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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-8199] Tutorials for migrating data into Atlas</title>
                <link>https://jira.mongodb.org/browse/DOCS-8199</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;CC: &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kip.iwakiri&quot; class=&quot;user-hover&quot; rel=&quot;kip.iwakiri&quot;&gt;kip.iwakiri&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;We should tutorials a few scenarios with example commands to run, and a summary of tradeoffs, potential pitfalls&lt;/p&gt;

&lt;p&gt;For example, a dump and load via pipe in one command:&lt;/p&gt;

&lt;p&gt;mongodump --host someHost --username someName --password somePw --authenticationDatabase admin --ssl --archive --db someDb | mongorestore --host someOtherHost --ssl --username someOtherName --password someOtherPw --authenticationDatabase admin --archive --db someDb&lt;/p&gt;

&lt;p&gt;We should describe&lt;br/&gt;
1) Migrate an existing replica set (whether under load or not) without caring about isolating to a particular point in time or syncing all changes (easiest, using mongodump | mongorestore)&lt;/p&gt;

&lt;p&gt;2) Migrating an existing replica set, including grabbing changes during the load process. Two methods can do this&lt;br/&gt;
   &lt;b&gt;Method 1)&lt;/b&gt; mongodump and mongorestore with the oplog flag&lt;br/&gt;
      &amp;lt;-- drawback is that the destination replica set will stop receiving writes the moment the load finishes (and since the load finishes at a nondeterministic time, it&apos;s difficult to use this scenario for a hot app-flip-over)&lt;/p&gt;

&lt;p&gt;   &lt;b&gt;Method 2--with caveats that mongo-connector isn&apos;t officially supported)&lt;/b&gt; mongodump, mongorestore, and mongo-connector together (&lt;a href=&quot;https://github.com/mongodb-labs/mongo-connector/wiki/Usage%20with%20MongoDB#using-mongodump-and-mongo-connector-together&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb-labs/mongo-connector/wiki/Usage%20with%20MongoDB#using-mongodump-and-mongo-connector-together&lt;/a&gt;)&lt;br/&gt;
      &lt;em&gt;Upside&lt;/em&gt; is, if it succeeds, the destination replica set will be kept in sync (or nearly) the source cluster, allowing a hot application flip-over to be undertaken at an optimal time.&lt;br/&gt;
      &lt;em&gt;Downside&lt;/em&gt; is that the mongo-connector is not officially supported; written in python and therefore single-threaded, so will potentially not be able to keep up for high throughput workloads.&lt;/p&gt;</description>
                <environment></environment>
        <key id="298077">DOCS-8199</key>
            <summary>Tutorials for migrating data into Atlas</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="9">Done</resolution>
                                        <assignee username="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="andrew.davidson@mongodb.com">Andrew Davidson</reporter>
                        <labels>
                    </labels>
                <created>Fri, 1 Jul 2016 20:46:29 +0000</created>
                <updated>Wed, 10 Aug 2016 16:32:09 +0000</updated>
                            <resolved>Wed, 10 Aug 2016 15:12:11 +0000</resolved>
                                                                    <component>Atlas</component>
                        <due>Mon, 8 Aug 2016 00:00:00 +0000</due>
                            <votes>1</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1353008" author="andrew.davidson@10gen.com" created="Wed, 10 Aug 2016 16:32:09 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kay.kim&quot; class=&quot;user-hover&quot; rel=&quot;kay.kim&quot;&gt;kay.kim&lt;/a&gt; Awesome: Thank you!&lt;/p&gt;</comment>
                            <comment id="1352869" author="kay.kim@10gen.com" created="Wed, 10 Aug 2016 15:12:11 +0000"  >&lt;p&gt;Hey &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=andrew.davidson&quot; class=&quot;user-hover&quot; rel=&quot;andrew.davidson&quot;&gt;andrew.davidson&lt;/a&gt; &amp;#8211;  I put the following in.  Give a holler if you want that tweaked or whatnot.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.atlas.mongodb.com/faq/#can-i-bring-an-existing-mongodb-deployment-into-service-fullname-for-management&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.atlas.mongodb.com/faq/#can-i-bring-an-existing-mongodb-deployment-into-service-fullname-for-management&lt;/a&gt;&lt;/p&gt;</comment>
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