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Spark Release 1.2.1 | Apache Spark
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<li><a href="/news/spark-2-0-0-released.html">Spark 2.0.0 released</a>
<span class="small">(Jul 26, 2016)</span></li>
<li><a href="/news/spark-1-6-2-released.html">Spark 1.6.2 released</a>
<span class="small">(Jun 25, 2016)</span></li>
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<span class="small">(Jun 16, 2016)</span></li>
<li><a href="/news/spark-2.0.0-preview.html">Preview release of Spark 2.0</a>
<span class="small">(May 26, 2016)</span></li>
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<h2>Spark Release 1.2.1</h2>
<p>Spark 1.2.1 is a maintenance release containing stability fixes. This release is based on the <a href="https://github.com/apache/spark/tree/branch-1.2">branch-1.2</a> maintenance branch of Spark. We recommend all 1.2.0 users to upgrade to this stable release. Contributions to this release came from 69 developers.</p>
<p>To download Spark 1.2.1 visit the <a href="/downloads.html">downloads</a> page.</p>
<h3 id="fixes">Fixes</h3>
<p>Spark 1.2.1 contains bug fixes in several components. Some of the more important fixes are highlighted below. You can visit the <a href="http://s.apache.org/Mpn">Spark issue tracker</a> for the full list of fixes.</p>
<h4 id="security">Security</h4>
<ul>
<li>Locks down file permissions for temporary file storage</li>
</ul>
<h4 id="spark-core">Spark Core</h4>
<ul>
<li>Netty shuffle ignores spark.blockManager.port (<a href="https://issues.apache.org/jira/browse/SPARK-4837">SPARK-4837</a>)</li>
<li>MetricsServlet does not initialize properly (<a href="https://issues.apache.org/jira/browse/SPARK-4595">SPARK-4595</a>)</li>
<li>Repl and YARN dependencies are not published to Maven (<a href="https://issues.apache.org/jira/browse/SPARK-5289">SPARK-5289</a>)</li>
<li>SparkConf is not thread safe (<a href="https://issues.apache.org/jira/browse/SPARK-5355">SPARK-5355</a>)</li>
<li>Byte code errors when linking against Spark (<a href="https://issues.apache.org/jira/browse/SPARK-2075">SPARK-2075</a>)</li>
</ul>
<h4 id="sql">SQL</h4>
<ul>
<li>CACHE TABLE AS SELECT fails with Hive UDFs (<a href="https://issues.apache.org/jira/browse/SPARK-5187">SPARK-5187</a>)</li>
<li>Attributes are case sensitive when using a select query from a projection (<a href="https://issues.apache.org/jira/browse/SPARK-4959">SPARK-4959</a>)</li>
<li>Spark SQL built for Hive 13 fails under concurrent metadata queries (<a href="https://issues.apache.org/jira/browse/SPARK-4908">SPARK-4908</a>)</li>
<li>Throw “Expression not in GROUP BY” when using same expression in group by clause and select clause (<a href="https://issues.apache.org/jira/browse/SPARK-4296">SPARK-4296</a>)</li>
</ul>
<h4 id="streaming">Streaming</h4>
<ul>
<li>Proper file clean up for write ahead logs (<a href="https://issues.apache.org/jira/browse/SPARK-5147">SPARK-5147</a>)</li>
<li>Error with existing files during checkpoint recovery (<a href="https://issues.apache.org/jira/browse/SPARK-4835">SPARK-4835</a>)</li>
<li>Socket Receiver does not stop when streaming context is stopped (<a href="https://issues.apache.org/jira/browse/SPARK-2892">SPARK-2892</a>)</li>
</ul>
<h4 id="pyspark">PySpark</h4>
<ul>
<li>Parallelizing lists or arrays is slow (<a href="https://issues.apache.org/jira/browse/SPARK-5224">SPARK-5224</a>)</li>
<li>Serializer bug when using zip (<a href="https://issues.apache.org/jira/browse/SPARK-4841">SPARK-4841</a>)</li>
<li>Support Vector types within a dictionary (<a href="https://issues.apache.org/jira/browse/SPARK-5223">SPARK-5223</a>)</li>
</ul>
<h3 id="contributors">Contributors</h3>
<p>The following developers contributed to this release:</p>
<ul>
<li>Aaron Davidson – Bug fixes in Core</li>
<li>Alex Liu – Improvements in Core and SQL; bug fixes in SQL</li>
<li>Andrew Ash – Documentation in Core</li>
<li>Andrew Or – Improvements in Core and YARN; bug fixes in Core and YARN</li>
<li>Bilna – Test in Streaming</li>
<li>Brennon York – Bug fixes in Core</li>
<li>Cheng Hao – Bug fixes in Core and SQL</li>
<li>Cheng Lian – Bug fixes in Core</li>
<li>Christophe Preaud – Improvements in Core</li>
<li>Dale Richardson – Improvement in Core</li>
<li>Davies Liu – Bug fixes in Core, MLlib, and PySpark</li>
<li>Derek Ma – Bug fixes in Shuffle</li>
<li>Earne – Improvements in Core and GraphX</li>
<li>GuoQiang Li – Bug fixes in Core and YARN</li>
<li>Hari Shreedharan – Bug fixes in Streaming</li>
<li>Ilayaperumal Gopinathan – Bug fixes in Streaming</li>
<li>Ilya Ganelin – Bug fixes in Core and Shuffle</li>
<li>Jacek Lewandowski – Bug fixes in Core</li>
<li>Jeremy Freeman – Bug fixes in MLlib and PySpark</li>
<li>Jongyoul Lee – Documentation in Streaming; bug fixes in Core and Mesos</li>
<li>Joseph K. Bradley – Bug fixes in Core, MLlib, and PySpark</li>
<li>Josh Rosen – Improvements in Core and SQL; new features in Core; bug fixes in Streaming and PySpark</li>
<li>Kanwaljit Singh – Bug fixes in Core</li>
<li>Kenji Kikushima – Bug fixes in GraphX</li>
<li>Kousuke Saruta – Bug fixes in Core and Web UI</li>
<li>Lianhui Wang – Bug fixes in Core</li>
<li>Madhu Siddalingaiah – Documentation in Core</li>
<li>Marcelo Vanzin – Bug fixes in Core</li>
<li>Michael Armbrust – Improvements in Core; bug fixes in SQL</li>
<li>Michael Davies – Improvements in SQL</li>
<li>Nan Zhu – Improvements and bug fixes in Streaming</li>
<li>Nathan Kronenfeld – Bug fixes in Core</li>
<li>Nicholas Chammas – Documentation in Core</li>
<li>Patrick Wendell – Improvements and documentation in Core</li>
<li>Peter Klipfel – Documentation in Core</li>
<li>Peter Vandenabeele – Documentation in Core</li>
<li>Ryan Williams – Improvements, bug fixes, and documentation in Core</li>
<li>SaintBacchus – Bug fixes in Core and YARN</li>
<li>Saisai Shao – Bug fixes in Core</li>
<li>Saisai Shao – Improvements in Streaming; bug fixes in Streaming and SQL; improvement in Streaming</li>
<li>Sandy Ryza – Improvements in Core</li>
<li>Sean Owen – Improvements in Core; wish in Core; documentation in Core; bug fixes in Java API, Core, and SQL</li>
<li>Shixiong Zhu – Improvements in Streaming and Shuffle; bug fixes in Core and Streaming; documentation in Core and YARN</li>
<li>Su Yan – Improvements in Core; bug fixes in Core and Web UI</li>
<li>Takeshi Yamamuro – Improvements and bug fixes in GraphX</li>
<li>Tathagata Das – Improvements and improvement in Streaming</li>
<li>Timothy Chen – Documentation in Core</li>
<li>Tingjun Xu – Bug fixes in YARN</li>
<li>Tsuyoshi Ozawa – Documentation in Core and YARN</li>
<li>UncleGen – Improvements in Web UI; bug fixes in Core</li>
<li>Venkata Ramana Gollamudi – Bug fixes in Core</li>
<li>Wang Tao – Bug fixes in Core</li>
<li>Xiangrui Meng – Documentation in MLlib</li>
<li>Xiaohua Yi – Bug fixes in SQL</li>
<li>Xiaojing Wang – Documentation in Core</li>
<li>Yash Datta – Bug fixes in SQL</li>
<li>Ye Xianjin – Bug fixes in Core</li>
<li>Yuhao Yang – Improvements and bug fixes in MLlib</li>
<li>Zhang, Liye – Improvements in Web UI</li>
</ul>
<p><em>Thanks to everyone who contributed!</em></p>
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<br/>
<a href="/news/">Spark News Archive</a>
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