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    <description>This file is an XML representation of an issue</description>
    <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-48498] Release RSM&apos;s mutex before notifying replica set change listener</title>
                <link>https://jira.mongodb.org/browse/SERVER-48498</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In StreamableReplicaSetMonitor::onTopologyDescriptionChangedEvent, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/da4c3f11362dacf768d9002d167da991303334e1/src/mongo/client/streamable_replica_set_monitor.cpp#L577&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;we take the RSM&apos;s mutex&lt;/a&gt; and continue to hold it when notifying the replica set change listener on &lt;a href=&quot;https://github.com/mongodb/mongo/blob/da4c3f11362dacf768d9002d167da991303334e1/src/mongo/client/streamable_replica_set_monitor.cpp#L594-L597&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;confirmed set&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/da4c3f11362dacf768d9002d167da991303334e1/src/mongo/client/streamable_replica_set_monitor.cpp#L598-L617&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;possible set&lt;/a&gt; which updates the ShardRegistry. We should release the RSM&apos;s mutex when notifying the RSCL to avoid deadlock with another thread that attempts to access the RSM from the ShardRegistry, namely when another thread is reloading the ShardRegistry and attempts to drop the RSM in question.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1366821">SERVER-48498</key>
            <summary>Release RSM&apos;s mutex before notifying replica set change listener</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="janna.golden@mongodb.com">Janna Golden</assignee>
                                    <reporter username="janna.golden@mongodb.com">Janna Golden</reporter>
                        <labels>
                    </labels>
                <created>Fri, 29 May 2020 17:26:28 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:37 +0000</updated>
                            <resolved>Mon, 1 Jun 2020 19:01:54 +0000</resolved>
                                                    <fixVersion>4.4.0-rc8</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3180356" author="xgen-internal-githook" created="Tue, 2 Jun 2020 14:58:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jannaerin&apos;, &apos;email&apos;: &apos;golden.janna@gmail.com&apos;, &apos;username&apos;: &apos;jannaerin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48498&quot; title=&quot;Release RSM&amp;#39;s mutex before notifying replica set change listener&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48498&quot;&gt;&lt;del&gt;SERVER-48498&lt;/del&gt;&lt;/a&gt; Release RSM&apos;s mutex before notifying replica set change listener&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 912d0ead151bc3a5cac261f07c8453a35a73ad10)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bd8e9b72e85cea81376c212ae73ee0094e22158f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bd8e9b72e85cea81376c212ae73ee0094e22158f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3152905" author="xgen-internal-githook" created="Mon, 1 Jun 2020 18:58:15 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jannaerin&apos;, &apos;email&apos;: &apos;golden.janna@gmail.com&apos;, &apos;username&apos;: &apos;jannaerin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48498&quot; title=&quot;Release RSM&amp;#39;s mutex before notifying replica set change listener&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48498&quot;&gt;&lt;del&gt;SERVER-48498&lt;/del&gt;&lt;/a&gt; Release RSM&apos;s mutex before notifying replica set change listener&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/912d0ead151bc3a5cac261f07c8453a35a73ad10&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/912d0ead151bc3a5cac261f07c8453a35a73ad10&lt;/a&gt;&lt;/p&gt;</comment>
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