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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-24909] Investigate releasing locks in the constructor of AutoGetCollectionOrViewForRead</title>
                <link>https://jira.mongodb.org/browse/SERVER-24909</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24766&quot; title=&quot;implement basic view functionality&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24766&quot;&gt;&lt;del&gt;SERVER-24766&lt;/del&gt;&lt;/a&gt;, AutoGetCollectionOrViewForRead has a method that relinquishes its locks. This is required to maintain correct statistics: simply destroying the AutoGetCollectionOrViewForRead would cause CurOp to log only the time resolving the view and not include the time actually performing the aggregation on the backing namespace.&lt;/p&gt;

&lt;p&gt;This unlock method is not in the spirit of RAII and we should investigate whether or not it would be possible to relinquish the database lock in the constructor of AutoGetCollectionOrViewForRead instead if the namespace is a view and not a collection.&lt;/p&gt;</description>
                <environment></environment>
        <key id="298706">SERVER-24909</key>
            <summary>Investigate releasing locks in the constructor of AutoGetCollectionOrViewForRead</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="kyle.suarez@mongodb.com">Kyle Suarez</reporter>
                        <labels>
                    </labels>
                <created>Tue, 5 Jul 2016 21:35:03 +0000</created>
                <updated>Tue, 6 Dec 2022 04:22:12 +0000</updated>
                            <resolved>Mon, 10 Jun 2019 20:44:03 +0000</resolved>
                                                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1315652" author="schwerin" created="Wed, 6 Jul 2016 17:29:22 +0000"  >&lt;p&gt;I disagree that an unlock() or dismiss() method is out of the spirit of an RAII object. See, for example, &lt;a href=&quot;http://en.cppreference.com/w/cpp/thread/unique_lock&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;std::unique_lock&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;However, if a RAII object with the behavior described is useful, please don&apos;t call it AutoGetCollectionOrViewForRead, since the AutoGet types typically hold their locks.&lt;/p&gt;</comment>
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