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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-77688] Consider bypassing ticket acquisition for locks in hot sharding codepaths</title>
                <link>https://jira.mongodb.org/browse/SERVER-77688</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Some locks acquired/release by the internal sharding machinery are &quot;hot&quot; because user operations may be impacted when the acquisition/release is delayed because of tickets unavailability. An example of sensible path is the acquisition/release of the critical section.&lt;/p&gt;

&lt;p&gt;Purpose of this task is to identify such hot paths and consider using &lt;a href=&quot;https://github.com/mongodb/mongo/blob/b32042b0dc2f06a56356eb6a6864394b4af46069/src/mongo/db/concurrency/locker.h#L753&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ScopedAdmissionPriorityForLock&lt;/a&gt; in order to bypass ticketing, similarly to what has been committed under &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-76835&quot; title=&quot;Deadlock in the shard filtering metadata refresh path&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-76835&quot;&gt;&lt;del&gt;SERVER-76835&lt;/del&gt;&lt;/a&gt; to avoid unnecessarily blocking metadata refreshing.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2356039">SERVER-77688</key>
            <summary>Consider bypassing ticket acquisition for locks in hot sharding codepaths</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-catalog-and-routing">Backlog - Catalog and Routing</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>oldshardingemea</label>
                            <label>shardingemea-qw</label>
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                <created>Thu, 1 Jun 2023 15:24:24 +0000</created>
                <updated>Thu, 26 Oct 2023 10:14:06 +0000</updated>
                                                                                                <votes>0</votes>
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