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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-54787] Avoid ShardingRoutingInfoFormatStability serializing DDL operations on the same shard</title>
                <link>https://jira.mongodb.org/browse/SERVER-54787</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Since &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53092&quot; title=&quot;Ensure FCV stability while executing critical paths&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53092&quot;&gt;&lt;del&gt;SERVER-53092&lt;/del&gt;&lt;/a&gt; we are using the &quot;&lt;br/&gt;
ShardingRoutingInfoFormatStability&quot; DistLock to ensure that DDL operations serialize with the patch up of metadata in the configsvr during FCV upgrade. This is to ensure DDL operations see a stable metadata format.&lt;br/&gt;
Currently, the DistLock serializes between &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d1a3ee71e82eb35a7f1e1ea6fcee4fa920317346/src/mongo/db/s/dist_lock_manager.cpp#L111&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;shards and the configsvr&lt;/a&gt; or between &lt;a href=&quot;#L106].&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;threads on the same shard&lt;/a&gt;&lt;br/&gt;
For&#160;ShardingRoutingInfoFormatStability, we only wish to serialize between the configsvr and that shards, but not serialize DDL operations on the same shard.&lt;br/&gt;
For this, we could expose a &quot;lockOnlyRemote&quot; variant of the DistlockManager::lock that only &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d1a3ee71e82eb35a7f1e1ea6fcee4fa920317346/src/mongo/db/s/dist_lock_manager.cpp#L111&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;serializes with the configsvr&lt;/a&gt;, and use it for the ShardingRoutingInfoFormatStability.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1633477">SERVER-54787</key>
            <summary>Avoid ShardingRoutingInfoFormatStability serializing DDL operations on the same shard</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-sharding-emea">[DO NOT USE] Backlog - Sharding EMEA</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
                            <label>PM-1965-Milestone-0</label>
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                <created>Thu, 25 Feb 2021 09:31:59 +0000</created>
                <updated>Tue, 6 Dec 2022 01:33:33 +0000</updated>
                            <resolved>Wed, 3 Mar 2021 16:54:27 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
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