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    <title>MongoDB Jira</title>
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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-68452] Add a jstest to cover the compatibility between DDL coordinator code and recovery documents across FCV versions</title>
                <link>https://jira.mongodb.org/browse/SERVER-68452</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As part of PM-2933, the team is moving from the DDL shard command classes to the DDL coordinator one the logic to determine whether a user request is targeting an existing timeseries sharded collection.&lt;/p&gt;

&lt;p&gt;Such change has effects on the value of the `namespace` field stored in the DDL recovery document as part of the operation identifier, which in case of timeseries collection may contain:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;FCV 6.1: the value of the &lt;tt&gt;view&lt;/tt&gt; namespace&lt;/li&gt;
	&lt;li&gt;FCV 6.0: the value of the &lt;tt&gt;buckets&lt;/tt&gt; namespace&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The server code (thanks to the modifications introduced by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-68384&quot; title=&quot;Drain all DDL coordinators before downgrading to FCV 6.0&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-68384&quot;&gt;&lt;del&gt;SERVER-68384&lt;/del&gt;&lt;/a&gt;) is expected to correctly handle the recovery of DDL operations under the following scenarios:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;FCV 6.1 re-executing a DDL request based on a recovery document generated by FCV 6.0 code&lt;/li&gt;
	&lt;li&gt;FCV 6.0 re-executing a DDL request based on a recovery document generated by FCV 6.1 code&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;but we lack the needed jstest to cover this.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2103700">SERVER-68452</key>
            <summary>Add a jstest to cover the compatibility between DDL coordinator code and recovery documents across FCV versions</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="tommaso.tocci@mongodb.com">Tommaso Tocci</assignee>
                                    <reporter username="paolo.polato@mongodb.com">Paolo Polato</reporter>
                        <labels>
                    </labels>
                <created>Mon, 1 Aug 2022 15:12:48 +0000</created>
                <updated>Fri, 16 Sep 2022 10:59:30 +0000</updated>
                            <resolved>Fri, 16 Sep 2022 10:58:45 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4832959" author="JIRAUSER1259531" created="Fri, 16 Sep 2022 10:57:47 +0000"  >&lt;p&gt;After committing &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62356&quot; title=&quot;shardCollection for time-series is not done under the critical section&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62356&quot;&gt;&lt;del&gt;SERVER-62356&lt;/del&gt;&lt;/a&gt;, it could be verified that the multiversion suites that already exist in Evergreen already offer the code coverage requested by this ticket (which is going to be closed as &quot;Won&apos;t do&quot;).&lt;/p&gt;</comment>
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