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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-76481] RSLocalClient should not manually implement readConcern</title>
                <link>https://jira.mongodb.org/browse/SERVER-76481</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49af32533833ff66b0a65dc93394ac09ddeab807/src/mongo/db/rs_local_client.cpp#L105-L143&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;RSLocalClient::queryOnce&lt;/a&gt; manually implements majority read concern for its callers. It also does some complex work of stashing the previous ReadSource so that it doesn&apos;t affect the caller&apos;s RecoveryUnit state.&lt;/p&gt;

&lt;p&gt;We should really be doing this work inside &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49af32533833ff66b0a65dc93394ac09ddeab807/src/mongo/db/read_concern_mongod.cpp#L286&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;waitForReadConcern()&lt;/a&gt; and have the caller pass a &quot;readConcern&quot; to the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49af32533833ff66b0a65dc93394ac09ddeab807/src/mongo/client/dbclient_cursor.h#L67&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;FindCommandRequest&lt;/a&gt; in the DBDirectClient. This should work correctly.&lt;/p&gt;

&lt;p&gt;Ideally inside waitForReadConcern(), if we&apos;re in a DirectClient call, we would assert that the caller does not have an active RecoveryUnit then use the existing code to set the ReadSource on the RecoveryUnit based on the requested readConcern. We may need to implement something inside DBDirectClient to push our ReadSource onto the stack somehow so that when we&apos;re done with the DBDirectClient call, we reset the original RecoveryUnit state.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2323208">SERVER-76481</key>
            <summary>RSLocalClient should not manually implement readConcern</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                            <label>techdebt</label>
                    </labels>
                <created>Tue, 25 Apr 2023 09:39:28 +0000</created>
                <updated>Wed, 25 Oct 2023 18:03:38 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5716250" author="louis.williams" created="Tue, 19 Sep 2023 20:14:15 +0000"  >&lt;p&gt;This is really complicated for many reasons. We just don&apos;t have a good, consistent, internal read API. All of the users of DBDirectClient want different things. Going to put this in the backlog and schedule a project to try to tackle this.&lt;/p&gt;</comment>
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