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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-78259] Revise strong lock acquisitions on the chunk migrations code path</title>
                <link>https://jira.mongodb.org/browse/SERVER-78259</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of the work to support distributed transactions (under &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38147&quot; title=&quot;Cap donor migration lock acquisition stalls in the presence of active transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38147&quot;&gt;&lt;del&gt;SERVER-38147&lt;/del&gt;&lt;/a&gt;) we decided to cap the donor strong lock acquisitions to 500ms by default in order to avoid shard-wide stalls due to strong locks being stuck behind active transactions (which can possibly have longer duration). The consideration is that while customers have control of when to issue a DDL operation which may take a strong lock, they have no control of when the balancer decides to move chunk.&lt;/p&gt;

&lt;p&gt;This ticket is to consider the same for the recipient side of chunk migration. Specifically we have the following acquisitions:&lt;br/&gt;
Prior to 4.4:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Indexes reconciliation between donor and recipient &lt;a href=&quot;https://github.com/10gen/mongo/blob/r4.2.24/src/mongo/db/s/migration_destination_manager.cpp#L679&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Updating the range deleter state &lt;a href=&quot;https://github.com/10gen/mongo/blob/r4.2.24/src/mongo/db/s/migration_destination_manager.cpp#L1187&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;After 4.4 only the first one remains.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2373189">SERVER-78259</key>
            <summary>Revise strong lock acquisitions on the chunk migrations code path</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="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="nandini.bhartiya@mongodb.com">Nandini Bhartiya</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                            <label>cs-subteam1</label>
                            <label>sharding-nyc-subteam1</label>
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                <created>Tue, 20 Jun 2023 22:03:58 +0000</created>
                <updated>Tue, 12 Dec 2023 17:04:46 +0000</updated>
                                                                            <component>Sharding</component>
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