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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-54948] Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent</title>
                <link>https://jira.mongodb.org/browse/SERVER-54948</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;tt&gt;enableSharding&lt;/tt&gt; operation just enables the &lt;tt&gt;sharded:true&lt;/tt&gt; bit on the entry for a specific database, but doesn&apos;t bump the database version, nor involves the database primary. This means that calling &lt;tt&gt;enableSharding&lt;/tt&gt; from one MongoS and then performing &lt;tt&gt;shardCollection&lt;/tt&gt; through another may cause the DB Primary executing the &lt;tt&gt;shardCollection&lt;/tt&gt; procedure to not see the field enabled and fail the operation.&lt;/p&gt;

&lt;p&gt;This used to work when &lt;tt&gt;shardCollection&lt;/tt&gt; executed on the config server, because it was always the primary, but now that it runs on the DB Primary, this is no longer guaranteed.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1639477">SERVER-54948</key>
            <summary>Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent</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="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Thu, 4 Mar 2021 08:31:36 +0000</created>
                <updated>Sun, 29 Oct 2023 21:56:44 +0000</updated>
                            <resolved>Mon, 26 Jul 2021 12:35:41 +0000</resolved>
                                                    <fixVersion>5.0.2</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4108406" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 19:06:19 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3964702" author="xgen-internal-githook" created="Tue, 27 Jul 2021 08:00:18 +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-54948&quot; title=&quot;Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54948&quot;&gt;&lt;del&gt;SERVER-54948&lt;/del&gt;&lt;/a&gt; Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/adfd6ac829be8911de859d300262bf77fb0e8438&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/adfd6ac829be8911de859d300262bf77fb0e8438&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3962438" author="xgen-internal-githook" created="Mon, 26 Jul 2021 12:34:05 +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-54948&quot; title=&quot;Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54948&quot;&gt;&lt;del&gt;SERVER-54948&lt;/del&gt;&lt;/a&gt; Calling `shardCollection` after `enableSharding` from a different MongoS is not causally consistent&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/218536b7a98c7fc05f164db209d0634b2cba4c9c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/218536b7a98c7fc05f164db209d0634b2cba4c9c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3930328" author="pierlauro.sciarelli" created="Tue, 13 Jul 2021 13:13:28 +0000"  >&lt;p&gt;This has unintentionally been fixed under &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54587&quot; title=&quot;Make create collection resilient to stepdowns&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54587&quot;&gt;&lt;del&gt;SERVER-54587&lt;/del&gt;&lt;/a&gt; that &lt;a href=&quot;https://github.com/mongodb/mongo/blob/8f12e6eedc23e67252f5c917098a98e4ff0b14e5/src/mongo/db/s/create_collection_coordinator.cpp#L561&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;added a refresh&lt;/a&gt; in case the db doesn&apos;t seem to be sharded.&lt;/p&gt;
</comment>
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