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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-50077] Shard op observer shouldn&apos;t mark collection as unsharded on secondaries</title>
                <link>https://jira.mongodb.org/browse/SERVER-50077</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-47809&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;SERVER-47809&lt;/a&gt; added extra code that inteded to &lt;a href=&quot;https://github.com/mongodb/mongo/commit/30d3f823009e217302e3004e2b9ed4aea11e2792#diff-503526700e3656f4508b7a4e09f657c0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;set the shard version as unsharded&lt;/a&gt; on implicit operations, however, it is also setting secondaries shard version as Unsharded, and, if the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/ff52b7a30a20d21b9468efdf39131a0e90e239b8/src/mongo/db/s/shard_server_catalog_cache_loader.cpp#L946-L961&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;persistence of the chunk metadata update&lt;/a&gt; fails (like for example because of a step down), then secondaries might end with an Unsharded shard version when it should be Unknown.&lt;/p&gt;

&lt;p&gt;Additionally if the shard collection fails to refresh, we should make sure the collection metadata is set to Unknown, to prevent having a wrong shard version even though the write succeeded on the config server.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1426434">SERVER-50077</key>
            <summary>Shard op observer shouldn&apos;t mark collection as unsharded on secondaries</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="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</assignee>
                                    <reporter username="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</reporter>
                        <labels>
                            <label>PM-1645-Milestone-1</label>
                    </labels>
                <created>Mon, 3 Aug 2020 11:34:38 +0000</created>
                <updated>Sun, 29 Oct 2023 22:04:52 +0000</updated>
                            <resolved>Tue, 4 Aug 2020 11:27:21 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3319133" author="xgen-internal-githook" created="Tue, 4 Aug 2020 11:24:05 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Jos&#233; Grillo Ram&#237;rez&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50077&quot; title=&quot;Shard op observer shouldn&amp;#39;t mark collection as unsharded on secondaries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50077&quot;&gt;&lt;del&gt;SERVER-50077&lt;/del&gt;&lt;/a&gt; Set unsharded shard version on collection creation only on primary node on the shard op observer and clear the filtering metadata if the shard register update or the refresh fails on shardCollection&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/71a444f8d9d8cd6841a5e618dcde107334653008&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/71a444f8d9d8cd6841a5e618dcde107334653008&lt;/a&gt;&lt;/p&gt;</comment>
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