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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-59518] Change query yielding behavior to WT::commit_transaction instead of WT::rollback_transaction</title>
                <link>https://jira.mongodb.org/browse/SERVER-59518</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The following is how the current code path for yielding works:&lt;/p&gt;

&lt;p&gt;Query yield releases the storage engine resources &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a241a584d81ade104f7a2e37ca7edfdc974a47cc/src/mongo/db/query/plan_yield_policy.cpp#L171-L173&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. Locked reads will implicitly open a new storage transaction on the next storage access; lock-free reads will explicitly open a new storage transaction in the restore logic &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a241a584d81ade104f7a2e37ca7edfdc974a47cc/src/mongo/db/query/plan_yield_policy.cpp#L192&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;br/&gt;
 abandonSnapshot() then closes the storage transaction &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp#L338&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;br/&gt;
_txnClose then calls rollback_transaction &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a241a584d81ade104f7a2e37ca7edfdc974a47cc/src/mongo/db/storage/wiredtiger/wiredtiger_recovery_unit.cpp#L458&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;One quick and dirty solution to pivot to calling WT::commit_transaction instead of WT::rollback_transaction would be a bool decoration on the opCtx set during the query yield logic. That should get things up and running, to find out if there&apos;s a performance issue. Then a better solution could be explored. But maybe there&apos;ll be an obvious good way to do it.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1858547">SERVER-59518</key>
            <summary>Change query yielding behavior to WT::commit_transaction instead of WT::rollback_transaction</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Mon, 23 Aug 2021 23:39:27 +0000</created>
                <updated>Tue, 6 Dec 2022 00:59:46 +0000</updated>
                            <resolved>Mon, 23 Aug 2021 23:42:05 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
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