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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-81596] Fix Race in index_operations_abort_concurrent_outgoing_migrations.js</title>
                <link>https://jira.mongodb.org/browse/SERVER-81596</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When featureFlagShardKeyIndexOptionalHashedSharding is enabled, index_operations_abort_concurrent_outgoing_migrations.js will &lt;a href=&quot;https://github.com/10gen/mongo/blob/d9de00ea769397da9a1a80e084fa1199cd80f2df/jstests/sharding/index_operations_abort_concurrent_outgoing_migrations.js#L189&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;drop the shard key index&lt;/a&gt; and verify it both aborts the chunk migration and that the index is dropped &lt;a href=&quot;https://github.com/10gen/mongo/blob/d9de00ea769397da9a1a80e084fa1199cd80f2df/jstests/sharding/index_operations_abort_concurrent_outgoing_migrations.js#L193-L196&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;on both shards&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;However, it is possible that the recipient will &lt;a href=&quot;https://github.com/10gen/mongo/blob/d9de00ea769397da9a1a80e084fa1199cd80f2df/src/mongo/db/s/migration_destination_manager.cpp#L1373-L1374&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;recreate the index&lt;/a&gt; before it is dropped on the donor, thus allowing it to persist even after chunk migration is aborted. This will cause the &lt;a href=&quot;https://github.com/10gen/mongo/blob/d9de00ea769397da9a1a80e084fa1199cd80f2df/jstests/sharding/index_operations_abort_concurrent_outgoing_migrations.js#L195-L196&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;associated assertion&lt;/a&gt; to fail in the test.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2455157">SERVER-81596</key>
            <summary>Fix Race in index_operations_abort_concurrent_outgoing_migrations.js</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-cluster-scalability">Backlog - Cluster Scalability</assignee>
                                    <reporter username="brett.nawrocki@mongodb.com">Brett Nawrocki</reporter>
                        <labels>
                            <label>cs-subteam1</label>
                            <label>sharding-nyc-subteam1</label>
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                <created>Fri, 29 Sep 2023 21:24:52 +0000</created>
                <updated>Tue, 12 Dec 2023 17:03:08 +0000</updated>
                                                                            <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
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