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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-8307] Use db-level lock when MapReduce input and output use a single DB</title>
                <link>https://jira.mongodb.org/browse/SERVER-8307</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In State::postProcessCollectionNonAtomic() and State::postProcessCollection(), only take a global write lock when necessary (e.g. if the input and output databases differ).&lt;/p&gt;</description>
                <environment></environment>
        <key id="63072">SERVER-8307</key>
            <summary>Use db-level lock when MapReduce input and output use a single DB</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
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                        <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="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="benjamin.becker">Ben Becker</reporter>
                        <labels>
                            <label>mapreduce</label>
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                <created>Wed, 23 Jan 2013 20:59:17 +0000</created>
                <updated>Tue, 6 Dec 2022 05:25:33 +0000</updated>
                            <resolved>Fri, 4 Feb 2022 15:09:35 +0000</resolved>
                                                                    <component>Concurrency</component>
                    <component>MapReduce</component>
                                        <votes>1</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4335980" author="esha.bhargava" created="Fri, 4 Feb 2022 15:08:06 +0000"  >&lt;p&gt;Closing these tickets as part of the deprecation of mapReduce.&lt;/p&gt;</comment>
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