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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
    </build-info>


<item>
            <title>[SERVER-80423] Make the preImage document always available to OplogDeleteEntryArgs</title>
                <link>https://jira.mongodb.org/browse/SERVER-80423</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;collection&amp;#95;internal::deleteDocument() always receives an owned BSONObj when the storage engine supports document-level concurrency. This is because either (a) &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c13dd99398cd5d0c0ed31001e772f73ccc0153c1/src/mongo/db/exec/delete_stage.cpp#L230-L235&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;DeleteStage&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c13dd99398cd5d0c0ed31001e772f73ccc0153c1/src/mongo/db/exec/batched_delete_stage.cpp#L501-L506&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;BatchedDeleteStage&lt;/a&gt; will have called WorkingSetMember::makeObjOwnedIfNeeded() or (b) &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c13dd99398cd5d0c0ed31001e772f73ccc0153c1/src/mongo/db/catalog/collection_write_path.cpp#L751&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;collection&amp;#95;internal::deleteDocument(const RecordId&amp;amp; loc) will have called CollectionPtr::docFor()&lt;/a&gt; which copies the contents out of the storage engine. This means that, since the removal of the MMAPv1 storage engine in MongoDB 4.2, OplogDeleteEntryArgs::deletedDoc can be non-nullptr BSONObj.&lt;/p&gt;

&lt;p&gt;Furthermore, OpObserver::aboutToDelete() no longer serves a meaningful purpose because the memory for the copied &lt;tt&gt;deletedDoc&lt;/tt&gt; is guaranteed to outlive the contents of the storage engine. We can therefore simplify the pattern of using decorations to propagate state between OpObserver::aboutToDelete() and OpObserver::onDelete() by instead using local variables within OpObserver::onDelete().&lt;/p&gt;</description>
                <environment></environment>
        <key id="2426697">SERVER-80423</key>
            <summary>Make the preImage document always available to OplogDeleteEntryArgs</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                    </labels>
                <created>Fri, 25 Aug 2023 13:52:32 +0000</created>
                <updated>Sun, 29 Oct 2023 21:17:05 +0000</updated>
                            <resolved>Fri, 15 Sep 2023 18:05:56 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="5708064" author="xgen-internal-githook" created="Fri, 15 Sep 2023 18:00:03 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80423&quot; title=&quot;Make the preImage document always available to OplogDeleteEntryArgs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80423&quot;&gt;&lt;del&gt;SERVER-80423&lt;/del&gt;&lt;/a&gt; replace pre-image OplogDeleteEntryArgs::deletedDoc field with OpObserver::onDelete() parameter&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/12803ad6b78ee7e2d8503e848883ac62b746c95a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/12803ad6b78ee7e2d8503e848883ac62b746c95a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5706798" author="xgen-internal-githook" created="Fri, 15 Sep 2023 12:45:58 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80423&quot; title=&quot;Make the preImage document always available to OplogDeleteEntryArgs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80423&quot;&gt;&lt;del&gt;SERVER-80423&lt;/del&gt;&lt;/a&gt; merge ClusterServerParameterOpObserver::aboutToDelete() into onDelete()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6d643f352e61aa0b5245bd32c49d1c105fa243ad&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6d643f352e61aa0b5245bd32c49d1c105fa243ad&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5706252" author="xgen-internal-githook" created="Fri, 15 Sep 2023 04:40:45 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80423&quot; title=&quot;Make the preImage document always available to OplogDeleteEntryArgs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80423&quot;&gt;&lt;del&gt;SERVER-80423&lt;/del&gt;&lt;/a&gt; deleteDocument() always provides pre-image to OpObserver::onDelete()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/61eb1e49f4d0726dca06969a7f633e0d6ca0fa61&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/61eb1e49f4d0726dca06969a7f633e0d6ca0fa61&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5706216" author="xgen-internal-githook" created="Fri, 15 Sep 2023 03:45:15 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80423&quot; title=&quot;Make the preImage document always available to OplogDeleteEntryArgs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80423&quot;&gt;&lt;del&gt;SERVER-80423&lt;/del&gt;&lt;/a&gt; cappedDeleteUntilBelowConfiguredMaximum() always provides pre-image to OpObserver::onDelete()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/87e032e0e3a44389283335f1b327fdbff4816afa&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/87e032e0e3a44389283335f1b327fdbff4816afa&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="2438976">SERVER-80956</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2432577">SERVER-80680</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2442546">SERVER-81080</issuekey>
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                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="168240">SERVER-16049</issuekey>
        </issuelink>
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            <issuekey id="182012">SERVER-17148</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1895309">SERVER-60602</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2124760">SERVER-69237</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2350765">SERVER-77484</issuekey>
        </issuelink>
                            </inwardlinks>
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