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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-14552] Move TopologyCoordinatorImpl::prepareHeartbeatResponse into the ReplicationCoordinator</title>
                <link>https://jira.mongodb.org/browse/SERVER-14552</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently in the replication rewrite we generate responses to heartbeat messages by scheduling a callback in the TopologyCoordinator.  This requires 2 context switches to specific threads to be able to reply to a heartbeat.  I am concerned that in overloaded systems this could cause heartbeats to time out more readily.  Ideally the coordinator would know all it needs to to build the response, then could schedule a callback on the topcoord for it to update whatever state needed to track the fact that a heartbeat was received, but without blocking the thread that received the heartbeat.  This would allow heartbeats to be responded to as soon as possible&lt;/p&gt;</description>
                <environment></environment>
        <key id="147040">SERVER-14552</key>
            <summary>Move TopologyCoordinatorImpl::prepareHeartbeatResponse into the ReplicationCoordinator</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="spencer@mongodb.com">Spencer Brody</reporter>
                        <labels>
                    </labels>
                <created>Mon, 14 Jul 2014 19:51:51 +0000</created>
                <updated>Wed, 10 Dec 2014 23:14:49 +0000</updated>
                            <resolved>Thu, 28 Aug 2014 14:44:40 +0000</resolved>
                                                                    <component>Internal Code</component>
                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="706743" author="milkie" created="Thu, 28 Aug 2014 14:44:31 +0000"  >&lt;p&gt;You still need some way of getting the information you need out of the TopoCoord (like the sync source), so there will always be some concurrency considerations here.&lt;br/&gt;
Also, if the machine is overloaded, technically it should be treated as DOWN, no?&lt;/p&gt;</comment>
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