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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-60632] Inconsistent error on mongos when renameCollection target already exists</title>
                <link>https://jira.mongodb.org/browse/SERVER-60632</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p/&gt;
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&lt;p&gt;When renaming a collection to a target that already exists (without specifying &lt;tt&gt;dropTarget&lt;/tt&gt;) &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/renameCollection/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;renameCollection&lt;/tt&gt;&lt;/a&gt; will fail with the following:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;errmsg: &quot;target namespace exists&quot;&lt;/li&gt;
	&lt;li&gt;code: 48&lt;/li&gt;
	&lt;li&gt;codeName: &quot;NamespaceExists&quot;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;This corresponds to a documented error code: &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r5.0.3/src/mongo/base/error_codes.yml#L84&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;NamespaceExists(48)&lt;/a&gt; (message: &quot;target namespace exists&quot;).&lt;/p&gt;

&lt;p&gt;On &lt;tt&gt;mongos&lt;/tt&gt;, the command responds is more cryptic:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;errmsg: &quot;Target collection %s exists but dropTarget is not set&quot;&lt;/li&gt;
	&lt;li&gt;code: 5807601&lt;/li&gt;
	&lt;li&gt;codeName: &quot;Location5807601&quot;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;This error code originates from &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r5.0.3/src/mongo/db/s/sharding_ddl_util.cpp#L348&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;checkShardedRenamePreconditions&lt;/tt&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Is it intentional for these errors to be inconsistent?&lt;/p&gt;

&lt;p&gt;Note: This was tested on 5.0.x, but I presume the inconsistency goes back to older server versions.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1896704">SERVER-60632</key>
            <summary>Inconsistent error on mongos when renameCollection target already exists</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="jmikola@mongodb.com">Jeremy Mikola</reporter>
                        <labels>
                    </labels>
                <created>Tue, 12 Oct 2021 21:07:09 +0000</created>
                <updated>Sun, 29 Oct 2023 21:47:29 +0000</updated>
                            <resolved>Mon, 15 Nov 2021 13:58:10 +0000</resolved>
                                    <version>5.0.3</version>
                                    <fixVersion>5.2.0</fixVersion>
                    <fixVersion>5.0.5</fixVersion>
                    <fixVersion>5.1.1</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4197063" author="xgen-internal-githook" created="Thu, 18 Nov 2021 09:41:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60632&quot; title=&quot;Inconsistent error on mongos when renameCollection target already exists&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60632&quot;&gt;&lt;del&gt;SERVER-60632&lt;/del&gt;&lt;/a&gt; return NamespaceExists from mongos when dropTarget=false&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2db00cf3b10b7e380cd0222b50945d2d4a434232&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2db00cf3b10b7e380cd0222b50945d2d4a434232&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4197018" author="xgen-internal-githook" created="Thu, 18 Nov 2021 09:06:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60632&quot; title=&quot;Inconsistent error on mongos when renameCollection target already exists&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60632&quot;&gt;&lt;del&gt;SERVER-60632&lt;/del&gt;&lt;/a&gt; return NamespaceExists from mongos when dropTarget=false&lt;br/&gt;
Branch: v5.1&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8d791cdf65904d31b5dc79a34f4d1082004eb4cf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8d791cdf65904d31b5dc79a34f4d1082004eb4cf&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4188690" author="xgen-internal-githook" created="Mon, 15 Nov 2021 13:57:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60632&quot; title=&quot;Inconsistent error on mongos when renameCollection target already exists&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60632&quot;&gt;&lt;del&gt;SERVER-60632&lt;/del&gt;&lt;/a&gt; return NamespaceExists from mongos when dropTarget=false&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/912d318e7f44241ee6ecacdcffd83f1539c5c43e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/912d318e7f44241ee6ecacdcffd83f1539c5c43e&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2028290">SERVER-65802</issuekey>
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