<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom"><generator uri="http://jekyllrb.com" version="2.5.3">Jekyll</generator><link href="/feed.xml" rel="self" type="application/atom+xml" /><link href="/" rel="alternate" type="text/html" /><updated>2017-09-13T14:09:28-07:00</updated><id>/</id><entry><title>Apache Kudu 1.5.0 released</title><link href="/2017/09/08/apache-kudu-1-5-0-released.html" rel="alternate" type="text/html" title="Apache Kudu 1.5.0 released" /><published>2017-09-08T00:00:00-07:00</published><updated>2017-09-08T00:00:00-07:00</updated><id>/2017/09/08/apache-kudu-1-5-0-released</id><content type="html" xml:base="/2017/09/08/apache-kudu-1-5-0-released.html">&lt;p&gt;The Apache Kudu team is happy to announce the release of Kudu 1.5.0!&lt;/p&gt;

&lt;p&gt;Apache Kudu 1.5.0 is a minor release which offers several new features,
improvements, optimizations, and bug fixes.&lt;/p&gt;

&lt;p&gt;Highlights include:&lt;/p&gt;

&lt;!--more--&gt;

&lt;ul&gt;
  &lt;li&gt;optimizations to improve write throughput and failover recovery times&lt;/li&gt;
  &lt;li&gt;the Raft consensus implementation has been made more resilient and flexible
through “tombstoned voting”, which allows Kudu to self-heal in more edge-case
scenarios&lt;/li&gt;
  &lt;li&gt;the number of threads used by Kudu servers has been further reduced, with
additional reductions planned for the future&lt;/li&gt;
  &lt;li&gt;a new configuration dashboard on the web UI which provides a high-level
summary of important configuration values&lt;/li&gt;
  &lt;li&gt;a new &lt;code&gt;kudu tablet move&lt;/code&gt; command which moves a tablet replica from one tablet
server to another&lt;/li&gt;
  &lt;li&gt;a new &lt;code&gt;kudu local_replica data_size&lt;/code&gt; command which summarizes the space usage
of a local tablet&lt;/li&gt;
  &lt;li&gt;all on-disk data is now checksummed by default, which provides error detection
for improved confidence when running Kudu on unreliable hardware&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The above list of changes is non-exhaustive. Please refer to the
&lt;a href=&quot;/releases/1.5.0/docs/release_notes.html&quot;&gt;release notes&lt;/a&gt;
for an expanded list of important improvements, bug fixes, and
incompatible changes before upgrading.&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Download the &lt;a href=&quot;/releases/1.5.0/&quot;&gt;Kudu 1.5.0 source release&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.&lt;/li&gt;
&lt;/ul&gt;</content><author><name>Dan Burkert</name></author><summary>The Apache Kudu team is happy to announce the release of Kudu 1.5.0!

Apache Kudu 1.5.0 is a minor release which offers several new features,
improvements, optimizations, and bug fixes.

Highlights include:</summary></entry><entry><title>Apache Kudu 1.4.0 released</title><link href="/2017/06/13/apache-kudu-1-4-0-released.html" rel="alternate" type="text/html" title="Apache Kudu 1.4.0 released" /><published>2017-06-13T00:00:00-07:00</published><updated>2017-06-13T00:00:00-07:00</updated><id>/2017/06/13/apache-kudu-1-4-0-released</id><content type="html" xml:base="/2017/06/13/apache-kudu-1-4-0-released.html">&lt;p&gt;The Apache Kudu team is happy to announce the release of Kudu 1.4.0!&lt;/p&gt;

&lt;p&gt;Apache Kudu 1.4.0 is a minor release which offers several new features,
improvements, optimizations, and bug fixes.&lt;/p&gt;

&lt;p&gt;Highlights include:&lt;/p&gt;

&lt;!--more--&gt;

&lt;ul&gt;
  &lt;li&gt;ability to alter storage attributes and default values for existing columns&lt;/li&gt;
  &lt;li&gt;a new C++ client API to efficiently map primary keys to their associated partitions
and hosts&lt;/li&gt;
  &lt;li&gt;support for long-running fault-tolerant scans in the Java client&lt;/li&gt;
  &lt;li&gt;a new &lt;code&gt;kudu fs check&lt;/code&gt; command which can perform offline consistency checks
and repairs on the local on-disk storage of a Tablet Server or Master.&lt;/li&gt;
  &lt;li&gt;many optimizations to reduce disk space usage, improve write throughput,
and improve throughput of background maintenance operations.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The above list of changes is non-exhaustive. Please refer to the
&lt;a href=&quot;/releases/1.4.0/docs/release_notes.html&quot;&gt;release notes&lt;/a&gt;
for an expanded list of important improvements, bug fixes, and
incompatible changes before upgrading.&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Download the &lt;a href=&quot;/releases/1.4.0/&quot;&gt;Kudu 1.4.0 source release&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.&lt;/li&gt;
&lt;/ul&gt;</content><author><name>Todd Lipcon</name></author><summary>The Apache Kudu team is happy to announce the release of Kudu 1.4.0!

Apache Kudu 1.4.0 is a minor release which offers several new features,
improvements, optimizations, and bug fixes.

Highlights include:</summary></entry><entry><title>Apache Kudu 1.3.1 released</title><link href="/2017/04/19/apache-kudu-1-3-1-released.html" rel="alternate" type="text/html" title="Apache Kudu 1.3.1 released" /><published>2017-04-19T00:00:00-07:00</published><updated>2017-04-19T00:00:00-07:00</updated><id>/2017/04/19/apache-kudu-1-3-1-released</id><content type="html" xml:base="/2017/04/19/apache-kudu-1-3-1-released.html">&lt;p&gt;The Apache Kudu team is happy to announce the release of Kudu 1.3.1!&lt;/p&gt;

&lt;p&gt;Apache Kudu 1.3.1 is a bug fix release which fixes critical issues discovered
in Apache Kudu 1.3.0. In particular, this fixes a bug in which data could be
incorrectly deleted after certain sequences of node failures. Several other
bugs are also fixed. See the release notes for details.&lt;/p&gt;

&lt;p&gt;Users of Kudu 1.3.0 are encouraged to upgrade to 1.3.1 immediately.&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Download the &lt;a href=&quot;/releases/1.3.1/&quot;&gt;Kudu 1.3.1 source release&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.&lt;/li&gt;
&lt;/ul&gt;</content><author><name>Todd Lipcon</name></author><summary>The Apache Kudu team is happy to announce the release of Kudu 1.3.1!

Apache Kudu 1.3.1 is a bug fix release which fixes critical issues discovered
in Apache Kudu 1.3.0. In particular, this fixes a bug in which data could be
incorrectly deleted after certain sequences of node failures. Several other
bugs are also fixed. See the release notes for details.

Users of Kudu 1.3.0 are encouraged to upgrade to 1.3.1 immediately.


  Download the Kudu 1.3.1 source release
  Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.</summary></entry><entry><title>Apache Kudu 1.3.0 released</title><link href="/2017/03/20/apache-kudu-1-3-0-released.html" rel="alternate" type="text/html" title="Apache Kudu 1.3.0 released" /><published>2017-03-20T00:00:00-07:00</published><updated>2017-03-20T00:00:00-07:00</updated><id>/2017/03/20/apache-kudu-1-3-0-released</id><content type="html" xml:base="/2017/03/20/apache-kudu-1-3-0-released.html">&lt;p&gt;The Apache Kudu team is happy to announce the release of Kudu 1.3.0!&lt;/p&gt;

&lt;p&gt;Apache Kudu 1.3 is a minor release which adds various new features,
improvements, bug fixes, and optimizations on top of Kudu
1.2. Highlights include:&lt;/p&gt;

&lt;!--more--&gt;

&lt;ul&gt;
  &lt;li&gt;significantly improved support for security, including Kerberos
authentication, TLS encryption, and coarse-grained (cluster-level)
authorization&lt;/li&gt;
  &lt;li&gt;automatic garbage collection of historical versions of data&lt;/li&gt;
  &lt;li&gt;lower space consumption and better performance in default
configurations.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The above list of changes is non-exhaustive. Please refer to the
&lt;a href=&quot;/releases/1.3.0/docs/release_notes.html&quot;&gt;release notes&lt;/a&gt;
for an expanded list of important improvements, bug fixes, and
incompatible changes before upgrading.&lt;/p&gt;

&lt;p&gt;Thanks to the 25 developers who contributed code or documentation to
this release!&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Download the &lt;a href=&quot;/releases/1.3.0/&quot;&gt;Kudu 1.3.0 source release&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.&lt;/li&gt;
&lt;/ul&gt;</content><author><name>Todd Lipcon</name></author><summary>The Apache Kudu team is happy to announce the release of Kudu 1.3.0!

Apache Kudu 1.3 is a minor release which adds various new features,
improvements, bug fixes, and optimizations on top of Kudu
1.2. Highlights include:</summary></entry><entry><title>Apache Kudu 1.2.0 released</title><link href="/2017/01/20/apache-kudu-1-2-0-released.html" rel="alternate" type="text/html" title="Apache Kudu 1.2.0 released" /><published>2017-01-20T00:00:00-08:00</published><updated>2017-01-20T00:00:00-08:00</updated><id>/2017/01/20/apache-kudu-1-2-0-released</id><content type="html" xml:base="/2017/01/20/apache-kudu-1-2-0-released.html">&lt;p&gt;The Apache Kudu team is happy to announce the release of Kudu 1.2.0!&lt;/p&gt;

&lt;p&gt;The new release adds several new features and improvements, including:&lt;/p&gt;

&lt;!--more--&gt;

&lt;ul&gt;
  &lt;li&gt;User data such as row contents is now redacted from logging statements.&lt;/li&gt;
  &lt;li&gt;Kudu’s ability to provide strong consistency guarantees has been substantially improved.&lt;/li&gt;
  &lt;li&gt;Various performance improvements in metadata management as well as optimizations for BITSHUFFLE encoding on AVX2-capable hosts.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Additionally, 1.2.0 fixes a number of important bugs, including:&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Kudu now automatically limits its usage of file descriptors, preventing crashes due to ulimit exhaustion.&lt;/li&gt;
  &lt;li&gt;Fixed a long-standing issue which could cause ext4 file system corruption on RHEL 6.&lt;/li&gt;
  &lt;li&gt;Fixed a disk space leak.&lt;/li&gt;
  &lt;li&gt;Several fixes for correctness in various edge cases.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;The above list of changes is non-exhaustive. Please refer to the
&lt;a href=&quot;/releases/1.2.0/docs/release_notes.html&quot;&gt;release notes&lt;/a&gt;
for an expanded list of important improvements, bug fixes, and
incompatible changes before upgrading.&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;Download the &lt;a href=&quot;/releases/1.2.0/&quot;&gt;Kudu 1.2.0 source release&lt;/a&gt;&lt;/li&gt;
  &lt;li&gt;Convenience binary artifacts for the Java client and various Java
integrations (eg Spark, Flume) are also now available via the ASF Maven
repository.&lt;/li&gt;
&lt;/ul&gt;</content><author><name>Todd Lipcon</name></author><summary>The Apache Kudu team is happy to announce the release of Kudu 1.2.0!

The new release adds several new features and improvements, including:</summary></entry><entry><title>Apache Kudu Weekly Update November 15th, 2016</title><link href="/2016/11/15/weekly-update.html" rel="alternate" type="text/html" title="Apache Kudu Weekly Update November 15th, 2016" /><published>2016-11-15T00:00:00-08:00</published><updated>2016-11-15T00:00:00-08:00</updated><id>/2016/11/15/weekly-update</id><content type="html" xml:base="/2016/11/15/weekly-update.html">&lt;p&gt;Welcome to the twenty-third edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.&lt;/p&gt;

&lt;!--more--&gt;

&lt;h2 id=&quot;project-news&quot;&gt;Project news&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;The first release candidate for Kudu 1.1.0 is &lt;a href=&quot;http://mail-archives.apache.org/mod_mbox/kudu-dev/201611.mbox/%3CCADY20s7ZKZkPmUEcTexW%3D%2B_%2BLnDY2hABZg0-UZD3jvWAs9-pog%40mail.gmail.com%3E&quot;&gt;now available&lt;/a&gt;.&lt;/p&gt;

    &lt;dl&gt;
      &lt;dt&gt;Noteworthy new features/improvements:&lt;/dt&gt;
      &lt;dd&gt;
        &lt;ul&gt;
          &lt;li&gt;The Python client has been brought to feature parity with the C++ and Java clients.&lt;/li&gt;
          &lt;li&gt;IN LIST predicates.&lt;/li&gt;
          &lt;li&gt;Java client now features client-side tracing.&lt;/li&gt;
          &lt;li&gt;Kudu now publishes jar files for Spark 2.0 compiled with Scala 2.11.&lt;/li&gt;
          &lt;li&gt;Kudu’s Raft implementation now features pre-elections. In our tests this has greatly improved stability.&lt;/li&gt;
        &lt;/ul&gt;
      &lt;/dd&gt;
    &lt;/dl&gt;

    &lt;p&gt;Community developers and users are encouraged to download the source
tarball and vote on the release.&lt;/p&gt;

    &lt;p&gt;For more information on what’s new, check out the
&lt;a href=&quot;https://github.com/apache/kudu/blob/branch-1.1.x/docs/release_notes.adoc&quot;&gt;release notes&lt;/a&gt;.
&lt;em&gt;Note:&lt;/em&gt; some links from these in-progress release notes will not be live until the
release itself is published.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;On November 7th, the Kudu PMC announced that Jordan Birdsell, from State Farm, had been voted
in as a new committer and PMC member.&lt;/p&gt;

    &lt;p&gt;Jordan’s contributions include extensive work on the python client, throwing it some much needed
love, and bringing it to feature parity with the other clients.&lt;/p&gt;

    &lt;p&gt;Besides his extensive code contributions Jordan has also been active in reviewing other
developer’s patches and helping the community in general, on slack and other channels.&lt;/p&gt;

    &lt;p&gt;Jordan has been doing great work and the Kudu PMC was pleased to recognize his contributions
with committership.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Mike Percy will be presenting Kudu Wednesday 16th November at &lt;a href=&quot;https://apachebigdataeu2016.sched.org/&quot;&gt;Apache Big Data Europe, in Seville&lt;/a&gt;.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Congratulations to Haijie Hong for his &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4822/&quot;&gt;first contribution to Kudu!&lt;/a&gt;.
Haijie fixed some edge cases in BitWriter that were blocking RLE usage for 64 bit types.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Congratulations to Maxim Smyatkin for his &lt;a href=&quot;https://gerrit.cloudera.org/#/q/Maxim&quot;&gt;first contributions to Kudu!&lt;/a&gt;.
Maxim has contributed several patches helping with debug and cleanup.&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;h2 id=&quot;development-discussions-and-code-in-progress&quot;&gt;Development discussions and code in progress&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;A lot of progress has been done towards the goals that were set in the scope docs introduced in
the last couple of posts. Specifically:&lt;/p&gt;

    &lt;ul&gt;
      &lt;li&gt;
        &lt;p&gt;Dan Burkert, Todd Lipcon and Alexey Serbin have doubled down on the security effort. They have
been working on enabling Kerberos authentication and rpc encryption. The &lt;a href=&quot;https://docs.google.com/document/d/1cPNDTpVkIUo676RlszpTF1gHZ8l0TdbB7zFBAuOuYUw/edit#heading=h.gsibhnd5dyem&quot;&gt;security scope doc&lt;/a&gt;
has been updated with the latest plans for security and many patches have been merged already.&lt;/p&gt;
      &lt;/li&gt;
      &lt;li&gt;
        &lt;p&gt;David Alves has continued the work on &lt;a href=&quot;https://s.apache.org/7VCo&quot;&gt;consistency&lt;/a&gt;. Up for review
and partially pushed is a patch series to address row history loss if a row is deleted and then
re-inserted. Also in progress is work to make sure that scans at a snapshot from followers
always return same data as if they were executed on the leader. This helps with Read-Your-Writes
when reading from lagging replicas.&lt;/p&gt;
      &lt;/li&gt;
      &lt;li&gt;
        &lt;p&gt;Adar Dembo has been making good progress &lt;a href=&quot;https://s.apache.org/uOOt&quot;&gt;addressing issues seen with the LogBlockManager&lt;/a&gt;.
A series of patches have been merged with various fixes to block managers in general and to the
log block manager in particular.&lt;/p&gt;
      &lt;/li&gt;
      &lt;li&gt;
        &lt;p&gt;Dinesh Bhat has been working on improving the manual recovery tools for Kudu. Namely, he has
added a tool to force a remote replica copy to a destination server, and a tool to delete a
local replica of a tablet. The latter is useful when a tablet cannot come up due to bad state.&lt;/p&gt;
      &lt;/li&gt;
      &lt;li&gt;
        &lt;p&gt;Jean-Daniel Cryans has implemented RPC tracing for the java client, greatly improving
debuggability. JD also has added ReplicaSelection to the java client, allowing to perform
scans on replicas other than the leader, which should be of great help for load-balancing.&lt;/p&gt;
      &lt;/li&gt;
      &lt;li&gt;
        &lt;p&gt;Besides the feature parity contributions, Jordan Birdsell has laid out a
&lt;a href=&quot;http://mail-archives.apache.org/mod_mbox/kudu-dev/201611.mbox/%3CCAGaaj_VKfB4mhu6eExHCWo0%3D6Qd0HFWy7bg9e39JgOaFPGJ1nQ%40mail.gmail.com%3E&quot;&gt;roadmap for Python client work&lt;/a&gt;
for the 1.2 release. Feedback from other Python client users is certainly appreciated.&lt;/p&gt;
      &lt;/li&gt;
    &lt;/ul&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Want to learn more about a specific topic from this blog post? Shoot an email to the
&lt;a href=&quot;&amp;#109;&amp;#097;&amp;#105;&amp;#108;&amp;#116;&amp;#111;:&amp;#117;&amp;#115;&amp;#101;&amp;#114;&amp;#064;&amp;#107;&amp;#117;&amp;#100;&amp;#117;&amp;#046;&amp;#097;&amp;#112;&amp;#097;&amp;#099;&amp;#104;&amp;#101;&amp;#046;&amp;#111;&amp;#114;&amp;#103;&quot;&gt;kudu-user mailing list&lt;/a&gt; or
tweet at &lt;a href=&quot;https://twitter.com/ApacheKudu&quot;&gt;@ApacheKudu&lt;/a&gt;. Similarly, if you’re
aware of some Kudu news we missed, let us know so we can cover it in
a future post.&lt;/p&gt;</content><author><name>David Alves</name></author><summary>Welcome to the twenty-third edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.</summary></entry><entry><title>Apache Kudu Weekly Update November 1st, 2016</title><link href="/2016/11/01/weekly-update.html" rel="alternate" type="text/html" title="Apache Kudu Weekly Update November 1st, 2016" /><published>2016-11-01T00:00:00-07:00</published><updated>2016-11-01T00:00:00-07:00</updated><id>/2016/11/01/weekly-update</id><content type="html" xml:base="/2016/11/01/weekly-update.html">&lt;p&gt;Welcome to the twenty-third edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.&lt;/p&gt;

&lt;!--more--&gt;

&lt;h2 id=&quot;development-discussions-and-code-in-progress&quot;&gt;Development discussions and code in progress&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;Dan Burkert committed a piece of test infrastructure
called “MiniKDC” for both Java and C++. The MiniKDC sets up a short-lived
Kerberos environment in the context of a single test case, making it
easy to build tests of security features without requiring any special
infrastructure on the part of the developer.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Todd Lipcon added support for Kerberos (GSSAPI) support to Kudu’s
RPC system, allowing servers to authenticate the user principal of
any inbound RPC connection. He also integrated Kudu’s C++ “MiniCluster”
test infrastructure to allow starting a Kerberized cluster in the
context of a test.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Dan, Todd, and Alexey Serbin have been iterating on a more detailed
&lt;a href=&quot;https://docs.google.com/document/d/1Yu4iuIhaERwug1vS95yWDd_WzrNRIKvvVGUb31y-_mY/edit#&quot;&gt;design doc&lt;/a&gt;
for authentication in Kudu. This doc outlines the various non-Kerberos
methods that Kudu will use for authentication as well as how TLS will
be used to encrypt and authenticate some types of connections.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Part of the above design document involves Kudu servers generating and
signing X509 certificates on the fly to use for authenticated TLS.
Alexey has been working on a large &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4799/&quot;&gt;patch&lt;/a&gt;
which uses OpenSSL to provide key generation and signing functionality.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Sailesh Mukil has been working on adding support for
&lt;a href=&quot;https://gerrit.cloudera.org/#/c/4789/&quot;&gt;TLS in Kudu’s RPC system&lt;/a&gt;. The TLS
support is a critical part of the overall design for security. This patch
has gone through several rounds of review and nearing completion.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;JD Cryans has been continuing to improve the Java client, including adding
the ability to specify that the client would like to read the “closest”
replica (e.g. reading from a local copy if possible). Additionally,
JD has been working on some basic &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4781/&quot;&gt;tracing support&lt;/a&gt;
within the Java client. This tracing aims to make timeouts easier to understand
and diagnose.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Jordan Birdsell committed 9 more patches to the Python client, bringing it
very close to feature parity with C++. Jordan has a few more patches in flight
which should complete this long-running effort.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Congrats to new contributor Haijie Hong who committed his first patch this week.
Haijie added support for &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4822/&quot;&gt;run-length encoding 64-bit integers&lt;/a&gt;.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Will Berkeley picked back up work on &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4310/&quot;&gt;improving the capability of ALTER
TABLE&lt;/a&gt;. His in-flight patch adds support
for changing the default value of a column as well as changing storage attributes
such as desired block size, encoding, and compression.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Adar Dembo has been working on a series of patches for the Block Manager, the
component of Kudu which is responsible for laying out blocks on the local
file system. His patch series consists of a number of refactors to clean up
and improve the code structure, followed by an &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4848/&quot;&gt;improvement to reduce file system
fragmentation&lt;/a&gt;.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;David Alves has been working on a &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4819/&quot;&gt;patch series&lt;/a&gt;
which adds support for storing ‘REINSERT’ deltas on disk. These records are
generated if a user inserts a row, deletes it, and inserts a new row with the
same primary key. Current versions of Kudu lose track of the history of the
prior version of the row in this scenario, which prevents correct snapshot reads.
David’s patch series fixes this.&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Want to learn more about a specific topic from this blog post? Shoot an email to the
&lt;a href=&quot;&amp;#109;&amp;#097;&amp;#105;&amp;#108;&amp;#116;&amp;#111;:&amp;#117;&amp;#115;&amp;#101;&amp;#114;&amp;#064;&amp;#107;&amp;#117;&amp;#100;&amp;#117;&amp;#046;&amp;#097;&amp;#112;&amp;#097;&amp;#099;&amp;#104;&amp;#101;&amp;#046;&amp;#111;&amp;#114;&amp;#103;&quot;&gt;kudu-user mailing list&lt;/a&gt; or
tweet at &lt;a href=&quot;https://twitter.com/ApacheKudu&quot;&gt;@ApacheKudu&lt;/a&gt;. Similarly, if you’re
aware of some Kudu news we missed, let us know so we can cover it in
a future post.&lt;/p&gt;</content><author><name>Todd Lipcon</name></author><summary>Welcome to the twenty-third edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.</summary></entry><entry><title>Apache Kudu Weekly Update October 20th, 2016</title><link href="/2016/10/20/weekly-update.html" rel="alternate" type="text/html" title="Apache Kudu Weekly Update October 20th, 2016" /><published>2016-10-20T00:00:00-07:00</published><updated>2016-10-20T00:00:00-07:00</updated><id>/2016/10/20/weekly-update</id><content type="html" xml:base="/2016/10/20/weekly-update.html">&lt;p&gt;Welcome to the twenty-second edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.&lt;/p&gt;

&lt;!--more--&gt;

&lt;h2 id=&quot;project-news&quot;&gt;Project news&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;Kudu 1.0.1 was &lt;a href=&quot;http://mail-archives.apache.org/mod_mbox/kudu-user/201610.mbox/%3CCALo2W-UgTa%2BX15_q_9FQpRUPWN53eyqFS10C5MXK1KpsFgqcyQ%40mail.gmail.com%3E&quot;&gt;released&lt;/a&gt;
on October 11th. This is a bug fix release which fixes several bugs found
in 1.0.0. See the &lt;a href=&quot;http://kudu.apache.org/releases/1.0.1/docs/release_notes.html&quot;&gt;Kudu 1.0.1 release notes&lt;/a&gt;
for more details.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Todd Lipcon has proposed a &lt;a href=&quot;https://lists.apache.org/thread.html/4c94d313e28381bb107682ffaf43adfd38bd7fb3b03c98e3c86c52e2@%3Cdev.kudu.apache.org%3E&quot;&gt;release plan&lt;/a&gt;
for the next few months. The proposal is to have a 1.1 release in mid-November and
a 1.2 release in mid-January. These would be time-based releases rather than
gated on any particular feature scope; however, it’s anticipated that several
new features and improvements will be ready in time for these releases.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Happy fourth birthday to the Kudu project! The initial commit was made
on October 11th, 2012! Since then we’ve had 4888 more commits by 60
authors!&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;h2 id=&quot;development-discussions-and-code-in-progress&quot;&gt;Development discussions and code in progress&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;As mentioned last week, a lot of contributors have been collaborating on
design documents for upcoming work. Here’s the complete list of in-flight
documents, along with the primary authors of these docs:
    &lt;ul&gt;
      &lt;li&gt;&lt;a href=&quot;https://docs.google.com/document/d/1cPNDTpVkIUo676RlszpTF1gHZ8l0TdbB7zFBAuOuYUw/edit#heading=h.gsibhnd5dyem&quot;&gt;Security features&lt;/a&gt; (Todd Lipcon)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://goo.gl/wP5BJb&quot;&gt;Improved disk-failure handling&lt;/a&gt; (Dinesh Bhat)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/7K48&quot;&gt;Tools for manual recovery from corruption&lt;/a&gt; (Mike Percy and Dinesh Bhat)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/uOOt&quot;&gt;Addressing issues seen with the LogBlockManager&lt;/a&gt; (Adar Dembo)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/7VCo&quot;&gt;Providing proper snapshot/serializable consistency&lt;/a&gt; (David Alves)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/ARUP&quot;&gt;Improving re-replication of under-replicated tablets&lt;/a&gt; (Mike Percy)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://docs.google.com/document/d/1066W63e2YUTNnecmfRwgAHghBPnL1Pte_gJYAaZ_Bjo/edit&quot;&gt;Avoiding Raft election storms&lt;/a&gt; (Todd Lipcon)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/kudu-backup-scope&quot;&gt;Backup and bulk load&lt;/a&gt; (Dan Burkert)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/SM6V&quot;&gt;Improving diagnosability of client errors&lt;/a&gt; (Alexey Serbin)&lt;/li&gt;
    &lt;/ul&gt;

    &lt;p&gt;In many cases, work is now progressing on implementation of these ideas,
but these are considered living documents. It’s not too late to add your
comments or volunteer to help out.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;JD Cryans has been working on cleaning up the Java client. Several complex pieces
of code were completely removed, and other parts were refactored into new
standalone classes for better modularity. Along the way, JD also
&lt;a href=&quot;http://gerrit.cloudera.org:8080/4706&quot;&gt;reduced lock contention&lt;/a&gt; on a frequently-accessed
data structure.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Todd Lipcon implemented and committed Raft “pre-elections” as described in the
[election storm mitigation design document]((https://docs.google.com/document/d/1066W63e2YUTNnecmfRwgAHghBPnL1Pte_gJYAaZ_Bjo/edit).
Initial experiments, detailed in the document, indicate that this will substantially
improve leader stability on clusters with overloaded disks and lots of tablets.&lt;/p&gt;

    &lt;p&gt;Following this patch, Todd worked on some cleanup and refactor of the Consensus
implementation, removing a bunch of dead code and splitting some classes up
into smaller pieces. This is preparing for some improvements in locking
granularity also described in the same document.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Dan Burkert and Todd Lipcon have started submitting patches to integrate Kerberos
authentication with Kudu’s RPC system. Dan posted a
&lt;a href=&quot;https://gerrit.cloudera.org/#/c/4752/&quot;&gt;patch&lt;/a&gt; which adds “MiniKDC”, some test
infrastructure for starting and stopping a standalone Kerberos service in
the context of a test. Todd worked on adding
&lt;a href=&quot;https://gerrit.cloudera.org/#/c/4763/&quot;&gt;support for Kerberos authentication&lt;/a&gt;
during RPC negotiation.&lt;/p&gt;

    &lt;p&gt;These patches are just the beginning of the security work, but form an important
base to build on top of. The design uses Kerberos both as a mechanism to authenticate
clients as well as a way to mutually authenticate tablet servers with the master.&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Want to learn more about a specific topic from this blog post? Shoot an email to the
&lt;a href=&quot;&amp;#109;&amp;#097;&amp;#105;&amp;#108;&amp;#116;&amp;#111;:&amp;#117;&amp;#115;&amp;#101;&amp;#114;&amp;#064;&amp;#107;&amp;#117;&amp;#100;&amp;#117;&amp;#046;&amp;#097;&amp;#112;&amp;#097;&amp;#099;&amp;#104;&amp;#101;&amp;#046;&amp;#111;&amp;#114;&amp;#103;&quot;&gt;kudu-user mailing list&lt;/a&gt; or
tweet at &lt;a href=&quot;https://twitter.com/ApacheKudu&quot;&gt;@ApacheKudu&lt;/a&gt;. Similarly, if you’re
aware of some Kudu news we missed, let us know so we can cover it in
a future post.&lt;/p&gt;</content><author><name>Todd Lipcon</name></author><summary>Welcome to the twenty-second edition of the Kudu Weekly Update. This weekly blog post
covers ongoing development and news in the Apache Kudu project.</summary></entry><entry><title>Apache Kudu Weekly Update October 11th, 2016</title><link href="/2016/10/11/weekly-update.html" rel="alternate" type="text/html" title="Apache Kudu Weekly Update October 11th, 2016" /><published>2016-10-11T00:00:00-07:00</published><updated>2016-10-11T00:00:00-07:00</updated><id>/2016/10/11/weekly-update</id><content type="html" xml:base="/2016/10/11/weekly-update.html">&lt;p&gt;Welcome to the twenty-first edition of the Kudu Weekly Update. Astute
readers will notice that the weekly blog posts have been not-so-weekly
of late – in fact, it has been nearly two months since the previous post
as I and others have focused on releases, conferences, etc.&lt;/p&gt;

&lt;p&gt;So, rather than covering just this past week, this post will cover highlights
of the progress since the 1.0 release in mid-September. If you’re interested
in learning about progress prior to that release, check the
&lt;a href=&quot;http://kudu.apache.org/releases/1.0.0/docs/release_notes.html&quot;&gt;release notes&lt;/a&gt;.&lt;/p&gt;

&lt;!--more--&gt;

&lt;h2 id=&quot;project-news&quot;&gt;Project news&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;On September 12th, the Kudu PMC announced that Alexey Serbin and Will
Berkeley had been voted as new committers and PMC members.&lt;/p&gt;

    &lt;p&gt;Alexey’s contributions prior to committership included
&lt;a href=&quot;https://gerrit.cloudera.org/#/c/3952/&quot;&gt;AUTO_FLUSH_BACKGROUND&lt;/a&gt; support
in C++ as well as &lt;a href=&quot;http://kudu.apache.org/apidocs/&quot;&gt;API documentation&lt;/a&gt;
for the C++ client API.&lt;/p&gt;

    &lt;p&gt;Will’s contributions include several fixes to the web UIs, large
improvements the Flume integration, and a lot of good work
burning down long-standing bugs.&lt;/p&gt;

    &lt;p&gt;Both contributors were “acting the part” and the PMC was pleased to
recognize their contributions with committership.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Kudu 1.0.0 was &lt;a href=&quot;https://kudu.apache.org/2016/09/20/apache-kudu-1-0-0-released.html&quot;&gt;released&lt;/a&gt;
on September 19th. Most community members have upgraded by this point
and have been reporting improved stability and performance.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Dan Burkert has been managing a Kudu 1.0.1 release to address a few
important bugs discovered since 1.0.0. The vote passed on Monday
afternoon, so the release should be made officially available
later this week.&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;h2 id=&quot;development-discussions-and-code-in-progress&quot;&gt;Development discussions and code in progress&lt;/h2&gt;

&lt;ul&gt;
  &lt;li&gt;After the 1.0 release, many contributors have gone into a design phase
for upcoming work. Over the last couple of weeks, developers have posted
scoping and design documents for topics including:
    &lt;ul&gt;
      &lt;li&gt;&lt;a href=&quot;https://docs.google.com/document/d/1cPNDTpVkIUo676RlszpTF1gHZ8l0TdbB7zFBAuOuYUw/edit#heading=h.gsibhnd5dyem&quot;&gt;Security features&lt;/a&gt; (Todd Lipcon)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://goo.gl/wP5BJb&quot;&gt;Improved disk-failure handling&lt;/a&gt; (Dinesh Bhat)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/7K48&quot;&gt;Tools for manual recovery from corruption&lt;/a&gt; (Mike Percy and Dinesh Bhat)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/uOOt&quot;&gt;Addressing issues seen with the LogBlockManager&lt;/a&gt; (Adar Dembo)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/7VCo&quot;&gt;Providing proper snapshot/serializable consistency&lt;/a&gt; (David Alves)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://s.apache.org/ARUP&quot;&gt;Improving re-replication of under-replicated tablets&lt;/a&gt; (Mike Percy)&lt;/li&gt;
      &lt;li&gt;&lt;a href=&quot;https://docs.google.com/document/d/1066W63e2YUTNnecmfRwgAHghBPnL1Pte_gJYAaZ_Bjo/edit&quot;&gt;Avoiding Raft election storms&lt;/a&gt; (Todd Lipcon)&lt;/li&gt;
    &lt;/ul&gt;

    &lt;p&gt;The development community has no particular rule that all work must be
accompanied by such a document, but in the past they have proven useful
for fleshing out ideas around a design before beginning implementation.
As Kudu matures, we can probably expect to see more of this kind of planning
and design discussion.&lt;/p&gt;

    &lt;p&gt;If any of the above work areas sounds interesting to you, please take a
look and leave your comments! Similarly, if you are interested in contributing
in any of these areas, please feel free to volunteer on the mailing list.
Help of all kinds (coding, documentation, testing, etc) is welcomed.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;Adar Dembo spent a chunk of time re-working the &lt;code&gt;thirdparty&lt;/code&gt; directory
that contains most of Kudu’s native dependencies. The major resulting
changes are:
    &lt;ul&gt;
      &lt;li&gt;Build directories are now cleanly isolated from source directories,
improving cleanliness of re-builds.&lt;/li&gt;
      &lt;li&gt;ThreadSanitizer (TSAN) builds now use &lt;code&gt;libc++&lt;/code&gt; instead of &lt;code&gt;libstdcxx&lt;/code&gt;
for C++ library support. The &lt;code&gt;libc++&lt;/code&gt; library has better support for
sanitizers, is easier to build in isolation, and solves some compatibility
issues that Adar was facing with GCC 5 on Ubuntu Xenial.&lt;/li&gt;
      &lt;li&gt;All of the thirdparty dependencies now build with TSAN instrumentation,
which improves our coverage of this very effective tooling.&lt;/li&gt;
    &lt;/ul&gt;

    &lt;p&gt;The impact to most developers is that, if you have an old source checkout,
it’s highly likely you will need to clean and re-build the thirdparty
directory.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;Many contributors spent time in recent weeks trying to address the
flakiness of various test cases. The Kudu project uses a
&lt;a href=&quot;http://dist-test.cloudera.org:8080/&quot;&gt;dashboard&lt;/a&gt; to track the flakiness
of each test case, and &lt;a href=&quot;http://dist-test.cloudera.org/&quot;&gt;distributed test infrastructure&lt;/a&gt;
to facilitate reproducing test flakes.    &lt;!-- spaces cause line break --&gt;
As might be expected, some of the flaky tests were due to bugs or
timing assumptions in the tests themselves. However, this effort
also identified several real bugs:
    &lt;ul&gt;
      &lt;li&gt;A &lt;a href=&quot;http://gerrit.cloudera.org:8080/4570]&quot;&gt;tight retry loop&lt;/a&gt; in the
Java client.&lt;/li&gt;
      &lt;li&gt;A &lt;a href=&quot;http://gerrit.cloudera.org:8080/4395&quot;&gt;memory leak&lt;/a&gt; due to circular
references in the C++ client.&lt;/li&gt;
      &lt;li&gt;A &lt;a href=&quot;http://gerrit.cloudera.org:8080/4551&quot;&gt;crash&lt;/a&gt; which could affect
tools used for problem diagnosis.&lt;/li&gt;
      &lt;li&gt;A &lt;a href=&quot;http://gerrit.cloudera.org:8080/4409&quot;&gt;divergence bug&lt;/a&gt; in Raft consensus
under particularly torturous scenarios.&lt;/li&gt;
      &lt;li&gt;A potential &lt;a href=&quot;http://gerrit.cloudera.org:8080/4394&quot;&gt;crash during tablet server startup&lt;/a&gt;.&lt;/li&gt;
      &lt;li&gt;A case in which &lt;a href=&quot;http://gerrit.cloudera.org:8080/4626&quot;&gt;thread startup could be delayed&lt;/a&gt;
by built-in monitoring code.&lt;/li&gt;
    &lt;/ul&gt;

    &lt;p&gt;As a result of these efforts, the failure rate of these flaky tests has
decreased significantly and the stability of Kudu releases continues
to increase.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Dan Burkert picked up work originally started by Sameer Abhyankar on
&lt;a href=&quot;https://issues.apache.org/jira/browse/KUDU-1363&quot;&gt;KUDU-1363&lt;/a&gt;, which adds
support for adding &lt;code&gt;IN (...)&lt;/code&gt; predicates to scanners. Dan committed the
&lt;a href=&quot;http://gerrit.cloudera.org:8080/2986&quot;&gt;main patch&lt;/a&gt; as well as corresponding
&lt;a href=&quot;http://gerrit.cloudera.org:8080/4530&quot;&gt;support in the Java client&lt;/a&gt;.
Jordan Birdsell quickly added corresponding support in &lt;a href=&quot;http://gerrit.cloudera.org:8080/4548&quot;&gt;Python&lt;/a&gt;.
This new feature will be available in an upcoming release.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Work continues on the &lt;code&gt;kudu&lt;/code&gt; command line tool. Dinesh Bhat added
the ability to ask a tablet’s leader to &lt;a href=&quot;http://gerrit.cloudera.org:8080/4533&quot;&gt;step down&lt;/a&gt;
and Alexey Serbin added a &lt;a href=&quot;http://gerrit.cloudera.org:8080/4412&quot;&gt;tool to insert random data into a
table&lt;/a&gt;.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Jordan Birdsell continues to be on a tear improving the Python client.
The patches are too numerous to mention, but highlights include Python 3
support as well as near feature parity with the C++ client.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Todd Lipcon has been doing some refactoring and cleanup in the Raft
consensus implementation. In addition to simplifying and removing code,
he committed &lt;a href=&quot;https://issues.apache.org/jira/browse/KUDU-1567&quot;&gt;KUDU-1567&lt;/a&gt;,
which improves write performance in many cases by a factor of three
or more while also improving stability.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;Brock Noland is working on support for &lt;a href=&quot;https://gerrit.cloudera.org/#/c/4491/&quot;&gt;INSERT IGNORE&lt;/a&gt;
as a first-class part of the Kudu API. Of course this functionality
can already be done by simply performing normal inserts and ignoring any
resulting errors, but pushing it to the server prevents the server
from counting such operations as errors.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;Congratulations to Ninad Shringarpure for contributing his first patches
to Kudu. Ninad contributed two documentation fixes and improved
formatting on the Kudu web UI.&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Want to learn more about a specific topic from this blog post? Shoot an email to the
&lt;a href=&quot;&amp;#109;&amp;#097;&amp;#105;&amp;#108;&amp;#116;&amp;#111;:&amp;#117;&amp;#115;&amp;#101;&amp;#114;&amp;#064;&amp;#107;&amp;#117;&amp;#100;&amp;#117;&amp;#046;&amp;#097;&amp;#112;&amp;#097;&amp;#099;&amp;#104;&amp;#101;&amp;#046;&amp;#111;&amp;#114;&amp;#103;&quot;&gt;kudu-user mailing list&lt;/a&gt; or
tweet at &lt;a href=&quot;https://twitter.com/ApacheKudu&quot;&gt;@ApacheKudu&lt;/a&gt;. Similarly, if you’re
aware of some Kudu news we missed, let us know so we can cover it in
a future post.&lt;/p&gt;</content><author><name>Todd Lipcon</name></author><summary>Welcome to the twenty-first edition of the Kudu Weekly Update. Astute
readers will notice that the weekly blog posts have been not-so-weekly
of late – in fact, it has been nearly two months since the previous post
as I and others have focused on releases, conferences, etc.

So, rather than covering just this past week, this post will cover highlights
of the progress since the 1.0 release in mid-September. If you’re interested
in learning about progress prior to that release, check the
release notes.</summary></entry><entry><title>Apache Kudu at Strata+Hadoop World NYC 2016</title><link href="/2016/09/26/strata-nyc-kudu-talks.html" rel="alternate" type="text/html" title="Apache Kudu at Strata+Hadoop World NYC 2016" /><published>2016-09-26T00:00:00-07:00</published><updated>2016-09-26T00:00:00-07:00</updated><id>/2016/09/26/strata-nyc-kudu-talks</id><content type="html" xml:base="/2016/09/26/strata-nyc-kudu-talks.html">&lt;p&gt;This week in New York, O’Reilly and Cloudera will be hosting Strata+Hadoop World
2016. If you’re interested in Kudu, there will be several opportunities to
learn more, both from the open source development team as well as some companies
who are already adopting Kudu for their use cases.
&lt;!--more--&gt;
Here are some of the sessions to check out:&lt;/p&gt;

&lt;ul&gt;
  &lt;li&gt;
    &lt;p&gt;&lt;a href=&quot;http://conferences.oreilly.com/strata/hadoop-big-data-ny/public/schedule/detail/52146&quot;&gt;Powering real-time analytics on Xfinity using Kudu&lt;/a&gt; (Wednesday, 11:20am)&lt;/p&gt;

    &lt;p&gt;Sridhar Alla and Kiran Muglurmath from Comcast will talk about how they’re using
Kudu to store hundreds of billions of Set-Top Box (STB) events, performing
analytics concurrently with real-time streaming ingest of thousands of events
per second.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;&lt;a href=&quot;http://conferences.oreilly.com/strata/hadoop-big-data-ny/public/schedule/detail/52248&quot;&gt;Creating real-time, data-centric applications with Impala and Kudu&lt;/a&gt; (Wednesday, 2:05pm)&lt;/p&gt;

    &lt;p&gt;Marcel Kornacker and Todd Lipcon will introduce how Impala and Kudu together
allow users to build real-time applications that support streaming ingest,
random access updates and deletes, and high performance analytic SQL in
a single system.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;&lt;a href=&quot;http://conferences.oreilly.com/strata/hadoop-big-data-ny/public/schedule/detail/52168&quot;&gt;Streaming cybersecurity into Graph: Accelerating data into Datastax Graph and Blazegraph&lt;/a&gt; (Thursday, 1:15pm)&lt;/p&gt;

    &lt;p&gt;Joshua Patterson, Michael Wendt, and Keith Kraus from Accenture Labs will discuss
how they have built cybersecurity solutions using graph analytics on top of open
source technology like Apache Kafka, Spark, and Flink. They will also touch on
why Kudu is becoming an integral part of Accenture’s technology stack.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;&lt;a href=&quot;http://conferences.oreilly.com/strata/hadoop-big-data-ny/public/schedule/detail/52050&quot;&gt;How GE analyzes billions of mission-critical events in real time using Apache Apex, Spark, and Kudu&lt;/a&gt; (Thursday, 2:05pm)&lt;/p&gt;

    &lt;p&gt;Venkatesh Sivasubramanian and Luis Ramos from GE Digital will discuss how they
collect and process real-time IoT data using Apache Apex and Apache Spark, and
how they’ve been experimenting with Apache Kudu for time series data storage.&lt;/p&gt;
  &lt;/li&gt;
  &lt;li&gt;
    &lt;p&gt;&lt;a href=&quot;http://conferences.oreilly.com/strata/hadoop-big-data-ny/public/schedule/detail/51887&quot;&gt;Apache Kudu: 1.0 and Beyond&lt;/a&gt; (Thursday, 4:35pm)&lt;/p&gt;

    &lt;p&gt;Todd Lipcon from Cloudera will review the new features that were developed between Kudu 0.5
(the first public release one year ago) and Kudu 1.0, released just last week. Additionally,
this talk will provide some insight into the upcoming project roadmap for the coming year.&lt;/p&gt;
  &lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Aside from these organized sessions, word has it that there will be various demos
featuring Apache Kudu at the Cloudera and ZoomData vendor booths.&lt;/p&gt;

&lt;p&gt;If you’re not attending the conference, but still based in NYC, all hope is
not lost. Michael Crutcher from Cloudera will be presenting an introduction
to Apache Kudu at the &lt;a href=&quot;http://www.meetup.com/mysqlnyc/events/233599664/&quot;&gt;SQL NYC Meetup&lt;/a&gt;.
Be sure to RSVP as spots are filling up fast.&lt;/p&gt;</content><author><name>Todd Lipcon</name></author><summary>This week in New York, O’Reilly and Cloudera will be hosting Strata+Hadoop World
2016. If you’re interested in Kudu, there will be several opportunities to
learn more, both from the open source development team as well as some companies
who are already adopting Kudu for their use cases.</summary></entry></feed>