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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[DOCS-3374] Roling index build on cluster: the balancer might propagate an index sooner than expected</title>
                <link>https://jira.mongodb.org/browse/DOCS-3374</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;RE:&lt;br/&gt;
&lt;a href=&quot;http://docs.mongodb.org/manual/tutorial/build-indexes-on-replica-sets/#procedure&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/tutorial/build-indexes-on-replica-sets/#procedure&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;We should add a warning or suggestion to disable the balancer during a rolling index creation on a sharded cluster. If you apply an index build to a couple of nodes (of a couple of shards at a time) from a large cluster you can have an index build propagated incidentally by the balancer (chunk move ensures indexes at the destination). This would create an index in the foreground on a primary.&lt;/p&gt;

&lt;p&gt;The incidental propagation of indexes by the balancer has the potential to cause an outage during a rolling index build procedure.&lt;/p&gt;</description>
                <environment></environment>
        <key id="135642">DOCS-3374</key>
            <summary>Roling index build on cluster: the balancer might propagate an index sooner than expected</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>
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                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="andrew.ryder@mongodb.com">Andrew Ryder</reporter>
                        <labels>
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                <created>Fri, 9 May 2014 01:55:43 +0000</created>
                <updated>Wed, 11 Jan 2017 22:38:24 +0000</updated>
                            <resolved>Mon, 30 Jun 2014 22:38:03 +0000</resolved>
                                                    <fixVersion>01112017-cleanup</fixVersion>
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