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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-48365] Migration manager recovery should handle a refined shard key</title>
                <link>https://jira.mongodb.org/browse/SERVER-48365</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/300d06e03402aae1240bad4582ad30ea4917e35f/src/mongo/db/s/balancer/balancer.cpp#L362&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;As part restarting the balancer on step up&lt;/a&gt;, the migration manager reschedules migrations with entries in &lt;tt&gt;config.migrations&lt;/tt&gt;, finding the moved chunk by &lt;a href=&quot;https://github.com/mongodb/mongo/blob/300d06e03402aae1240bad4582ad30ea4917e35f/src/mongo/db/s/balancer/migration_manager.cpp#L349-L350&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;searching the latest routing table for each migration&apos;s minimum boundary&lt;/a&gt;. After a shard key refine, this may lead to comparing boundaries with a different number of fields, which can lead to spurious overlap or failure to overlap, triggering incorrect recovery or an unhandled exception. Instead the bounds should be extended to account for the refined key.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1359688">SERVER-48365</key>
            <summary>Migration manager recovery should handle a refined shard key</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Thu, 21 May 2020 16:49:30 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:52 +0000</updated>
                            <resolved>Tue, 21 Jul 2020 22:58:21 +0000</resolved>
                                                    <fixVersion>4.4.1</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3344680" author="xgen-internal-githook" created="Tue, 18 Aug 2020 11:03:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48365&quot; title=&quot;Migration manager recovery should handle a refined shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48365&quot;&gt;&lt;del&gt;SERVER-48365&lt;/del&gt;&lt;/a&gt; Migration manager recovery should handle a refined shard key&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c25095e9a3b3bd3de3f56274ba023823ae83085b)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b55e4c716bc0e23384751f942488fde28f65725b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b55e4c716bc0e23384751f942488fde28f65725b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3295681" author="xgen-internal-githook" created="Tue, 21 Jul 2020 22:49:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48365&quot; title=&quot;Migration manager recovery should handle a refined shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48365&quot;&gt;&lt;del&gt;SERVER-48365&lt;/del&gt;&lt;/a&gt; Migration manager recovery should handle a refined shard key&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c25095e9a3b3bd3de3f56274ba023823ae83085b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c25095e9a3b3bd3de3f56274ba023823ae83085b&lt;/a&gt;&lt;/p&gt;</comment>
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