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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-33197] implement joining behavior for movePrimary on shards</title>
                <link>https://jira.mongodb.org/browse/SERVER-33197</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If a shard gets additional movePrimary commands while it is already processing a movePrimary command, the later movePrimary commands should &quot;join&quot; the first one.&lt;/p&gt;

&lt;p&gt;This should mirror the way &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.7.1/src/mongo/db/s/move_chunk_command.cpp#L123-L146&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;moveChunks &apos;join&apos; an existing moveChunk&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;It will involve creating a new ActiveMovePrimariesRegistry class that mirrors &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.7.1/src/mongo/db/s/active_migrations_registry.h&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ActiveMigrationsRegistry&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.7.1/src/mongo/db/s/sharding_state.h#L320-L321&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;installing an ActiveMovePrimariesRegistry on ShardingState&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Add testing that if multiple movePrimary&apos;s are sent to a shard, only the first one actually executes.&lt;/p&gt;</description>
                <environment></environment>
        <key id="495373">SERVER-33197</key>
            <summary>implement joining behavior for movePrimary on shards</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="13201">Fixed</resolution>
                                        <assignee username="blake.oler@mongodb.com">Blake Oler</assignee>
                                    <reporter username="esha.maharishi@mongodb.com">Esha Maharishi</reporter>
                        <labels>
                    </labels>
                <created>Thu, 8 Feb 2018 21:10:15 +0000</created>
                <updated>Sun, 29 Oct 2023 22:34:58 +0000</updated>
                            <resolved>Tue, 27 Feb 2018 21:09:41 +0000</resolved>
                                                    <fixVersion>3.7.3</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1817733" author="xgen-internal-githook" created="Tue, 27 Feb 2018 21:08:47 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;name&apos;: &apos;Blake Oler&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33197&quot; title=&quot;implement joining behavior for movePrimary on shards&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33197&quot;&gt;&lt;del&gt;SERVER-33197&lt;/del&gt;&lt;/a&gt; Implement joining behavior for movePrimary on shards&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cbe3e978d9fd41b85f2f394ce6182e6579667fd1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cbe3e978d9fd41b85f2f394ce6182e6579667fd1&lt;/a&gt;&lt;/p&gt;</comment>
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