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    <title>MongoDB Jira</title>
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    <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-51660] Propagate resharding fields through the enqueued metadata combination algorithm</title>
                <link>https://jira.mongodb.org/browse/SERVER-51660</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If we have multiple CollAndChunkTasks enqueued to be persisted to disk, we will lose the &lt;tt&gt;reshardingFields&lt;/tt&gt; field &lt;a href=&quot;https://github.com/mongodb/mongo/blob/14bfbd8833706912617c0c904cce9847fbbbd0f1/src/mongo/db/s/shard_server_catalog_cache_loader.cpp#L1346-L1386&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;when iterating through the tasks&lt;/a&gt;. &lt;/p&gt;

&lt;p&gt;We&apos;re assuming with this ticket that the iteration will be from oldest to newest, so we can always prefer the next task&apos;s &lt;tt&gt;ReshardingFieds&lt;/tt&gt; struct when iterating. This ticket&apos;s implementer will need to verify that assumption with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;If the above assumption isn&apos;t correct, we can write a &lt;tt&gt;ReshardingFields&lt;/tt&gt; comparator. It&apos;s safe just to compare based on state, because the coordinator should never modify the &lt;tt&gt;ReshardingFields&lt;/tt&gt; for a collection when not also modifying state.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1515657">SERVER-51660</key>
            <summary>Propagate resharding fields through the enqueued metadata combination algorithm</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="janna.golden@mongodb.com">Janna Golden</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                            <label>PM-234-M1</label>
                            <label>PM-234-T-lifecycle</label>
                    </labels>
                <created>Thu, 15 Oct 2020 16:46:40 +0000</created>
                <updated>Sun, 29 Oct 2023 22:01:52 +0000</updated>
                            <resolved>Thu, 15 Oct 2020 21:41:56 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3447424" author="xgen-internal-githook" created="Thu, 15 Oct 2020 21:37:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jannaerin&apos;, &apos;email&apos;: &apos;golden.janna@gmail.com&apos;, &apos;username&apos;: &apos;jannaerin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51660&quot; title=&quot;Propagate resharding fields through the enqueued metadata combination algorithm&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51660&quot;&gt;&lt;del&gt;SERVER-51660&lt;/del&gt;&lt;/a&gt; Propagate resharding fields through the enqueued metadata combination algorithm&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3b374a0a3ce7425b06002b239733553d60e454e7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3b374a0a3ce7425b06002b239733553d60e454e7&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1494823">SERVER-51209</issuekey>
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