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    <title>MongoDB Jira</title>
    <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-33719] createCollectionForApplyOps should invariant that collections are not renamed in replication steady state</title>
                <link>https://jira.mongodb.org/browse/SERVER-33719</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;createCollectionForApplyOps runs on secondaries and has functionality to temporarily rename a collection out of the way into a tmp collection, with the expectation that it will be renamed back again. This is for oplog replay when this scenario happens:&lt;/p&gt;

&lt;p&gt;1) createCollection(foo.bar) w/ UUID 1&lt;br/&gt;
2) renameCollection(foo.bar to foo.baz) still w/ UUID 1&lt;br/&gt;
3) createCollection(foo.bar) w/ UUID 2&lt;/p&gt;

&lt;p&gt;createCollectionForApplyOps will rename foo.bar w/ UUID 2 out of the way into a tmp collection when it sees 1) and create foo.bar w/ UUID 1, with the expectation that it will eventually see 3) and rename the tmp collection back.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;However&lt;/b&gt;, this code can leak bugs. When secondaries somehow have a collection that the primary doesn&apos;t, and the primary then creates the collection and the secondaries rename their original collection out of the way, orphaning it.&lt;/p&gt;</description>
                <environment></environment>
        <key id="507091">SERVER-33719</key>
            <summary>createCollectionForApplyOps should invariant that collections are not renamed in replication steady state</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="daniel.ernst@mongodb.com">Daniel Ernst</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Wed, 7 Mar 2018 15:08:30 +0000</created>
                <updated>Sun, 29 Oct 2023 22:34:02 +0000</updated>
                            <resolved>Tue, 7 Jan 2020 15:29:47 +0000</resolved>
                                                    <fixVersion>4.3.3</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2709585" author="xgen-internal-githook" created="Tue, 7 Jan 2020 15:28:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Ernst&apos;, &apos;email&apos;: &apos;daniel.ernst@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33719&quot; title=&quot;createCollectionForApplyOps should invariant that collections are not renamed in replication steady state&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33719&quot;&gt;&lt;del&gt;SERVER-33719&lt;/del&gt;&lt;/a&gt; Invariant if createCollectionForApplyOps renames collection in steady state repl&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1f192f23d93b4e01b96567fa4a1d061b625d95a2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1f192f23d93b4e01b96567fa4a1d061b625d95a2&lt;/a&gt;&lt;/p&gt;</comment>
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                <issuelinks>
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                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="506746">SERVER-33714</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="241486">SERVER-21700</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1422138">SERVER-49930</issuekey>
        </issuelink>
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