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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-82085] Race condition between $out to timeseries and shard collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-82085</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;At the end of a $out operation, the temporary collection is renamed to the output namespace. For timeseries collections &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c0192285898f774c7682907858c7f22eccd68e7c/src/mongo/db/pipeline/document_source_out.cpp#L276-L286&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;it is the buckets collection what gets renamed&lt;/a&gt;. &lt;/p&gt;

&lt;p&gt;It would be wrong that this rename causes a buckets collection test.system.buckets.foo to appear when there&apos;s already a test.foo sharded collection. To prevent that, _internalRenameIfOptionsAndIndexesMatch has a check to ensure that the destination collection is not sharded. However, the implementation (&lt;a href=&quot;https://github.com/mongodb/mongo/blob/c0192285898f774c7682907858c7f22eccd68e7c/src/mongo/db/commands/internal_rename_if_options_and_indexes_match_cmd.cpp#L100&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt; on master, and&lt;a href=&quot;https://github.com/mongodb/mongo/blob/64486054a81a666cbe921860fcbcbd87f441abf6/src/mongo/db/commands/internal_rename_if_options_and_indexes_match_cmd.cpp#L111-L113&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here &lt;/a&gt; on v7.0) of it is wrong for timeseries: It only checks that the buckets collection is not sharded, rather than the undelying view namespace&lt;/p&gt;</description>
                <environment></environment>
        <key id="2471753">SERVER-82085</key>
            <summary>Race condition between $out to timeseries and shard collection</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="yujin.kang@mongodb.com">Yujin Kang Park</assignee>
                                    <reporter username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</reporter>
                        <labels>
                            <label>car-qw</label>
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                <created>Wed, 11 Oct 2023 15:02:54 +0000</created>
                <updated>Tue, 23 Jan 2024 23:52:24 +0000</updated>
                                            <version>7.0.0</version>
                    <version>7.2.0-rc0</version>
                    <version>7.1.0</version>
                    <version>7.3.0-rc0</version>
                                                                        <votes>0</votes>
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            <issuekey id="2229253">SERVER-72687</issuekey>
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                            <attachment id="482228" name="0001-Repro-SERVER-82085.patch" size="2331" author="jordi.serra-torrens@mongodb.com" created="Wed, 11 Oct 2023 15:26:24 +0000"/>
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