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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-50111] Secondary stuck with old sync source for reporting up to 30 seconds</title>
                <link>https://jira.mongodb.org/browse/SERVER-50111</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;EDIT: Cancelling the reporter on changing sync source is a more robust solution.&lt;/p&gt;

&lt;p&gt;syncSourceFeedbackNetworkTimeoutSecs is currently &lt;a href=&quot;https://github.com/mongodb/mongo/blob/eae31861e0f813f0099e1d490c4a622d75cd5a08/src/mongo/db/repl/sync_source_feedback.cpp#L57&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;hardcoded to 30s&lt;/a&gt;. In case of network partition, the sync source feedback report might need to take 30s before timing out on the replSetUpdatePosition remote command against the old sync source even though the node has selected a new sync source. This could result in majority commit point lag after failovers. One idea is to have the syncSourceFeedbackNetworkTimeoutSecs the same as the feedback reporter&apos;s interval (or plus a buffer). Another idea is to hardcode the syncSourceFeedbackNetworkTimeoutSecs to a smaller number because we don&apos;t generally expect replSetUpdatePosition to block and the current 30s seem too much for a socket timeout.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1429958">SERVER-50111</key>
            <summary>Secondary stuck with old sync source for reporting up to 30 seconds</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="lingzhi.deng@mongodb.com">Lingzhi Deng</reporter>
                        <labels>
                            <label>former-quick-wins</label>
                    </labels>
                <created>Tue, 4 Aug 2020 23:43:35 +0000</created>
                <updated>Tue, 6 Dec 2022 02:13:15 +0000</updated>
                                                                            <component>Replication</component>
                                        <votes>1</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="3322041" author="lingzhi.deng" created="Wed, 5 Aug 2020 12:36:40 +0000"  >&lt;p&gt;Cool, I think you are right. I added your comment in the description as well.&lt;/p&gt;</comment>
                            <comment id="3321716" author="siyuan.zhou@10gen.com" created="Wed, 5 Aug 2020 04:03:04 +0000"  >&lt;p&gt;I think cancelling the reporter on changing sync source is a more robust solution. We need to minimize the unnecessary waiting time in the longer term to improve planned maintenance, so canceling the request immediately makes more sense.&lt;/p&gt;</comment>
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