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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-84153] Sharded cluster fixture set up does not account for proper multiversion setup</title>
                <link>https://jira.mongodb.org/browse/SERVER-84153</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Several test suites use the &lt;tt&gt;ShardedClusterFixture&lt;/tt&gt; to set up a sharded cluster before running specific tests, like for example &lt;a href=&quot;https://github.com/10gen/mongo/blob/ec00a6f6735cc84adf0694c9bbf4b46dd9a9c943/buildscripts/resmokeconfig/suites/sharding_jscore_passthrough.yml#L61&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;sharding_jscore_passthrough&lt;/a&gt;. In the &lt;a href=&quot;https://github.com/10gen/mongo/blob/ec00a6f6735cc84adf0694c9bbf4b46dd9a9c943/buildscripts/resmokelib/testing/fixtures/shardedcluster.py#L106-L113&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;setup code&lt;/a&gt; the internal &lt;tt&gt;ReplicaSetFixture&lt;/tt&gt; setup function is being called, and here the multiversion scenario &lt;a href=&quot;https://github.com/10gen/mongo/blob/fada100f38da46dddb387053579d3fa76ded466e/buildscripts/resmokelib/testing/fixtures/replicaset.py#L242-L251&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;is being considered&lt;/a&gt;, effectively running the &lt;tt&gt;setFeatureCompatibilityVersion&lt;/tt&gt; command immediately after starting the node. This is done in case we want to set up a mixed binaries replica set, which works fine in the &lt;tt&gt;ReplicaSetFixture&lt;/tt&gt;, but, it is problematic for a sharded cluster because it implies that the &lt;tt&gt;setFeatureCompatibilityVersion&lt;/tt&gt; command is going to be called directly in a shard, which is not a valid use case.&lt;/p&gt;

&lt;p&gt;The purpose of this ticket is to properly set up a sharded cluster with multiversion binaries. We could for example change the &lt;tt&gt;ShardedClusterFixture&lt;/tt&gt; setup, to detect that we&apos;re setting up a multiversion cluster (similarly to &lt;a href=&quot;https://github.com/10gen/mongo/blob/fada100f38da46dddb387053579d3fa76ded466e/buildscripts/resmokelib/testing/fixtures/replicaset.py#L242&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;ReplicaSetFixture&lt;/tt&gt;&lt;/a&gt;), and instead of starting the node with &lt;tt&gt;--shardsvr&lt;/tt&gt;, simply run the normal &lt;tt&gt;ReplicaSetFixture&lt;/tt&gt; setup (which will effectively set the proper FCV), and then restart it as a shard.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2524136">SERVER-84153</key>
            <summary>Sharded cluster fixture set up does not account for proper multiversion setup</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</assignee>
                                    <reporter username="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</reporter>
                        <labels>
                            <label>auto-reverted</label>
                    </labels>
                <created>Wed, 13 Dec 2023 19:17:12 +0000</created>
                <updated>Wed, 10 Jan 2024 16:40:56 +0000</updated>
                            <resolved>Wed, 10 Jan 2024 16:40:56 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="6000776" author="xgen-internal-githook" created="Wed, 10 Jan 2024 15:58:05 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Grillo&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84153&quot; title=&quot;Sharded cluster fixture set up does not account for proper multiversion setup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84153&quot;&gt;&lt;del&gt;SERVER-84153&lt;/del&gt;&lt;/a&gt; Use ShardingState API to determine whether a replica set is a shard in setFeatureCompatibilityVersion command (#17916)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 11b13362d48d9f3aadb4eabf53666f731a1bb508&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5a671c207aeab471ef3029262342813d4aec57b4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5a671c207aeab471ef3029262342813d4aec57b4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5990254" author="xgen-internal-githook" created="Fri, 5 Jan 2024 21:27:23 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;auto-revert-processor&apos;, &apos;email&apos;: &apos;dev-prod-dag@mongodb.com&apos;, &apos;username&apos;: &apos;&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84153&quot; title=&quot;Sharded cluster fixture set up does not account for proper multiversion setup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84153&quot;&gt;&lt;del&gt;SERVER-84153&lt;/del&gt;&lt;/a&gt; Use ShardingState API to determine whether a replica set is a shard in setFeatureCompatibilityVersion command (#17682)&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit ca522cdcb59570a27902a0634a94d073ba8d7bcd.&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: a8701ad28bc6f6284e17c94e1825f4e355ebb42e&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4fd7c7b5bbeeda30c026ed384a8c17a068c42e94&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4fd7c7b5bbeeda30c026ed384a8c17a068c42e94&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5988743" author="xgen-internal-githook" created="Fri, 5 Jan 2024 14:01:53 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Grillo&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84153&quot; title=&quot;Sharded cluster fixture set up does not account for proper multiversion setup&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84153&quot;&gt;&lt;del&gt;SERVER-84153&lt;/del&gt;&lt;/a&gt; Use ShardingState API to determine whether a replica set is a shard in setFeatureCompatibilityVersion command (#17682)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: ca522cdcb59570a27902a0634a94d073ba8d7bcd&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ee7ae38acbdc313892e1cb342f8e4ce954ec895a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ee7ae38acbdc313892e1cb342f8e4ce954ec895a&lt;/a&gt;&lt;/p&gt;</comment>
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                                        <issuelink>
            <issuekey id="2529598">SERVER-84334</issuekey>
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                                        <issuelink>
            <issuekey id="2397176">SERVER-79159</issuekey>
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