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    <description>This file is an XML representation of an issue</description>
    <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>[DOCS-12519] Docs for SERVER-38722: CollectionCloner should handle QueryPlanKilled on collection drop</title>
                <link>https://jira.mongodb.org/browse/DOCS-12519</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;blockquote&gt;
&lt;h3&gt;&lt;a name=&quot;Description%3A&quot;&gt;&lt;/a&gt;Description: &lt;/h3&gt;

&lt;p&gt;I&apos;m not sure if we really should document this or not, but there are implications for upgrade. It&apos;s pretty deep in the weeds, but see my latest public comment. Let me know if you have any questions.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;EngineeringTicketDescription%3A&quot;&gt;&lt;/a&gt;Engineering Ticket Description:&lt;/h3&gt;

&lt;p&gt;The &lt;tt&gt;CollectionCloner&lt;/tt&gt;, used in the first phase of initial sync, has code to interpret error codes from the &lt;tt&gt;getMore&lt;/tt&gt; command as indicative of a collection drop:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/bf58b1ab2abfb2a3ab7a86c154f9f5954ed6f98c/src/mongo/db/repl/collection_cloner.cpp#L576-L582&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/bf58b1ab2abfb2a3ab7a86c154f9f5954ed6f98c/src/mongo/db/repl/collection_cloner.cpp#L576-L582&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;In 4.0 and older branches, it handles &lt;tt&gt;OperationFailed&lt;/tt&gt; and &lt;tt&gt;CursorNotFound&lt;/tt&gt;. However, collection drops can result in a &lt;tt&gt;getMore&lt;/tt&gt; returning &lt;tt&gt;QueryPlanKilled&lt;/tt&gt;. This error code should be handled as well. This was fixed in 4.1.7 by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37451&quot; title=&quot;Move all cursor ownership to the global cursor manager&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37451&quot;&gt;&lt;del&gt;SERVER-37451&lt;/del&gt;&lt;/a&gt;, but it still needs to be fixed in older branches. As part of moving &lt;tt&gt;ClientCursor&lt;/tt&gt; ownership to the global cursor manager, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37451&quot; title=&quot;Move all cursor ownership to the global cursor manager&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37451&quot;&gt;&lt;del&gt;SERVER-37451&lt;/del&gt;&lt;/a&gt; changed the server&apos;s behavior such that collection drops result in &lt;tt&gt;QueryPlanKilled&lt;/tt&gt; rather than &lt;tt&gt;CursorNotFound&lt;/tt&gt;. This necessitated an immediate fix in master in order to ensure that initial sync remains resilient to collection drops. This ticket tracks the remaining backport work.&lt;/p&gt;&lt;/blockquote&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="706993">DOCS-12519</key>
            <summary>Docs for SERVER-38722: CollectionCloner should handle QueryPlanKilled on collection drop</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="kay.kim@mongodb.com">Kay Kim</reporter>
                        <labels>
                    </labels>
                <created>Fri, 1 Mar 2019 02:01:18 +0000</created>
                <updated>Mon, 13 Nov 2023 18:24:44 +0000</updated>
                                                            <fixVersion>4.0.7</fixVersion>
                    <fixVersion>3.6.12</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4940495" author="edu.bot" created="Mon, 31 Oct 2022 16:06:16 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
                            <comment id="2166956" author="kay.kim@10gen.com" created="Fri, 1 Mar 2019 02:04:37 +0000"  >&lt;p&gt;PM-1276 also has minimum 4.0.7 before 4.2 upgrade req&lt;/p&gt;</comment>
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