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    <title>MongoDB Jira</title>
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    <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-77870] Support mirrored reads for update statements</title>
                <link>https://jira.mongodb.org/browse/SERVER-77870</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, we only do mirrored reads for the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c35bad3b048e8d885bf0b7517aacd2349ea81d14/src/mongo/db/commands/write_commands.cpp#L403-L408&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;first&lt;/a&gt; update statement in an update command. For parity, we will only do a mirrored read for the first update statement in a bulkWrite command. Optionally, we can also do mirrored reads for the first update statement for each namespace in a bulkWrite. That will require some work in &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c35bad3b048e8d885bf0b7517aacd2349ea81d14/src/mongo/db/mirror_maestro.cpp#L394-L417&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MirrorMaestroImpl::_mirror&lt;/a&gt; to support multiple mirrored requests from a single command invocation. Since mirrored reads are best-effort, this is optional.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2361390">SERVER-77870</key>
            <summary>Support mirrored reads for update statements</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="wenbin.zhu@mongodb.com">Wenbin Zhu</assignee>
                                    <reporter username="sean.zimmerman@mongodb.com">Sean Zimmerman</reporter>
                        <labels>
                            <label>milestone-1</label>
                    </labels>
                <created>Wed, 7 Jun 2023 14:41:21 +0000</created>
                <updated>Sun, 29 Oct 2023 21:20:22 +0000</updated>
                            <resolved>Fri, 11 Aug 2023 01:07:39 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5627600" author="xgen-internal-githook" created="Thu, 10 Aug 2023 23:40:05 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Wenbin Zhu&apos;, &apos;email&apos;: &apos;wenbin.zhu@mongodb.com&apos;, &apos;username&apos;: &apos;WenbinZhu&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-77870&quot; title=&quot;Support mirrored reads for update statements&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-77870&quot;&gt;&lt;del&gt;SERVER-77870&lt;/del&gt;&lt;/a&gt; Support mirrored reads for update ops in bulkWrite command.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/95e5b9af944d585dbf4b60c30c778490901f3f6c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/95e5b9af944d585dbf4b60c30c778490901f3f6c&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is related to">
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            <issuekey id="2407481">SERVER-79638</issuekey>
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