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    <title>MongoDB Jira</title>
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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-46514] Normalize host selection for mirrored reads sampling</title>
                <link>https://jira.mongodb.org/browse/SERVER-46514</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We currently need to send mirrored reads to every eligible host in one burst because it decreases memory pressure. However, this causes irregular traffic patterns. We should solve our memory pressure issues with smart allocations and then send mirrored reads only to a subset of hosts each time.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1205257">SERVER-46514</key>
            <summary>Normalize host selection for mirrored reads sampling</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>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="amirsaman.memaripour@mongodb.com">Amirsaman Memaripour</assignee>
                                    <reporter username="ben.caimano@mongodb.com">Benjamin Caimano</reporter>
                        <labels>
                    </labels>
                <created>Fri, 28 Feb 2020 22:10:24 +0000</created>
                <updated>Mon, 8 Jan 2024 15:23:00 +0000</updated>
                            <resolved>Thu, 16 Apr 2020 19:10:07 +0000</resolved>
                                                    <fixVersion>4.4.0-rc2</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3047927" author="xgen-internal-githook" created="Mon, 20 Apr 2020 19:37:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Amirsaman Memaripour&apos;, &apos;email&apos;: &apos;amirsaman.memaripour@mongodb.com&apos;, &apos;username&apos;: &apos;samanca&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46514&quot; title=&quot;Normalize host selection for mirrored reads sampling&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46514&quot;&gt;&lt;del&gt;SERVER-46514&lt;/del&gt;&lt;/a&gt; Normalize host selection for mirrored reads&lt;/p&gt;

&lt;p&gt;(cherry picked from commit b483650696b6d67dd3c651b3e8cd2926d3776ff3)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/dea8b034f14f20737df28be440305d20b64ed354&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/dea8b034f14f20737df28be440305d20b64ed354&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3047926" author="xgen-internal-githook" created="Mon, 20 Apr 2020 19:37:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Amirsaman Memaripour&apos;, &apos;email&apos;: &apos;amirsaman.memaripour@mongodb.com&apos;, &apos;username&apos;: &apos;samanca&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46514&quot; title=&quot;Normalize host selection for mirrored reads sampling&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46514&quot;&gt;&lt;del&gt;SERVER-46514&lt;/del&gt;&lt;/a&gt; Allow mirroring maestro to leave GC for the client thread&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 6ad41d820bc3827aa295c37f14ef0420f44d3f8a)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ae978b3b05f76f6cdff46e54dd7dfa45b3aac413&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ae978b3b05f76f6cdff46e54dd7dfa45b3aac413&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3043169" author="xgen-internal-githook" created="Thu, 16 Apr 2020 19:08:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Amirsaman Memaripour&apos;, &apos;email&apos;: &apos;amirsaman.memaripour@mongodb.com&apos;, &apos;username&apos;: &apos;samanca&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46514&quot; title=&quot;Normalize host selection for mirrored reads sampling&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46514&quot;&gt;&lt;del&gt;SERVER-46514&lt;/del&gt;&lt;/a&gt; Normalize host selection for mirrored reads&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b483650696b6d67dd3c651b3e8cd2926d3776ff3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b483650696b6d67dd3c651b3e8cd2926d3776ff3&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3043168" author="xgen-internal-githook" created="Thu, 16 Apr 2020 19:08:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Amirsaman Memaripour&apos;, &apos;email&apos;: &apos;amirsaman.memaripour@mongodb.com&apos;, &apos;username&apos;: &apos;samanca&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46514&quot; title=&quot;Normalize host selection for mirrored reads sampling&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46514&quot;&gt;&lt;del&gt;SERVER-46514&lt;/del&gt;&lt;/a&gt; Allow mirroring maestro to leave GC for the client thread&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6ad41d820bc3827aa295c37f14ef0420f44d3f8a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6ad41d820bc3827aa295c37f14ef0420f44d3f8a&lt;/a&gt;&lt;/p&gt;</comment>
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