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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-12311] Compatibility between dumps/restores using different versions</title>
                <link>https://jira.mongodb.org/browse/DOCS-12311</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;Some of our customer have retention requirements to meet that cause them to need to store N years of backups.&lt;/p&gt;

&lt;p&gt;Many of our larger customers are unable to keep up with our release schedule and stay on older versions of our software.&lt;/p&gt;

&lt;p&gt;In both cases, customers have an expectation that they can restore dumps of databases taken from earlier versions into the current version.&#160;&#160;&lt;/p&gt;

&lt;p&gt;Our current stance from a support perspective, is that we do not guarantee that dumps from previous releases will be compatible with current versions.&#160; But that does not appear to actually be stated anywhere in the documentation.&#160;&#160;&lt;/p&gt;

&lt;p&gt;This ticket is a request to formalize our expectation with respect to compatibility between dumps taken on older server versions and being able to restore them to current versions.&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;ul&gt;
	&lt;li&gt;Confirm w/ engineering what if any guarantees we can provide when restoring a &lt;tt&gt;mongodump&lt;/tt&gt; archive to a mongod running a newer version than the snapshot.&lt;/li&gt;
	&lt;li&gt;Document in the mongodump/mongorestore reference pages recommendations / guidance on versioning&lt;/li&gt;
	&lt;li&gt;Document in the backup/restore documentation recommendations/guidance on versioning&lt;/li&gt;
&lt;/ul&gt;


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

&lt;p&gt;This may have some impact on the Atlas docs, as &lt;tt&gt;mongodump&lt;/tt&gt; -&amp;gt; &lt;tt&gt;mongorestore&lt;/tt&gt; acts as a sort of catch-all vector for users that cannot use the other available import methods. We do not currently speak to versioning on the &lt;a href=&quot;https://docs.atlas.mongodb.com/import/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;import docs&lt;/a&gt;. cc &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jonathan.destefano%4010gen.com&quot; class=&quot;user-hover&quot; rel=&quot;jonathan.destefano@10gen.com&quot;&gt;jonathan.destefano@10gen.com&lt;/a&gt;&lt;/p&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="664598">DOCS-12311</key>
            <summary>Compatibility between dumps/restores using different versions</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="arnie.listhaus@mongodb.com">Arnie Listhaus</reporter>
                        <labels>
                            <label>docs-backup</label>
                            <label>docs-restore</label>
                    </labels>
                <created>Wed, 2 Jan 2019 22:41:54 +0000</created>
                <updated>Mon, 30 Oct 2023 20:49:07 +0000</updated>
                                                            <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>tools</component>
                        <due></due>
                            <votes>3</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="4940518" author="edu.bot" created="Mon, 31 Oct 2022 16:06:32 +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="2115640" author="arnold.listhaus" created="Tue, 15 Jan 2019 15:45:22 +0000"  >&lt;p&gt;The metadata files created by 2.4 can contain the keyword&#160;&lt;tt&gt;create&lt;/tt&gt;&#160;e.g.&#160;{{&lt;/p&gt;

&lt;p&gt;{ &quot;options&quot; : &lt;br class=&quot;atl-forced-newline&quot; /&gt;&lt;/p&gt;
{ &quot;create&quot; : &quot;testCollection2&quot; }

&lt;p&gt;}}. This keyword is incompatible with current releases. Unfortunately, there is no fix we can provide for the 2.4 release.&lt;/p&gt;

&lt;p&gt;That said, you could modify the metadata files to remove the&#160;&lt;tt&gt;create&lt;/tt&gt;&#160;keyword (and the associated value) and that would bypass this particular issue.&lt;/p&gt;</comment>
                            <comment id="2104226" author="shannon.bradshaw@10gen.com" created="Thu, 3 Jan 2019 15:04:33 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=benjamin.cefalo&quot; class=&quot;user-hover&quot; rel=&quot;benjamin.cefalo&quot;&gt;benjamin.cefalo&lt;/a&gt; what&apos;s your take on this?&lt;/p&gt;</comment>
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