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    <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>[SERVER-53265] ReshardingOplogFetcher uses &quot;secondaryPreferred&quot; read preference instead of &quot;nearest&quot;</title>
                <link>https://jira.mongodb.org/browse/SERVER-53265</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/30d7437961ad9dffbad2d99e2a32947c02637c89/src/mongo/db/s/resharding/resharding_oplog_fetcher.cpp#L176&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;The ReadPreference::Nearest object constructed by ReshardingOplogFetcher is unused&lt;/a&gt; and so &lt;a href=&quot;https://github.com/mongodb/mongo/blob/30d7437961ad9dffbad2d99e2a32947c02637c89/src/mongo/s/client/shard_remote.cpp#L421-L423&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;ShardRemote::runAggregation() ends up using its default read preference of &quot;secondaryPreferred&quot;&lt;/a&gt;.&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;aggRequest.setUnwrappedReadPref(ReadPreferenceSetting{ReadPreference::Nearest}.toContainingBSON());&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;should be set on AggregationRequest constructed in ReshardingOplogFetcher::consume().&lt;/p&gt;</description>
                <environment></environment>
        <key id="1561822">SERVER-53265</key>
            <summary>ReshardingOplogFetcher uses &quot;secondaryPreferred&quot; read preference instead of &quot;nearest&quot;</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="blake.oler@mongodb.com">Blake Oler</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>PM-234-M2</label>
                            <label>PM-234-T-oplog-fetch</label>
                    </labels>
                <created>Tue, 8 Dec 2020 00:08:10 +0000</created>
                <updated>Sun, 29 Oct 2023 21:59:42 +0000</updated>
                            <resolved>Mon, 14 Dec 2020 18:19:15 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3524360" author="xgen-internal-githook" created="Thu, 10 Dec 2020 01:18:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Blake Oler&apos;, &apos;email&apos;: &apos;blake.oler@mongodb.com&apos;, &apos;username&apos;: &apos;BlakeIsBlake&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53265&quot; title=&quot;ReshardingOplogFetcher uses &amp;quot;secondaryPreferred&amp;quot; read preference instead of &amp;quot;nearest&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53265&quot;&gt;&lt;del&gt;SERVER-53265&lt;/del&gt;&lt;/a&gt; Use &quot;nearest&quot; readPreference in ReshardingOplogFetcher&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/20ab705ce483932ad8e2f1c75c797320a21f73c5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/20ab705ce483932ad8e2f1c75c797320a21f73c5&lt;/a&gt;&lt;/p&gt;</comment>
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