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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-84738] Fix Data Race in ReshardingCollectionCloner</title>
                <link>https://jira.mongodb.org/browse/SERVER-84738</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;blockquote&gt;&lt;p&gt;Similar to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-82324&quot; title=&quot;Fix data race when reading/writing the logical session id&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-82324&quot;&gt;&lt;del&gt;SERVER-82324&lt;/del&gt;&lt;/a&gt;, the thread in &lt;a href=&quot;https://github.com/mongodb/mongo/blob/32f2c26ae026e19f542cfcbfbbfdf2cbc1b823c2/src/mongo/db/session/kill_sessions_common.cpp#L66&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;kill_sessions_common.cpp&lt;/a&gt; acquires the client lock and reads the logical session id on opCtx, while the thread in &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4332a38fdbb9c370f146dd13c9ab97fe490a6839/src/mongo/db/s/resharding/resharding_collection_cloner.cpp#L355&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resharding_collection_cloner.cpp&lt;/a&gt; sets a new logical session id without the client lock.&lt;/p&gt;&lt;/blockquote&gt;
&lt;p&gt;See &lt;a href=&quot;https://jira.mongodb.org/browse/BF-31329?focusedCommentId=5994550&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-5994550&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;this comment&lt;/a&gt; for full context.&lt;/p&gt;

&lt;p&gt;It didn&apos;t reproduce locally or in &lt;a href=&quot;https://spruce.mongodb.com/version/659daf972a60ed807aec977f/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;a patch&lt;/a&gt;, but it seems like we are pretty confident in the problem and solution based on the stack trace and similar issues in the past.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2542519">SERVER-84738</key>
            <summary>Fix Data Race in ReshardingCollectionCloner</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="brett.nawrocki@mongodb.com">Brett Nawrocki</assignee>
                                    <reporter username="brett.nawrocki@mongodb.com">Brett Nawrocki</reporter>
                        <labels>
                    </labels>
                <created>Wed, 10 Jan 2024 19:58:08 +0000</created>
                <updated>Tue, 16 Jan 2024 17:43:06 +0000</updated>
                            <resolved>Thu, 11 Jan 2024 19:59:02 +0000</resolved>
                                    <version>7.1.0</version>
                    <version>7.3.0-rc0</version>
                    <version>7.2.0</version>
                                    <fixVersion>7.2.1</fixVersion>
                    <fixVersion>7.3.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="6005827" author="xgen-internal-githook" created="Thu, 11 Jan 2024 23:22:35 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Brett Nawrocki&apos;, &apos;email&apos;: &apos;brett.nawrocki@mongodb.com&apos;, &apos;username&apos;: &apos;brettnawrocki&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84738&quot; title=&quot;Fix Data Race in ReshardingCollectionCloner&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84738&quot;&gt;&lt;del&gt;SERVER-84738&lt;/del&gt;&lt;/a&gt; Fix Data Race in ReshardingCollectionCloner&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 3c0ca3e82de5364d031d1bdd9b9c52be0e1f3743)&lt;br/&gt;
Branch: v7.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/021318eaa1e58eee965c29315e1d569d702feadd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/021318eaa1e58eee965c29315e1d569d702feadd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6005135" author="xgen-internal-githook" created="Thu, 11 Jan 2024 19:45:59 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Brett Nawrocki&apos;, &apos;email&apos;: &apos;brett.nawrocki@mongodb.com&apos;, &apos;username&apos;: &apos;brettnawrocki&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84738&quot; title=&quot;Fix Data Race in ReshardingCollectionCloner&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84738&quot;&gt;&lt;del&gt;SERVER-84738&lt;/del&gt;&lt;/a&gt; Fix Data Race in ReshardingCollectionCloner&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 3c0ca3e82de5364d031d1bdd9b9c52be0e1f3743&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b399b9c296a7fb27769ebcce6306424451b41544&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b399b9c296a7fb27769ebcce6306424451b41544&lt;/a&gt;&lt;/p&gt;</comment>
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