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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-49284] Biggie oplog visibility is not correct</title>
                <link>https://jira.mongodb.org/browse/SERVER-49284</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;New uncommited inserts on the oplog happen with RecordIds that are lower than the currently known lowest uncommitted insert.&lt;/p&gt;

&lt;p&gt;This leads to cursors on the oplog throwing CappedPositionLost when entries that they previously saw become hidden.&lt;/p&gt;

&lt;p&gt;This makes replication broken on the Biggie storage engine. &lt;/p&gt;</description>
                <environment></environment>
        <key id="1399922">SERVER-49284</key>
            <summary>Biggie oplog visibility is not correct</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="henrik.edin@mongodb.com">Henrik Edin</assignee>
                                    <reporter username="henrik.edin@mongodb.com">Henrik Edin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 2 Jul 2020 13:00:02 +0000</created>
                <updated>Sun, 29 Oct 2023 22:06:10 +0000</updated>
                            <resolved>Mon, 13 Jul 2020 21:48:36 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3283362" author="xgen-internal-githook" created="Mon, 13 Jul 2020 20:27:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Henrik Edin&apos;, &apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49284&quot; title=&quot;Biggie oplog visibility is not correct&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49284&quot;&gt;&lt;del&gt;SERVER-49284&lt;/del&gt;&lt;/a&gt; Fix oplog visibility and replication for Biggie&lt;/p&gt;

&lt;p&gt;Implement oplogDiskLocRegister for Biggie so we can reserve oplog holes for unordered commits.&lt;br/&gt;
Cursors on the oplog caches oplog visibility at the time they fork the radix tree&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ae9fcd9196a8d6ca1db52a6618de51427a6669b8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ae9fcd9196a8d6ca1db52a6618de51427a6669b8&lt;/a&gt;&lt;/p&gt;</comment>
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