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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-9874] Potential deadlock when running connPoolSync</title>
                <link>https://jira.mongodb.org/browse/SERVER-9874</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This was based from a user report at google groups:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://groups.google.com/forum/?hl=en-US&amp;amp;fromgroups#!topic/mongodb-dev/g1BULoCq1ck&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/forum/?hl=en-US&amp;amp;fromgroups#!topic/mongodb-dev/g1BULoCq1ck&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Condition to actually trigger the deadlock (not the just the MutexDebugger warning) is to call connPoolSync when the ReplicaSetMonitor&apos;s master node was flagged as not ok.&lt;/p&gt;

&lt;p&gt;This is not an issue in the master branch because &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6972&quot; title=&quot;C++ driver should use isMaster, not replSetGetStatus, to monitor health of a replica set&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6972&quot;&gt;&lt;del&gt;SERVER-6972&lt;/del&gt;&lt;/a&gt; removed the ScopedDbConnection inside ReplicaSetMonitor::_checkStatus.&lt;/p&gt;</description>
                <environment></environment>
        <key id="78175">SERVER-9874</key>
            <summary>Potential deadlock when running connPoolSync</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="3">Duplicate</resolution>
                                        <assignee username="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Thu, 6 Jun 2013 21:37:16 +0000</created>
                <updated>Wed, 10 Dec 2014 23:05:41 +0000</updated>
                            <resolved>Fri, 16 May 2014 14:25:35 +0000</resolved>
                                    <version>2.0.9</version>
                    <version>2.2.4</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
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