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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-38824] Investigate dropped collections coming back into existence</title>
                <link>https://jira.mongodb.org/browse/SERVER-38824</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There are cases where a collection dropped from the &lt;tt&gt;_mdb_catalog&lt;/tt&gt; reappear. The hypothesis is that the following sequence performed by a secondary:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;Create collection&lt;/li&gt;
	&lt;li&gt;Complete a background index on the collection&lt;/li&gt;
	&lt;li&gt;Drop the collection&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;can result in the collection reappearing in state 2 when those individual updates are pushed to WT&apos;s lookaside table. The common manifestation is that a restart of the mongod process will fail with fatal assertion code 34433 because the &lt;tt&gt;_mdb_catalog&lt;/tt&gt; refers to a table that was dropped from WT.&lt;/p&gt;</description>
                <environment></environment>
        <key id="664993">SERVER-38824</key>
            <summary>Investigate dropped collections coming back into existence</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-storage-engines">Backlog - Storage Engines Team</assignee>
                                    <reporter username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</reporter>
                        <labels>
                            <label>storage-engines</label>
                    </labels>
                <created>Thu, 3 Jan 2019 18:49:10 +0000</created>
                <updated>Tue, 6 Dec 2022 03:09:19 +0000</updated>
                                            <version>4.0.5</version>
                                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>14</watches>
                                                                                                                <comments>
                            <comment id="2202892" author="jocelyn.del-prado" created="Fri, 5 Apr 2019 03:25:22 +0000"  >&lt;p&gt;Switching this to the backlog fix version and raised the priority of the 2 linked tickets.&lt;/p&gt;</comment>
                            <comment id="2116828" author="daniel.gottlieb@10gen.com" created="Wed, 16 Jan 2019 14:20:24 +0000"  >&lt;p&gt;Yep&lt;/p&gt;</comment>
                            <comment id="2115075" author="alexander.gorrod" created="Tue, 15 Jan 2019 00:40:50 +0000"  >&lt;p&gt;The two related WiredTiger tickets are being picked up at the moment - once the WT tickets are resolved, we will revisit this, and hopefully have a path forward. Does that make sense &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=daniel.gottlieb&quot; class=&quot;user-hover&quot; rel=&quot;daniel.gottlieb&quot;&gt;daniel.gottlieb&lt;/a&gt;?&lt;/p&gt;</comment>
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