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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-45110] Flow control lag check can report isLagged as false even though lag is large if operations are sparse</title>
                <link>https://jira.mongodb.org/browse/SERVER-45110</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In instances where few operations cause large replication lag (e.g., due to an unresponsive secondary), Flow Control&apos;s &lt;a href=&quot;https://github.com/mongodb/mongo/blob/a02960827dd9d145292eb32d9745cdd52001ebda/src/mongo/db/storage/flow_control.cpp#L333-L336&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;lag check&lt;/a&gt; can report isLagged to be false. This could be due to a bug in &lt;tt&gt;_approximateOpsBetween&lt;/tt&gt;. The work for this ticket should be to investigate the behavior of the isLagged check in this scenario.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1050623">SERVER-45110</key>
            <summary>Flow control lag check can report isLagged as false even though lag is large if operations are sparse</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="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-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="maria.vankeulen@mongodb.com">Maria van Keulen</reporter>
                        <labels>
                    </labels>
                <created>Thu, 12 Dec 2019 20:30:22 +0000</created>
                <updated>Tue, 6 Dec 2022 02:40:20 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="3593247" author="connie.chen" created="Mon, 1 Feb 2021 19:25:10 +0000"  >&lt;p&gt;If there are very few operations then flow control lag may not report reliably. Closing this as &quot;Works as designed.&quot; Filed&#160;DOCSP-14267 to update documentation accordingly.&#160;&lt;/p&gt;</comment>
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