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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-52653] Transition resharding coordinator to kDone without bumping shard versions</title>
                <link>https://jira.mongodb.org/browse/SERVER-52653</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When the ReshardingCoordinatorService tries to persist its transition to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff6685cf6fa936ab8b8769f496e5a6e35dba228e/src/mongo/db/s/resharding/resharding_coordinator_service.cpp#L894&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;kDone&lt;/a&gt;, it calls it tries to do so via&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff6685cf6fa936ab8b8769f496e5a6e35dba228e/src/mongo/db/s/resharding/resharding_coordinator_service.cpp#L909&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resharding::persistStateTransitionAndCatalogUpdatesThenBumpShardVersions&lt;/a&gt;. However, at this point, we do not want to bump the shard version of the collection (see &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff6685cf6fa936ab8b8769f496e5a6e35dba228e/src/mongo/db/s/resharding/resharding_coordinator_service.cpp#L417&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;notifyForStateTransition&lt;/a&gt;) and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff6685cf6fa936ab8b8769f496e5a6e35dba228e/src/mongo/db/s/resharding/resharding_coordinator_service.cpp#L578&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;will hit an invariant&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Our current testing does not catch this because it tests the transition to kDone by calling &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff6685cf6fa936ab8b8769f496e5a6e35dba228e/src/mongo/db/s/resharding/resharding_coordinator_service.cpp#L610-L620&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;removeCoordinatorDocAndReshardingFields&lt;/a&gt;, which is a function only called by the test that no longer accurately mirrors the coordinator&apos;s code flow since&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51291&quot; title=&quot;Increment shard version when changing original or temporary resharding collection&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51291&quot;&gt;&lt;del&gt;SERVER-51291&lt;/del&gt;&lt;/a&gt;.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1535291">SERVER-52653</key>
            <summary>Transition resharding coordinator to kDone without bumping shard versions</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="blake.oler@mongodb.com">Blake Oler</assignee>
                                    <reporter username="haley.connelly@mongodb.com">Haley Connelly</reporter>
                        <labels>
                            <label>PM-234-M2</label>
                            <label>PM-234-T-lifecycle</label>
                    </labels>
                <created>Thu, 5 Nov 2020 23:14:29 +0000</created>
                <updated>Sun, 29 Oct 2023 22:00:48 +0000</updated>
                            <resolved>Wed, 9 Dec 2020 15:01:45 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3522322" author="xgen-internal-githook" created="Wed, 9 Dec 2020 05:00:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Blake Oler&apos;, &apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-52653&quot; title=&quot;Transition resharding coordinator to kDone without bumping shard versions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-52653&quot;&gt;&lt;del&gt;SERVER-52653&lt;/del&gt;&lt;/a&gt; Transition resharding coordinator to kDone without bumping shard versions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c9e03d62975fef4242ecad86e63662e974f4725f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c9e03d62975fef4242ecad86e63662e974f4725f&lt;/a&gt;&lt;/p&gt;</comment>
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