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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-68237] Internal session pool may not reuse its session</title>
                <link>https://jira.mongodb.org/browse/SERVER-68237</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When the internal transaction API is used by a command in a session that is not a retryable write, it will use create a &quot;child&quot; session based on the user session for its transaction, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/bee62352c57da8f025cf5b425f31d34c07eb1cfd/src/mongo/db/internal_session_pool.h#L92&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;using the InternalSessionPool&lt;/a&gt; to reuse the same child session for that user session. The API will return its session to the pool in the destructor for one of its types (&lt;a href=&quot;https://github.com/mongodb/mongo/blob/bee62352c57da8f025cf5b425f31d34c07eb1cfd/src/mongo/db/transaction_api.cpp#L816-L817&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Transaction&lt;/a&gt;), which due to `shared_from_this` uses extending its lifetime may lead the destructor to run on an executor thread instead of the user command&apos;s thread. If this runs slow enough, a subsequent command for the same user session may fail to find the child session in the pool and create a new one, preventing session reuse.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2097427">SERVER-68237</key>
            <summary>Internal session pool may not reuse its session</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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>
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                                    <resolution id="3">Duplicate</resolution>
                                        <assignee username="sanika.phanse@mongodb.com">Sanika Phanse</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                            <label>sharding-nyc-subteam3</label>
                            <label>txn-api-improvements</label>
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                <created>Fri, 22 Jul 2022 19:41:48 +0000</created>
                <updated>Tue, 9 Aug 2022 14:22:23 +0000</updated>
                            <resolved>Tue, 9 Aug 2022 14:22:23 +0000</resolved>
                                                                                        <votes>0</votes>
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