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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-45440] Add support for implicit operation hedging when using readPreference mode nearest</title>
                <link>https://jira.mongodb.org/browse/SERVER-45440</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Add support for implicit delay selection and opt in to hedge options when using readPreference nearest.&lt;/p&gt;

&lt;p&gt;For all queries with readPreference mode &quot;nearest&quot;, pass hedge options of:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;count = 1&lt;/li&gt;
	&lt;li&gt;delay = as computed by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45449&quot; title=&quot;Write a function to compute the desired latency for a staggered hedged read&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45449&quot;&gt;&lt;del&gt;SERVER-45449&lt;/del&gt;&lt;/a&gt;&lt;/li&gt;
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</description>
                <environment></environment>
        <key id="1082484">SERVER-45440</key>
            <summary>Add support for implicit operation hedging when using readPreference mode nearest</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="cheahuychou.mao@mongodb.com">Cheahuychou Mao</assignee>
                                    <reporter username="mira.carey@mongodb.com">Mira Carey</reporter>
                        <labels>
                    </labels>
                <created>Thu, 9 Jan 2020 18:24:20 +0000</created>
                <updated>Sun, 29 Oct 2023 22:13:32 +0000</updated>
                            <resolved>Sat, 25 Jan 2020 03:32:12 +0000</resolved>
                                                    <fixVersion>4.3.3</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2763964" author="xgen-internal-githook" created="Sat, 25 Jan 2020 02:55:03 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;cheahuychou&apos;, &apos;name&apos;: &apos;Cheahuychou Mao&apos;, &apos;email&apos;: &apos;cheahuychou.mao@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45440&quot; title=&quot;Add support for implicit operation hedging when using readPreference mode nearest&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45440&quot;&gt;&lt;del&gt;SERVER-45440&lt;/del&gt;&lt;/a&gt; Add support for implicit operation hedging when using readPreference mode nearest&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e9aff0aa463d8a85a27e2ca254a6175eb23f2bf8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e9aff0aa463d8a85a27e2ca254a6175eb23f2bf8&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1082848">SERVER-45449</issuekey>
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                            <customfieldvalue>After &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45432&quot; title=&quot;Basic Support for operation hedging in NetworkInterfaceTL&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45432&quot;&gt;&lt;strike&gt;SERVER-45432&lt;/strike&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45434&quot; title=&quot;Modify RemoteCommandRequestOnAny to support hedge options&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45434&quot;&gt;&lt;strike&gt;SERVER-45434&lt;/strike&gt;&lt;/a&gt; are completed, mongos will perform hedged reads by default when the readPreference mode is &#8220;nearest&#8221;.</customfieldvalue>

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