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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-50256] Oplog applier InsertGroup cannot group first operation in vector </title>
                <link>https://jira.mongodb.org/browse/SERVER-50256</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The InsertGroup will not group operations starting with (and including) its _doNotGroupBeforePoint iterator, which is set to the last operation grouped in the last attempt, or the start of its operation vector.  This means it can never group the first operation in the operation vector.  Since there is no &quot;before the beginning&quot; iterator in C++, probably the solution is to make _doNotGroupBeforePoint the first operation not yet grouped, and make InsertGroup not group operations strictly before _doNotGroupBeforePoint.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1438301">SERVER-50256</key>
            <summary>Oplog applier InsertGroup cannot group first operation in vector </summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="scott.li@mongodb.com">Scott Li</assignee>
                                    <reporter username="matthew.russotto@mongodb.com">Matthew Russotto</reporter>
                        <labels>
                            <label>neweng</label>
                    </labels>
                <created>Tue, 11 Aug 2020 17:39:12 +0000</created>
                <updated>Wed, 8 Nov 2023 18:50:21 +0000</updated>
                            <resolved>Wed, 8 Nov 2023 18:50:21 +0000</resolved>
                                                    <fixVersion>7.2.0-rc0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="5859469" author="xgen-internal-githook" created="Tue, 7 Nov 2023 03:11:49 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Scott Li&apos;, &apos;email&apos;: &apos;scott.li@mongodb.com&apos;, &apos;username&apos;: &apos;&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50256&quot; title=&quot;Oplog applier InsertGroup cannot group first operation in vector &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50256&quot;&gt;&lt;del&gt;SERVER-50256&lt;/del&gt;&lt;/a&gt; Fix the off by 1 inefficiency in insertGroup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4376038d6f6ac23df93f7a491fe5c0ea115b7c53&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4376038d6f6ac23df93f7a491fe5c0ea115b7c53&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3334673" author="judah.schvimer" created="Wed, 12 Aug 2020 15:16:48 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=matthew.russotto&quot; class=&quot;user-hover&quot; rel=&quot;matthew.russotto&quot;&gt;matthew.russotto&lt;/a&gt;, is this a correctness bug, or just a performance improvement?&lt;/p&gt;</comment>
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