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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-54355] New createCollection coordinator unconditionally create initial chunks with collection UUID</title>
                <link>https://jira.mongodb.org/browse/SERVER-54355</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If the shardingFullDDLSupportTimestampedVersion feature flags is enable the chunks in config.chunks are indexed by and contains the UUID of the collection. While &lt;a href=&quot;https://github.com/mongodb/mongo/blob/62d7535974b2773a160ef96fd513d3c689fafb97/src/mongo/db/s/shard_collection_legacy.cpp#L631-L637&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the legacy createCollection code takes this into account&lt;/a&gt;, the new createCollection coordinator doesn&apos;t check for this feature flags and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/62d7535974b2773a160ef96fd513d3c689fafb97/src/mongo/db/s/create_collection_coordinator.cpp#L488-L499&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;unconditionally attach the UUID fields to the initial chunks&lt;/a&gt;.&#160;&lt;/p&gt;

&lt;p&gt;We didn&apos;t spot this bug till now because we either test with all the feature flags enable or with all of them disable.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1614300">SERVER-54355</key>
            <summary>New createCollection coordinator unconditionally create initial chunks with collection UUID</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="13202">Works as Designed</resolution>
                                        <assignee username="backlog-server-sharding-emea">[DO NOT USE] Backlog - Sharding EMEA</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                            <label>PM-1965-Milestone-0</label>
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                <created>Fri, 5 Feb 2021 17:41:55 +0000</created>
                <updated>Fri, 27 Oct 2023 13:52:30 +0000</updated>
                            <resolved>Wed, 3 Mar 2021 17:05:14 +0000</resolved>
                                    <version>Backlog</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3644765" author="kaloian.manassiev" created="Wed, 3 Mar 2021 17:05:14 +0000"  >&lt;p&gt;It is the intention that the new DDL coordinator will only know about the new format.&lt;/p&gt;</comment>
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