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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-73928] Defer lifetime drop of DeferredDropRecordStore</title>
                <link>https://jira.mongodb.org/browse/SERVER-73928</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/WT-10576&quot; title=&quot;Return EBUSY on forced drop if there is an active transaction&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-10576&quot;&gt;WT-10576&lt;/a&gt; we found that the way we currently drop temporary collections can lead to invalid memory access. To hit this failure the following must be true:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Operation A has a WT transaction open and has modified collection C&lt;/li&gt;
	&lt;li&gt;Collection C is dropped&lt;/li&gt;
	&lt;li&gt;Operation A performs a commit/rollback&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;This is mostly an issue with multi-document transactions but it could be a problem in general. We should either defer the drop until after the commmit/rollback takes place so we don&apos;t access invalid memory.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2262683">SERVER-73928</key>
            <summary>Defer lifetime drop of DeferredDropRecordStore</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>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</assignee>
                                    <reporter username="jordi.olivares-provencio@mongodb.com">Jordi Olivares Provencio</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 Feb 2023 10:37:38 +0000</created>
                <updated>Thu, 16 Feb 2023 10:53:48 +0000</updated>
                            <resolved>Tue, 14 Feb 2023 11:01:33 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="5196378" author="JIRAUSER1264163" created="Tue, 14 Feb 2023 11:01:33 +0000"  >&lt;p&gt;Turns out the server already has support for handling EBUSY errors when dropping a collection if WT returns EBUSY when dropping a table. If that&apos;s the case, the ident reaper will retry on its next iteration. We&apos;ve discussed with WT to fix the behaviour of force drops in &lt;a href=&quot;https://jira.mongodb.org/browse/WT-10576&quot; title=&quot;Return EBUSY on forced drop if there is an active transaction&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-10576&quot;&gt;WT-10576&lt;/a&gt; in order to return EBUSY rather than no error if there&apos;s a transaction open on the collection.&lt;/p&gt;

&lt;p&gt;Closing ticket as Won&apos;t Fix since there&apos;s nothing to do on the server side.&lt;/p&gt;</comment>
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            <issuekey id="2266249">SERVER-74085</issuekey>
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