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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>
    </build-info>


<item>
            <title>[SERVER-42799] obtain timestamp for cleaning up index build without noop write</title>
                <link>https://jira.mongodb.org/browse/SERVER-42799</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42185&quot; title=&quot;cleanUpAfterBuild can be called after the node steps down to secondary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42185&quot;&gt;&lt;del&gt;SERVER-42185&lt;/del&gt;&lt;/a&gt;, index build cancellations may be timestamped in one of two ways:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;noop write to oplog. &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-34172&quot; title=&quot;Turn primary index build ghost writes into noop oplog writes.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-34172&quot;&gt;&lt;del&gt;SERVER-34172&lt;/del&gt;&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;ghost timestamp. &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42185&quot; title=&quot;cleanUpAfterBuild can be called after the node steps down to secondary&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42185&quot;&gt;&lt;del&gt;SERVER-42185&lt;/del&gt;&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;We should consider converging on using ghost timestamps for cancellations.&lt;/p&gt;

&lt;p&gt;Additionally, we may tweak index build cleanup to release the RSTL lock in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42621&quot; title=&quot;3 way deadlock can happen between hybrid index build, prepared transactions and stepdown thread.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42621&quot;&gt;&lt;del&gt;SERVER-42621&lt;/del&gt;&lt;/a&gt;. This makes the first method (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-34172&quot; title=&quot;Turn primary index build ghost writes into noop oplog writes.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-34172&quot;&gt;&lt;del&gt;SERVER-34172&lt;/del&gt;&lt;/a&gt;) redundant.&lt;/p&gt;</description>
                <environment></environment>
        <key id="893076">SERVER-42799</key>
            <summary>obtain timestamp for cleaning up index build without noop write</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                    </labels>
                <created>Tue, 13 Aug 2019 18:08:07 +0000</created>
                <updated>Sun, 29 Oct 2023 22:18:06 +0000</updated>
                            <resolved>Thu, 22 Aug 2019 16:59:59 +0000</resolved>
                                                    <fixVersion>4.2.1</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="2392282" author="xgen-internal-githook" created="Wed, 28 Aug 2019 00:16:36 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;name&apos;: &apos;Benety Goh&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42799&quot; title=&quot;obtain timestamp for cleaning up index build without noop write&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42799&quot;&gt;&lt;del&gt;SERVER-42799&lt;/del&gt;&lt;/a&gt; obtain timestamp for cleaning up index build without noop write&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 283e8966d1b24559963c460591b1cb845e4c6f9a)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bf41d49a77695d50479aa37902a4e622a01bc37f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bf41d49a77695d50479aa37902a4e622a01bc37f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2382985" author="xgen-internal-githook" created="Thu, 22 Aug 2019 16:59:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42799&quot; title=&quot;obtain timestamp for cleaning up index build without noop write&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42799&quot;&gt;&lt;del&gt;SERVER-42799&lt;/del&gt;&lt;/a&gt; obtain timestamp for cleaning up index build without noop write&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/283e8966d1b24559963c460591b1cb845e4c6f9a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/283e8966d1b24559963c460591b1cb845e4c6f9a&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="518219">SERVER-34172</issuekey>
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