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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-62064] Serialize resharding with other DDL operations on stepup</title>
                <link>https://jira.mongodb.org/browse/SERVER-62064</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Serializeation of DDL operations on step-up is guaranteed by the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/88390273fec728b8b655697cc5d44e369116c6e6/src/mongo/db/s/sharding_ddl_coordinator_service.cpp#L192&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ShardingDDLCoordinator service&lt;/a&gt; that rely on the assumption that all the uncompleted DDL operations store their coordinator document in &lt;a href=&quot;https://github.com/mongodb/mongo/blob/88390273fec728b8b655697cc5d44e369116c6e6/src/mongo/db/namespace_string.cpp#L117-L118&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;config.system.sharding_ddl_coordinators&lt;/a&gt; . &lt;br/&gt;
Resharding is a bit special in this sense because it has its own recovery method running on the CSRS and doesn&apos;t store any coordinator document on the DB primary shard. This means that on stendup other DDL operations could wrongly be executed concurrently with resharding on the same namespace.&lt;br/&gt;
In order to fix this we will create a proper ShardingDDLCoordianator for resharding that will store its coordinator document along with the other DDL operations.&lt;/p&gt;

&lt;p&gt;The coordination of the resharding operation will still be delegated to the CSRS and the new ShardingDDLCoordinator&#160; on the DB primary shard will act just as a pass-through.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1950302">SERVER-62064</key>
            <summary>Serialize resharding with other DDL operations on stepup</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="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                    </labels>
                <created>Wed, 15 Dec 2021 14:40:49 +0000</created>
                <updated>Sun, 29 Oct 2023 21:45:01 +0000</updated>
                            <resolved>Fri, 7 Jan 2022 11:58:46 +0000</resolved>
                                    <version>5.0.0</version>
                    <version>5.2.0</version>
                    <version>5.1.0</version>
                                    <fixVersion>5.3.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4280003" author="xgen-internal-githook" created="Fri, 7 Jan 2022 09:03:30 +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-62064&quot; title=&quot;Serialize resharding with other DDL operations on stepup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62064&quot;&gt;&lt;del&gt;SERVER-62064&lt;/del&gt;&lt;/a&gt; Serialize resharding with other DDL operations on stepup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/86773e0404ac646ad94e510852c0274bb9257b42&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/86773e0404ac646ad94e510852c0274bb9257b42&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1957973">SERVER-62338</issuekey>
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            <issuekey id="1959976">SERVER-62418</issuekey>
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