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    <language>en-us</language>    <build-info>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-26775] ClientCursorMonitor should not crash on view namespaces</title>
                <link>https://jira.mongodb.org/browse/SERVER-26775</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The ClientCursorMonitor periodically calls &lt;tt&gt;CursorManager::timeoutCursorsGlobal()&lt;/tt&gt;, which will go over all open cursors and attempt to time them out. This code doesn&apos;t correctly handle views, and encounters an exception because it tries to get collection locks for a view&apos;s namespace.&lt;/p&gt;</description>
                <environment></environment>
        <key id="326803">SERVER-26775</key>
            <summary>ClientCursorMonitor should not crash on view namespaces</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="9">Done</resolution>
                                        <assignee username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="charlie.swanson@mongodb.com">Charlie Swanson</reporter>
                        <labels>
                            <label>read-only-views</label>
                    </labels>
                <created>Tue, 25 Oct 2016 21:36:24 +0000</created>
                <updated>Sat, 19 Nov 2016 00:06:04 +0000</updated>
                            <resolved>Tue, 15 Nov 2016 19:10:24 +0000</resolved>
                                                    <fixVersion>3.4.0-rc4</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1434833" author="xgen-internal-githook" created="Tue, 15 Nov 2016 19:09:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dgottlieb&apos;, u&apos;name&apos;: u&apos;Daniel Gottlieb&apos;, u&apos;email&apos;: u&apos;daniel.gottlieb@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-26775&quot; title=&quot;ClientCursorMonitor should not crash on view namespaces&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-26775&quot;&gt;&lt;del&gt;SERVER-26775&lt;/del&gt;&lt;/a&gt;: Cursors may be on a view namespace.&lt;/p&gt;

&lt;p&gt;When a ClientCursorMonitor is timing out a cursor, its namespace may&lt;br/&gt;
be on a view. One case where this can happen is when the cursor was&lt;br/&gt;
on a collection, but when the ClientCursorMonitor gets to timing it&lt;br/&gt;
out, that collection was dropped and its namespace was recreated as&lt;br/&gt;
a view.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/549c3f4315fd95431a662e7a8eff880f00b1458d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/549c3f4315fd95431a662e7a8eff880f00b1458d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1417550" author="charlie.swanson" created="Tue, 25 Oct 2016 22:09:27 +0000"  >&lt;p&gt;Actually, after some more investigation, it looks like my initial diagnosis was incorrect. Creating a view does not create a CursorManager, so we must be in some sort of weird state where there is a CursorManager registered on a namespace, but that namespace is actually a view. I&apos;ll do some more investigation tomorrow.&lt;/p&gt;</comment>
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