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    <title>MongoDB Jira</title>
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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-45955] findAndModify should not take exclusive locks</title>
                <link>https://jira.mongodb.org/browse/SERVER-45955</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;findAndModify takes exclusive database locks for &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd97e315bd8600e5c91d6f5820393478a6b97532/src/mongo/db/commands/find_and_modify.cpp#L460&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;upserts&lt;/a&gt;. It should not need to do this as of the finer-grained locks work, nor should it need to take an exclusive collection lock as of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43859&quot; title=&quot;Use only MODE_IX locks for creating a new collection, and new db if needed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43859&quot;&gt;&lt;del&gt;SERVER-43859&lt;/del&gt;&lt;/a&gt; to create the collection.&lt;/p&gt;

&lt;p&gt;Any exclusive db/collection lock acquisitions in findAndModify should be changed to intent exclusive acquisitions.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1129157">SERVER-45955</key>
            <summary>findAndModify should not take exclusive locks</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="13201">Fixed</resolution>
                                        <assignee username="gregory.noma@mongodb.com">Gregory Noma</assignee>
                                    <reporter username="maria.vankeulen@mongodb.com">Maria van Keulen</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Feb 2020 19:20:49 +0000</created>
                <updated>Sun, 29 Oct 2023 22:12:34 +0000</updated>
                            <resolved>Wed, 1 Apr 2020 20:31:41 +0000</resolved>
                                                    <fixVersion>4.4.0-rc0</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                    <component>Concurrency</component>
                    <component>Write Ops</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="3023750" author="xgen-internal-githook" created="Thu, 2 Apr 2020 18:16:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45955&quot; title=&quot;findAndModify should not take exclusive locks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45955&quot;&gt;&lt;del&gt;SERVER-45955&lt;/del&gt;&lt;/a&gt; Make findAndModify not take database MODE_X lock&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 3c78c7dd07811172f37d39f4924b706d871dfeab)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/df7ad9a3574142866fc1f604d2b47b9ca91ae437&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/df7ad9a3574142866fc1f604d2b47b9ca91ae437&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3021883" author="xgen-internal-githook" created="Wed, 1 Apr 2020 20:28:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-45955&quot; title=&quot;findAndModify should not take exclusive locks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-45955&quot;&gt;&lt;del&gt;SERVER-45955&lt;/del&gt;&lt;/a&gt; Make findAndModify not take database MODE_X lock&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3c78c7dd07811172f37d39f4924b706d871dfeab&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3c78c7dd07811172f37d39f4924b706d871dfeab&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1129163">SERVER-45956</issuekey>
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            <issuekey id="1322993">SERVER-47665</issuekey>
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            <issuekey id="1291176">SERVER-47123</issuekey>
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            <issuelink>
            <issuekey id="1226567">SERVER-46615</issuekey>
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