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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-72918] Fix theoretical data race in transaction API test</title>
                <link>https://jira.mongodb.org/browse/SERVER-72918</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Transaction API unit test &lt;tt&gt;DoesNotWaitForBestEffortAbortIfCancelled&lt;/tt&gt; accesses an unsynchronized member variable in the test&apos;s mocked transaction API client, which triggered a TSAN failure. The access happens when the transaction API using the mocked client should be blocked on a condition variable, so there shouldn&apos;t be a problem in practice, but we should add synchronization to the mock class to silence TSAN and follow best concurrency practices.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2235049">SERVER-72918</key>
            <summary>Fix theoretical data race in transaction API test</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="jack.mulrow@mongodb.com">Jack Mulrow</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                    </labels>
                <created>Tue, 17 Jan 2023 16:42:46 +0000</created>
                <updated>Sun, 29 Oct 2023 21:28:05 +0000</updated>
                            <resolved>Wed, 18 Jan 2023 20:04:10 +0000</resolved>
                                                    <fixVersion>6.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5121922" author="xgen-internal-githook" created="Wed, 18 Jan 2023 20:02:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jack Mulrow&apos;, &apos;email&apos;: &apos;jack.mulrow@mongodb.com&apos;, &apos;username&apos;: &apos;jsmulrow&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72918&quot; title=&quot;Fix theoretical data race in transaction API test&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-72918&quot;&gt;&lt;del&gt;SERVER-72918&lt;/del&gt;&lt;/a&gt; Use mutex and barrier in MockTransactionClient&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4419a88f35d73f594a0b91e7ee68467d38152671&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4419a88f35d73f594a0b91e7ee68467d38152671&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5118976" author="jack.mulrow" created="Tue, 17 Jan 2023 21:22:56 +0000"  >&lt;p&gt;On closer look, I realized some tests don&apos;t guarantee the best effort abort has run when they expect that, so I&apos;ll also fix that in this ticket.&lt;/p&gt;</comment>
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