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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-27632] Replace &apos;shardVersion&apos; field in splitChunk, from which we only access the epoch, with an &apos;epoch&apos; field</title>
                <link>https://jira.mongodb.org/browse/SERVER-27632</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We&apos;re doing this for moveChunk in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25673&quot; title=&quot;Remove ChunkManager use in the MigrationManager&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25673&quot;&gt;&lt;del&gt;SERVER-25673&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;&apos;shardVersion&apos; in splitChunk holds the collectionVersion of the chunk being split. Rather than abusing the &apos;shardVersion&apos; field that gets parsed and placed in OperationShardingState, send an &apos;epoch&apos; field that splitChunk handles.&lt;/p&gt;</description>
                <environment></environment>
        <key id="344423">SERVER-27632</key>
            <summary>Replace &apos;shardVersion&apos; field in splitChunk, from which we only access the epoch, with an &apos;epoch&apos; field</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="9">Done</resolution>
                                        <assignee username="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Wed, 11 Jan 2017 15:51:31 +0000</created>
                <updated>Wed, 5 Apr 2017 11:34:26 +0000</updated>
                            <resolved>Fri, 10 Mar 2017 20:40:38 +0000</resolved>
                                                    <fixVersion>3.5.5</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1521531" author="xgen-internal-githook" created="Fri, 10 Mar 2017 20:40:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;DiannaHohensee&apos;, u&apos;name&apos;: u&apos;Dianna Hohensee&apos;, u&apos;email&apos;: u&apos;dianna.hohensee@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27632&quot; title=&quot;Replace &amp;#39;shardVersion&amp;#39; field in splitChunk, from which we only access the epoch, with an &amp;#39;epoch&amp;#39; field&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27632&quot;&gt;&lt;del&gt;SERVER-27632&lt;/del&gt;&lt;/a&gt; replace &apos;shardVersion&apos; field in splitChunk with an &apos;epoch&apos; field&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/56810e6acb3a0425284189d852eaefb391e5f800&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/56810e6acb3a0425284189d852eaefb391e5f800&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="309852">SERVER-25673</issuekey>
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