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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-46752] moveChunk will keep on returning ShardNotFound until DatabaseVersion is updated</title>
                <link>https://jira.mongodb.org/browse/SERVER-46752</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;At the beginning of chunk migration, we do a &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r4.0.16/src/mongo/db/s/migration_source_manager.cpp#L158&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;force refresh of the collection metadata&lt;/a&gt;, this will eventually call CatalogCache::_getCollectionRoutingInfoAt, which will then call CatalogCache::getDatabase. getDatabase, however will always try to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r4.0.16/src/mongo/s/catalog_cache.cpp#L173&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;call ShardRegistry::getShard of what it thinks is the current primary database&lt;/a&gt;. If the shard has already been removed, then it error out with ShardNotFound.&lt;/p&gt;

&lt;p&gt;To get around this issue, send a flushRouterConfig to the affected shard.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1258041">SERVER-46752</key>
            <summary>moveChunk will keep on returning ShardNotFound until DatabaseVersion is updated</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Tue, 10 Mar 2020 13:50:27 +0000</created>
                <updated>Tue, 6 Dec 2022 02:33:37 +0000</updated>
                            <resolved>Wed, 11 Mar 2020 14:06:02 +0000</resolved>
                                    <version>4.0.16</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2965732" author="renctan" created="Wed, 11 Mar 2020 14:05:13 +0000"  >&lt;p&gt;Oh, that would explain it. The moveChunk command does a reload on the shard registry at the beginning, which will make it remove the shard and mark the database as invalidated.&lt;/p&gt;</comment>
                            <comment id="2962389" author="esha.maharishi@10gen.com" created="Tue, 10 Mar 2020 22:55:24 +0000"  >&lt;p&gt;Maybe it was fixed in 4.4 by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32871&quot; title=&quot;ReplicaSetMonitorRemoved and ShardNotFound errors on fanout query after removing a shard&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32871&quot;&gt;&lt;del&gt;SERVER-32871&lt;/del&gt;&lt;/a&gt;?&lt;/p&gt;</comment>
                            <comment id="2960202" author="renctan" created="Tue, 10 Mar 2020 13:52:25 +0000"  >&lt;p&gt;Attached a js test demonstrating issue. Can easily reproduce in v4.0, but doesn&apos;t appear to fail in current master. Must investigate if it&apos;s already fixed or it&apos;s just harder for the bug to surface.&lt;/p&gt;</comment>
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                            <attachment id="251726" name="test.js" size="1451" author="randolph@mongodb.com" created="Tue, 10 Mar 2020 13:50:45 +0000"/>
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