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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-68754] Make ChunkManagerTargeter support taking in a custom ChunkManager</title>
                <link>https://jira.mongodb.org/browse/SERVER-68754</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;To allow the analyzeShardKey command to determine if a candidate shard key can lead to a hot chunk, we need the ability to simulate routing based on the synthetic routing table created based on the candidate shard key. So we need to make the ChunkManagerTargeter support using synthetic routing info rather than the &lt;a href=&quot;https://github.com/10gen/mongo/blob/958ad9abfc80861d3f43f44da694e83464b01e1d/src/mongo/s/chunk_manager_targeter.cpp#L246&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;one from the CatalogCache&lt;/a&gt; to do the targeting.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2111915">SERVER-68754</key>
            <summary>Make ChunkManagerTargeter support taking in a custom ChunkManager</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="adi.zaimi@mongodb.com">Adi Zaimi</assignee>
                                    <reporter username="cheahuychou.mao@mongodb.com">Cheahuychou Mao</reporter>
                        <labels>
                    </labels>
                <created>Thu, 11 Aug 2022 19:17:05 +0000</created>
                <updated>Sun, 29 Oct 2023 21:34:37 +0000</updated>
                            <resolved>Mon, 10 Oct 2022 18:40:14 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4891213" author="xgen-internal-githook" created="Mon, 10 Oct 2022 16:21:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Adi Zaimi&apos;, &apos;email&apos;: &apos;adizaimi@yahoo.com&apos;, &apos;username&apos;: &apos;adizaimi&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68754&quot; title=&quot;Make ChunkManagerTargeter support taking in a custom ChunkManager&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68754&quot;&gt;&lt;del&gt;SERVER-68754&lt;/del&gt;&lt;/a&gt; Use custom ChunkManager for ChunkManagerTargeter&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0e63fb98168e715836eac1da34695c299da11cd7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0e63fb98168e715836eac1da34695c299da11cd7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4746307" author="kaloian.manassiev" created="Fri, 12 Aug 2022 09:56:20 +0000"  >&lt;p&gt;If you are going to be working on the ChunkManagerTargeter, may I ask that you guys completely decouple it from the chunk manager path and make it stateless? One thing that I was thinking is to actually move the targeting functionality from the the CMT to be in the ChunkManager and made stateless.&lt;/p&gt;

&lt;p&gt;As it stands now, the CMT is both a &quot;targeter&quot; and state-managing around the stale versions that were received. The stateful logic should be moved in the BatchWriteExecutor instead and the stateless targeting functionality, should be moved in the ChunkManager. That way we can get rid of this class entirely.&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="2111925">SERVER-68758</issuekey>
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