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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-80145] Avoid explicit callers of ChunkManager::dbPrimary() when doing shard targeting in agg code</title>
                <link>https://jira.mongodb.org/browse/SERVER-80145</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Fix &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dba3528ea1160ecb43f5b80af9824ae1a5f5d5ee/src/mongo/s/cluster_commands_helpers.cpp#L735-L749&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;getTargetedShardsForQuery()&lt;/a&gt; to route using the routing table whenever it is available&#160;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/49deaa4680ad879a1c79901a4dfeb3f7b013c4c4/src/mongo/db/pipeline/sharded_agg_helpers.cpp#L1166&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Caller related to determining whether to split the pipeline&lt;/a&gt; should be handled when we get rid of the kPrimaryShard host type requirement&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/49deaa4680ad879a1c79901a4dfeb3f7b013c4c4/src/mongo/db/pipeline/sharded_agg_helpers.cpp#L309-L314&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Callers in establishShardCursors()&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/49deaa4680ad879a1c79901a4dfeb3f7b013c4c4/src/mongo/db/pipeline/sharded_agg_helpers.cpp#L1315-L1317&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Calculating the nShards statistic&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Agg code which is &lt;a href=&quot;https://github.com/mongodb/mongo/blob/49deaa4680ad879a1c79901a4dfeb3f7b013c4c4/src/mongo/s/query/cluster_aggregation_planner.cpp#L851&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;contacting the primary shard over the wire in order to get the UUID and collation associated with an unsharded collection&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Note that some of these callers MAY need to stick around until after we cut a branch for 8.0 as we may still need to rely on the notion of db primary in some cases if the FCV is NOT 8.0.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2419074">SERVER-80145</key>
            <summary>Avoid explicit callers of ChunkManager::dbPrimary() when doing shard targeting in agg code</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="mihai.andrei@mongodb.com">Mihai Andrei</assignee>
                                    <reporter username="mihai.andrei@mongodb.com">Mihai Andrei</reporter>
                        <labels>
                    </labels>
                <created>Wed, 16 Aug 2023 15:56:56 +0000</created>
                <updated>Tue, 21 Nov 2023 22:27:09 +0000</updated>
                            <resolved>Fri, 3 Nov 2023 21:15:26 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="5848498" author="xgen-internal-githook" created="Thu, 2 Nov 2023 07:33:10 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Mihai Andrei&apos;, &apos;email&apos;: &apos;mihai.andrei@mongodb.com&apos;, &apos;username&apos;: &apos;mtandrei&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-80145&quot; title=&quot;Avoid explicit callers of ChunkManager::dbPrimary() when doing shard targeting in agg code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-80145&quot;&gt;&lt;del&gt;SERVER-80145&lt;/del&gt;&lt;/a&gt; Remove calls to &apos;ChunkManager::dbPrimary()&apos; in aggregation&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9bd47d5639acb6a9853204667596bad2b723daee&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9bd47d5639acb6a9853204667596bad2b723daee&lt;/a&gt;&lt;/p&gt;</comment>
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                                        <issuelink>
            <issuekey id="2332341">SERVER-76855</issuekey>
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                            <issuelinktype id="10010">
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                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="2485535">SERVER-82566</issuekey>
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            <issuekey id="2432980">DOCS-16362</issuekey>
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