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| <h1 class="entry-title">Apache Kudu (incubating) Weekly Update June 1, 2016</h1> |
| <p class="meta">Posted 01 Jun 2016 by Jean-Daniel Cryans</p> |
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| <div class="entry-content"> |
| <p>Welcome to the eleventh edition of the Kudu Weekly Update. This weekly blog post |
| covers ongoing development and news in the Apache Kudu (incubating) project.</p> |
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| 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> |
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| <h2 id="development-discussions-and-code-in-progress">Development discussions and code in progress</h2> |
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| <ul> |
| <li> |
| <p>Jean-Daniel Cryans, the release manager for 0.9.0, <a href="http://mail-archives.apache.org/mod_mbox/incubator-kudu-dev/201605.mbox/%3CCAGpTDNe_gV5TTsJQSjx_Q-hSGjK9TesWkyP-k9rnhd0mBtYAYg%40mail.gmail.com%3E">indicated</a> |
| that the release is almost ready and the first release candidate will be put up for vote this |
| week.</p> |
| </li> |
| <li> |
| <p>Dan Burkert pushed <a href="http://gerrit.cloudera.org:8080/3131">a change</a> that disallows default |
| partitioning when creating a new table. This is due to many reports from users experiencing bad |
| performance because their table was created with only one tablet. Kudu will now force users to |
| partition their tables.</p> |
| </li> |
| <li> |
| <p>Todd Lipcon ran YCSB stress tests on a cluster and discovered that compactions were taking hours |
| instead of seconds. He pushed <a href="http://gerrit.cloudera.org:8080/#/c/3221/">a change</a> that solves |
| the issue as part of our <a href="https://issues.apache.org/jira/browse/KUDU-749">general effort</a> to |
| improve performance for zipfian update workloads.</p> |
| </li> |
| <li> |
| <p>Todd also <a href="http://gerrit.cloudera.org:8080/#/c/3186/">changed</a> some flush-related defaults to |
| encourage parallel IO and larger flushes. This is based on his previous work that he documented |
| in this <a href="http://kudu.apache.org/2016/04/26/ycsb.html">blog post</a>.</p> |
| </li> |
| <li> |
| <p>Will Berkeley made a few improvements last week, but <a href="http://gerrit.cloudera.org:8080/3199">one</a> |
| we’d like to call out is that he removed the Java’s kudu-mapreduce module dependency on Hadoop’s |
| hadoop-common test jar. This solved build issues while also removing a nasty dependency.</p> |
| </li> |
| </ul> |
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| <div class="col-lg-3 recent-posts"> |
| <h3>Recent posts</h3> |
| <ul> |
| |
| <li> <a href="/2016/07/01/apache-kudu-0-9-1-released.html">Apache Kudu (incubating) 0.9.1 released</a> </li> |
| |
| <li> <a href="/2016/06/27/weekly-update.html">Apache Kudu (incubating) Weekly Update June 27, 2016</a> </li> |
| |
| <li> <a href="/2016/06/24/multi-master-1-0-0.html">Master fault tolerance in Kudu 1.0</a> </li> |
| |
| <li> <a href="/2016/06/21/weekly-update.html">Apache Kudu (incubating) Weekly Update June 21, 2016</a> </li> |
| |
| <li> <a href="/2016/06/17/raft-consensus-single-node.html">Using Raft Consensus on a Single Node</a> </li> |
| |
| <li> <a href="/2016/06/13/weekly-update.html">Apache Kudu (incubating) Weekly Update June 13, 2016</a> </li> |
| |
| <li> <a href="/2016/06/10/apache-kudu-0-9-0-released.html">Apache Kudu (incubating) 0.9.0 released</a> </li> |
| |
| <li> <a href="/2016/06/06/weekly-update.html">Apache Kudu (incubating) Weekly Update June 6, 2016</a> </li> |
| |
| <li> <a href="/2016/06/02/no-default-partitioning.html">Default Partitioning Changes Coming in Kudu 0.9</a> </li> |
| |
| <li> <a href="/2016/06/01/weekly-update.html">Apache Kudu (incubating) Weekly Update June 1, 2016</a> </li> |
| |
| <li> <a href="/2016/05/23/weekly-update.html">Apache Kudu (incubating) Weekly Update May 23, 2016</a> </li> |
| |
| <li> <a href="/2016/05/16/weekly-update.html">Apache Kudu (incubating) Weekly Update May 16, 2016</a> </li> |
| |
| <li> <a href="/2016/05/09/weekly-update.html">Apache Kudu (incubating) Weekly Update May 9, 2016</a> </li> |
| |
| <li> <a href="/2016/05/03/weekly-update.html">Apache Kudu (incubating) Weekly Update May 3, 2016</a> </li> |
| |
| <li> <a href="/2016/04/26/ycsb.html">Benchmarking and Improving Kudu Insert Performance with YCSB</a> </li> |
| |
| </ul> |
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