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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-54785] Complete TODO listed in SERVER-52719</title>
                <link>https://jira.mongodb.org/browse/SERVER-54785</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There is a TODO in the codebase referencing a resolved ticket which is assigned to you.&lt;/p&gt;

&lt;p&gt;Please follow this link to see the lines of code referencing this resolved ticket:&lt;br/&gt;
 &lt;a href=&quot;https://github.com/mongodb/mongo/search?q=SERVER-52719&amp;amp;type=Code&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/search?q=SERVER-52719&amp;amp;type=Code&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The next steps for this ticket are to either remove the outdated TODO or follow the steps in the TODO if it is correct. If the latter, please update the summary and description of this ticket to represent the work you&apos;re actually doing.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Ticket update:&lt;/p&gt;

&lt;p&gt;As part of removing the TODOs to enable testing, we found the following bug:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;Recipient exits the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd19665e9ccad740ce082ce295afc6968bbf9d04/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L1765&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;AsyncTry&lt;/a&gt; loop after &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd19665e9ccad740ce082ce295afc6968bbf9d04/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L2035-L2036&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;fulfilling the data consistent promise&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;Donor sees that the promise is fulfilled by immediately fails over.&lt;/li&gt;
	&lt;li&gt;Recipient detects donor failover and aborts the migration instead of retrying.&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;So as part of this ticket, we want to make sure we retry on donor failover in the above case. The solution is to move the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd19665e9ccad740ce082ce295afc6968bbf9d04/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L2083&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;following wait on the tenantOplogApplier&lt;/a&gt; into the AsyncTry and to also synchronize the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd19665e9ccad740ce082ce295afc6968bbf9d04/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L395-L419&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;following code in the case of concurrent shutdown of the oplog applier&lt;/a&gt; due to migration retry.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1633343">SERVER-54785</key>
            <summary>Complete TODO listed in SERVER-52719</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="jason.chan@mongodb.com">Jason Chan</assignee>
                                    <reporter username="dbeng-pm-bot">PM Bot</reporter>
                        <labels>
                            <label>autogen-todo</label>
                            <label>pm-1791_non-cloud-blocking</label>
                            <label>pm-1791_other_required</label>
                    </labels>
                <created>Thu, 25 Feb 2021 04:53:17 +0000</created>
                <updated>Sun, 29 Oct 2023 21:57:03 +0000</updated>
                            <resolved>Wed, 17 Mar 2021 16:22:51 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3668083" author="xgen-internal-githook" created="Wed, 17 Mar 2021 01:55:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jason Chan&apos;, &apos;email&apos;: &apos;jason.chan@mongodb.com&apos;, &apos;username&apos;: &apos;jasonjhchan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54785&quot; title=&quot;Complete TODO listed in SERVER-52719&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54785&quot;&gt;&lt;del&gt;SERVER-54785&lt;/del&gt;&lt;/a&gt; Complete TODO listed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-52719&quot; title=&quot;Restart TenantMigrationRecipientService future chain on donor failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-52719&quot;&gt;&lt;del&gt;SERVER-52719&lt;/del&gt;&lt;/a&gt; and allow recipient to&lt;br/&gt;
retry on donor failover after data consistent&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/06ec07e0aab34e645fa116543afc88695d2d63dc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/06ec07e0aab34e645fa116543afc88695d2d63dc&lt;/a&gt;&lt;/p&gt;</comment>
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