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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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-63049] Track usage of agg accumulators</title>
                <link>https://jira.mongodb.org/browse/SERVER-63049</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We added new accumulators like $topN, $bottomN, but because they are not in the category of the aggregation expressions or match expressions there&apos;s no tracking in the serverStatus() metrics for those.&lt;/p&gt;

&lt;p&gt;Add new section to serverStatus&lt;/p&gt;

&lt;p&gt;db.serverStatus().metrics.operatorCounters.accumulators&lt;/p&gt;

&lt;p&gt;Track all accumulator operators that are supported in &lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/operator/aggregation/group/#accumulator-operator&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;$group&lt;/a&gt; and &lt;a href=&quot;https://www.mongodb.com/docs/v5.3/reference/operator/aggregation/setWindowFields/#std-label-setWindowFields-window-operators&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;$setWindowFields&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1972517">SERVER-63049</key>
            <summary>Track usage of agg accumulators</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="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="timour.katchaounov@mongodb.com">Timour Katchaounov</assignee>
                                    <reporter username="kateryna.kamenieva@mongodb.com">Katya Kamenieva</reporter>
                        <labels>
                    </labels>
                <created>Thu, 27 Jan 2022 18:15:36 +0000</created>
                <updated>Sun, 29 Oct 2023 21:43:31 +0000</updated>
                            <resolved>Thu, 21 Apr 2022 14:55:49 +0000</resolved>
                                                    <fixVersion>6.0.1</fixVersion>
                    <fixVersion>6.1.0-rc0</fixVersion>
                    <fixVersion>5.0.16</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5302085" author="xgen-internal-githook" created="Mon, 27 Mar 2023 10:58:36 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Timour Katchaounov&apos;, &apos;email&apos;: &apos;timour.katchaounov@mongodb.com&apos;, &apos;username&apos;: &apos;timourk&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63049&quot; title=&quot;Track usage of agg accumulators&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63049&quot;&gt;&lt;del&gt;SERVER-63049&lt;/del&gt;&lt;/a&gt; Implemented counters for aggregate accumulator expressions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 2846283187406c3a4022154d640b0b6137531038)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/669f84f58425940d2847971808b6411350daa450&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/669f84f58425940d2847971808b6411350daa450&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4714416" author="xgen-internal-githook" created="Fri, 29 Jul 2022 14:23:53 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Timour Katchaounov&apos;, &apos;email&apos;: &apos;timour.katchaounov@mongodb.com&apos;, &apos;username&apos;: &apos;timourk&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63049&quot; title=&quot;Track usage of agg accumulators&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63049&quot;&gt;&lt;del&gt;SERVER-63049&lt;/del&gt;&lt;/a&gt; Implemented counters for aggregate accumulator expressions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit a3f1584a71210df4ba299d0eb74612302c9371cb)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2846283187406c3a4022154d640b0b6137531038&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2846283187406c3a4022154d640b0b6137531038&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4496737" author="xgen-internal-githook" created="Thu, 21 Apr 2022 12:25:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Timour Katchaounov&apos;, &apos;email&apos;: &apos;timour.katchaounov@mongodb.com&apos;, &apos;username&apos;: &apos;timourk&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63049&quot; title=&quot;Track usage of agg accumulators&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63049&quot;&gt;&lt;del&gt;SERVER-63049&lt;/del&gt;&lt;/a&gt; Implemented counters for aggregate accumulator expressions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a3f1584a71210df4ba299d0eb74612302c9371cb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a3f1584a71210df4ba299d0eb74612302c9371cb&lt;/a&gt;&lt;/p&gt;</comment>
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