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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>[SERVER-69461] The behaviour of lock acquisitions differs depending on whether OpContext or Locker is used</title>
                <link>https://jira.mongodb.org/browse/SERVER-69461</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There are multiple lock manager RAII classes which take both OperationContext and Locker (or both) and it looks like there exists at least one case where the behaviour of locking differs based on whether locker is passed directly or not.&lt;/p&gt;

&lt;p&gt;For example, if we remove the Locker-only constructor of &lt;tt&gt;ResourceLock&lt;/tt&gt;, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/993d08489112ac4527764528f378bbad89af12f7/src/mongo/db/concurrency/lock_state.cpp#L855&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this invariant&lt;/a&gt; starts getting hit reliably. The condition to check for the invariant doesn&apos;t get reached if opCtx is nullptr (which is what happens if we use the locker-only constructor).&lt;/p&gt;

&lt;p&gt;Having such differentiation is dangerous and error-prone and we should get rid of it.&lt;/p&gt;

&lt;p&gt;Architecturally, the OpContext and the Locker are complementary with each other. The OpContext is necessary for the &quot;OS-like&quot; utilities such as interruption, deadline, the operation&apos;s settings, transactional state, etc and the Locker is just the container for the currently-acquired locks.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2129546">SERVER-69461</key>
            <summary>The behaviour of lock acquisitions differs depending on whether OpContext or Locker is used</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="yujin.kang@mongodb.com">Yujin Kang Park</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Tue, 6 Sep 2022 07:04:41 +0000</created>
                <updated>Sun, 29 Oct 2023 21:33:34 +0000</updated>
                            <resolved>Wed, 27 Sep 2023 09:25:23 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                                    <component>Concurrency</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="5733797" author="xgen-internal-githook" created="Wed, 27 Sep 2023 09:24:29 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Yu Jin Kang Park&apos;, &apos;email&apos;: &apos;yujin.kang@mongodb.com&apos;, &apos;username&apos;: &apos;ykangpark&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69461&quot; title=&quot;The behaviour of lock acquisitions differs depending on whether OpContext or Locker is used&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69461&quot;&gt;&lt;del&gt;SERVER-69461&lt;/del&gt;&lt;/a&gt; Remove ResourceLock contructor taking Locker*&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/959ccc81b8ee064976d7949ee430987b1a8eedd5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/959ccc81b8ee064976d7949ee430987b1a8eedd5&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5572389" author="xgen-internal-githook" created="Mon, 17 Jul 2023 21:58:26 +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: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69461&quot; title=&quot;The behaviour of lock acquisitions differs depending on whether OpContext or Locker is used&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69461&quot;&gt;&lt;del&gt;SERVER-69461&lt;/del&gt;&lt;/a&gt; Remove ResourceLock contructor taking Locker*&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit fc0cd619e16d8cbdb0a6978cd0f97dcc3f1514ed.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/03181c3abac6e751ec4c81c7497f20bf433738fe&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/03181c3abac6e751ec4c81c7497f20bf433738fe&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5557835" author="xgen-internal-githook" created="Tue, 11 Jul 2023 16:15:50 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Yu Jin Kang Park&apos;, &apos;email&apos;: &apos;yujin.kang@mongodb.com&apos;, &apos;username&apos;: &apos;ykangpark&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69461&quot; title=&quot;The behaviour of lock acquisitions differs depending on whether OpContext or Locker is used&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69461&quot;&gt;&lt;del&gt;SERVER-69461&lt;/del&gt;&lt;/a&gt; Remove ResourceLock contructor taking Locker*&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fc0cd619e16d8cbdb0a6978cd0f97dcc3f1514ed&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fc0cd619e16d8cbdb0a6978cd0f97dcc3f1514ed&lt;/a&gt;&lt;/p&gt;</comment>
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                                        <issuelink>
            <issuekey id="2377147">SERVER-78438</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2397744">SERVER-79176</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2398026">SERVER-79186</issuekey>
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            <issuekey id="2129550">SERVER-69462</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2132031">SERVER-69523</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="2137650">SERVER-69727</issuekey>
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