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| <option value="/news/2023/01/19/release-1.23.0/">Release 1.23.0</option> |
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| <option value="/news/2022/10/13/release-avatica-go-5.2.0/">Release Avatica Go 5.2.0</option> |
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| <option value="/news/2022/07/28/release-1.22.0/">Release 1.22.0</option> |
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| <h2> |
| Release 1.7.1 |
| <a href="/news/2016/03/18/release-1.7.1/" class="permalink" title="Permalink">∞</a> |
| </h2> |
| <span class="post-category"> |
| <span class="label"> |
| release |
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| </span> |
| <div class="post-meta"> |
| <span class="post-date"> |
| 18 Mar 2016 |
| </span> |
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| |
| <a href="http://github.com/joshelser" class="post-author"> |
| <img src="http://github.com/joshelser.png" |
| class="avatar" alt="elserj avatar" |
| width="24" height="24"> |
| elserj |
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| <div class="post-content"> |
| <!-- |
| |
| --> |
| |
| <p>Apache Calcite’s PMC has just released Avatica 1.7.1, the first |
| release of <a href="http://calcite.apache.org/avatica/">Avatica</a> as an |
| independent project. We’re excited because it makes Avatica easier to |
| use, and allows us to be more agile in our release schedule.</p> |
| |
| <p>(Avatica was previously released as part of Calcite. Avatica is still |
| governed by Apache Calcite’s PMC, and stored in the same git |
| repository as Calcite, but releases are no longer synchronized, and |
| Avatica does not depend on any Calcite modules.)</p> |
| |
| <p>A significant portion of the work of this release was “Maven work” to |
| separate the build and release processes, but there were several |
| important bug fixes, including a security fix for Jetty (see below).</p> |
| |
| <p>Performance, specifically on the write path, was a big focus in this |
| release. |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1091">CALCITE-1091</a>] |
| contained a number of important changes. Some of these changes (e.g. |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1092">CALCITE-1092</a>] |
| and |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1093">CALCITE-1093</a>]) |
| were related to heap usage in the Avatica server, while |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1094">CALCITE-1094</a>] |
| and |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1117">CALCITE-1117</a>] |
| were strictly performance-related.</p> |
| |
| <p>The latter improved performance the most. Switching to the |
| <a href="http://hc.apache.org/">Apache Commons HttpComponents Client</a> |
| library instead of using the Java platform’s built-in |
| <a href="https://docs.oracle.com/javase/7/docs/api/java/net/HttpURLConnection.html">HttpURLConnection</a>, |
| we noticed a 15% improvement in pure write workloads.</p> |
| |
| <p>Three dependent library upgrades:</p> |
| |
| <ul> |
| <li>We completely removed |
| <a href="https://commons.apache.org/proper/commons-logging/">Commons Logging</a> |
| in favor of <a href="http://slf4j.org/">SLF4J</a> in |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-669">CALCITE-669</a>]. |
| This logging framework update will allow downstream integrators to |
| use the logging implementation of their choice instead of being |
| forced to inherit Commons Logging.</li> |
| <li>We upgraded Jackson from 2.1.1 to 2.6.3 in |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1021">CALCITE-1021</a>].</li> |
| <li>We upgraded Jetty from 9.2.7.v20150116 to 9.2.15.v20160210 in |
| [<a href="https://issues.apache.org/jira/browse/CALCITE-1156">CALCITE-1156</a>] |
| to fix a |
| <a href="https://blog.gdssecurity.com/labs/2015/2/25/jetleak-vulnerability-remote-leakage-of-shared-buffers-in-je.html">security issue</a>.</li> |
| </ul> |
| |
| <p>Note that Avatica’s Maven coordinates have changed. The <code class="language-plaintext highlighter-rouge">groupId</code> is |
| now “org.apache.calcite.avatica” (previously “org.apache.calcite”), |
| and <code class="language-plaintext highlighter-rouge">artifactId</code>s are |
| “avatica”, |
| “avatica-metrics”, |
| “avatica-metrics-dropwizardmetrics3”, |
| “avatica-noop-driver”, |
| “avatica-server” |
| (previously “calcite-avatica”, etc.). Make sure to update these when |
| upgrading to this version.</p> |
| |
| |
| |
| <p>See the <a href="/avatica/docs/history.html#v1-7-1">release notes</a>; |
| <a href="/avatica/downloads/avatica.html#source-releases">download</a> the release.</p> |
| |
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| <a href="/avatica/news/avatica-releases/">Avatica Releases</a> |
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| <h4>Recent Releases</h4> |
| <ul> |
| |
| <li class=""> |
| <a href="/avatica/news/2023/01/19/release-1.23.0/">avatica 1.23.0</a> |
| </li> |
| |
| <li class=""> |
| <a href="/avatica/news/2022/10/13/release-avatica-go-5.2.0/">avatica-go 5.2.0</a> |
| </li> |
| |
| <li class=""> |
| <a href="/avatica/news/2022/07/28/release-1.22.0/">avatica 1.22.0</a> |
| </li> |
| |
| <li class=""> |
| <a href="/avatica/news/2022/05/08/release-1.21.0/">avatica 1.21.0</a> |
| </li> |
| |
| <li class=""> |
| <a href="/avatica/news/2022/03/27/release-avatica-go-5.1.0/">avatica-go 5.1.0</a> |
| </li> |
| |
| </ul> |
| <h4>Other News</h4> |
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| |
| <li class=""> |
| <a href="/avatica/news/2017/03/31/new-avatica-repository/">New Avatica Repository</a> |
| </li> |
| |
| <li class=""> |
| <a href="/avatica/news/2016/03/04/separate-project/">Splitting Avatica from Calcite</a> |
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