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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-49528] retrieve resumable index build information before stopping index builds for rollback</title>
                <link>https://jira.mongodb.org/browse/SERVER-49528</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;At the beginning of the rollback process, the server stops all in-progess index builds. This is done in both rollback algorithms - &lt;a href=&quot;https://github.com/mongodb/mongo/blob/29f80326b16136e36d4f9eb1054d801409abff18/src/mongo/db/repl/rollback_impl.cpp#L347&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Recover to a Timestamp&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/29f80326b16136e36d4f9eb1054d801409abff18/src/mongo/db/repl/rs_rollback.cpp#L2086&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;rollbackViaRefetch&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;In order to resume an index build without restarting the index build from the beginning, the &lt;tt&gt;Recover to a Timestamp&lt;/tt&gt; algorithm needs additional information from the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/29f80326b16136e36d4f9eb1054d801409abff18/src/mongo/db/index_builds_coordinator.cpp#L1288&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;IndexBuildsCoordinator&lt;/a&gt; on the current state of each in-progress index build. This information will be the same information as what is currently written to disk on a clean shutdown for index builds.&lt;/p&gt;

&lt;p&gt;The &lt;tt&gt;Recover to a Timestamp&lt;/tt&gt; rollback algorithm should be able to report the state of each interrupted index build before it starts the actual rollback process. We will use this information to change how rollbacks work for interrupted index builds in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48419&quot; title=&quot;Extend rollback to recover resumable index builds efficiently&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48419&quot;&gt;&lt;del&gt;SERVER-48419&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1410874">SERVER-49528</key>
            <summary>retrieve resumable index build information before stopping index builds for rollback</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                    </labels>
                <created>Wed, 15 Jul 2020 16:31:46 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:46 +0000</updated>
                            <resolved>Thu, 6 Aug 2020 16:37:46 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="3324871" author="xgen-internal-githook" created="Thu, 6 Aug 2020 16:36:13 +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-49528&quot; title=&quot;retrieve resumable index build information before stopping index builds for rollback&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49528&quot;&gt;&lt;del&gt;SERVER-49528&lt;/del&gt;&lt;/a&gt; Retrieve resumable index build information before stopping index builds for rollback&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6522e78360de316c46700bc51f34d3bf0b551e34&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6522e78360de316c46700bc51f34d3bf0b551e34&lt;/a&gt;&lt;/p&gt;</comment>
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