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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-14120] Rename Collection can be allowed in Mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-14120</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Generally people are told we cannot  rename a sharded collection. This is not strictly  true,  we could  take a  config lock and update config.collections, config.chunks to have the correct data. This should trigger a config version change that the mongos and ChunkManager would both see.&lt;/p&gt;</description>
                <environment></environment>
        <key id="139440">SERVER-14120</key>
            <summary>Rename Collection can be allowed in Mongos</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="david.b.murphy.tx@gmail.com">David Murphy</reporter>
                        <labels>
                    </labels>
                <created>Sat, 31 May 2014 02:36:20 +0000</created>
                <updated>Thu, 19 Feb 2015 13:10:20 +0000</updated>
                            <resolved>Thu, 19 Feb 2015 13:10:11 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="832605" author="scotthernandez" created="Thu, 19 Feb 2015 13:10:11 +0000"  >&lt;p&gt;Dup of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6063&quot; title=&quot;Support rename collection for sharded collections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6063&quot;&gt;&lt;del&gt;SERVER-6063&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="603498" author="dmurphy" created="Sat, 31 May 2014 13:01:18 +0000"  >&lt;p&gt;No but if you this on top or renaming in each Mongod you would we already have a rename collection at the single shard level. This is extra wrapping needed to allow it at a highest level. The chunk map and the chunkManager are the biggest blockers here as it was cause bad routing plans and not return expected data due to caching &lt;/p&gt;

</comment>
                            <comment id="603371" author="asya" created="Sat, 31 May 2014 07:25:21 +0000"  >&lt;p&gt;Updating the metadata for the collection would not ensure that the collection on the shards was renamed.&lt;/p&gt;</comment>
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