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<h2 class="title">PECL/mysqlnd_ms 1.3 series</h2>
<p class="para">
1.3.2-stable
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
Release date: 04/2012
</span>
</li>
<li class="listitem">
<span class="simpara">
Motto/theme: see 1.3.0-alpha
</span>
</li>
</ul>
</p>
<p class="para">
Bug fixes
<ul class="itemizedlist">
<li class="listitem">
<p class="para">
Fixed problem with multi-master where although in a transaction
the queries to the master weren't sticky and were spread all
over the masters (RR). Still not sticky for Random. Random_once
is not affected.
</p>
</li>
</ul>
</p>
<p class="para">
1.3.1-beta
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
Release date: 04/2012
</span>
</li>
<li class="listitem">
<span class="simpara">
Motto/theme: see 1.3.0-alpha
</span>
</li>
</ul>
</p>
<p class="para">
Bug fixes
<ul class="itemizedlist">
<li class="listitem">
<p class="para">
Fixed problem with building together with QC.
</p>
</li>
</ul>
</p>
<p class="para">
1.3.0-alpha
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
Release date: 04/2012
</span>
</li>
<li class="listitem">
<span class="simpara">
Motto/theme: Query caching through quality-of-service concept
</span>
</li>
</ul>
</p>
<p class="para">
The 1.3 series aims to improve the performance of applications
and the overall load of an asynchronous MySQL cluster, for example, a MySQL
cluster using MySQL Replication. This is done by transparently replacing
a slave access with a local cache access, if the application allows it by
setting an appropriate quality of service flag. When using MySQL replication
a slave can serve stale data. An application using MySQL replication must
continue to work correctly with stale data. Given that the application
is know to work correctly with stale data, the slave access can transparently
be replace with a local cache access.
</p>
<p class="para">
<a href="book.mysqlnd-qc.html" class="link">PECL/mysqlnd_qc</a> serves as a cache
backend. PECL/mysqlnd_qc supports use of various storage locations,
among others main memory, <em>APC</em> and <em>MEMCACHE</em>.
</p>
<p class="para">
Feature changes
<ul class="itemizedlist">
<li class="listitem">
<p class="para">
Added cache option to quality-of-service (QoS) filter.
<ul class="itemizedlist">
<li class="listitem">
<span class="simpara">
New configure option <em>enable-mysqlnd-ms-cache-support</em>
</span>
</li>
<li class="listitem">
<span class="simpara">
New constant <em>MYSQLND_MS_HAVE_CACHE_SUPPORT</em>.
</span>
</li>
<li class="listitem">
<span class="simpara">
New constant <em>MYSQLND_MS_QOS_OPTION_CACHE</em> to be used
with <span class="function"><a href="function.mysqlnd-ms-set-qos.html" class="function">mysqlnd_ms_set_qos()</a></span>.
</span>
</li>
</ul>
</p>
</li>
<li class="listitem">
<p class="para">
Support for built-in global transaction identifier feature of MySQL 5.6.5-m8 or newer.
</p>
</li>
</ul>
</p>
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