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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-28309] Delete RangePreserver</title>
                <link>https://jira.mongodb.org/browse/SERVER-28309</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;tt&gt;RangePreserver&lt;/tt&gt; is an RAII class which opens a special &lt;tt&gt;ClientCursor&lt;/tt&gt; on construction, and deletes it on destruction. The purpose of this &lt;tt&gt;ClientCursor&lt;/tt&gt; is to allocate a special cursor id whose presence will prevent the deletion of chunk ranges which might still be needed by an active query.&lt;/p&gt;

&lt;p&gt;The planned work in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27760&quot; title=&quot;Replace RangeDeleter with CollectionRangeDeleter&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27760&quot;&gt;&lt;del&gt;SERVER-27760&lt;/del&gt;&lt;/a&gt; will remove the use of cursor ids for determining which chunk ranges can be cleaned up. Therefore, once &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27760&quot; title=&quot;Replace RangeDeleter with CollectionRangeDeleter&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27760&quot;&gt;&lt;del&gt;SERVER-27760&lt;/del&gt;&lt;/a&gt; is resolved, uses of the RangePreserver can be removed and the class can be deleted.&lt;/p&gt;</description>
                <environment></environment>
        <key id="364717">SERVER-28309</key>
            <summary>Delete RangePreserver</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="9">Done</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                            <label>todo_in_code</label>
                    </labels>
                <created>Tue, 14 Mar 2017 18:11:46 +0000</created>
                <updated>Wed, 6 Dec 2017 21:09:46 +0000</updated>
                            <resolved>Fri, 21 Apr 2017 22:22:21 +0000</resolved>
                                                    <fixVersion>3.5.7</fixVersion>
                                    <component>Querying</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1555387" author="xgen-internal-githook" created="Fri, 21 Apr 2017 22:21:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28309&quot; title=&quot;Delete RangePreserver&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28309&quot;&gt;&lt;del&gt;SERVER-28309&lt;/del&gt;&lt;/a&gt; remove RangePreserver class&lt;/p&gt;

&lt;p&gt;RangePreserver was an old way to ensure that necessary chunk&lt;br/&gt;
ranges are not deleted during query execution. This is now&lt;br/&gt;
handled by ScopedCollectionMetadata.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d36bda7504883775be245d829ce7ada221d182ec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d36bda7504883775be245d829ce7ada221d182ec&lt;/a&gt;&lt;/p&gt;</comment>
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