather logo are trademarks of The Apache Software Foundation.</p>
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	<p><strong>Bill Farner</strong></p>
	</span>
	</span>
	<p><em>Posted November 10, 2017</em></p>
	</div>

	<div class="share">
	<span class="social-share-button"><a href="https://twitter.com/share" class="twitter-share-button" data-via="ApacheAurora">Tweet</a></span>

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	<div class="post col-md-9">
	<h1>0.19.0 Released</h1>

	<p>The latest Apache Aurora release, 0.19.0, is now available for
	<a href="http://aurora.apache.org/downloads/">download</a>. Here are some highlights in this release:</p>

	<ul>
	<li>Added the ability to configure the executor’s stop timeout, which is the maximum amount of time
	the executor will wait during a graceful shutdown sequence before continuing the ‘Forceful
	Termination’ process (see
	<a href="http://aurora.apache.org/documentation/latest/reference/task-lifecycle/">here</a> for details).</li>
	<li>Added the ability to configure the wait period after calling the graceful shutdown endpoint and
	the shutdown endpoint using the <code>graceful_shutdown_wait_secs</code> and <code>shutdown_wait_secs</code> fields in
	<code>HttpLifecycleConfig</code> respectively. Previously, the executor would only wait 5 seconds between
	steps (adding up to a total of 10 seconds as there are 2 steps). The overall waiting period is
	bounded by the executor’s stop timeout, which can be configured using the executor’s
	<code>stop_timeout_in_secs</code> flag.</li>
	<li>Added the <code>thrift_method_interceptor_modules</code> scheduler flag that lets cluster operators inject
	custom Thrift method interceptors.</li>
	<li>Increase default ZooKeeper session timeout from 4 to 15 seconds.</li>
	<li>Added option <code>-zk_connection_timeout</code> to control the connection timeout of ZooKeeper connections.</li>
	<li>Added scheduler command line argument <code>-hold_offers_forever</code>, suitable for use in clusters where
	Aurora is the only framework. This setting disables other options such as <code>-min_offer_hold_time</code>,
	and allows the scheduler to more efficiently cache scheduling attempts.</li>
	<li>The scheduler no longer uses an internal H2 database for storage.</li>
	<li>There is a new Scheduler UI which, in addition to the facelift, provides the ability to inject your
	own custom UI components.</li>
	</ul>

	<p>Deprecations and removals:</p>

	<ul>
	<li>Removed the deprecated command line argument <code>-zk_use_curator</code>, removing the choice to use the
	legacy ZooKeeper client.</li>
	<li>Removed the <code>rewriteConfigs</code> thrift API call in the scheduler. This was a last-ditch mechanism
	to modify scheduler state on the fly. It was considered extremely risky to use since its
	inception, and is safer to abandon due to its lack of use and likelihood for code rot.</li>
	<li>Removed the Job environment validation from the command line client. Validation was moved to the
	the scheduler side through the <code>allowed_job_environments</code> option. By default allowing any of
	<code>devel</code>, <code>test</code>, <code>production</code>, and any value matching the regular expression <code>staging[0-9]*</code>.</li>
	<li>Removed scheduler command line arguments related to the internal H2 database, which is no longer
	used:

	<ul>
	<li><code>-use_beta_db_task_store</code></li>
	<li><code>-enable_db_metrics</code></li>
	<li><code>-slow_query_log_threshold</code></li>
	<li><code>-db_row_gc_interval</code></li>
	<li><code>-db_lock_timeout</code></li>
	<li><code>-db_max_active_connection_count</code></li>
	<li><code>-db_max_idle_connection_count</code></li>
	<li><code>-snapshot_hydrate_stores</code></li>
	<li><code>-enable_h2_console</code></li>
	</ul></li>
	</ul>

	<p>Full release notes are available in the release
	<a href="https://gitbox.apache.org/repos/asf?p=aurora.git&f=CHANGELOG&hb=rel/0.19.0">CHANGELOG</a>.</p>

	<h2 id="thanks">Thanks</h2>

	<p>Thanks to the 14 contributors who made Apache Aurora 0.19.0 possible:</p>

	<ul>
	<li>Bill Farner</li>
	<li>David McLaughlin</li>
	<li>Derek Slager</li>
	<li>Jordan Ly</li>
	<li>Kai Huang</li>
	<li>Keisuke Nishimoto</li>
	<li>Mauricio Garavaglia</li>
	<li>Renan DelValle</li>
	<li>Reza Motamedi</li>
	<li>Robert Allen</li>
	<li>Ruben D. Porras</li>
	<li>Santhosh Kumar Shanmugham</li>
	<li>Stephan Erb</li>
	<li>Zameer Manji</li>
	</ul>

	</div>
	</div>

	</div>
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	<li><a href="/community/">Mailing Lists</a></li>
	<li><a href="http://issues.apache.org/jira/browse/AURORA">Issue Tracking</a></li>
	<li><a href="/documentation/latest/contributing/">How To Contribute</a></li>
	</ul>
	</div>
	<div class="col-md-2"><h3>The ASF</h3>
	<ul>
	<li><a href="http://www.apache.org/licenses/">License</a></li>
	<li><a href="http://www.apache.org/foundation/sponsorship.html">Sponsorship</a></li>
	<li><a href="http://www.apache.org/foundation/thanks.html">Thanks</a></li>
	<li><a href="http://www.apache.org/security/">Security</a></li>
	</ul>
	</div>
	<div class="col-md-6">
	<p class="disclaimer">© 2014-2017 <a href="http://www.apache.org/">Apache Software Foundation</a>. Licensed under the <a href="http://www.apache.org/licenses/">Apache License v2.0</a>. The <a href="https://www.flickr.com/photos/trondk/12706051375/">Aurora Borealis IX photo</a> displayed on the homepage is available under a <a href="https://creativecommons.org/licenses/by-nc-nd/2.0/">Creative Commons BY-NC-ND 2.0 license</a>. Apache, Apache Aurora, and the Apache feather logo are trademarks of The Apache Software Foundation.</p>
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