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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-47345] Fix causal consistency bug in $merge code on mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-47345</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We are not passing &lt;tt&gt;afterClusterTime&lt;/tt&gt; when we do &lt;tt&gt;listIndexes&lt;/tt&gt; in aggregate &lt;tt&gt;$merge&lt;/tt&gt; &lt;a href=&quot;https://github.com/mongodb/mongo/blob/cac63cab472d04b46b691e52e014aa621939a418/src/mongo/db/pipeline/process_interface/mongos_process_interface.cpp#L294-L299&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. So the &lt;tt&gt;listIndexes&lt;/tt&gt; doesn&apos;t obey the causal consistency and runs in parallel with the &lt;tt&gt;createIndexes&lt;/tt&gt; command.&lt;br/&gt;
This can be fixed by copying the readConcern (which holds afterClusterTime) from &lt;tt&gt;opCtx&lt;/tt&gt; .&lt;/p&gt;</description>
                <environment></environment>
        <key id="1305338">SERVER-47345</key>
            <summary>Fix causal consistency bug in $merge code on mongos</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="arun.banala@mongodb.com">Arun Banala</assignee>
                                    <reporter username="arun.banala@mongodb.com">Arun Banala</reporter>
                        <labels>
                            <label>qexec-team</label>
                    </labels>
                <created>Mon, 6 Apr 2020 10:26:14 +0000</created>
                <updated>Sun, 29 Oct 2023 22:09:54 +0000</updated>
                            <resolved>Tue, 7 Apr 2020 13:35:07 +0000</resolved>
                                                    <fixVersion>4.4.0-rc0</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3029515" author="arun.banala" created="Tue, 7 Apr 2020 16:02:36 +0000"  >&lt;p&gt;Author:&lt;/p&gt;

{&apos;name&apos;: &apos;Arun Banala&apos;, &apos;email&apos;: &apos;arun.banala@mongodb.com&apos;, &apos;username&apos;: &apos;banarun&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-47345&quot; title=&quot;Fix causal consistency bug in $merge code on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-47345&quot;&gt;&lt;del&gt;SERVER-47345&lt;/del&gt;&lt;/a&gt; Fix causal consistency bug in $merge code on mongos&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/51a0252cdc5918d71bc816b4b360e2ea6145962d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/51a0252cdc5918d71bc816b4b360e2ea6145962d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3029433" author="xgen-internal-githook" created="Tue, 7 Apr 2020 15:33:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Arun Banala&apos;, &apos;email&apos;: &apos;arun.banala@mongodb.com&apos;, &apos;username&apos;: &apos;banarun&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-47345&quot; title=&quot;Fix causal consistency bug in $merge code on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-47345&quot;&gt;&lt;del&gt;SERVER-47345&lt;/del&gt;&lt;/a&gt; Fix causal consistency bug in $merge code on mongos&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/961c26475c1560f575dd95d6a30294d07b72a707&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/961c26475c1560f575dd95d6a30294d07b72a707&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2125569">SERVER-69244</issuekey>
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