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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-48793] Remove &quot;targetIndex&quot; from ReplicationCoordinatorImpl::_handleHeartbeatResponse()</title>
                <link>https://jira.mongodb.org/browse/SERVER-48793</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;This code cleanup was caught during&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46379&quot; title=&quot;Implement upgrade/downgrade support for Initial Sync Semantics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46379&quot;&gt;&lt;del&gt;SERVER-46379&lt;/del&gt;&lt;/a&gt;. We should remove &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e1d7052125a3ca7767a81c4737628ba37077d17b/src/mongo/db/repl/replication_coordinator_impl_heartbeat.cpp#L96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&apos;targetIndex&apos;&lt;/a&gt; from ReplicationCoordinatorImpl::_handleHeartbeatResponse() to avoid any future mistakes of accessing &quot;targetIndex&quot; in that function, that can lead to server crash. Using targetIndex in replicationCoordinatorImpl::_handleHeartbeatResponse() is not safe because &lt;br/&gt;
targetIndex is the target&apos;s member index when the heartbeat was sent out by the node. But, a reconfig can make the target&apos;s member index to change the when the heart beat response was received by the node. So, ReplicationCoordinatorImpl::_handleHeartbeatResponse() should alway&apos;s use target&apos;s &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e1d7052125a3ca7767a81c4737628ba37077d17b/src/mongo/db/repl/replication_coordinator_impl_heartbeat.cpp#L95&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;host and port&lt;/a&gt; to access member data from the in-memory config.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1380612">SERVER-48793</key>
            <summary>Remove &quot;targetIndex&quot; from ReplicationCoordinatorImpl::_handleHeartbeatResponse()</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="3">Duplicate</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="suganthi.mani@mongodb.com">Suganthi Mani</reporter>
                        <labels>
                            <label>neweng</label>
                    </labels>
                <created>Mon, 15 Jun 2020 14:22:31 +0000</created>
                <updated>Tue, 6 Dec 2022 02:23:49 +0000</updated>
                            <resolved>Fri, 9 Oct 2020 14:21:39 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>4</watches>
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