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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-54666] Use earlier oplog entry if recovery timestamp cannot be found in oplog</title>
                <link>https://jira.mongodb.org/browse/SERVER-54666</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During recovery, we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d3681fd24e039baf75d946e01b5d485cefb956aa/src/mongo/db/repl/replication_recovery.cpp#L163-L173&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;assume that the oplogApplicationStartPoint exists in the oplog&lt;/a&gt;. &lt;/p&gt;

&lt;p&gt;The oplogApplicationStartPoint derives from the stable timestamp, which is not guaranteed to be in the oplog. If the stable timestamp was greater than the oplogTruncateAfterPoint, then we &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d3681fd24e039baf75d946e01b5d485cefb956aa/src/mongo/db/repl/replication_recovery.cpp#L700-L727&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;move this point back to the truncate after point&lt;/a&gt;, which is guaranteed to be in the oplog. However, if the stable timestamp is less than the oplogTruncateAfterPoint, we don&apos;t do anything to fix the oplogApplicationStartPoint.&lt;/p&gt;

&lt;p&gt;Because of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-51158&quot; title=&quot;Must not truncate entire oplog before truncate point&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-51158&quot;&gt;&lt;del&gt;SERVER-51158&lt;/del&gt;&lt;/a&gt;, we guarantee that an oplog entry less than or equal to the stable timestamp exists in the oplog, so we should move the oplogApplicationStartPoint back to that oplog entry.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1628820">SERVER-54666</key>
            <summary>Use earlier oplog entry if recovery timestamp cannot be found in oplog</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="13201">Fixed</resolution>
                                        <assignee username="vesselina.ratcheva@mongodb.com">Vesselina Ratcheva</assignee>
                                    <reporter username="samy.lanka@mongodb.com">Samyukta Lanka</reporter>
                        <labels>
                            <label>post-rc0</label>
                    </labels>
                <created>Fri, 19 Feb 2021 20:49:40 +0000</created>
                <updated>Sun, 29 Oct 2023 21:57:15 +0000</updated>
                            <resolved>Wed, 9 Jun 2021 05:58:56 +0000</resolved>
                                                    <fixVersion>5.0.0-rc2</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4108210" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 19:00:15 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3874533" author="xgen-internal-githook" created="Sat, 12 Jun 2021 03:28:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Vesselina Ratcheva&apos;, &apos;email&apos;: &apos;vesselina.ratcheva@10gen.com&apos;, &apos;username&apos;: &apos;vessy-mongodb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54666&quot; title=&quot;Use earlier oplog entry if recovery timestamp cannot be found in oplog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54666&quot;&gt;&lt;del&gt;SERVER-54666&lt;/del&gt;&lt;/a&gt; Use earlier oplog entry if recovery timestamp cannot be found in oplog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 8f2183cc0f064b477e90c903701815369a867807)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a7916f97f70735d889de98582b5107008953e0eb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a7916f97f70735d889de98582b5107008953e0eb&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3867598" author="xgen-internal-githook" created="Tue, 8 Jun 2021 22:19:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Vesselina Ratcheva&apos;, &apos;email&apos;: &apos;vesselina.ratcheva@10gen.com&apos;, &apos;username&apos;: &apos;vessy-mongodb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54666&quot; title=&quot;Use earlier oplog entry if recovery timestamp cannot be found in oplog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54666&quot;&gt;&lt;del&gt;SERVER-54666&lt;/del&gt;&lt;/a&gt; Use earlier oplog entry if recovery timestamp cannot be found in oplog&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8f2183cc0f064b477e90c903701815369a867807&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8f2183cc0f064b477e90c903701815369a867807&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1480171">SERVER-51049</issuekey>
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