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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-76240] Make sure that an FSync command cannot race with shutdown tasks and restart the FSyncLockThread</title>
                <link>https://jira.mongodb.org/browse/SERVER-76240</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Whether or not this is an issue was being discussed in the PR for &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70444&quot; title=&quot;fsync lock/unlock command fails when primary has not fully shutdown&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70444&quot;&gt;&lt;del&gt;SERVER-70444&lt;/del&gt;&lt;/a&gt;, which is fixing a different problem. From the PR discussion:&lt;/p&gt;

&lt;p&gt;&quot;It looks like exitCleanly(code) is the entry point for shutdown, and it calls &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dd1e452ea9601aabb492f3662eda23c96d0a1126/src/mongo/util/exit.cpp#L112-L113&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this shutdown() function that invariants globalInShutdownDeprecated()&lt;/a&gt;, and then runs the shutdown tasks. Grepping around for `globalInShutdownDeprecated()`, I see it in the connpoon.cpp code. So I don&apos;t think new connections can get in, but an already existing one with perfect timing.... probably could.&quot;&lt;/p&gt;

&lt;p&gt;My recommendation, if confirmed this is an issue, would be to add a globalInShutdownDeprecated() checks in the FSync code after taking a mutex that excludes other fsync operations from making changes (like the shutdown logic).&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2317376">SERVER-76240</key>
            <summary>Make sure that an FSync command cannot race with shutdown tasks and restart the FSyncLockThread</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-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                            <label>techdebt</label>
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                <created>Tue, 18 Apr 2023 14:08:30 +0000</created>
                <updated>Fri, 23 Jun 2023 18:58:36 +0000</updated>
                                                                                                <votes>0</votes>
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