Module and server group settings

&lt;h3 class=&quot;tab-title&quot;&gt;&lt;i style=&quot;font-size: 25px;&quot; class=&quot;fa fa-cog fa-border&quot; aria-hidden=&quot;true&quot;&gt;&lt;/i&gt; General setup&lt;/h3&gt; &lt;p&gt;Module settings forms:&lt;/p&gt; &lt;p&gt;&lt;img src=&quot;/images_en/module_settings_1_en.jpg&quot; width=&quot;900&quot; class=&quot;border&quot;&gt;&lt;/p&gt; &lt;p&gt;&lt;b&gt;Maximum possible slave database delay (sec.)&lt;/b&gt; - after this time data will be automatically disabled to reduce risk of data unsynchronization. &lt;br&gt;&lt;br&gt; Slave database delay is possible with a significant number of main (master) database updates, insufficiently quick connection between database master and slave, insufficient database slave performance. &lt;/p&gt; &lt;p&gt;&lt;div class=&quot;hint&quot;&gt;&lt;b&gt;Note:&lt;/b&gt; database delay time is displayed in the table at the [ds]Replication page[/ds][di]Database replication is a process of creating and supporting its copy up to date...&lt;br&gt;&lt;br&gt;&lt;a target=&quot;_blank&quot; href=&quot;&quot;&gt;Learn more ...&lt;/a&gt;[/di].&lt;/div&gt;&lt;/p&gt; &lt;/div&gt; &lt;h3 class=&quot;tab-title&quot;&gt;&lt;i style=&quot;font-size: 25px;&quot; class=&quot;fa fa-object-group fa-border&quot; aria-hidden=&quot;true&quot;&gt;&lt;/i&gt; Server groups&lt;/h3&gt; &lt;p&gt;Group is an entity created only for purposes of convenience. Groups are used for merging &quot;nodes&quot; within a geo cluster. This allows to allocate the following custom hardware in different geographically-located data centers: database servers, Memcached-servers, Web server.&lt;/p&gt; &lt;p&gt;&lt;table width=&quot;100%&quot; cellpadding=&quot;5&quot;&gt; &lt;tbody&gt; &lt;tr valign=&quot;top&quot;&gt;&lt;td&gt; &lt;p&gt;&lt;img src=&quot;/images_en/cluster_group_index_left_menu_en.jpg&quot; width=&quot;300&quot; class=&quot;border&quot;&gt;&lt;/p&gt;&lt;/td&gt;&lt;td&gt;Groups are created at the page &lt;span class=&quot;path&quot;&gt;Settings &gt; Web Cluster &gt; Server Groups&lt;/span&gt;. You need to just assign a name to a created group.&lt;/td&gt;&lt;/tr&gt; &lt;/tbody&gt; &lt;/table&gt;&lt;/p&gt; &lt;p&gt;&lt;div class=&quot;warning&quot;&gt;&lt;b&gt;Important!&lt;/b&gt; Each web server in a single group inside the file &lt;b&gt;dbconn.php&lt;/b&gt; must have a defined variable &lt;code&gt;BX_CLUSTER_GROUP&lt;/code&gt; with value matching to a group ID. Foe example: &lt;code&gt;define(&quot;BX_CLUSTER_GROUP&quot;, 1)&lt;/code&gt;. &lt;p&gt;Name of a second group can be &lt;b&gt;&quot;Group No.2&quot;&lt;/b&gt;, but the variable &lt;code&gt;BX_CLUSTER_GROUP&lt;/code&gt; must have an actual (autoincremental) identifier of this group that can be viewed at the page with list of server groups (&lt;span class=&quot;path&quot;&gt;Settings &amp;gt; Web Cluster &amp;gt; Server Groups&lt;/span&gt;).&lt;/p&gt; &lt;p&gt;The file &lt;b&gt;dbconn.php&lt;/b&gt; should't be synchronized between groups. &lt;/div&gt;&lt;/p&gt; &lt;/div&gt; &lt;br&gt;

Bitrix24 Self-hosted administration

General setup

Server groups