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    <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-44635] MR in Agg: Remove in-line mapReduce execution statistics</title>
                <link>https://jira.mongodb.org/browse/SERVER-44635</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;These will be replaced by support for mapReduce explain with executionStats&lt;/p&gt;</description>
                <environment></environment>
        <key id="1002663">SERVER-44635</key>
            <summary>MR in Agg: Remove in-line mapReduce execution statistics</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="james.wahlin@mongodb.com">James Wahlin</assignee>
                                    <reporter username="james.wahlin@mongodb.com">James Wahlin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 14 Nov 2019 17:09:00 +0000</created>
                <updated>Sun, 29 Oct 2023 22:14:55 +0000</updated>
                            <resolved>Thu, 21 Nov 2019 20:56:08 +0000</resolved>
                                                    <fixVersion>4.3.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2560336" author="xgen-internal-githook" created="Thu, 21 Nov 2019 20:52:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;James Wahlin&apos;, &apos;username&apos;: &apos;jameswahlin&apos;, &apos;email&apos;: &apos;james.wahlin@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-44635&quot; title=&quot;MR in Agg: Remove in-line mapReduce execution statistics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-44635&quot;&gt;&lt;del&gt;SERVER-44635&lt;/del&gt;&lt;/a&gt; MR in Agg: Remove in-line mapReduce execution statistics&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fe788b0989dd6cbaa1c4ea95e01f1967bb94fdf7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fe788b0989dd6cbaa1c4ea95e01f1967bb94fdf7&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1018938">DRIVERS-773</issuekey>
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            <issuekey id="971905">DOCS-13129</issuekey>
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            <issuekey id="1018937">DOCS-13238</issuekey>
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                    <name>Duplicate</name>
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            <issuekey id="1002664">SERVER-44636</issuekey>
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            <issuelink>
            <issuekey id="1002686">SERVER-44637</issuekey>
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                            <customfieldvalue>With this change, the mapReduce command will no longer return execution statistics as part of the command response object. Instead users will be requested to run mapReduce via explain command with executionStats.&lt;br/&gt;
&lt;br/&gt;
As discussed with Jeff Yemin, this will break a method used by the legacy Java driver API to retrieve stats. It is possible that other drivers will be affected as well.</customfieldvalue>

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