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    <title>MongoDB Jira</title>
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    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-22717] Sudden (huge) spike in Oplog GB/hour on primary member</title>
                <link>https://jira.mongodb.org/browse/SERVER-22717</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Sudden (huge) spike in Oplog GB/hour on primary member rendered secondaries in &quot;RECOVERY&quot; state. There was no spike in Opcounters, so no idea what went wrong there. Since it&apos;s a production db, I wasn&apos;t able to wait to collect more information about the issue.&lt;/p&gt;

&lt;p&gt;I have added the relevant MMS graphs. Notice the &quot;Oplog GB/hour&quot;. First one is primary member, others are secondaries - all running v3.0.9 WiredTiger.&lt;/p&gt;</description>
                <environment>Amazon Linux</environment>
        <key id="266372">SERVER-22717</key>
            <summary>Sudden (huge) spike in Oplog GB/hour on primary member</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="-1">Unassigned</assignee>
                                    <reporter username="amanpreet@codigami.com">Amanpreet Singh</reporter>
                        <labels>
                    </labels>
                <created>Thu, 18 Feb 2016 07:15:50 +0000</created>
                <updated>Thu, 18 Feb 2016 14:55:40 +0000</updated>
                            <resolved>Thu, 18 Feb 2016 14:55:40 +0000</resolved>
                                    <version>3.0.9</version>
                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1177309" author="ramon.fernandez" created="Thu, 18 Feb 2016 14:54:51 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=amanpreet%40codigami.com&quot; class=&quot;user-hover&quot; rel=&quot;amanpreet@codigami.com&quot;&gt;amanpreet@codigami.com&lt;/a&gt;, sorry this happened in your production environment, and I understand your not waiting to collect further information. &lt;/p&gt;

&lt;p&gt;Looks like you may be hitting &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22634&quot; title=&quot;Data size change for oplog deletes can overflow 32-bit int&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22634&quot;&gt;&lt;del&gt;SERVER-22634&lt;/del&gt;&lt;/a&gt;, which hasn&apos;t yet ben fixed in a 3.0 release unfortunately. As noted in that ticket MongoDB 3.2 is not impacted, so if this is a critical issue for you you may want to consider upgrading to MongoDB 3.2.3 (released yesterday).&lt;/p&gt;

&lt;p&gt;Please note that without the ability to troubleshoot this in more detail there may not be much more we can do and this ticket will be closed. However the symptoms you describe correlate with those observed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22634&quot; title=&quot;Data size change for oplog deletes can overflow 32-bit int&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22634&quot;&gt;&lt;del&gt;SERVER-22634&lt;/del&gt;&lt;/a&gt;, so I&apos;m tentatively marking this ticket as a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22634&quot; title=&quot;Data size change for oplog deletes can overflow 32-bit int&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22634&quot;&gt;&lt;del&gt;SERVER-22634&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;
</comment>
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                            <attachment id="109564" name="mms.png" size="471093" author="amanpreet@codigami.com" created="Thu, 18 Feb 2016 07:15:50 +0000"/>
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