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    <title>Magnolia - Issue tracker</title>
    <link>https://jira.magnolia-cms.com</link>
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    <language>en-uk</language>    <build-info>
        <version>9.4.2</version>
        <build-number>940002</build-number>
        <build-date>19-01-2023</build-date>
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<item>
            <title>[MAGNOLIA-5899] Accelerate heartbeat of vaadin client synchronization request</title>
                <link>https://jira.magnolia-cms.com/browse/MAGNOLIA-5899</link>
                <project id="10000" key="MAGNOLIA">Magnolia</project>
                    <description>&lt;p&gt;UI that are open on the client side send a regular heartbeat to the server to indicate they are still alive, even though there is no ongoing user interaction. When the server does not receive a valid heartbeat for a given UI, it will eventually remove that UI from the session.&lt;/p&gt;

&lt;p&gt;By default, heartbeats are sent every five minutes, and the server closes an UI after three missed heartbeats. &lt;/p&gt;

&lt;p&gt;This is done in the web.xml by setting the heartbeatInterval value&lt;/p&gt;
&lt;div class=&quot;code panel&quot; style=&quot;border-width: 1px;&quot;&gt;&lt;div class=&quot;codeContent panelContent&quot;&gt;
&lt;pre class=&quot;code-java&quot;&gt;
  &amp;lt;context-param&amp;gt;
    &amp;lt;param-name&amp;gt;heartbeatInterval&amp;lt;/param-name&amp;gt;
    &amp;lt;param-value&amp;gt;90&amp;lt;/param-value&amp;gt;
  &amp;lt;/context-param&amp;gt;
&lt;/pre&gt;
&lt;/div&gt;&lt;/div&gt; 

&lt;p&gt;&lt;a href=&quot;https://vaadin.com/book/vaadin7/-/page/application.lifecycle.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://vaadin.com/book/vaadin7/-/page/application.lifecycle.html&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="40326">MAGNOLIA-5899</key>
            <summary>Accelerate heartbeat of vaadin client synchronization request</summary>
                <type id="3" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10898&amp;avatarType=issuetype">Task</type>
                                            <priority id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/neutral.gif">Neutral</priority>
                        <status id="6" iconUrl="https://jira.magnolia-cms.com/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are not closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="1">Fixed</resolution>
                                        <assignee username="ehechinger">Eric Hechinger</assignee>
                                    <reporter username="ehechinger">Eric Hechinger</reporter>
                        <labels>
                    </labels>
                <created>Thu, 28 Aug 2014 09:05:20 +0200</created>
                <updated>Thu, 12 Mar 2015 10:35:33 +0100</updated>
                            <resolved>Thu, 28 Aug 2014 09:10:45 +0200</resolved>
                                    <version>5.3.2</version>
                                    <fixVersion>5.3.3</fixVersion>
                                    <component>bundle</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="90241" author="had" created="Thu, 28 Aug 2014 12:35:58 +0200"  >&lt;p&gt;What is the impact of this change on network traffic and server cpu load?&lt;/p&gt;</comment>
                            <comment id="90243" author="apchelintcev" created="Thu, 28 Aug 2014 13:38:39 +0200"  >&lt;p&gt;Heartbeat request is super-light request that Vaadin UI client-side sends to server just to let it know it&apos;s alive, so the impact should be neglectable. I would though set the value to something a bit less frequent like 60-90 seconds so that those requests for instance do not clutter the dev tools.&lt;/p&gt;</comment>
                            <comment id="90275" author="pmundt" created="Fri, 29 Aug 2014 11:20:28 +0200"  >&lt;p&gt;Increase &lt;tt&gt;heartbeatInterval&lt;/tt&gt; to &lt;tt&gt;90&lt;/tt&gt; seconds.&lt;/p&gt;</comment>
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