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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-36873] ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor</title>
                <link>https://jira.mongodb.org/browse/SERVER-36873</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;tt&gt;ReplicationCoordinatorExternalStateImpl::shutdown()&lt;/tt&gt; holds &lt;tt&gt;_threadMutex&lt;/tt&gt; while&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/3d7d2b79988733cefe044c5e0812e12d01f70876/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L385&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;waiting for &lt;tt&gt;_taskExecutor&lt;/tt&gt;&lt;/a&gt;. This is problematic, since the &lt;tt&gt;_taskExecutor&lt;/tt&gt;&apos;s function&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/f66a67ac3e80f4968506cab34ac35668d65a13e6/src/mongo/db/repl/drop_pending_collection_reaper.cpp#L159&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;takes database locks&lt;/a&gt;, so we can wait for database locks while holding &lt;tt&gt;_threadMutex&lt;/tt&gt;. This can lead to deadlock, since we can wait for &lt;tt&gt;_threadMutex&lt;/tt&gt; while holding &lt;tt&gt;ReplicationCoordinatorImpl::_mutex&lt;/tt&gt;, and we can wait for &lt;tt&gt;ReplicationCoordinatorImpl::_mutex&lt;/tt&gt; while holding database locks.&lt;/p&gt;</description>
                <environment></environment>
        <key id="594252">SERVER-36873</key>
            <summary>ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor</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="13201">Fixed</resolution>
                                        <assignee username="tess.avitabile@mongodb.com">Tess Avitabile</assignee>
                                    <reporter username="tess.avitabile@mongodb.com">Tess Avitabile</reporter>
                        <labels>
                    </labels>
                <created>Fri, 24 Aug 2018 22:01:05 +0000</created>
                <updated>Sun, 29 Oct 2023 22:28:38 +0000</updated>
                            <resolved>Thu, 25 Oct 2018 17:11:40 +0000</resolved>
                                    <version>3.6.8</version>
                    <version>4.0.3</version>
                    <version>4.1.3</version>
                                    <fixVersion>3.6.10</fixVersion>
                    <fixVersion>4.0.5</fixVersion>
                    <fixVersion>4.1.5</fixVersion>
                                    <component>Replication</component>
                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2062371" author="xgen-internal-githook" created="Wed, 14 Nov 2018 21:19:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tess Avitabile&apos;, &apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;username&apos;: &apos;tessavitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36873&quot; title=&quot;ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36873&quot;&gt;&lt;del&gt;SERVER-36873&lt;/del&gt;&lt;/a&gt; ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&lt;/p&gt;

&lt;p&gt;(cherry picked from commit bb77630bcf397f309e83d5bc64b86c2269ff4bb9)&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f8e57019c7c6e05de0b0adb029733b9209b8585f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f8e57019c7c6e05de0b0adb029733b9209b8585f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2058573" author="xgen-internal-githook" created="Mon, 12 Nov 2018 14:12:36 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tess Avitabile&apos;, &apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;username&apos;: &apos;tessavitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36873&quot; title=&quot;ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36873&quot;&gt;&lt;del&gt;SERVER-36873&lt;/del&gt;&lt;/a&gt; ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&lt;/p&gt;

&lt;p&gt;(cherry picked from commit bb77630bcf397f309e83d5bc64b86c2269ff4bb9)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7ad4f64b8c88f0249ef6e8f573b71d0509ab699f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7ad4f64b8c88f0249ef6e8f573b71d0509ab699f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2042152" author="xgen-internal-githook" created="Thu, 25 Oct 2018 17:11:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Tess Avitabile&apos;, &apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;username&apos;: &apos;tessavitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36873&quot; title=&quot;ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36873&quot;&gt;&lt;del&gt;SERVER-36873&lt;/del&gt;&lt;/a&gt; ReplicationCoordinatorExternalStateImpl::shutdown() must not hold _threadMutex while waiting for _taskExecutor&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bb77630bcf397f309e83d5bc64b86c2269ff4bb9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bb77630bcf397f309e83d5bc64b86c2269ff4bb9&lt;/a&gt;&lt;/p&gt;</comment>
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