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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-36237] Integrate atClusterTime selection on mongos with RouterSession</title>
                <link>https://jira.mongodb.org/browse/SERVER-36237</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, atClusterTime is chosen in the find and aggregate paths and directly put into the readConcerns of the requests created by those commands. Instead, atClusterTime should be placed on the RouterSession during targeting and added to requests in TransactionParticipant::attachTxnFieldsIfNeeded. snapshot level readConcern should also be disallowed on mongos for commands not in a multi statement transaction.&lt;/p&gt;

&lt;p&gt;Mongos may try several different atClusterTime values until it finds one that all shards can provide a snapshot at. Mongos should remember the first value that was successful, so every subsequent statement that targets a new shard can use it.&lt;/p&gt;</description>
                <environment></environment>
        <key id="574968">SERVER-36237</key>
            <summary>Integrate atClusterTime selection on mongos with RouterSession</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="cheahuychou.mao@mongodb.com">Cheahuychou Mao</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                            <label>ShardedTxn:GlobalSnapshot</label>
                    </labels>
                <created>Mon, 23 Jul 2018 14:15:44 +0000</created>
                <updated>Sun, 29 Oct 2023 22:29:38 +0000</updated>
                            <resolved>Tue, 21 Aug 2018 16:07:03 +0000</resolved>
                                                    <fixVersion>4.1.2</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1981385" author="xgen-internal-githook" created="Tue, 21 Aug 2018 16:06:15 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Cheahuychou Mao&apos;, &apos;email&apos;: &apos;cheahuychou.mao@mongodb.com&apos;, &apos;username&apos;: &apos;cheahuychou&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36237&quot; title=&quot;Integrate atClusterTime selection on mongos with RouterSession&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36237&quot;&gt;&lt;del&gt;SERVER-36237&lt;/del&gt;&lt;/a&gt; Integrate atClusterTime selection on mongos with TransactionRouter&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0e93c2a82e44727e41415a3fd027ecfa6e1b7cda&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0e93c2a82e44727e41415a3fd027ecfa6e1b7cda&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="586620">SERVER-36591</issuekey>
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