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    <title>MongoDB Jira</title>
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    <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-39566] Questions related to Filtered Replication.</title>
                <link>https://jira.mongodb.org/browse/SERVER-39566</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="689064">SERVER-39566</key>
            <summary>Questions related to Filtered Replication.</summary>
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                                            <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="kelsey.schubert@mongodb.com">Kelsey Schubert</assignee>
                                    <reporter username="Karthick">Karthick [X]</reporter>
                        <labels>
                    </labels>
                <created>Wed, 13 Feb 2019 07:49:11 +0000</created>
                <updated>Thu, 14 Feb 2019 00:12:25 +0000</updated>
                            <resolved>Thu, 14 Feb 2019 00:12:08 +0000</resolved>
                                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2148138" author="thomas.schubert" created="Thu, 14 Feb 2019 00:12:08 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=Karthick&quot; class=&quot;user-hover&quot; rel=&quot;Karthick&quot;&gt;Karthick&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thanks for your report. Please note that the SERVER project is for reporting bugs or feature suggestions for the MongoDB server. The feature you reference is tracked in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9780&quot; title=&quot;Secondaries (priority=0) able to specify filter criteria for the data they receive from the primary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9780&quot;&gt;SERVER-9780&lt;/a&gt;, but I think there are a number of other possible workarounds that may be as performant in your case. Such as initial syncing off of a secondary or using a backup and restore solution.&lt;/p&gt;

&lt;p&gt;Unfortunately, discussion about the best data migration technique to complete this operation require more in depth discussion. For MongoDB-related support discussion please post on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-user group&lt;/a&gt; or &lt;a href=&quot;http://stackoverflow.com/questions/tagged/mongodb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stack Overflow with the &lt;tt&gt;mongodb&lt;/tt&gt; tag&lt;/a&gt;. A question like this involving more discussion would be best posted on the mongodb-users group.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                            <comment id="2146951" author="karthick" created="Wed, 13 Feb 2019 08:25:14 +0000"  >&lt;p&gt;Hi Team,&lt;/p&gt;

&lt;p&gt;Have an urgent requirement.&#160;&lt;/p&gt;

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

&lt;p&gt;1. Need to move around 200 GB of data from one data center to another Data center.&lt;/p&gt;

&lt;p&gt;Thinking of a&#160; filtered replication approach , add a new secondary member to the new Data Center and start replicating databases one after another or collections one after another , so that the writes on the Primary aren&apos;t impacted by the replication process or due any unforeseen latency.. Repeat the process for 2 more nodes and finally decommission nodes in Data center 1.&#160;&lt;/p&gt;

&lt;p&gt;Is this possible and feature (Filtered replication ) already available ?&#160;While the feature of export and import is already available , the data is huge around 200 G and hence looking for a simplistic approach. Please advise.&lt;/p&gt;

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

&lt;p&gt;2.&#160; can we replicate data from a cluster in 3.x version&#160; to another member in 4.0.3&#160; directly ?&lt;/p&gt;

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

&lt;p&gt;&#160;&lt;/p&gt;</comment>
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