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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-80980] remove lock in VectorClock::isEnabled </title>
                <link>https://jira.mongodb.org/browse/SERVER-80980</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A lock is taken in VectorClock::isEnabled to check if VectorClock is enabled. It appears that VectorClock can only ever be disabled if a node becomes an arbiter and cannot be renabled. Since &lt;tt&gt;VectorClock::isEnabled&lt;/tt&gt; is called several times in a request (gossipIn during request processing, gossipOut during reply processing and potentially over times (like getting legacy runtime constants)). This will help reduce contention on the VectorClock mutex and save time.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2439714">SERVER-80980</key>
            <summary>remove lock in VectorClock::isEnabled </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="david.dominguez@mongodb.com">David Dominguez Sal</assignee>
                                    <reporter username="mark.benvenuto@mongodb.com">Mark Benvenuto</reporter>
                        <labels>
                            <label>oldshardingemea</label>
                            <label>perf-8.0</label>
                            <label>perf-tiger</label>
                            <label>perf-tiger-handoff</label>
                            <label>perf-tiger-poc</label>
                            <label>perf-tiger-q4</label>
                            <label>shardingemea-qw</label>
                    </labels>
                <created>Tue, 12 Sep 2023 14:52:25 +0000</created>
                <updated>Wed, 24 Jan 2024 22:58:52 +0000</updated>
                            <resolved>Thu, 18 Jan 2024 09:02:19 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="6017754" author="xgen-internal-githook" created="Wed, 17 Jan 2024 16:07:28 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;david-dominguez-sal&apos;, &apos;email&apos;: &apos;97509688+david-dominguez-sal@users.noreply.github.com&apos;, &apos;username&apos;: &apos;david-dominguez-sal&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80980&quot; title=&quot;remove lock in VectorClock::isEnabled &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80980&quot;&gt;&lt;del&gt;SERVER-80980&lt;/del&gt;&lt;/a&gt;: Substitute mutex usage by atomic in VectorClock (#18090)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 778287175a14c70adec1e0766d746c5d3da46438&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/469a06bbf72dd3b9e85801f252c39e0a3d13ea75&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/469a06bbf72dd3b9e85801f252c39e0a3d13ea75&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2487361">SERVER-82647</issuekey>
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