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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-3539] mongos returns duplicate &quot;ns&quot; element when you run db.xyz.stats() </title>
                <link>https://jira.mongodb.org/browse/SERVER-3539</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When you run db.xyz.stats() via mongos it returns duplicate &quot;ns&quot; element. In my test the xyz collection itself was not sharded. Here&apos;s the output I got:&lt;/p&gt;

&lt;p&gt;&amp;gt; var st = new ShardingTest(&quot;stest&quot;, 2, 0, 3);&lt;br/&gt;
&amp;gt; var mongos = st.s;&lt;br/&gt;
&amp;gt; var sdb = mongos.getDB(&quot;test&quot;)&lt;br/&gt;
&amp;gt; sdb.test.insert(&lt;/p&gt;
{x:1}
&lt;p&gt;) // make sure collection exists&lt;br/&gt;
&amp;gt; sdb.test.stats()&lt;br/&gt;
{&lt;br/&gt;
        &quot;ns&quot; : &quot;test.test&quot;,&lt;br/&gt;
        &quot;sharded&quot; : false,&lt;br/&gt;
        &quot;primary&quot; : &quot;shard0001&quot;,&lt;br/&gt;
        &quot;ns&quot; : &quot;test.test&quot;,               // &amp;lt;=== duplicate &quot;ns&quot; element&lt;br/&gt;
        &quot;count&quot; : 1,&lt;br/&gt;
        &quot;size&quot; : 36,&lt;br/&gt;
        &quot;avgObjSize&quot; : 36,&lt;br/&gt;
        &quot;storageSize&quot; : 2048,&lt;br/&gt;
        &quot;numExtents&quot; : 1,&lt;br/&gt;
        &quot;nindexes&quot; : 1,&lt;br/&gt;
        &quot;lastExtentSize&quot; : 2048,&lt;br/&gt;
        &quot;paddingFactor&quot; : 1,&lt;br/&gt;
        &quot;flags&quot; : 1,&lt;br/&gt;
        &quot;totalIndexSize&quot; : 8192,&lt;br/&gt;
        &quot;indexSizes&quot; : &lt;/p&gt;
{
                &quot;_id_&quot; : 8192
        }
&lt;p&gt;,&lt;br/&gt;
        &quot;ok&quot; : 1&lt;br/&gt;
}&lt;/p&gt;</description>
                <environment></environment>
        <key id="20543">SERVER-3539</key>
            <summary>mongos returns duplicate &quot;ns&quot; element when you run db.xyz.stats() </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="9">Done</resolution>
                                        <assignee username="eliot">Eliot Horowitz</assignee>
                                    <reporter username="robert@mongodb.com">Robert Stam</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Aug 2011 17:19:50 +0000</created>
                <updated>Tue, 12 Jul 2016 00:17:43 +0000</updated>
                            <resolved>Mon, 8 Aug 2011 15:07:34 +0000</resolved>
                                    <version>1.8.2</version>
                                    <fixVersion>1.9.2</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="60568" author="alans" created="Fri, 14 Oct 2011 22:01:05 +0000"  >&lt;p&gt;Please fix this in 1.8 as well since this breaks the tools like MongoVUE. The vast majority of production deployment is still older than 2.0, so back porting is important.&lt;/p&gt;</comment>
                            <comment id="47035" author="auto" created="Mon, 8 Aug 2011 15:07:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: don&apos;t duplicate ns entry for non-sharded collections via mongos &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3539&quot; title=&quot;mongos returns duplicate &amp;quot;ns&amp;quot; element when you run db.xyz.stats() &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3539&quot;&gt;&lt;del&gt;SERVER-3539&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/690505dee9f6b6f56e0c81fd1da27e45dda1f711&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/690505dee9f6b6f56e0c81fd1da27e45dda1f711&lt;/a&gt;&lt;/p&gt;</comment>
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