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    <title>Magnolia - Issue tracker</title>
    <link>https://jira.magnolia-cms.com</link>
    <description>This file is an XML representation of an issue</description>
    <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>[LIVECOPY-230] [Investigation] Live Copy performance tuning</title>
                <link>https://jira.magnolia-cms.com/browse/LIVECOPY-230</link>
                <project id="14680" key="LIVECOPY">Live Copy</project>
                    <description>&lt;p&gt;&lt;b&gt;Use case&lt;/b&gt; - push and relink functionality on 5.7&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Belimo is working with live copy since the beginning. He has now 23 live copy trees. The &lt;em&gt;push and relink&lt;/em&gt; get&#8217;s slower and slower.&lt;/li&gt;
	&lt;li&gt;On 5.7, first everything will be pushed and after that it goes through everything and relinks it. I guess what could be a significant performance boost is if the relink would be triggered with the push of the data. It just requires that all pages which are newly created are already in place. The Customer already mentioned that it takes minutes to push something, so it&#8217;s already noticed.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;b&gt;Investigation&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;What causes the system to slow down: push and relink, others &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.magnolia-cms.com/images/icons/emoticons/help_16.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&#160;&lt;/li&gt;
	&lt;li&gt;What can be done to improve the performance&#160;&lt;/li&gt;
	&lt;li&gt;&lt;del&gt;Should we use Elastic Search together with LC: there are a lot of queries by id, that I think might be the cause of the slowness&lt;/del&gt;&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="92377">LIVECOPY-230</key>
            <summary>[Investigation] Live Copy performance tuning</summary>
                <type id="3" iconUrl="https://jira.magnolia-cms.com/secure/viewavatar?size=xsmall&amp;avatarId=10898&amp;avatarType=issuetype">Task</type>
                                            <priority id="10001" iconUrl="https://jira.magnolia-cms.com/images/icons/priorities/major.svg">Medium</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="chuong.doan">Chuong Doan Huy</assignee>
                                    <reporter username="ldelnevo">Laura Delnevo</reporter>
                        <labels>
                            <label>VN-Analysis</label>
                            <label>VN-Maintenance</label>
                            <label>VN-Testing</label>
                            <label>maintenance</label>
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                <created>Thu, 29 Oct 2020 10:15:32 +0100</created>
                <updated>Fri, 16 Jul 2021 12:23:08 +0200</updated>
                            <resolved>Thu, 1 Jul 2021 06:14:57 +0200</resolved>
                                                    <fixVersion>3.2.4</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>3</watches>
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                                <comments>
                            <comment id="263661" author="marvink2" created="Wed, 2 Jun 2021 08:15:38 +0200"  >&lt;p&gt;We have found one bigger performance issue in the Class &lt;a href=&quot;https://git.magnolia-cms.com/projects/ADDON/repos/live-copy/browse/src/main/java/info/magnolia/livecopy/command/PropagateMasterContentChangesCommand.java#125&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://git.magnolia-cms.com/projects/ADDON/repos/live-copy/browse/src/main/java/info/magnolia/livecopy/command/PropagateMasterContentChangesCommand.java#125&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;This method collects all children and then does the same in the for loop. The result is a massive collection with endless duplicates.&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://jira.magnolia-cms.com/secure/attachment/80466/80466_image-2021-06-02-08-13-20-186.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="267072" author="chuong.doan" created="Wed, 30 Jun 2021 05:53:32 +0200"  >&lt;p&gt;In 5.7, &quot;push&quot; and &quot;relink&quot; are separated actions, so the &quot;push trigger relink&quot; is not possible unless ui/feature change required. ==&amp;gt; No action on LC for 5.7&lt;br/&gt;
However from 6.2, in &quot;push&quot; action, &quot;relink&quot; is included as an option, so a performance boot can be expected. The real performance issue came from &quot;executeRecursively&quot; method pointed by Marvin ==&amp;gt; Fix on 6.2&lt;/p&gt;</comment>
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                            <attachment id="80466" name="image-2021-06-02-08-13-20-186.png" size="11371" author="marvink2" created="Wed, 2 Jun 2021 08:13:20 +0200"/>
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