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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-62849] Drain recoverable RefineCollectionShardKeyCoordinators on FCV downgrade</title>
                <link>https://jira.mongodb.org/browse/SERVER-62849</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62332&quot; title=&quot;RefineCollectionShardKeyCoordinator doesn&amp;#39;t disallow migrations while it&amp;#39;s executing&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62332&quot;&gt;&lt;del&gt;SERVER-62332&lt;/del&gt;&lt;/a&gt; introduced a recoverable ShardingDDLCoordinator for RefineCollectionShardKey. This new coordinator will persist a state document. It is necessary to drain the new coordinators during FCV downgrade in order to ensure that an old binary won&apos;t find state documents about a DDL coordinator it doesn&apos;t support.&lt;/p&gt;

&lt;p&gt;Once this is done, we can also enable the feature flag that guards the new RefineCollectionShardKeyCoordinator.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1968161">SERVER-62849</key>
            <summary>Drain recoverable RefineCollectionShardKeyCoordinators on FCV downgrade</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
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                <created>Fri, 21 Jan 2022 08:27:36 +0000</created>
                <updated>Sun, 29 Oct 2023 21:43:51 +0000</updated>
                            <resolved>Tue, 1 Feb 2022 10:21:41 +0000</resolved>
                                                    <fixVersion>5.3.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4326962" author="xgen-internal-githook" created="Tue, 1 Feb 2022 10:19:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Serra Torrens&apos;, &apos;email&apos;: &apos;jordi.serra-torrens@mongodb.com&apos;, &apos;username&apos;: &apos;jordist&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62849&quot; title=&quot;Drain recoverable RefineCollectionShardKeyCoordinators on FCV downgrade&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62849&quot;&gt;&lt;del&gt;SERVER-62849&lt;/del&gt;&lt;/a&gt; Drain recoverable RefineCollectionShardKeyCoordinators on FCV downgrade&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0374b5211c22c67471bea8dffb0a28b68d1eec1a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0374b5211c22c67471bea8dffb0a28b68d1eec1a&lt;/a&gt;&lt;/p&gt;</comment>
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