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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-47784] Remove support of $ _internalReadAtClusterTime for dbHash</title>
                <link>https://jira.mongodb.org/browse/SERVER-47784</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Remove usages of &lt;a href=&quot;https://github.com/mongodb/mongo/blob/abd8f45403473fcb35204d10ba0f5a260d4105ef/src/mongo/db/commands/dbhash.cpp#L140-L208&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;$_internalReadAtClusterTime&lt;/a&gt; in &lt;tt&gt;dbHash&lt;/tt&gt;.&lt;/p&gt;</description>
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        <key id="1329659">SERVER-47784</key>
            <summary>Remove support of $ _internalReadAtClusterTime for dbHash</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="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-repl">Backlog - Replication Team</assignee>
                                    <reporter username="lingzhi.deng@mongodb.com">Lingzhi Deng</reporter>
                        <labels>
                    </labels>
                <created>Mon, 27 Apr 2020 03:55:03 +0000</created>
                <updated>Tue, 6 Dec 2022 02:29:04 +0000</updated>
                                                                            <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3214536" author="ali.mir" created="Thu, 18 Jun 2020 16:45:51 +0000"  >&lt;p&gt;Snapshot reads are not supported on eMRC=false variants. As a result, we use the&#160;&lt;tt&gt;$_internalReadAtClusterTime&lt;/tt&gt;&#160;logic in the dbHash background hook when eMRC=false instead of snapshot reads &lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/shell/replsettest.js#L1971&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. We cannot fully remove the &lt;tt&gt;$_internalReadAtClusterTime&lt;/tt&gt; field from dbHash until the eMRC=false variant is discontinued. As a result, &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=lingzhi.deng&quot; class=&quot;user-hover&quot; rel=&quot;lingzhi.deng&quot;&gt;lingzhi.deng&lt;/a&gt;&#160;and I have discussed and we will move this ticket into the&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/PM-1769&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;Remove Support for enableMajorityReadConcern:false&lt;/a&gt; epic.&lt;/p&gt;</comment>
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