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    <title>MongoDB Jira</title>
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    <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-72829] Ensure Shard Merge supports retryable writes</title>
                <link>https://jira.mongodb.org/browse/SERVER-72829</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, retryable writes written during oplog catchup are compatible with change streams. Unfortunately, having retryable writes written before the migration starts will cause the migration to fail. The retryable write on the Donor will cause a change collection entry to be generated on the Donor. &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70671&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;SERVER-70671&lt;/a&gt; updated the Shard Merge protocol to copy all change collection entries to the Recipient. When we attempt to pre-fetch and apply retryable writes on the Recipient, we attempt to re-create the same change collection entry, which fails with a &lt;tt&gt;DuplicateKey&lt;/tt&gt; error. &lt;/p&gt;

&lt;p&gt;We&apos;ll need to ensure we&apos;re setting &lt;tt&gt;tid&lt;/tt&gt; &lt;a href=&quot;https://github.com/10gen/mongo/blob/368e0bdc94f6a8e5db492766f639ae7caa69ffdc/src/mongo/db/repl/tenant_oplog_applier.cpp#L596&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;, either via &lt;tt&gt;entry.getNss().tenantId()&lt;/tt&gt; or &lt;tt&gt;entry.getTid()&lt;/tt&gt;. Additionally, we should ensure we are setting &lt;tt&gt;tid&lt;/tt&gt; in &lt;tt&gt;applyOps&lt;/tt&gt; entries in the tenant migration recipient service and tenant oplog applier&lt;/p&gt;

&lt;p&gt;We should ensure that both &lt;b&gt;retryable writes&lt;/b&gt; and &lt;b&gt;retryable FindAndModify&lt;/b&gt; work as part of this ticket.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2232665">SERVER-72829</key>
            <summary>Ensure Shard Merge supports retryable writes</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="christopher.caplinger@mongodb.com">Christopher Caplinger</assignee>
                                    <reporter username="christopher.caplinger@mongodb.com">Christopher Caplinger</reporter>
                        <labels>
                            <label>change-streams-support</label>
                    </labels>
                <created>Fri, 13 Jan 2023 14:23:55 +0000</created>
                <updated>Sun, 29 Oct 2023 21:28:15 +0000</updated>
                            <resolved>Fri, 17 Feb 2023 16:11:04 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5205617" author="xgen-internal-githook" created="Thu, 16 Feb 2023 21:46:52 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Christopher Caplinger&apos;, &apos;email&apos;: &apos;christopher.caplinger@mongodb.com&apos;, &apos;username&apos;: &apos;UnicodeSnowman&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-72829&quot; title=&quot;Ensure Shard Merge supports retryable writes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-72829&quot;&gt;&lt;del&gt;SERVER-72829&lt;/del&gt;&lt;/a&gt;: Shard Merge supports retryable writes with Change Streams&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b7548b6c10697166a35baf1044049f4c6d06fdd2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b7548b6c10697166a35baf1044049f4c6d06fdd2&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2217308">SERVER-72354</issuekey>
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