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    <title>MongoDB Jira</title>
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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-41871] Provide a mechanism to remove a shard and also abandon its chunks</title>
                <link>https://jira.mongodb.org/browse/SERVER-41871</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently there is no way to remove a shard from a cluster without migrating the chunks on that shard away to other shards.  This makes it impossible to remove a shard which is entirely lost (because we can&apos;t move the chunks away because we don&apos;t have them).  We also can&apos;t introduce a new repl set on top of that shard, because it&apos;ll have the wrong term.&lt;/p&gt;

&lt;p&gt;We should provide a mechanism to update the routing table such that:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;A given shard is removed&lt;/li&gt;
	&lt;li&gt;Chunk info for chunks on that shard is removed&lt;/li&gt;
	&lt;li&gt;key space for sharded collections on that shard are re-allocated to other shards (so as to avoid leaving gaps in the routing table)&lt;/li&gt;
	&lt;li&gt;the shard in question is completely unavailable&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;We will add a new option to the removeShard command that puts a shard into forced draining mode in order to provide the above.&lt;/p&gt;</description>
                <environment></environment>
        <key id="810843">SERVER-41871</key>
            <summary>Provide a mechanism to remove a shard and also abandon its chunks</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="mira.carey@mongodb.com">Mira Carey</reporter>
                        <labels>
                    </labels>
                <created>Fri, 21 Jun 2019 20:51:52 +0000</created>
                <updated>Tue, 6 Dec 2022 02:56:17 +0000</updated>
                            <resolved>Fri, 3 Jan 2020 19:29:40 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="2703020" author="sheeri.cabral" created="Fri, 3 Jan 2020 19:29:40 +0000"  >&lt;p&gt;We have abandoned this project.&lt;/p&gt;</comment>
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