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    <title>MongoDB Jira</title>
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    <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-36979] Aborting a transaction must abort WUOW before releasing locks.</title>
                <link>https://jira.mongodb.org/browse/SERVER-36979</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When we abort a transaction from the expired transactions reaper (or otherwise outside the transaction), we call code in ~TxnResources which calls _locker-&amp;gt;endWriteUnitOfWork, then _recoveryUnit-&amp;gt;abortWriteUnitOfWork.  In the usual case of allowing a WUOW to go out of scope, we call recoveryUnit-&amp;gt;abortUnitOfWork and then lockState-&amp;gt;endWriteUnitOfWork.   The second order is correct.  Calling endWriteUnitOfWork releases locks, but some of the internal machinery of abortUnitOfWork may require resources protected by those locks.  In particular, in BF-10436, aborting an insert() expected the WiredTigerRecordStore to be available, but a concurrent dropCollection caused it to be destroyed.&lt;/p&gt;

&lt;p&gt;Note the incorrect same ordering is used in ~OplogSlotReserver.&lt;/p&gt;</description>
                <environment></environment>
        <key id="599426">SERVER-36979</key>
            <summary>Aborting a transaction must abort WUOW before releasing locks.</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="matthew.russotto@mongodb.com">Matthew Russotto</assignee>
                                    <reporter username="matthew.russotto@mongodb.com">Matthew Russotto</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Sep 2018 19:54:10 +0000</created>
                <updated>Sun, 29 Oct 2023 22:28:28 +0000</updated>
                            <resolved>Wed, 3 Oct 2018 15:50:34 +0000</resolved>
                                                    <fixVersion>4.0.4</fixVersion>
                    <fixVersion>4.1.4</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="2035934" author="xgen-internal-githook" created="Fri, 19 Oct 2018 15:03:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Matthew Russotto&apos;, &apos;email&apos;: &apos;matthew.russotto@10gen.com&apos;, &apos;username&apos;: &apos;mtrussotto&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36979&quot; title=&quot;Aborting a transaction must abort WUOW before releasing locks.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36979&quot;&gt;&lt;del&gt;SERVER-36979&lt;/del&gt;&lt;/a&gt; Aborting a transaction must abort WUOW before releasing locks.&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/899680b82d19b93fbc36007c192e9b294138f58e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/899680b82d19b93fbc36007c192e9b294138f58e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2022364" author="xgen-internal-githook" created="Wed, 3 Oct 2018 15:48:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Matthew Russotto&apos;, &apos;email&apos;: &apos;matthew.russotto@10gen.com&apos;, &apos;username&apos;: &apos;mtrussotto&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36979&quot; title=&quot;Aborting a transaction must abort WUOW before releasing locks.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36979&quot;&gt;&lt;del&gt;SERVER-36979&lt;/del&gt;&lt;/a&gt; Aborting a transaction must abort WUOW before releasing locks.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a106c80c19b9265a2364d3d6386aef25cf23c322&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a106c80c19b9265a2364d3d6386aef25cf23c322&lt;/a&gt;&lt;/p&gt;</comment>
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