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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-73751] movePrimary shouldn&apos;t create indexes for sharded collections</title>
                <link>https://jira.mongodb.org/browse/SERVER-73751</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Before &lt;a href=&quot;https://github.com/mongodb/mongo/blob/2b8312d6f28abe4b5b2a5af0b0faea2963db8496/src/mongo/db/cloner.cpp#L560-L580&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;cloning unsharded collections&lt;/a&gt;, the &lt;tt&gt;movePrimary&lt;/tt&gt; operation &lt;a href=&quot;https://github.com/mongodb/mongo/blob/2b8312d6f28abe4b5b2a5af0b0faea2963db8496/src/mongo/db/cloner.cpp#L550-L555&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;creates the indexes that are not present on the destination shard&lt;/a&gt; (i.e. the candidate to be primary). This creation of indexes was designed for unsharded collections: since the collection doesn&apos;t exist on the destination shard, we create the indexes assuming that the collection doesn&apos;t have data. However, we also try to create indexes for sharded collection which is risky because we might hit an invariant if we end up trying to create an index over a collection with data.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2256899">SERVER-73751</key>
            <summary>movePrimary shouldn&apos;t create indexes for sharded collections</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="sergi.mateo-bellido@mongodb.com">Sergi Mateo Bellido</assignee>
                                    <reporter username="sergi.mateo-bellido@mongodb.com">Sergi Mateo Bellido</reporter>
                        <labels>
                    </labels>
                <created>Wed, 8 Feb 2023 11:35:53 +0000</created>
                <updated>Sun, 29 Oct 2023 21:26:42 +0000</updated>
                            <resolved>Wed, 22 Feb 2023 14:12:17 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                    <fixVersion>5.0.16</fixVersion>
                    <fixVersion>6.0.6</fixVersion>
                    <fixVersion>6.3.0-rc2</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5301704" author="xgen-internal-githook" created="Mon, 27 Mar 2023 06:05:36 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Sergi Mateo Bellido&apos;, &apos;email&apos;: &apos;sergi.mateo-bellido@mongodb.com&apos;, &apos;username&apos;: &apos;smateo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73751&quot; title=&quot;movePrimary shouldn&amp;#39;t create indexes for sharded collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73751&quot;&gt;&lt;del&gt;SERVER-73751&lt;/del&gt;&lt;/a&gt; MovePrimary shouldn&apos;t copy indexes of sharded collections&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c636ba3a9914fd3eddc905d8b1dfc50668e239b4)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8fdd3caaae08ef4f4e97299fb82d802c22c24af6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8fdd3caaae08ef4f4e97299fb82d802c22c24af6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5280203" author="xgen-internal-githook" created="Fri, 17 Mar 2023 12:44:10 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Sergi Mateo Bellido&apos;, &apos;email&apos;: &apos;sergi.mateo-bellido@mongodb.com&apos;, &apos;username&apos;: &apos;smateo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73751&quot; title=&quot;movePrimary shouldn&amp;#39;t create indexes for sharded collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73751&quot;&gt;&lt;del&gt;SERVER-73751&lt;/del&gt;&lt;/a&gt; MovePrimary shouldn&apos;t copy indexes of sharded collections&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c636ba3a9914fd3eddc905d8b1dfc50668e239b4)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bc6fefe4d5870d6e763d2501ae797a0206eb589d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bc6fefe4d5870d6e763d2501ae797a0206eb589d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5280202" author="xgen-internal-githook" created="Fri, 17 Mar 2023 12:41:17 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Sergi Mateo Bellido&apos;, &apos;email&apos;: &apos;sergi.mateo-bellido@mongodb.com&apos;, &apos;username&apos;: &apos;smateo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73751&quot; title=&quot;movePrimary shouldn&amp;#39;t create indexes for sharded collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73751&quot;&gt;&lt;del&gt;SERVER-73751&lt;/del&gt;&lt;/a&gt; MovePrimary shouldn&apos;t copy indexes of sharded collections&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c636ba3a9914fd3eddc905d8b1dfc50668e239b4)&lt;br/&gt;
Branch: v6.3&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/988151ae978b51b5c4c9b28424c96ab6b0a436ce&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/988151ae978b51b5c4c9b28424c96ab6b0a436ce&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5220448" author="xgen-internal-githook" created="Wed, 22 Feb 2023 12:29:33 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Sergi Mateo Bellido&apos;, &apos;email&apos;: &apos;sergi.mateo-bellido@mongodb.com&apos;, &apos;username&apos;: &apos;smateo&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73751&quot; title=&quot;movePrimary shouldn&amp;#39;t create indexes for sharded collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73751&quot;&gt;&lt;del&gt;SERVER-73751&lt;/del&gt;&lt;/a&gt; MovePrimary shouldn&apos;t copy indexes of sharded collections&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c636ba3a9914fd3eddc905d8b1dfc50668e239b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c636ba3a9914fd3eddc905d8b1dfc50668e239b4&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2271805">SERVER-74252</issuekey>
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            <issuekey id="2254052">SERVER-73665</issuekey>
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