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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-69360] Remove small field optimization of damages computation</title>
                <link>https://jira.mongodb.org/browse/SERVER-69360</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There is a &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ce3443291cd663ae5375941f380d4bc52bc88a85/src/mongo/db/update/document_diff_applier.cpp#L243&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;small field optimization&lt;/a&gt; whenever we compute damages that will treat the field + value as part of a damage. This is meant to reduce the total number of damages as it would help merge nearby damages if they are only separated by a small field.&lt;/p&gt;

&lt;p&gt;However, this can cause potential runoffs if all the fields are considered small, leading to all of them being considered as part of a damage. In some instances this can cause a single damage to contain 90%+ of the original document even if it only modified a few bytes initially.&lt;/p&gt;

&lt;p&gt;To avoid this the optimization should be removed.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2127301">SERVER-69360</key>
            <summary>Remove small field optimization of damages computation</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</assignee>
                                    <reporter username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</reporter>
                        <labels>
                            <label>neweng</label>
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                <created>Thu, 1 Sep 2022 12:56:35 +0000</created>
                <updated>Sun, 29 Oct 2023 21:33:43 +0000</updated>
                            <resolved>Fri, 9 Sep 2022 13:54:43 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4814427" author="xgen-internal-githook" created="Fri, 9 Sep 2022 13:40:22 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Olivares Provencio&apos;, &apos;email&apos;: &apos;jordi.olivares-provencio@mongodb.com&apos;, &apos;username&apos;: &apos;jordiolivares&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69360&quot; title=&quot;Remove small field optimization of damages computation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69360&quot;&gt;&lt;del&gt;SERVER-69360&lt;/del&gt;&lt;/a&gt; Remove small field optimization&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d14bc704d5e758a383093e42225e2f701aab9e4b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d14bc704d5e758a383093e42225e2f701aab9e4b&lt;/a&gt;&lt;/p&gt;</comment>
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