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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-44330] Investigate the behavior of concurrent replSetInitiate on different nodes</title>
                <link>https://jira.mongodb.org/browse/SERVER-44330</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running replSetInitiate commands concurrently against different nodes may split the nodes in a replset into two groups since the config versions are both 1 and different no-op oplog entries will be written on the nodes that run the commands. We need to investigate its consequence. It&apos;s acceptable if one group will eventually roll back their no-op and sync from the other, or the nodes fail loudly. It would be worse if no primary can be elected. We should prevent more than one primaries in the same term, rolling back majority committed data or inconsistency between data and the oplog.&lt;/p&gt;

&lt;p&gt;Similar questions exist when the configs of concurrent replSetInitiate commands share some but not all nodes.&lt;/p&gt;

&lt;p&gt;This scenario will be extremely rare, once in the whole lifetime of a replset. This also means a user intentionally runs two replSetInitiate commands against two nodes concurrently. It might only be possible with a misconfigured script.&lt;/p&gt;</description>
                <environment></environment>
        <key id="984779">SERVER-44330</key>
            <summary>Investigate the behavior of concurrent replSetInitiate on different nodes</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="siyuan.zhou@mongodb.com">Siyuan Zhou</reporter>
                        <labels>
                    </labels>
                <created>Thu, 31 Oct 2019 02:24:31 +0000</created>
                <updated>Tue, 6 Dec 2022 02:43:29 +0000</updated>
                                                                            <component>Replication</component>
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