2020/05/18/apache-kudu-1-12-0-release.html - kudu-site - Git at Google

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     <h1 class="entry-title">Apache Kudu 1.12.0 released</h1>
     <p class="meta">Posted 18 May 2020 by Hao Hao</p>
   </header>
   <div class="entry-content">
     <p>The Apache Kudu team is happy to announce the release of Kudu 1.12.0!</p>

 <p>The new release adds several new features and improvements, including the
 following:</p>

 <!--more-->

 <ul>
   <li>Kudu now supports native fine-grained authorization via integration with
 Apache Ranger. Kudu may now enforce access control policies defined for
 Kudu tables and columns stored in Ranger. See the
 <a href="/releases/1.12.0/docs/security.html#fine_grained_authz">authorization documentation</a>
 for more details.</li>
   <li>Kudu’s web UI now supports proxying via Apache Knox. Kudu may be deployed
 in a firewalled state behind a Knox Gateway which will forward HTTP requests
 and responses between clients and the Kudu web UI.</li>
   <li>Kudu’s web UI now supports HTTP keep-alive. Operations that access multiple
 URLs will now reuse a single HTTP connection, improving their performance.</li>
   <li>The <code class="language-plaintext highlighter-rouge">kudu tserver quiesce</code> tool is added to quiesce tablet servers. While a
 tablet server is quiescing, it will stop hosting tablet leaders and stop
 serving new scan requests. This can be used to orchestrate a rolling restart
 without stopping on-going Kudu workloads.</li>
   <li>Introduced <code class="language-plaintext highlighter-rouge">auto</code> time source for HybridClock timestamps. With
 <code class="language-plaintext highlighter-rouge">--time_source=auto</code> in AWS and GCE cloud environments, Kudu masters and
 tablet servers use the built-in NTP client synchronized with dedicated NTP
 servers available via host-only networks. With <code class="language-plaintext highlighter-rouge">--time_source=auto</code> in
 environments other than AWS/GCE, Kudu masters and tablet servers rely on
 their local machine’s clock synchronized by NTP. The default setting for
 the HybridClock time source (<code class="language-plaintext highlighter-rouge">--time_source=system</code>) is backward-compatible,
 requiring the local machine’s clock to be synchronized by the kernel’s NTP
 discipline.</li>
   <li>The <code class="language-plaintext highlighter-rouge">kudu cluster rebalance</code> tool now supports moving replicas away from
 specific tablet servers by supplying the <code class="language-plaintext highlighter-rouge">--ignored_tservers</code> and
 <code class="language-plaintext highlighter-rouge">--move_replicas_from_ignored_tservers</code> arguments (see
 <a href="https://issues.apache.org/jira/browse/KUDU-2914">KUDU-2914</a> for more
 details).</li>
   <li>Write Ahead Log file segments and index chunks are now managed by Kudu’s file
 cache. With that, all long-lived file descriptors used by Kudu are managed by
 the file cache, and there’s no longer a need for capacity planning of file
 descriptor usage.</li>
 </ul>

 <p>The above is just a list of the highlights, for a more complete list of new
 features, improvements and fixes please refer to the <a href="/releases/1.12.0/docs/release_notes.html">release
 notes</a>.</p>

 <p>The Apache Kudu project only publishes source code releases. To build Kudu
 1.12.0, follow these steps:</p>

 <ul>
   <li>Download the Kudu <a href="/releases/1.12.0">1.12.0 source release</a></li>
   <li>Follow the instructions in the documentation to build Kudu <a href="/releases/1.12.0/docs/installation.html#build_from_source">1.12.0 from
 source</a></li>
 </ul>

 <p>For your convenience, binary JAR files for the Kudu Java client library, Spark
 DataSource, Flume sink, and other Java integrations are published to the ASF
 Maven repository and are <a href="https://search.maven.org/search?q=g:org.apache.kudu%20AND%20v:1.12.0">now
 available</a>.</p>

 <p>The Python client source is also available on
 <a href="https://pypi.org/project/kudu-python/">PyPI</a>.</p>

 <p>Additionally, experimental Docker images are published to
 <a href="https://hub.docker.com/r/apache/kudu">Docker Hub</a>.</p>

   </div>
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	<header>
	<h1 class="entry-title">Apache Kudu 1.12.0 released</h1>
	<p class="meta">Posted 18 May 2020 by Hao Hao</p>
	</header>
	<div class="entry-content">
	<p>The Apache Kudu team is happy to announce the release of Kudu 1.12.0!</p>

	<p>The new release adds several new features and improvements, including the
	following:</p>

	<!--more-->

	<ul>
	<li>Kudu now supports native fine-grained authorization via integration with
	Apache Ranger. Kudu may now enforce access control policies defined for
	Kudu tables and columns stored in Ranger. See the
	<a href="/releases/1.12.0/docs/security.html#fine_grained_authz">authorization documentation</a>
	for more details.</li>
	<li>Kudu’s web UI now supports proxying via Apache Knox. Kudu may be deployed
	in a firewalled state behind a Knox Gateway which will forward HTTP requests
	and responses between clients and the Kudu web UI.</li>
	<li>Kudu’s web UI now supports HTTP keep-alive. Operations that access multiple
	URLs will now reuse a single HTTP connection, improving their performance.</li>
	<li>The <code class="language-plaintext highlighter-rouge">kudu tserver quiesce</code> tool is added to quiesce tablet servers. While a
	tablet server is quiescing, it will stop hosting tablet leaders and stop
	serving new scan requests. This can be used to orchestrate a rolling restart
	without stopping on-going Kudu workloads.</li>
	<li>Introduced <code class="language-plaintext highlighter-rouge">auto</code> time source for HybridClock timestamps. With
	<code class="language-plaintext highlighter-rouge">--time_source=auto</code> in AWS and GCE cloud environments, Kudu masters and
	tablet servers use the built-in NTP client synchronized with dedicated NTP
	servers available via host-only networks. With <code class="language-plaintext highlighter-rouge">--time_source=auto</code> in
	environments other than AWS/GCE, Kudu masters and tablet servers rely on
	their local machine’s clock synchronized by NTP. The default setting for
	the HybridClock time source (<code class="language-plaintext highlighter-rouge">--time_source=system</code>) is backward-compatible,
	requiring the local machine’s clock to be synchronized by the kernel’s NTP
	discipline.</li>
	<li>The <code class="language-plaintext highlighter-rouge">kudu cluster rebalance</code> tool now supports moving replicas away from
	specific tablet servers by supplying the <code class="language-plaintext highlighter-rouge">--ignored_tservers</code> and
	<code class="language-plaintext highlighter-rouge">--move_replicas_from_ignored_tservers</code> arguments (see
	<a href="https://issues.apache.org/jira/browse/KUDU-2914">KUDU-2914</a> for more
	details).</li>
	<li>Write Ahead Log file segments and index chunks are now managed by Kudu’s file
	cache. With that, all long-lived file descriptors used by Kudu are managed by
	the file cache, and there’s no longer a need for capacity planning of file
	descriptor usage.</li>
	</ul>

	<p>The above is just a list of the highlights, for a more complete list of new
	features, improvements and fixes please refer to the <a href="/releases/1.12.0/docs/release_notes.html">release
	notes</a>.</p>

	<p>The Apache Kudu project only publishes source code releases. To build Kudu
	1.12.0, follow these steps:</p>

	<ul>
	<li>Download the Kudu <a href="/releases/1.12.0">1.12.0 source release</a></li>
	<li>Follow the instructions in the documentation to build Kudu <a href="/releases/1.12.0/docs/installation.html#build_from_source">1.12.0 from
	source</a></li>
	</ul>

	<p>For your convenience, binary JAR files for the Kudu Java client library, Spark
	DataSource, Flume sink, and other Java integrations are published to the ASF
	Maven repository and are <a href="https://search.maven.org/search?q=g:org.apache.kudu%20AND%20v:1.12.0">now
	available</a>.</p>

	<p>The Python client source is also available on
	<a href="https://pypi.org/project/kudu-python/">PyPI</a>.</p>

	<p>Additionally, experimental Docker images are published to
	<a href="https://hub.docker.com/r/apache/kudu">Docker Hub</a>.</p>

	</div>
	</article>


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