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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-54488] Rename Collection might take the unsharded path while sharding a collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-54488</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The new rename collection is checking if the source collection is sharded without any lock before &lt;a href=&quot;https://github.com/mongodb/mongo/blob/399ce1d4f498b815290cd0f16c881e0e22ebeda8/src/mongo/db/s/shardsvr_rename_collection_command.cpp#L122&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;choosing which path to take&lt;/a&gt;. This leaves the following scenario to happen:&lt;/p&gt;

&lt;p&gt;0. Create an unsharded collection&lt;br/&gt;
1. Run a rename collection which chooses the unsharded rename path&lt;br/&gt;
2. A shard collection runs and successfully shards the collection&lt;br/&gt;
3. The rename fails because the source collection &lt;a href=&quot;https://github.com/mongodb/mongo/blob/399ce1d4f498b815290cd0f16c881e0e22ebeda8/src/mongo/db/s/shardsvr_rename_collection_command.cpp#L72&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;must not be sharded&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;We could move the unsharded path to inside the coordinator, so the choice can be taken after serializing with other DDL operations.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1622343">SERVER-54488</key>
            <summary>Rename Collection might take the unsharded path while sharding a collection</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</reporter>
                        <labels>
                            <label>PM-1965-Milestone-0</label>
                    </labels>
                <created>Fri, 12 Feb 2021 14:30:24 +0000</created>
                <updated>Sun, 29 Oct 2023 21:57:37 +0000</updated>
                            <resolved>Fri, 19 Feb 2021 19:32:27 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3627260" author="xgen-internal-githook" created="Mon, 22 Feb 2021 12:44:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54488&quot; title=&quot;Rename Collection might take the unsharded path while sharding a collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54488&quot;&gt;&lt;del&gt;SERVER-54488&lt;/del&gt;&lt;/a&gt; Fix rename code checking for multiversion suites&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/042dfa405eea58ff735e338688ffa9f3fd8bbaf0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/042dfa405eea58ff735e338688ffa9f3fd8bbaf0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3625379" author="xgen-internal-githook" created="Fri, 19 Feb 2021 17:14:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54488&quot; title=&quot;Rename Collection might take the unsharded path while sharding a collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54488&quot;&gt;&lt;del&gt;SERVER-54488&lt;/del&gt;&lt;/a&gt; Rename Collection might take the unsharded path while sharding a collection&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e9f91c18323784288cd89cbbb70bc0eca8e89aae&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e9f91c18323784288cd89cbbb70bc0eca8e89aae&lt;/a&gt;&lt;/p&gt;</comment>
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