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    <language>en-us</language>    <build-info>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-76167] Optimize range deletions handling in rename participants</title>
                <link>https://jira.mongodb.org/browse/SERVER-76167</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Rename participants are &lt;a href=&quot;https://github.com/mongodb/mongo/blob/bef6d191884a428941cb83e5c314a527e993a954/src/mongo/db/s/range_deletion_util.cpp#L424&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;snapshotting range deletions by namespace&lt;/a&gt; before restoring them. This results in:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Not using an index while scanning &lt;tt&gt;config.rangeDeletions&lt;/tt&gt; that &lt;a href=&quot;https://github.com/mongodb/mongo/blob/386b1c0c74aa24c306f0ef5bcbde892aec89c8f6/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L990-L997&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;only has a {collectionUUID, min, max} secondary index&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Snapshotting multiple times the same ranges when several renames are executed back and forth between the same namespaces (as in some FSMs)
	&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
		&lt;li&gt;This means exponentially incrementing the number of range deletion documents, making subsequent renames on the same collection slower over time&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2315991">SERVER-76167</key>
            <summary>Optimize range deletions handling in rename participants</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="1" iconUrl="https://jira.mongodb.org/images/icons/statuses/open.png" description="">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-catalog-and-routing">Backlog - Catalog and Routing</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>oldshardingemea</label>
                            <label>shardingemea-qw</label>
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                <created>Mon, 17 Apr 2023 07:56:56 +0000</created>
                <updated>Thu, 26 Oct 2023 09:51:58 +0000</updated>
                                                                            <component>Sharding</component>
                                        <votes>0</votes>
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