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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-39451] Add recover to a stable timestamp logic for startIndexBuild, abortIndexBuild, commitIndexBuild</title>
                <link>https://jira.mongodb.org/browse/SERVER-39451</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Before entering rollback, &lt;a href=&quot;https://github.com/mongodb/mongo/blob/6abbac58cc5b5f4b66b50ada20e70fdf96301571/src/mongo/db/repl/bgsync.cpp#L635&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;we abort all active index builds&lt;/a&gt;. After rolling back, we should add logic to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/c046a5896652acea84c9db1d9346a43b2745a37b/src/mongo/db/storage/storage_engine_impl.cpp#L324&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;reconcileCatalogAndIdents()&lt;/a&gt; to restart all unfinished two-phase builds.&lt;/p&gt;</description>
                <environment></environment>
        <key id="685965">SERVER-39451</key>
            <summary>Add recover to a stable timestamp logic for startIndexBuild, abortIndexBuild, commitIndexBuild</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="louis.williams@mongodb.com">Louis Williams</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Fri, 8 Feb 2019 14:20:32 +0000</created>
                <updated>Sun, 29 Oct 2023 22:24:18 +0000</updated>
                            <resolved>Thu, 14 Nov 2019 16:27:40 +0000</resolved>
                                                    <fixVersion>4.3.2</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2540998" author="xgen-internal-githook" created="Thu, 14 Nov 2019 17:00:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;username&apos;: &apos;louiswilliams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39451&quot; title=&quot;Add recover to a stable timestamp logic for startIndexBuild, abortIndexBuild, commitIndexBuild&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39451&quot;&gt;&lt;del&gt;SERVER-39451&lt;/del&gt;&lt;/a&gt; Un-blacklist index build rollback tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/208460151d55b345ba9db253912494a8108c9949&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/208460151d55b345ba9db253912494a8108c9949&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2540042" author="xgen-internal-githook" created="Thu, 14 Nov 2019 00:40:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;username&apos;: &apos;louiswilliams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39451&quot; title=&quot;Add recover to a stable timestamp logic for startIndexBuild, abortIndexBuild, commitIndexBuild&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39451&quot;&gt;&lt;del&gt;SERVER-39451&lt;/del&gt;&lt;/a&gt; Support recover-to-stable rollback for two-phase index builds&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/103318868c860e441050652b6dae137d0d21d593&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/103318868c860e441050652b6dae137d0d21d593&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2512888" author="louis.williams" created="Thu, 31 Oct 2019 17:18:48 +0000"  >&lt;p&gt;Some observations after working through this:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Before rollback, in-progress index builds are aborted. We need a way to restart unfinished two-phase index builds after rollback. This logic will likely need to go into the catalog startup path, where we currently have &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d0c867a988d24964e2235d3d755a50d618e87898/src/mongo/db/storage/storage_engine_impl.cpp&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;reconileCatalogAndIdents&lt;/a&gt;. This requires:
	&lt;ul&gt;
		&lt;li&gt;Threading the IndexBuildProtocol from &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd7aaa92a2e3309980689e99125eead70e7c0317/src/mongo/db/index_builds_coordinator.cpp#L881&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;IndexBuildsCoordinator&lt;/a&gt; to the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/fd7aaa92a2e3309980689e99125eead70e7c0317/src/mongo/db/catalog/index_build_block.cpp#L96&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;IndexBuildBlock::init()&lt;/a&gt;&lt;/li&gt;
		&lt;li&gt;Persisting the build UUID information into the catalog. An alternative is processing each rolled-back operation and maintaining a list of index builds to rebuild after rollback.&#160;The simplicity of a solution that is implemented in the catalog layer means that it will work for rollback and for startup recovery.&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;
</comment>
                    </comments>
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                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="686514">SERVER-39484</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="987032">SERVER-44350</issuekey>
        </issuelink>
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                                        <issuelink>
            <issuekey id="943441">SERVER-43692</issuekey>
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                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="688679">SERVER-39559</issuekey>
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                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="674273">SERVER-39069</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="890930">SERVER-42762</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1002639">SERVER-44633</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1362808">SERVER-48419</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="971168">SERVER-44045</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="977946">SERVER-44186</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="685966">SERVER-39452</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="992093">SERVER-44467</issuekey>
        </issuelink>
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