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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-36662] Delete UpdateNotifier</title>
                <link>https://jira.mongodb.org/browse/SERVER-36662</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4028ee62650cde8be1409ffe54bd4d40328c241c/src/mongo/db/storage/record_store.h#L75-L83&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;UpdateNotifier&lt;/a&gt; is a callback mechanism that is used as part of the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4028ee62650cde8be1409ffe54bd4d40328c241c/src/mongo/db/storage/record_store.h#L421-L430&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;RecordStore::updateRecord()&lt;/a&gt; storage engine API method. It was necessary in previous versions of MongoDB to allow storage engines that do not support document-level concurrency to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/catalog/collection_impl.cpp#L685-L686&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;notify the query execution layer that a document associated with a RecordId is being mutated&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The work in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16857&quot; title=&quot;Remove PlanStage::invalidate()&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16857&quot;&gt;&lt;del&gt;SERVER-16857&lt;/del&gt;&lt;/a&gt; is removing the delivery of update/delete notifications to the query execution system, which means that the &lt;tt&gt;UpdateNotifier&lt;/tt&gt; is no longer necessary.&lt;/p&gt;</description>
                <environment></environment>
        <key id="588494">SERVER-36662</key>
            <summary>Delete UpdateNotifier</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="13201">Fixed</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Tue, 14 Aug 2018 20:17:04 +0000</created>
                <updated>Sun, 29 Oct 2023 22:28:57 +0000</updated>
                            <resolved>Wed, 29 Aug 2018 13:44:34 +0000</resolved>
                                                    <fixVersion>4.1.3</fixVersion>
                                    <component>Querying</component>
                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="1988704" author="xgen-internal-githook" created="Wed, 29 Aug 2018 13:42:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;David Storch&apos;, &apos;email&apos;: &apos;david.storch@10gen.com&apos;, &apos;username&apos;: &apos;dstorch&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36662&quot; title=&quot;Delete UpdateNotifier&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36662&quot;&gt;&lt;del&gt;SERVER-36662&lt;/del&gt;&lt;/a&gt; Delete UpdateNotifier.&lt;/p&gt;

&lt;p&gt;The UpdateNotifier was a callback mechanism for issuing&lt;br/&gt;
MMAPv1 diskloc invalidations. It does nothing now that&lt;br/&gt;
MMAPv1 invalidations are themselves deleted.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/78901fd754958d57b914e7209e702eec53543d81&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/78901fd754958d57b914e7209e702eec53543d81&lt;/a&gt;&lt;/p&gt;</comment>
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