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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-56077] Require CSR lock when exiting the CSR critical section</title>
                <link>https://jira.mongodb.org/browse/SERVER-56077</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a673a03c6c8ab4629ea3c1d7cab4814d559a2aea/src/mongo/db/s/collection_sharding_runtime.cpp#L160-L166&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;methods for entering the critical section&lt;/a&gt; are expecting the CSR lock to be passed as argument, the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a673a03c6c8ab4629ea3c1d7cab4814d559a2aea/src/mongo/db/s/collection_sharding_runtime.cpp#L170&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;release method is internally acquiring it&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Goals of this ticket:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Make the interface uniform: all methods must expect the caller to acquire and pass the CSR lock.&lt;/li&gt;
	&lt;li&gt;Get rid of &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a673a03c6c8ab4629ea3c1d7cab4814d559a2aea/src/mongo/db/s/collection_sharding_runtime.cpp#L169&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this invariant&lt;/a&gt; checking that the collection lock is held on exit: when releasing the critical section upon stepdown, it is not possible to acquire any db/collection lock.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1679428">SERVER-56077</key>
            <summary>Require CSR lock when exiting the CSR critical section</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>PM-1965-Milestone-1</label>
                    </labels>
                <created>Tue, 13 Apr 2021 18:28:05 +0000</created>
                <updated>Sun, 29 Oct 2023 21:54:57 +0000</updated>
                            <resolved>Wed, 14 Apr 2021 10:18:46 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3717220" author="xgen-internal-githook" created="Wed, 14 Apr 2021 10:13:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56077&quot; title=&quot;Require CSR lock when exiting the CSR critical section&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56077&quot;&gt;&lt;del&gt;SERVER-56077&lt;/del&gt;&lt;/a&gt; Require CSR lock when exiting the CSR critical section&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d3d6215adebe862ed2b7ed72ed36ef41a8380f79&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d3d6215adebe862ed2b7ed72ed36ef41a8380f79&lt;/a&gt;&lt;/p&gt;</comment>
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