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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-65495] Heartbeat response received during application of recipient config may interrupt shard split</title>
                <link>https://jira.mongodb.org/browse/SERVER-65495</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The following steps describe an error discovered when developing the shard split passthrough test fixtures:&lt;/p&gt;

&lt;p&gt;1. Donor applies split config locally, and increases its term/version to (2, 1)&lt;br/&gt;
1. Recipient node issues a heartbeat with term/version (1, 1) to donor&lt;br/&gt;
2. Recipient concurrently receives a heartbeat with the split config, and applies the recipient config locally with term/version (1,1) (resets to the initial term/version for this new set name)&lt;br/&gt;
3. Recipient receives a response for the heartbeat it sent &lt;em&gt;before&lt;/em&gt; changing its set name, the response includes a config for the donor at (2,1)&lt;br/&gt;
4. Because set name is not considered during validation of incoming config, the recipient now attempts to apply the config for the old set name to itself locally. This fails for other, unrelated validations.&lt;/p&gt;

&lt;p&gt;The fix is to reject heartbeat responses for set names which do not match the local set name. &lt;/p&gt;</description>
                <environment></environment>
        <key id="2023498">SERVER-65495</key>
            <summary>Heartbeat response received during application of recipient config may interrupt shard split</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="matt.broadstone@mongodb.com">Matt Broadstone</assignee>
                                    <reporter username="matt.broadstone@mongodb.com">Matt Broadstone</reporter>
                        <labels>
                    </labels>
                <created>Tue, 12 Apr 2022 18:14:20 +0000</created>
                <updated>Sun, 29 Oct 2023 21:39:36 +0000</updated>
                            <resolved>Thu, 14 Apr 2022 12:38:41 +0000</resolved>
                                                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4482933" author="xgen-internal-githook" created="Thu, 14 Apr 2022 12:36:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Matt Broadstone&apos;, &apos;email&apos;: &apos;mbroadst@mongodb.com&apos;, &apos;username&apos;: &apos;mbroadst&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65495&quot; title=&quot;Heartbeat response received during application of recipient config may interrupt shard split&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65495&quot;&gt;&lt;del&gt;SERVER-65495&lt;/del&gt;&lt;/a&gt; Reject inconsistent set names in heartbeat responses&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bc24f41061273bf92700b2f552c04cbf53cee249&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bc24f41061273bf92700b2f552c04cbf53cee249&lt;/a&gt;&lt;/p&gt;</comment>
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