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    <title>MongoDB Jira</title>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-34998] Ignore oplog timeout in serverStatus opLatencies</title>
                <link>https://jira.mongodb.org/browse/SERVER-34998</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The opLatencies section of serverStatus was added in MongoDB 3.4. These metrics are collected by FTDC, Ops Manager/Cloud Manager monitoring, and third party tools.&lt;/p&gt;

&lt;p&gt;On an idle replica set, read latencies can be observed in the 5000ms range due to replication timeout.&lt;/p&gt;

&lt;p&gt;This is confusing for anyone observing these metrics and they may believe there is a performance problem, solely based on these artifacts. When a steady write load is applied, these metrics even out.&lt;/p&gt;

&lt;p&gt;Splitting oplog latencies out from this metric would prevent this confusion, but still allow diagnosis of replication issues.&lt;/p&gt;</description>
                <environment></environment>
        <key id="544199">SERVER-34998</key>
            <summary>Ignore oplog timeout in serverStatus opLatencies</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="kevin.arhelger@mongodb.com">Kevin Arhelger</reporter>
                        <labels>
                    </labels>
                <created>Tue, 15 May 2018 17:11:06 +0000</created>
                <updated>Wed, 13 Jun 2018 16:05:11 +0000</updated>
                            <resolved>Tue, 5 Jun 2018 15:46:35 +0000</resolved>
                                    <version>3.4.15</version>
                                                    <component>Diagnostics</component>
                    <component>Querying</component>
                                        <votes>3</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="1911223" author="david.storch" created="Tue, 5 Jun 2018 15:45:59 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kevin.arhelger&quot; class=&quot;user-hover&quot; rel=&quot;kevin.arhelger&quot;&gt;kevin.arhelger&lt;/a&gt;, excluding time spent blocking for awaitData from various debug output, including &lt;tt&gt;db.serverStatus().opLatencies&lt;/tt&gt; was implemented in&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29304&quot; title=&quot;Exclude time spent blocking for awaitData from latency metrics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29304&quot;&gt;&lt;del&gt;SERVER-29304&lt;/del&gt;&lt;/a&gt; for version 3.5.9. I see that this ticket is marked with an &quot;Affects Version&quot; of both&#160;3.6.4 and&#160;3.7.9. Have you tested to confirm that 3.6.x and 3.7.x exhibit the behavior described by this ticket?&lt;/p&gt;

&lt;p&gt;I&apos;m closing this ticket as a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29304&quot; title=&quot;Exclude time spent blocking for awaitData from latency metrics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29304&quot;&gt;&lt;del&gt;SERVER-29304&lt;/del&gt;&lt;/a&gt;. If there is some defect in the behavior implemented in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29304&quot; title=&quot;Exclude time spent blocking for awaitData from latency metrics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29304&quot;&gt;&lt;del&gt;SERVER-29304&lt;/del&gt;&lt;/a&gt;, or you would like to request additional functionality beyond what was implemented in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29304&quot; title=&quot;Exclude time spent blocking for awaitData from latency metrics&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29304&quot;&gt;&lt;del&gt;SERVER-29304&lt;/del&gt;&lt;/a&gt;, feel free to re-open.&lt;/p&gt;</comment>
                            <comment id="1892143" author="bruce.lucas@10gen.com" created="Tue, 15 May 2018 20:01:19 +0000"  >&lt;p&gt;I don&apos;t recall seeing these logged as slow operations in mongod log. I wonder why they show up in opLatencies and not the log? In any case agreed these aren&apos;t really op latencies.&lt;/p&gt;</comment>
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