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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-54791] Excessive file descriptor usage during index build with external sort</title>
                <link>https://jira.mongodb.org/browse/SERVER-54791</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During the index build phase with the external sort, file descriptor usage can be in thousands or even tens of thousands. This might be problematic for workloads that already consume a significant number of file descriptors or OS&apos;s where increasing the equivalent to file descriptors might be a problem.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1633611">SERVER-54791</key>
            <summary>Excessive file descriptor usage during index build with external sort</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="gregory.noma@mongodb.com">Gregory Noma</assignee>
                                    <reporter username="dmitry.agranat@mongodb.com">Dmitry Agranat</reporter>
                        <labels>
                    </labels>
                <created>Thu, 25 Feb 2021 14:03:51 +0000</created>
                <updated>Sun, 29 Oct 2023 21:57:02 +0000</updated>
                            <resolved>Wed, 28 Jul 2021 17:28:17 +0000</resolved>
                                    <version>4.2.12</version>
                                    <fixVersion>5.0.3</fixVersion>
                    <fixVersion>4.4.10</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                    <component>Index Maintenance</component>
                                        <votes>6</votes>
                                    <watches>17</watches>
                                                                                                                <comments>
                            <comment id="4080688" author="xgen-internal-githook" created="Thu, 23 Sep 2021 14:56:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54791&quot; title=&quot;Excessive file descriptor usage during index build with external sort&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54791&quot;&gt;&lt;del&gt;SERVER-54791&lt;/del&gt;&lt;/a&gt; Use single file descriptor for external sort&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a9efdaf12d5f8a2c9ba9610d21fafdd0eeb8551e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a9efdaf12d5f8a2c9ba9610d21fafdd0eeb8551e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3981583" author="xgen-internal-githook" created="Wed, 4 Aug 2021 20:23:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54791&quot; title=&quot;Excessive file descriptor usage during index build with external sort&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54791&quot;&gt;&lt;del&gt;SERVER-54791&lt;/del&gt;&lt;/a&gt; Use single file descriptor for external sort&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 6e57f295d4fcf932f58cb402a056001c75fde9d2)&lt;br/&gt;
(cherry picked from commit 311b84df538a5ee9ab4db507f610d8b814bb2099)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/62e0f0c801e85d8938ec8548b624556d6f05e1fc&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/62e0f0c801e85d8938ec8548b624556d6f05e1fc&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3968668" author="xgen-internal-githook" created="Wed, 28 Jul 2021 17:27:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54791&quot; title=&quot;Excessive file descriptor usage during index build with external sort&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54791&quot;&gt;&lt;del&gt;SERVER-54791&lt;/del&gt;&lt;/a&gt; Fix `Sorter::File` cleanup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/311b84df538a5ee9ab4db507f610d8b814bb2099&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/311b84df538a5ee9ab4db507f610d8b814bb2099&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3967966" author="xgen-internal-githook" created="Wed, 28 Jul 2021 14:10:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54791&quot; title=&quot;Excessive file descriptor usage during index build with external sort&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54791&quot;&gt;&lt;del&gt;SERVER-54791&lt;/del&gt;&lt;/a&gt; Use single file descriptor for external sort&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6e57f295d4fcf932f58cb402a056001c75fde9d2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6e57f295d4fcf932f58cb402a056001c75fde9d2&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1039935">SERVER-44984</issuekey>
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