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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-49507] Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records</title>
                <link>https://jira.mongodb.org/browse/SERVER-49507</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, dumpInsertsFromBulk populates a set of RecordIds (in memory) which contain duplicate unique keys.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;The duplicate record ids are iterated through, moved to a lost_and_found collection and deleted.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1409306">SERVER-49507</key>
            <summary>Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records</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="fausto.leyva@mongodb.com">Fausto Leyva</assignee>
                                    <reporter username="fausto.leyva@mongodb.com">Fausto Leyva</reporter>
                        <labels>
                            <label>KP44</label>
                    </labels>
                <created>Tue, 14 Jul 2020 21:27:45 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:49 +0000</updated>
                            <resolved>Wed, 5 Aug 2020 17:39:49 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                    <fixVersion>4.4.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="3435179" author="xgen-internal-githook" created="Thu, 8 Oct 2020 18:53:37 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Faustoleyva54&apos;, &apos;email&apos;: &apos;fausto.leyva@mongodb.com&apos;, &apos;username&apos;: &apos;Faustoleyva54&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39562&quot; title=&quot;Repair should handle duplicate unique index keys&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39562&quot;&gt;&lt;del&gt;SERVER-39562&lt;/del&gt;&lt;/a&gt; Repair should handle duplicate unique index keys&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 80f11e6ae0708e8c8da49208ef2cf71cdd06877c)&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49507&quot; title=&quot;Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49507&quot;&gt;&lt;del&gt;SERVER-49507&lt;/del&gt;&lt;/a&gt; Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records&lt;/p&gt;

&lt;p&gt;(cherry picked from commit e25d43ca2b5e99e6484cb0e13ca5f9e2d014ac30)&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/69b7023414b5a1160de0f0e4a068e4bd8ff288e9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/69b7023414b5a1160de0f0e4a068e4bd8ff288e9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3323139" author="xgen-internal-githook" created="Wed, 5 Aug 2020 17:34:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Faustoleyva54&apos;, &apos;email&apos;: &apos;fausto.leyva@mongodb.com&apos;, &apos;username&apos;: &apos;Faustoleyva54&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49507&quot; title=&quot;Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49507&quot;&gt;&lt;del&gt;SERVER-49507&lt;/del&gt;&lt;/a&gt; Reduce memory consumption in startup repair when rebuilding unique indexes with a large number of duplicate records&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e25d43ca2b5e99e6484cb0e13ca5f9e2d014ac30&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e25d43ca2b5e99e6484cb0e13ca5f9e2d014ac30&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3313164" author="JIRAUSER1253362" created="Thu, 30 Jul 2020 00:43:38 +0000"  >&lt;p&gt;&lt;a href=&quot;https://mongodbcr.appspot.com/636730001/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://mongodbcr.appspot.com/636730001/&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3288081" author="louis.williams" created="Thu, 16 Jul 2020 15:01:53 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=bruce.lucas&quot; class=&quot;user-hover&quot; rel=&quot;bruce.lucas&quot;&gt;bruce.lucas&lt;/a&gt;, yes this is a follow-up to work that has yet to be committed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39562&quot; title=&quot;Repair should handle duplicate unique index keys&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39562&quot;&gt;&lt;del&gt;SERVER-39562&lt;/del&gt;&lt;/a&gt;. It is a similar problem, but the hope is that &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48067&quot; title=&quot;Reduce memory consumption for unique index builds with large numbers of non-unique keys&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48067&quot;&gt;&lt;del&gt;SERVER-48067&lt;/del&gt;&lt;/a&gt; will make this easier to solve.&lt;/p&gt;</comment>
                            <comment id="3288030" author="bruce.lucas@10gen.com" created="Thu, 16 Jul 2020 14:44:02 +0000"  >&lt;p&gt;Is this different from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48067&quot; title=&quot;Reduce memory consumption for unique index builds with large numbers of non-unique keys&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48067&quot;&gt;&lt;del&gt;SERVER-48067&lt;/del&gt;&lt;/a&gt;?&lt;/p&gt;</comment>
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            <issuekey id="1513973">SERVER-51593</issuekey>
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