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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-73288] Cache sharding collection description on update_stage</title>
                <link>https://jira.mongodb.org/browse/SERVER-73288</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;update_stage currently &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4017f1973070f9f0065f2e29353b7b6dc8991c1e/src/mongo/db/exec/update_stage.cpp#L162-L164&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;fetches the sharding collectionDescription&lt;/a&gt; for every document it modifies. It would be enough to fetch it only once per restore-yield cycle, and reuse it for all updates done in that cycle.&lt;br/&gt;
This is to fix the performance regression caused by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69435&quot; title=&quot;Make the CSS acquisition a RAII&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69435&quot;&gt;&lt;del&gt;SERVER-69435&lt;/del&gt;&lt;/a&gt; (BF-26813) which made getting the CSS more expensive.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2242776">SERVER-73288</key>
            <summary>Cache sharding collection description on update_stage</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
                    </labels>
                <created>Wed, 25 Jan 2023 09:42:03 +0000</created>
                <updated>Sun, 29 Oct 2023 21:27:26 +0000</updated>
                            <resolved>Wed, 25 Jan 2023 17:27:49 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5139497" author="xgen-internal-githook" created="Wed, 25 Jan 2023 14:08:55 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Serra Torrens&apos;, &apos;email&apos;: &apos;jordi.serra-torrens@mongodb.com&apos;, &apos;username&apos;: &apos;jordist&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73288&quot; title=&quot;Cache sharding collection description on update_stage&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73288&quot;&gt;&lt;del&gt;SERVER-73288&lt;/del&gt;&lt;/a&gt; Cache sharding collection description on update_stage&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0d9d16c84a8ffb4459f87a3a12dca55900979520&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0d9d16c84a8ffb4459f87a3a12dca55900979520&lt;/a&gt;&lt;/p&gt;</comment>
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