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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-55681] Collections clustered by _id need to reject duplicate _id values</title>
                <link>https://jira.mongodb.org/browse/SERVER-55681</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Inserts into WiredTigerRecordStore set the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/storage/wiredtiger/wiredtiger_record_store.cpp#L1246&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&quot;overwrite&quot; cursor flag to true in all cases&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Regular collections with a separate _id index reject duplicate _id values by setting the &quot;overwrite&quot; flag to false.&lt;/p&gt;

&lt;p&gt;This is likely not problematic for time-series collections because they use ObjectId, but collisions are possible.&lt;/p&gt;

&lt;p&gt;For clustered collections only, set the &quot;overwrite&quot; flag to false.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1667410">SERVER-55681</key>
            <summary>Collections clustered by _id need to reject duplicate _id values</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="louis.williams@mongodb.com">Louis Williams</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Wed, 31 Mar 2021 23:56:28 +0000</created>
                <updated>Sun, 29 Oct 2023 21:55:33 +0000</updated>
                            <resolved>Wed, 7 Apr 2021 15:35:36 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3707744" author="xgen-internal-githook" created="Thu, 8 Apr 2021 14:19:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55681&quot; title=&quot;Collections clustered by _id need to reject duplicate _id values&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55681&quot;&gt;&lt;del&gt;SERVER-55681&lt;/del&gt;&lt;/a&gt; Prevent clustered_index_types.jsfrom running in parallel suite on&lt;br/&gt;
ephemeralForTest&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/24816f527630968a5047c5f9ab73c793b5b7d5a9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/24816f527630968a5047c5f9ab73c793b5b7d5a9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3705655" author="xgen-internal-githook" created="Wed, 7 Apr 2021 15:34:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-55681&quot; title=&quot;Collections clustered by _id need to reject duplicate _id values&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-55681&quot;&gt;&lt;del&gt;SERVER-55681&lt;/del&gt;&lt;/a&gt; Clustered collections should reject duplicate _id values&lt;/p&gt;

&lt;p&gt;The WiredTigerSessionCache should not mix cursors with different&lt;br/&gt;
overwrite settings.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4a3fb620ac72e380c42e215c74045bee60e16066&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4a3fb620ac72e380c42e215c74045bee60e16066&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1653698">SERVER-55342</issuekey>
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