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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-86368] Update refreshTotalCount function in QueryAnalysisSampler to take into account embedded mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-86368</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Right now the &lt;a href=&quot;https://github.com/10gen/mongo/blob/c88453ca0714e6abf9106a121f51fafa5434593c/src/mongo/s/query_analysis_sampler.cpp#L227&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;refreshTotalCount()&lt;/a&gt; function in QueryAnalysisSampler does not take into account an embedded mongos and as a result will give an incorrect count.&lt;/p&gt;

&lt;p&gt;The function needs to be updated so that it satisfies the following criteria (this is from Chou):&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;On a mongod in a standalone replica set, we want to count the update, delete, findAndModify, find, aggregate, count, distinct commands that it executes.&lt;/li&gt;
	&lt;li&gt;On a mongos, we want to count the update, delete, findAndModify, find, aggregate, count, distinct commands that it routes.&lt;/li&gt;
	&lt;li&gt;On a shardsvr mongod without router role, we want to count the nested aggregate commands (i.e. $lookup,$graphLookup and $unionWith) that it routes.&lt;/li&gt;
	&lt;li&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;New&amp;#93;&lt;/span&gt; On a shardsvr mongod with router role, we want to count the nested aggregate commands&#160;&lt;b&gt;AND&lt;/b&gt;&#160;the update, delete, findAndModify, find, aggregate, count, distinct commands it routes (**).&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;(**) is not possible yet because the globalOpCounters count both commands that a mongod receives on the shard port and on the router port. As a result this ticket will also depend &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-79353&quot; title=&quot;(SA) Allow dual `ServerStatusSectionRegistry` based on role&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-79353&quot;&gt;SERVER-79353&lt;/a&gt; being completed.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2570253">SERVER-86368</key>
            <summary>Update refreshTotalCount function in QueryAnalysisSampler to take into account embedded mongos</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="12452" iconUrl="https://jira.mongodb.org/images/icons/statuses/generic.png" description="">Needs Scheduling</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-cluster-scalability">Backlog - Cluster Scalability</assignee>
                                    <reporter username="wenqin.ye@mongodb.com">Wenqin Ye</reporter>
                        <labels>
                    </labels>
                <created>Wed, 7 Feb 2024 19:41:54 +0000</created>
                <updated>Thu, 8 Feb 2024 01:00:33 +0000</updated>
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