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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-82647] Avoid getting current VectorClock in Variables::generateRuntimeConstants</title>
                <link>https://jira.mongodb.org/browse/SERVER-82647</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The VectorClock is protected by a global mutex. When possible, it is preferential to avoid unnecessary calls to this global lock. One caller is the &lt;tt&gt;Variables::generateRuntimeConstants&lt;/tt&gt; function which fetches the ClusterTime even though a query may never access $$CLUSTER_TIME. I believe it is possible to analyze the query for $$CLUSTER_TIME usage like $$USER_ROLES is checked for.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2487361">SERVER-82647</key>
            <summary>Avoid getting current VectorClock in Variables::generateRuntimeConstants</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="justin.seyster@mongodb.com">Justin Seyster</assignee>
                                    <reporter username="mark.benvenuto@mongodb.com">Mark Benvenuto</reporter>
                        <labels>
                            <label>car-qw</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>query-perf-q4</label>
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                <created>Wed, 1 Nov 2023 00:29:07 +0000</created>
                <updated>Wed, 24 Jan 2024 22:50:41 +0000</updated>
                            <resolved>Wed, 17 Jan 2024 19:50:15 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="6018651" author="justin.seyster" created="Wed, 17 Jan 2024 19:50:15 +0000"  >&lt;p&gt;Closing this out, but I&apos;ll be keeping my &#128064; on this mutex.&lt;/p&gt;</comment>
                            <comment id="5856323" author="JIRAUSER1263826" created="Mon, 6 Nov 2023 11:14:09 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=mark.benvenuto%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;mark.benvenuto@mongodb.com&quot;&gt;mark.benvenuto@mongodb.com&lt;/a&gt; How much is this affecting performance? &lt;/p&gt;</comment>
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