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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-35490] Create a test that investigates the behavior for moving an empty chunk.</title>
                <link>https://jira.mongodb.org/browse/SERVER-35490</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We currently have a suspicion that moving an empty chunk would skip through all of our majority commit checkpoints, and thus will be already-optimized in movement speed. Create a test that:&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;Creates a collection and shards it.&lt;/li&gt;
	&lt;li&gt;Splits the collection into ~100 chunks.&lt;/li&gt;
	&lt;li&gt;Move half of the chunks into another shard.&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;In doing so, you would time how long it takes to move these chunks en masse.&lt;/p&gt;

&lt;p&gt;You will also do investigation on the time difference between moving a chunk with one document and a chunk with zero documents.  Note that to do this, you must already have one chunk on each shard, so as to avoid the initial overhead it takes to create a new collection on a recipient shard.&lt;/p&gt;</description>
                <environment></environment>
        <key id="555654">SERVER-35490</key>
            <summary>Create a test that investigates the behavior for moving an empty chunk.</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="sarah.zhou@mongodb.com">Sarah Zhou</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                    </labels>
                <created>Thu, 7 Jun 2018 18:26:28 +0000</created>
                <updated>Tue, 10 Jul 2018 13:53:07 +0000</updated>
                            <resolved>Tue, 10 Jul 2018 13:53:07 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1919740" author="sarah.zhou" created="Wed, 13 Jun 2018 16:37:06 +0000"  >&lt;p&gt;Analysis of behavior: &lt;a href=&quot;https://docs.google.com/spreadsheets/d/1al3ssCx0na4S4oSqWq23A2i9CoJKUqrB685tNkS8X1o/edit?usp=sharing&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.google.com/spreadsheets/d/1al3ssCx0na4S4oSqWq23A2i9CoJKUqrB685tNkS8X1o/edit?usp=sharing&lt;/a&gt;&lt;/p&gt;
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