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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-16706] Prevent_logOpRS from pushing primary&apos;s last optime back in time in doc-locking storage engines</title>
                <link>https://jira.mongodb.org/browse/SERVER-16706</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In storage engines that do not exclusively lock the oplog collection for the duration of a logop() operation, there is a race condition between the generation of a write&apos;s optime and recording the most recently accepted optime for the primary node via a call to ReplicationCoordiantor::setMyLastOptime().&lt;/p&gt;

&lt;p&gt;Because all failures of logOpRS are fatal, it suffices to update the coordinator&apos;s view of the most recent optime when the optime is generated.  An alternative solution that might be more correct would be to force the storage engine to update the coordinator&apos;s view of the optime when the oplog entries for the new optimes become visible.  This approach may be necessary if we wish to make logOpRS failures recoverable.&lt;/p&gt;</description>
                <environment></environment>
        <key id="176710">SERVER-16706</key>
            <summary>Prevent_logOpRS from pushing primary&apos;s last optime back in time in doc-locking storage engines</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="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="9">Done</resolution>
                                        <assignee username="schwerin@mongodb.com">Andy Schwerin</assignee>
                                    <reporter username="schwerin@mongodb.com">Andy Schwerin</reporter>
                        <labels>
                    </labels>
                <created>Fri, 2 Jan 2015 18:29:38 +0000</created>
                <updated>Thu, 15 Jan 2015 16:46:39 +0000</updated>
                            <resolved>Wed, 7 Jan 2015 22:38:40 +0000</resolved>
                                    <version>2.8.0-rc4</version>
                                    <fixVersion>2.8.0-rc5</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="799613" author="xgen-internal-githook" created="Wed, 7 Jan 2015 22:37:43 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;andy10gen&apos;, u&apos;name&apos;: u&apos;Andy Schwerin&apos;, u&apos;email&apos;: u&apos;schwerin@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16706&quot; title=&quot;Prevent_logOpRS from pushing primary&amp;#39;s last optime back in time in doc-locking storage engines&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16706&quot;&gt;&lt;del&gt;SERVER-16706&lt;/del&gt;&lt;/a&gt; On primary, call setMyLastOptime when generating the new optime, to avoid data race.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e7922c24c8ac4ccfc65a005159197225fea1771e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e7922c24c8ac4ccfc65a005159197225fea1771e&lt;/a&gt;&lt;/p&gt;</comment>
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