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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-46285] Collections should not be visible in CollectionCatalog lookups until storage transaction commit</title>
                <link>https://jira.mongodb.org/browse/SERVER-46285</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Presently, collections created inside multi-document transactions are each individually &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c7f41ef10eefdd8abb5a671a0046f55af310705c/src/mongo/db/catalog/uncommitted_collections.cpp#L130&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;registered&lt;/a&gt; during transaction commit. However, if the transaction gets aborted midway through the commit, those previously registered collections need to be rolled back. &lt;/p&gt;

&lt;p&gt;In order to guarantee transaction isolation, the newly-registered collections should only be visible once the entire transaction has committed.&lt;/p&gt;

&lt;p&gt;One potential solution to achieve this visibility handling is by preventing reads on the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c7f41ef10eefdd8abb5a671a0046f55af310705c/src/mongo/db/catalog/uncommitted_collections.cpp#L127&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;existing minVisibleTimestamp&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1166785">SERVER-46285</key>
            <summary>Collections should not be visible in CollectionCatalog lookups until storage transaction commit</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>Thu, 20 Feb 2020 21:32:58 +0000</created>
                <updated>Sun, 29 Oct 2023 22:11:58 +0000</updated>
                            <resolved>Fri, 28 Feb 2020 17:36:27 +0000</resolved>
                                                    <fixVersion>4.3.4</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2916661" author="xgen-internal-githook" created="Fri, 28 Feb 2020 16:17:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Maria van Keulen&apos;, &apos;username&apos;: &apos;mvankeulen94&apos;, &apos;email&apos;: &apos;maria@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46285&quot; title=&quot;Collections should not be visible in CollectionCatalog lookups until storage transaction commit&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46285&quot;&gt;&lt;del&gt;SERVER-46285&lt;/del&gt;&lt;/a&gt; Ensure transaction isolation of newly-created collections&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/12f4d69ed3108822ef2ae48a01817ef75f20bbe1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/12f4d69ed3108822ef2ae48a01817ef75f20bbe1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2912200" author="maria.vankeulen" created="Wed, 26 Feb 2020 16:38:23 +0000"  >&lt;p&gt;CC &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=louis.williams&quot; class=&quot;user-hover&quot; rel=&quot;louis.williams&quot;&gt;louis.williams&lt;/a&gt; I will confirm whether this addresses &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45060&quot; title=&quot;Operations can use a Collection without having a storage snapshot where that collection is visible&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45060&quot;&gt;&lt;del&gt;SERVER-45060&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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