2016/05/03/weekly-update.html - kudu-site - Git at Google

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   <header>
     <h1 class="entry-title">Apache Kudu (incubating) Weekly Update May 3, 2016</h1>
     <p class="meta">Posted 03 May 2016 by Todd Lipcon</p>
   </header>
   <div class="entry-content">
     <p>Welcome to the seventh edition of the Kudu Weekly Update. This weekly blog post
 covers ongoing development and news in the Apache Kudu (incubating) project.</p>

 <!--more-->

 <p>If you find this post useful, please let us know by emailing the
 <a href="mailto:user@kudu.incubator.apache.org">kudu-user mailing list</a> or
 tweeting at <a href="https://twitter.com/ApacheKudu">@ApacheKudu</a>. Similarly, if you’re
 aware of some Kudu news we missed, let us know so we can cover it in
 a future post.</p>

 <h2 id="development-discussions-and-code-in-progress">Development discussions and code in progress</h2>

 <ul>
   <li>
     <p>Chris George completed his
 <a href="http://gerrit.cloudera.org:8080/#/c/2848/">improved Spark DataSource implementation for Kudu</a>
 and the new feature will be available in the upcoming 0.9.0 release.
 The improved DataSource supports features such as predicate pushdown
 and Chris reports that it is able to perform subsecond queries on
 millions of rows of data.</p>
   </li>
   <li>
     <p>As mentioned last week, Binglin Chang has been working on and off
 on a new <a href="https://issues.apache.org/jira/browse/KUDU-1235">Get API</a> for
 Kudu. The purpose of this new API is to provide an optimized path for
 looking up a single row.</p>

     <p>In some initial benchmarking of the feature, it became apparent that Kudu’s
 RPC mechanism was a scalability bottleneck on servers with 12 or more CPU
 cores. With some more prototype optimizations of the RPC system, Binglin
 has been able to push approximately 220K random reads per second on a single
 server.</p>

     <p>It may be a few more weeks before this work progresses from prototype stage
 to completion, but initial results are looking quite promising.</p>
   </li>
   <li>
     <p>Discussion continued on the design document for the upcoming
 <a href="http://gerrit.cloudera.org:8080/#/c/2642/">Replay Cache</a> feature. This feature
 was previously introduced in an <a href="http://kudu.apache.org/2016/04/11/weekly-update.html">earlier weekly update
 post</a>
 and development is now fully under way.</p>
   </li>
 </ul>

 <h2 id="on-the-kudu-blog">On the Kudu blog</h2>

 <ul>
   <li>Todd Lipcon wrote a post about <a href="http://kudu.apache.org/2016/04/26/ycsb.html">benchmarking Kudu insert performance with
 YCSB</a>. This post was quite popular,
 so Todd is currently working on a follow-up which will include more experiments
 around Kudu configuration tuning.</li>
 </ul>

 <h2 id="upcoming-talks-and-meetups">Upcoming talks and meetups</h2>

 <ul>
   <li>ApacheCon Big Data will be next week in Vancouver. As always, you can check
 the <a href="http://kudu.apache.org/community.html">Kudu Community page</a> for an up-to-date
 list of conferenace sessions and meetups near you.</li>
 </ul>

   </div>
 </article>


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     <ul>

       <li> <a href="/2020/09/21/apache-kudu-1-13-0-release.html">Apache Kudu 1.13.0 released</a> </li>

       <li> <a href="/2020/08/11/fine-grained-authz-ranger.html">Fine-Grained Authorization with Apache Kudu and Apache Ranger</a> </li>

       <li> <a href="/2020/07/30/building-near-real-time-big-data-lake.html">Building Near Real-time Big Data Lake</a> </li>

       <li> <a href="/2020/05/18/apache-kudu-1-12-0-release.html">Apache Kudu 1.12.0 released</a> </li>

       <li> <a href="/2019/11/20/apache-kudu-1-11-1-release.html">Apache Kudu 1.11.1 released</a> </li>

       <li> <a href="/2019/11/20/apache-kudu-1-10-1-release.html">Apache Kudu 1.10.1 released</a> </li>

       <li> <a href="/2019/07/09/apache-kudu-1-10-0-release.html">Apache Kudu 1.10.0 Released</a> </li>

       <li> <a href="/2019/04/30/location-awareness.html">Location Awareness in Kudu</a> </li>

       <li> <a href="/2019/04/22/fine-grained-authorization-with-apache-kudu-and-impala.html">Fine-Grained Authorization with Apache Kudu and Impala</a> </li>

       <li> <a href="/2019/03/19/testing-apache-kudu-applications-on-the-jvm.html">Testing Apache Kudu Applications on the JVM</a> </li>

       <li> <a href="/2019/03/15/apache-kudu-1-9-0-release.html">Apache Kudu 1.9.0 Released</a> </li>

       <li> <a href="/2019/03/05/transparent-hierarchical-storage-management-with-apache-kudu-and-impala.html">Transparent Hierarchical Storage Management with Apache Kudu and Impala</a> </li>

       <li> <a href="/2018/12/11/call-for-posts.html">Call for Posts</a> </li>

       <li> <a href="/2018/10/26/apache-kudu-1-8-0-released.html">Apache Kudu 1.8.0 Released</a> </li>

       <li> <a href="/2018/09/26/index-skip-scan-optimization-in-kudu.html">Index Skip Scan Optimization in Kudu</a> </li>

     </ul>
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	<div class="col-lg-9">
	<article>
	<header>
	<h1 class="entry-title">Apache Kudu (incubating) Weekly Update May 3, 2016</h1>
	<p class="meta">Posted 03 May 2016 by Todd Lipcon</p>
	</header>
	<div class="entry-content">
	<p>Welcome to the seventh edition of the Kudu Weekly Update. This weekly blog post
	covers ongoing development and news in the Apache Kudu (incubating) project.</p>

	<!--more-->

	<p>If you find this post useful, please let us know by emailing the
	<a href="mailto:user@kudu.incubator.apache.org">kudu-user mailing list</a> or
	tweeting at <a href="https://twitter.com/ApacheKudu">@ApacheKudu</a>. Similarly, if you’re
	aware of some Kudu news we missed, let us know so we can cover it in
	a future post.</p>

	<h2 id="development-discussions-and-code-in-progress">Development discussions and code in progress</h2>

	<ul>
	<li>
	<p>Chris George completed his
	<a href="http://gerrit.cloudera.org:8080/#/c/2848/">improved Spark DataSource implementation for Kudu</a>
	and the new feature will be available in the upcoming 0.9.0 release.
	The improved DataSource supports features such as predicate pushdown
	and Chris reports that it is able to perform subsecond queries on
	millions of rows of data.</p>
	</li>
	<li>
	<p>As mentioned last week, Binglin Chang has been working on and off
	on a new <a href="https://issues.apache.org/jira/browse/KUDU-1235">Get API</a> for
	Kudu. The purpose of this new API is to provide an optimized path for
	looking up a single row.</p>

	<p>In some initial benchmarking of the feature, it became apparent that Kudu’s
	RPC mechanism was a scalability bottleneck on servers with 12 or more CPU
	cores. With some more prototype optimizations of the RPC system, Binglin
	has been able to push approximately 220K random reads per second on a single
	server.</p>

	<p>It may be a few more weeks before this work progresses from prototype stage
	to completion, but initial results are looking quite promising.</p>
	</li>
	<li>
	<p>Discussion continued on the design document for the upcoming
	<a href="http://gerrit.cloudera.org:8080/#/c/2642/">Replay Cache</a> feature. This feature
	was previously introduced in an <a href="http://kudu.apache.org/2016/04/11/weekly-update.html">earlier weekly update
	post</a>
	and development is now fully under way.</p>
	</li>
	</ul>

	<h2 id="on-the-kudu-blog">On the Kudu blog</h2>

	<ul>
	<li>Todd Lipcon wrote a post about <a href="http://kudu.apache.org/2016/04/26/ycsb.html">benchmarking Kudu insert performance with
	YCSB</a>. This post was quite popular,
	so Todd is currently working on a follow-up which will include more experiments
	around Kudu configuration tuning.</li>
	</ul>

	<h2 id="upcoming-talks-and-meetups">Upcoming talks and meetups</h2>

	<ul>
	<li>ApacheCon Big Data will be next week in Vancouver. As always, you can check
	the <a href="http://kudu.apache.org/community.html">Kudu Community page</a> for an up-to-date
	list of conferenace sessions and meetups near you.</li>
	</ul>

	</div>
	</article>


	</div>
	<div class="col-lg-3 recent-posts">
	<h3>Recent posts</h3>
	<ul>

	<li> <a href="/2020/09/21/apache-kudu-1-13-0-release.html">Apache Kudu 1.13.0 released</a> </li>

	<li> <a href="/2020/08/11/fine-grained-authz-ranger.html">Fine-Grained Authorization with Apache Kudu and Apache Ranger</a> </li>

	<li> <a href="/2020/07/30/building-near-real-time-big-data-lake.html">Building Near Real-time Big Data Lake</a> </li>

	<li> <a href="/2020/05/18/apache-kudu-1-12-0-release.html">Apache Kudu 1.12.0 released</a> </li>

	<li> <a href="/2019/11/20/apache-kudu-1-11-1-release.html">Apache Kudu 1.11.1 released</a> </li>

	<li> <a href="/2019/11/20/apache-kudu-1-10-1-release.html">Apache Kudu 1.10.1 released</a> </li>

	<li> <a href="/2019/07/09/apache-kudu-1-10-0-release.html">Apache Kudu 1.10.0 Released</a> </li>

	<li> <a href="/2019/04/30/location-awareness.html">Location Awareness in Kudu</a> </li>

	<li> <a href="/2019/04/22/fine-grained-authorization-with-apache-kudu-and-impala.html">Fine-Grained Authorization with Apache Kudu and Impala</a> </li>

	<li> <a href="/2019/03/19/testing-apache-kudu-applications-on-the-jvm.html">Testing Apache Kudu Applications on the JVM</a> </li>

	<li> <a href="/2019/03/15/apache-kudu-1-9-0-release.html">Apache Kudu 1.9.0 Released</a> </li>

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	<li> <a href="/2018/10/26/apache-kudu-1-8-0-released.html">Apache Kudu 1.8.0 Released</a> </li>

	<li> <a href="/2018/09/26/index-skip-scan-optimization-in-kudu.html">Index Skip Scan Optimization in Kudu</a> </li>

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