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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-1037] Sharding - command to remove or &quot;unshard&quot; a collection</title>
                <link>https://jira.mongodb.org/browse/SERVER-1037</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Still hasn&apos;t come up - so pushing for now unless there is a compelling reason to do sooner.&lt;/p&gt;</description>
                <environment></environment>
        <key id="11820">SERVER-1037</key>
            <summary>Sharding - command to remove or &quot;unshard&quot; a collection</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="kbanker">Kyle Banker</reporter>
                        <labels>
                            <label>sharding-lifecycle</label>
                    </labels>
                <created>Wed, 21 Apr 2010 12:13:44 +0000</created>
                <updated>Tue, 6 Dec 2022 05:49:38 +0000</updated>
                            <resolved>Thu, 3 May 2018 19:31:43 +0000</resolved>
                                                                    <component>Admin</component>
                    <component>Sharding</component>
                                        <votes>13</votes>
                                    <watches>19</watches>
                                                                                                                <comments>
                            <comment id="1882175" author="kaloian.manassiev" created="Thu, 3 May 2018 19:31:43 +0000"  >&lt;p&gt;Closing as duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16264&quot; title=&quot;Allow unsharding a collection when all chunks are on the primary shard&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16264&quot;&gt;&lt;del&gt;SERVER-16264&lt;/del&gt;&lt;/a&gt;, which has more detail.&lt;/p&gt;</comment>
                            <comment id="1846350" author="michael_ahlijah@partech.com" created="Tue, 27 Mar 2018 13:30:36 +0000"  >&lt;p&gt;So when is this getting resolved? This issue has been open for 8 years so is there a plan to get it fixed?  &lt;/p&gt;</comment>
                            <comment id="15869" author="eliot" created="Fri, 16 Jul 2010 09:57:18 +0000"  >&lt;p&gt;moved to 1.7 early&lt;/p&gt;</comment>
                            <comment id="15868" author="alerner" created="Fri, 16 Jul 2010 09:51:09 +0000"  >&lt;p&gt;@eliot &lt;/p&gt;

&lt;p&gt;It is similar in that, as in dropshard, the balancer&apos;s decisions is influenced by the command. I&apos;d prefer, however, that we had a more generic mechanism of &quot;shard groups&quot;. Distribution of chunks of a collection anchored to a shard group would be done on shards within the group. Nothing prevents a group to be made of one shard.&lt;/p&gt;

&lt;p&gt;@ kyle, eliot&lt;/p&gt;

&lt;p&gt;Although I can imagine use cases for this, I wonder if (a) you&apos;d agree with the generalization above and (b) that we should wait for actual cases to appear so to determine the right behavior we want to have.&lt;/p&gt;

&lt;p&gt;If you think that&apos;s reasonable, I&apos;d push this to 1.7 and present a candidate design doc for it then.&lt;/p&gt;</comment>
                            <comment id="14985" author="eliot" created="Tue, 22 Jun 2010 20:04:41 +0000"  >&lt;p&gt;pretty similar to dropshard i think&lt;/p&gt;</comment>
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