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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-62554] Add orphans info in `collStats` aggregation stage output</title>
                <link>https://jira.mongodb.org/browse/SERVER-62554</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;With the introduction of ranges, chunks distribution will become much less meaningful to evaluate whether a collection is balanced or not.&lt;/p&gt;

&lt;p&gt;Objective of this ticket is to return orphans as part of the &lt;a href=&quot;https://docs.mongodb.com/manual/reference/operator/aggregation/collStats/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;collStats&lt;/tt&gt; aggregation stage&lt;/a&gt;&apos;s output so that users can rely on some new metric to evaluate the balancing status.&lt;/p&gt;

&lt;p&gt;To get the actual size of a collection on a shard, some example of metrics may be &lt;tt&gt;dataSize - orphansSize&lt;/tt&gt; or &lt;tt&gt;countDocuments - countOrphans&lt;/tt&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1962626">SERVER-62554</key>
            <summary>Add orphans info in `collStats` aggregation stage output</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="allison.easton@mongodb.com">Allison Easton</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>pm-2323-orphans-tracking</label>
                    </labels>
                <created>Wed, 12 Jan 2022 16:28:22 +0000</created>
                <updated>Sun, 29 Oct 2023 21:44:13 +0000</updated>
                            <resolved>Mon, 14 Mar 2022 08:52:51 +0000</resolved>
                                                    <fixVersion>6.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="4406313" author="xgen-internal-githook" created="Fri, 11 Mar 2022 13:44:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Allison Easton&apos;, &apos;email&apos;: &apos;allison.easton@mongodb.com&apos;, &apos;username&apos;: &apos;allisoneaston&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62554&quot; title=&quot;Add orphans info in `collStats` aggregation stage output&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62554&quot;&gt;&lt;del&gt;SERVER-62554&lt;/del&gt;&lt;/a&gt; Add orphans info in `collStats` aggregation stage output&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f690e6856e9cbc7ee1bc3bcf20dfa4eed6621e2a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f690e6856e9cbc7ee1bc3bcf20dfa4eed6621e2a&lt;/a&gt;&lt;/p&gt;</comment>
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                <issuelinks>
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                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="1978258">SERVER-63335</issuekey>
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                                                                <inwardlinks description="is depended on by">
                                        <issuelink>
            <issuekey id="2011043">SERVER-65014</issuekey>
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            <issuekey id="2000281">DOCS-15171</issuekey>
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                            <attachment id="368191" name="sharded-aggregation.json" size="57192" author="allison.easton@mongodb.com" created="Thu, 24 Mar 2022 09:01:09 +0000"/>
                            <attachment id="368192" name="sharded-runCommand.json" size="85349" author="allison.easton@mongodb.com" created="Thu, 24 Mar 2022 09:01:09 +0000"/>
                            <attachment id="368193" name="unsharded-aggregation.json" size="27395" author="allison.easton@mongodb.com" created="Thu, 24 Mar 2022 09:01:09 +0000"/>
                            <attachment id="368194" name="unsharded-runCommand.json" size="28030" author="allison.easton@mongodb.com" created="Thu, 24 Mar 2022 09:01:09 +0000"/>
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