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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-72503] Don&apos;t allow split sessions and their top-level sessions to be expired/reaped</title>
                <link>https://jira.mongodb.org/browse/SERVER-72503</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The sessions in the &lt;b&gt;InternalSessionPool&lt;/b&gt; currently have a fixed timeout of 15 minutes.&#160; Since they hold prepared transactions, these split sessions cannot be allowed to time out.&lt;/p&gt;

&lt;p&gt;To avoid expiration of the top-level session, &lt;b&gt;canBeReaped()&lt;/b&gt; on the TransactionParticipant will be modified to return false whenever split sessions exist (this can be done by checking the SplitPrepareSessionManager or adding a new SplitPrepareMode state in TransactionParticipant and checking for that).&lt;/p&gt;</description>
                <environment></environment>
        <key id="2223447">SERVER-72503</key>
            <summary>Don&apos;t allow split sessions and their top-level sessions to be expired/reaped</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="13202">Works as Designed</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="wenbin.zhu@mongodb.com">Wenbin Zhu</reporter>
                        <labels>
                    </labels>
                <created>Wed, 4 Jan 2023 06:54:18 +0000</created>
                <updated>Fri, 27 Oct 2023 13:51:46 +0000</updated>
                            <resolved>Fri, 17 Mar 2023 16:22:22 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="5107417" author="JIRAUSER1258790" created="Wed, 11 Jan 2023 22:04:43 +0000"  >&lt;p&gt;After looking into the InternalSessionPool code, I don&apos;t think we need to do anything for the split sessions because the InternalSessionPool only reaps sessions that have been released to the pool. For the top-level sessions, we probably don&apos;t need to worry about them either, because after apply split transactions as secondary, we should update the top-level transactionParticipant&apos;s state. &lt;b&gt;canBeReaped()&lt;/b&gt; won&apos;t return true if the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d65e291d0bbf97b60e97203b446c3d309dfbb606/src/mongo/db/transaction/transaction_participant.h#L318&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;transaction is open&lt;/a&gt; (i.e. transactionParticipant&apos;s state is &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d65e291d0bbf97b60e97203b446c3d309dfbb606/src/mongo/db/transaction/transaction_participant.h#L117&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;either kInProgress or kPrepared&lt;/a&gt;). Therefore we&apos;re going to deprioritize this ticket at this moment and revisit it after finishing the core logics.&lt;/p&gt;</comment>
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