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    <link>https://jira.mongodb.org</link>
    <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-46253] Rolling back a partially-committed collection creation transaction can cause catalog inconsistencies</title>
                <link>https://jira.mongodb.org/browse/SERVER-46253</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This scenario can cause catalog inconsistencies.&lt;/p&gt;

&lt;p&gt;Transaction 1 creates collection B&lt;br/&gt;
Transaction 2 creates collection A&lt;br/&gt;
Transaction 2 commits&lt;br/&gt;
Transaction 1 creates collection A&lt;br/&gt;
Transaction 1 attempts to commit, and fails due to conflicting creation of &quot;A&quot;.&lt;/p&gt;

&lt;p&gt;The catalog inconsistency results because as we apply the commit of transaction 1, we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e6a5c661be1d4c33273f73e01665109778ae8333/src/mongo/db/catalog/uncommitted_collections.cpp#L125&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;register&lt;/a&gt; collection B in the catalog before finding out that collection A &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e6a5c661be1d4c33273f73e01665109778ae8333/src/mongo/db/catalog/collection_catalog.cpp#L388-L392&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;failed to be registered&lt;/a&gt;. We do not currently have rollback handling to roll back the registration of collection B.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1162257">SERVER-46253</key>
            <summary>Rolling back a partially-committed collection creation transaction can cause catalog inconsistencies</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="maria.vankeulen@mongodb.com">Maria van Keulen</assignee>
                                    <reporter username="maria.vankeulen@mongodb.com">Maria van Keulen</reporter>
                        <labels>
                    </labels>
                <created>Wed, 19 Feb 2020 18:21:13 +0000</created>
                <updated>Sun, 29 Oct 2023 22:12:02 +0000</updated>
                            <resolved>Wed, 26 Feb 2020 15:41:17 +0000</resolved>
                                                    <fixVersion>4.3.4</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2908979" author="xgen-internal-githook" created="Tue, 25 Feb 2020 23:58:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;mvankeulen94&apos;, &apos;name&apos;: &apos;Maria van Keulen&apos;, &apos;email&apos;: &apos;maria.vankeulen@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46253&quot; title=&quot;Rolling back a partially-committed collection creation transaction can cause catalog inconsistencies&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46253&quot;&gt;&lt;del&gt;SERVER-46253&lt;/del&gt;&lt;/a&gt; Only register rollback handlers for registered collections&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cb5d42042ac8bf546c436a3a707309f02ed75cfc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cb5d42042ac8bf546c436a3a707309f02ed75cfc&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2905069" author="xgen-internal-githook" created="Mon, 24 Feb 2020 16:54:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;mvankeulen94&apos;, &apos;name&apos;: &apos;Maria van Keulen&apos;, &apos;email&apos;: &apos;maria.vankeulen@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46253&quot; title=&quot;Rolling back a partially-committed collection creation transaction can cause catalog inconsistencies&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46253&quot;&gt;&lt;del&gt;SERVER-46253&lt;/del&gt;&lt;/a&gt; Roll back collection registrations during txn abort&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d000968754302bd8ebbeaee3f7fbed6b25778593&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d000968754302bd8ebbeaee3f7fbed6b25778593&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1166785">SERVER-46285</issuekey>
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