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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-58415] Evaluate the performance of the new workload on a modified version of master</title>
                <link>https://jira.mongodb.org/browse/SERVER-58415</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The goal of this task is to evaluate the performance of the new workload on a slightly modified version of master that includes the  where the part that &lt;a href=&quot;https://github.com/mongodb/mongo/blob/515723d10def74299cf7729148f946b538b82797/src/mongo/db/s/migration_source_manager.cpp#L529&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;notifies the Recipient&lt;/a&gt; of the &lt;tt&gt;moveChunk&lt;/tt&gt; happens &lt;a href=&quot;https://github.com/mongodb/mongo/blob/515723d10def74299cf7729148f946b538b82797/src/mongo/db/s/migration_source_manager.cpp#L513&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;under the critical section&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1814811">SERVER-58415</key>
            <summary>Evaluate the performance of the new workload on a modified version of master</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="9">Done</resolution>
                                        <assignee username="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="sergi.mateo-bellido@mongodb.com">Sergi Mateo Bellido</reporter>
                        <labels>
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                <created>Mon, 12 Jul 2021 07:11:40 +0000</created>
                <updated>Wed, 28 Jul 2021 08:22:09 +0000</updated>
                            <resolved>Wed, 28 Jul 2021 08:22:09 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3967302" author="JIRAUSER1257318" created="Wed, 28 Jul 2021 08:21:37 +0000"  >&lt;p&gt;This has been evaluated as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-58414&quot; title=&quot;Evaluate the performance of the new workload on master&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-58414&quot;&gt;&lt;del&gt;SERVER-58414&lt;/del&gt;&lt;/a&gt;. The &lt;a href=&quot;https://docs.google.com/spreadsheets/d/1xtthULBdq7jLvGy2PA7KRmb527jw81MQD_XGMM4N9Wk/edit?usp=sharing&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;results&lt;/a&gt; show that notifying the recipient and waiting for it to refresh the collection metadata while the donor is holding the critical section increases the critical section time by 50%. &lt;/p&gt;

&lt;p&gt;However, it is possible that this could be reduced by parallelizing the refreshes on the donor an recipient.&lt;/p&gt;</comment>
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