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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>[DOCS-12438] Docs for TOOLS-1817: Add &apos;preserveUUIDs&apos; flag to restore collections with existing UUIDS</title>
                <link>https://jira.mongodb.org/browse/DOCS-12438</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;blockquote&gt;
&lt;h3&gt;&lt;a name=&quot;Description%3A&quot;&gt;&lt;/a&gt;Description: &lt;/h3&gt;

&lt;p&gt;When we define a new flag for restoring existing UUIDs, it will need to be added to the docs.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;EngineeringTicketDescription%3A&quot;&gt;&lt;/a&gt;Engineering Ticket Description:&lt;/h3&gt;

&lt;p&gt;In MongoDB 3.6, collections can be created in two ways:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;using &lt;tt&gt;create&lt;/tt&gt;, they are assigned a new UUID&lt;/li&gt;
	&lt;li&gt;using &lt;tt&gt;applyOps&lt;/tt&gt;, they can be created with a pre-existing UUID (details TBD)&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;However, creating with a UUID will require special permissions.  We need to create a command line flag to opt into reusing existing UUIDs when restoring and to use the appropriate mechanism if set.  The implications of doing so or not doing so will need to be documented.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Update&lt;/b&gt;: from &lt;a href=&quot;https://jira.mongodb.org/browse/TOOLS-1862&quot; title=&quot;Revise UUID support for MongoDB 3.6&quot; class=&quot;issue-link&quot; data-issue-key=&quot;TOOLS-1862&quot;&gt;&lt;del&gt;TOOLS-1862&lt;/del&gt;&lt;/a&gt; epic, the desired behavior is as follows:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Add a &lt;tt&gt;--preserveUUIDs&lt;/tt&gt; flag&lt;/li&gt;
	&lt;li&gt;With &lt;tt&gt;--preserveUUIDs&lt;/tt&gt;, have the following behaviors:
	&lt;ul&gt;
		&lt;li&gt;Require the &lt;tt&gt;--drop&lt;/tt&gt; flag or abort&lt;/li&gt;
		&lt;li&gt;Require collection metadata to contain UUID info or abort&lt;/li&gt;
		&lt;li&gt;Require the destination to be in FCV 3.6 or abort (&lt;b&gt;MUST check both ways that FCV could appear&lt;/b&gt;)&lt;/li&gt;
		&lt;li&gt;Create collections with the desired UUID with a synthesized &lt;tt&gt;applyOps&lt;/tt&gt; command
		&lt;ul&gt;
			&lt;li&gt;Follow procedure in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31906&quot; title=&quot;Test that applyOps can clone admin.system.version preserving its UUID&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31906&quot;&gt;&lt;del&gt;SERVER-31906&lt;/del&gt;&lt;/a&gt; for creating &lt;tt&gt;admin.system.version&lt;/tt&gt; with a given UUID&lt;/li&gt;
		&lt;/ul&gt;
		&lt;/li&gt;
		&lt;li&gt;Apply oplog without removing UUIDs&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
&lt;/blockquote&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;
</description>
                <environment></environment>
        <key id="685269">DOCS-12438</key>
            <summary>Docs for TOOLS-1817: Add &apos;preserveUUIDs&apos; flag to restore collections with existing UUIDS</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="-1">Unassigned</assignee>
                                    <reporter username="kay.kim@mongodb.com">Kay Kim</reporter>
                        <labels>
                    </labels>
                <created>Thu, 7 Feb 2019 13:50:20 +0000</created>
                <updated>Mon, 13 Nov 2023 18:25:35 +0000</updated>
                            <resolved>Fri, 13 Dec 2019 17:00:53 +0000</resolved>
                                                    <fixVersion>4.0.0-rc0</fixVersion>
                    <fixVersion>3.7.10</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2607130" author="xgen-internal-githook" created="Fri, 13 Dec 2019 17:07:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kay Kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;username&apos;: &apos;kay-kim&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12438&quot; title=&quot;Docs for TOOLS-1817: Add &amp;#39;preserveUUIDs&amp;#39; flag to restore collections with existing UUIDS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12438&quot;&gt;&lt;del&gt;DOCS-12438&lt;/del&gt;&lt;/a&gt;: mongorestore --preserveUUID&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/9486f4bca4c9701d0e4c604d6b122d30cf097fc2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/9486f4bca4c9701d0e4c604d6b122d30cf097fc2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2607126" author="xgen-internal-githook" created="Fri, 13 Dec 2019 17:06:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kay Kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;username&apos;: &apos;kay-kim&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12438&quot; title=&quot;Docs for TOOLS-1817: Add &amp;#39;preserveUUIDs&amp;#39; flag to restore collections with existing UUIDS&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12438&quot;&gt;&lt;del&gt;DOCS-12438&lt;/del&gt;&lt;/a&gt;: mongorestore --preserveUUID&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/01314955a7de4f058e516d75ab26640b80f73035&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/01314955a7de4f058e516d75ab26640b80f73035&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                            <outwardlinks description="documents">
                                        <issuelink>
            <issuekey id="444633">TOOLS-1817</issuekey>
        </issuelink>
                            </outwardlinks>
                                                        </issuelinktype>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="685268">DOCS-12437</issuekey>
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