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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-41632] db.collection.getShardDistribution() shows NaN</title>
                <link>https://jira.mongodb.org/browse/SERVER-41632</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running `db.collection.getShardDistribution()` when collection has no documents shows `NaN` in several aggregations:&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;
&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; estimated docs per chunk : 0Totals&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="796373">SERVER-41632</key>
            <summary>db.collection.getShardDistribution() shows NaN</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="pgilad">Gilad Peleg</reporter>
                        <labels>
                            <label>neweng</label>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Tue, 11 Jun 2019 12:13:27 +0000</created>
                <updated>Sun, 29 Oct 2023 22:20:07 +0000</updated>
                            <resolved>Mon, 1 Jul 2019 21:03:55 +0000</resolved>
                                    <version>3.6.3</version>
                                    <fixVersion>4.0.11</fixVersion>
                    <fixVersion>4.2.0-rc5</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Sharding</component>
                    <component>Shell</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2323610" author="xgen-internal-githook" created="Fri, 12 Jul 2019 18:05:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Randolph Tan&apos;, &apos;email&apos;: &apos;randolph@10gen.com&apos;, &apos;username&apos;: &apos;renctan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41632&quot; title=&quot;db.collection.getShardDistribution() shows NaN&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41632&quot;&gt;&lt;del&gt;SERVER-41632&lt;/del&gt;&lt;/a&gt; Fix division by zero in shell collStats helper&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 83a0d0d890e375dfafe0e464f3f56fbdedf5189e)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/86380492129440f1d150b804810207b079ee8285&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/86380492129440f1d150b804810207b079ee8285&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2317805" author="xgen-internal-githook" created="Tue, 9 Jul 2019 19:56:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Randolph Tan&apos;, &apos;username&apos;: &apos;renctan&apos;, &apos;email&apos;: &apos;randolph@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41632&quot; title=&quot;db.collection.getShardDistribution() shows NaN&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41632&quot;&gt;&lt;del&gt;SERVER-41632&lt;/del&gt;&lt;/a&gt; Fix division by zero in shell collStats helper&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 83a0d0d890e375dfafe0e464f3f56fbdedf5189e)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/40b6fd725ccb0464644b1b9f75b113ebf7ed6a74&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/40b6fd725ccb0464644b1b9f75b113ebf7ed6a74&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2308941" author="pgilad" created="Tue, 2 Jul 2019 10:46:02 +0000"  >&lt;p&gt;Amazing job, thanks!&lt;/p&gt;</comment>
                            <comment id="2307559" author="xgen-internal-githook" created="Mon, 1 Jul 2019 21:02:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Randolph Tan&apos;, &apos;email&apos;: &apos;randolph@10gen.com&apos;, &apos;username&apos;: &apos;renctan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41632&quot; title=&quot;db.collection.getShardDistribution() shows NaN&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41632&quot;&gt;&lt;del&gt;SERVER-41632&lt;/del&gt;&lt;/a&gt; Fix division by zero in shell collStats helper&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/83a0d0d890e375dfafe0e464f3f56fbdedf5189e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/83a0d0d890e375dfafe0e464f3f56fbdedf5189e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2280174" author="daniel.hatcher" created="Tue, 11 Jun 2019 19:58:51 +0000"  >&lt;p&gt;Hello Gilad,&lt;/p&gt;

&lt;p&gt;Thanks for the report. I&apos;ve forwarded it along to the appropriate team.&lt;/p&gt;

&lt;p&gt;Danny&lt;/p&gt;</comment>
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	&lt;li&gt;Create a new collection&lt;/li&gt;
	&lt;li&gt;Shard collection&lt;/li&gt;
	&lt;li&gt;run `db.collection.getShardDistribution()`&lt;/li&gt;
	&lt;li&gt;See `NaN` in aggregations&lt;/li&gt;
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