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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-41606] Refactor CollectionRangeDeleter so that it&apos;s responsibilities are separate from metadata manager</title>
                <link>https://jira.mongodb.org/browse/SERVER-41606</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, the range deleter is conceptually responsible for the following:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Deleting ranges of orphaned documents&lt;/li&gt;
	&lt;li&gt;Allowing clients to wait on a specific range to be deleted&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Another class, the metadata manager, is responsible for the following:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Tracking which chunks may still be in use by ongoing queries&lt;/li&gt;
	&lt;li&gt;Scheduling orphaned ranges for deletion by the range deleter once they are no longer referenced by any ongoing query&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;However, the current implementation of the range deleter is tightly coupled with the implementation of the metadata manager and the code structure does not clearly delineate these responsibilities. &lt;/p&gt;

&lt;p&gt;This ticket is to create a new interface and implementation of the CollectionRangeDeleter such that it is a single-threaded service which pulls ranges to delete from a task queue. It will reuse existing code from the current range deleter to the extent possible. There will be a separate ticket to plug the new version of the range deleter into the metadata manager and remove the old one.&lt;/p&gt;</description>
                <environment></environment>
        <key id="795140">SERVER-41606</key>
            <summary>Refactor CollectionRangeDeleter so that it&apos;s responsibilities are separate from metadata manager</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="alex.taskov@mongodb.com">Alexander Taskov</assignee>
                                    <reporter username="matthew.saltz@mongodb.com">Matthew Saltz</reporter>
                        <labels>
                            <label>todo_in_code</label>
                    </labels>
                <created>Mon, 10 Jun 2019 17:56:49 +0000</created>
                <updated>Mon, 23 Sep 2019 16:55:27 +0000</updated>
                            <resolved>Fri, 14 Jun 2019 15:39:48 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2285268" author="matthew.saltz" created="Fri, 14 Jun 2019 15:39:48 +0000"  >&lt;p&gt;Changed the design so that this is no longer necessary&lt;/p&gt;</comment>
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