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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-53299] AutoGetCollectionForReadLockFree is checking repl state multiple times without holding RSTL</title>
                <link>https://jira.mongodb.org/browse/SERVER-53299</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;tt&gt;SnapshotHelper::shouldReadAtLastApplied&lt;/tt&gt; is called explicitly from &lt;tt&gt;AutoGetCollectionForReadBase&lt;/tt&gt; and via &lt;tt&gt;SnapshotHelper::getNewReadSource&lt;/tt&gt;. It is checking &lt;tt&gt;ReplicationCoordinator::canAcceptWritesForDatabase&lt;/tt&gt; which can change as we&apos;re not holding the RSTL. A different answer would trigger the following fassert: &lt;a href=&quot;https://github.com/mongodb/mongo/blob/51e3e36ac48cac80c920e5e418013fdb0a6747f2/src/mongo/db/db_raii.cpp#L262-L265&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/51e3e36ac48cac80c920e5e418013fdb0a6747f2/src/mongo/db/db_raii.cpp#L262-L265&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1563775">SERVER-53299</key>
            <summary>AutoGetCollectionForReadLockFree is checking repl state multiple times without holding RSTL</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="henrik.edin@mongodb.com">Henrik Edin</assignee>
                                    <reporter username="henrik.edin@mongodb.com">Henrik Edin</reporter>
                        <labels>
                    </labels>
                <created>Wed, 9 Dec 2020 14:15:10 +0000</created>
                <updated>Sun, 29 Oct 2023 21:59:39 +0000</updated>
                            <resolved>Mon, 14 Dec 2020 15:54:40 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3527944" author="xgen-internal-githook" created="Mon, 14 Dec 2020 14:18:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Henrik Edin&apos;, &apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53299&quot; title=&quot;AutoGetCollectionForReadLockFree is checking repl state multiple times without holding RSTL&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53299&quot;&gt;&lt;del&gt;SERVER-53299&lt;/del&gt;&lt;/a&gt; Fix so AutoGetCollectionForReadLockFree only read replication state once when setting up read source.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0c4247a3401c21b59f7f6553b169aecbf824091f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0c4247a3401c21b59f7f6553b169aecbf824091f&lt;/a&gt;&lt;/p&gt;</comment>
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