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    <title>MongoDB Jira</title>
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    <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>[DOCS-13787] Large Number Of Collections Section References Removed Configuration Option</title>
                <link>https://jira.mongodb.org/browse/DOCS-13787</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;p&gt;The section on &lt;a href=&quot;#large-number-of-collections&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;large number of collections&lt;/a&gt;] states, &quot;For each&#160;database, a single namespace file (i.e.&#160;&amp;lt;database&amp;gt;.ns) stores all meta-data for that database, and each index and collection has its own entry in the namespace file. MongoDB places&#160;limits&#160;on&#160;the&#160;size&#160;of&#160;namespace&#160;files.&quot;&lt;/p&gt;

&lt;p&gt;However, &lt;a href=&quot;#removed-mmapv1-options&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;removed mmapv1 options&lt;/a&gt;] states that the ability to change nssize was removed as it is a&#160;MMAPv1-specific configuration option.&lt;/p&gt;

&lt;p&gt;Additionally, the 4.0 version of the docs say that &lt;a href=&quot;#Number-of-Namespaces&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;WiredTiger is not subject to a limitation in the size of the namespace file&lt;/a&gt;]. I&apos;m unsure as to why this section was removed for 4.2 as there is a considerable amount of information on the internet about MongoDb&apos;s limit on the number of collections from the days of MMAPv1 - most of that information does not specify that it does not apply to WiredTiger.&lt;/p&gt;

&lt;p&gt;So, I&apos;m assuming that there&apos;s no explicit limit (although I&apos;m sure a practical limit exists). If that&apos;s the case, the section about large numbers of collections should be updated.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
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        <key id="1418894">DOCS-13787</key>
            <summary>Large Number Of Collections Section References Removed Configuration Option</summary>
                <type id="12504" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14700&amp;avatarType=issuetype">Doc Removal</type>
                                            <priority id="5" iconUrl="https://jira.mongodb.org/images/icons/priorities/trivial.svg">Trivial - P5</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="collinscangarella@gmail.com">Collin Scangarella</reporter>
                        <labels>
                    </labels>
                <created>Fri, 24 Jul 2020 00:36:55 +0000</created>
                <updated>Mon, 30 Oct 2023 22:38:17 +0000</updated>
                                            <version>4.2.0</version>
                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4940373" author="edu.bot" created="Mon, 31 Oct 2022 16:04:18 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
                            <comment id="3299955" author="JIRAUSER1254345" created="Fri, 24 Jul 2020 00:40:25 +0000"  >&lt;p&gt;Here are the links from above (which for some reason did not work):&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/manual/core/data-model-operations/#large-number-of-collections&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/core/data-model-operations/#large-number-of-collections&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/manual/reference/configuration-options/#removed-mmapv1-options&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/reference/configuration-options/#removed-mmapv1-options&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.mongodb.com/v4.0/reference/limits/#Number-of-Namespaces&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/v4.0/reference/limits/#Number-of-Namespaces&lt;/a&gt;&lt;/p&gt;</comment>
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