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    <title>MongoDB Jira</title>
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    <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-14805] Use multithreaded oplog replay during initial sync</title>
                <link>https://jira.mongodb.org/browse/SERVER-14805</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Before 2.6.3 initial sync application is single-threaded, while our regular oplog replication is multi-threaded. This improvement request is for initial sync to work that same way.&lt;/p&gt;

&lt;p&gt;It may (significantly) speed up the initial sync process for deployments with multiple active collections or databases to change the oplog application process.&lt;/p&gt;

</description>
                <environment></environment>
        <key id="151145">SERVER-14805</key>
            <summary>Use multithreaded oplog replay during initial sync</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="9">Done</resolution>
                                        <assignee username="scotthernandez">Scott Hernandez</assignee>
                                    <reporter username="alex.komyagin@mongodb.com">Alexander Komyagin</reporter>
                        <labels>
                    </labels>
                <created>Wed, 6 Aug 2014 19:05:45 +0000</created>
                <updated>Thu, 25 Jun 2015 18:23:32 +0000</updated>
                            <resolved>Fri, 5 Sep 2014 20:57:53 +0000</resolved>
                                    <version>2.6.3</version>
                                    <fixVersion>2.6.5</fixVersion>
                    <fixVersion>2.7.7</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>12</watches>
                                                                                                                <comments>
                            <comment id="712852" author="xgen-internal-githook" created="Fri, 5 Sep 2014 21:48:17 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;scotthernandez&apos;, u&apos;name&apos;: u&apos;Scott Hernandez&apos;, u&apos;email&apos;: u&apos;scotthernandez@gmail.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14805&quot; title=&quot;Use multithreaded oplog replay during initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14805&quot;&gt;&lt;del&gt;SERVER-14805&lt;/del&gt;&lt;/a&gt;: fix fassert numbers&lt;br/&gt;
Branch: v2.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/94411d9551465cd215e20960f99825d0a34e0ea8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/94411d9551465cd215e20960f99825d0a34e0ea8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="712800" author="xgen-internal-githook" created="Fri, 5 Sep 2014 20:57:05 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;scotthernandez&apos;, u&apos;name&apos;: u&apos;Scott Hernandez&apos;, u&apos;email&apos;: u&apos;scotthernandez@gmail.com&apos;}
&lt;p&gt;Message:  &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14805&quot; title=&quot;Use multithreaded oplog replay during initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14805&quot;&gt;&lt;del&gt;SERVER-14805&lt;/del&gt;&lt;/a&gt;: initialsync multithreaded oplog apply&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/823486e53a8160d20de06403228bb2c71fb127e1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/823486e53a8160d20de06403228bb2c71fb127e1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="711969" author="xgen-internal-githook" created="Thu, 4 Sep 2014 22:18:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;scotthernandez&apos;, u&apos;name&apos;: u&apos;Scott Hernandez&apos;, u&apos;email&apos;: u&apos;scotthernandez@gmail.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14805&quot; title=&quot;Use multithreaded oplog replay during initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14805&quot;&gt;&lt;del&gt;SERVER-14805&lt;/del&gt;&lt;/a&gt;: initialsync multithreaded oplog apply&lt;br/&gt;
Branch: v2.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/dbf18450b53d4ee1df99c701120567219608adc0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/dbf18450b53d4ee1df99c701120567219608adc0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="711685" author="milkie" created="Thu, 4 Sep 2014 17:53:02 +0000"  >&lt;p&gt;Plan is to commit directly into 2.6 and then forward port.&lt;br/&gt;
Commit to 2.6 is approved, pending clean MCI patch run.&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="54971">SERVER-7527</issuekey>
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            <issuekey id="89504">SERVER-10751</issuekey>
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