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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-38548] Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase</title>
                <link>https://jira.mongodb.org/browse/SERVER-38548</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Probably need to remove the special rollback logic for recreating the index when a drop is rolled back. Recover to a stable timestamp reverts the __mdb_catalog back to a time when the index catalog entry was present, but a WT table drop cannot be rolled back, so the index is specially recreated during rollback. We will need special logic either to remove pending drop idents from the ident reaper or reset the ident reaper during rollback.&lt;/p&gt;</description>
                <environment></environment>
        <key id="650033">SERVER-38548</key>
            <summary>Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Tue, 11 Dec 2018 20:58:01 +0000</created>
                <updated>Sun, 29 Oct 2023 22:25:51 +0000</updated>
                            <resolved>Tue, 1 Jan 2019 10:59:48 +0000</resolved>
                                                    <fixVersion>4.1.7</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2102733" author="xgen-internal-githook" created="Tue, 1 Jan 2019 10:58:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;benety&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;name&apos;: &apos;Benety Goh&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38548&quot; title=&quot;Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38548&quot;&gt;&lt;del&gt;SERVER-38548&lt;/del&gt;&lt;/a&gt; dropping an index removes catalog entry immediately and defers ident drop&lt;/p&gt;

&lt;p&gt;If drop-pending idents are supported by the storage engine, catalog::openCatalog() will not need&lt;br/&gt;
to rebuild the indexes on rollback/recovery. Instead, the storage engine will manage the removal&lt;br/&gt;
of the idents from disk.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/671f529e1f0a3f6b5701d6ada2331099e7e72f4a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/671f529e1f0a3f6b5701d6ada2331099e7e72f4a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2102684" author="xgen-internal-githook" created="Mon, 31 Dec 2018 23:20:43 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;benety&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;name&apos;: &apos;Benety Goh&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38548&quot; title=&quot;Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38548&quot;&gt;&lt;del&gt;SERVER-38548&lt;/del&gt;&lt;/a&gt; clean up KVCollectionCatalogEntry to support drop-pending idents.&lt;/p&gt;

&lt;p&gt;constructor accepts KVStorageEngineInterface instead of KVEngine&lt;br/&gt;
RemoveIndexChange accepts index namespace and name&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f721066e5e9db5439a2fd2a4de628e0587e36a1a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f721066e5e9db5439a2fd2a4de628e0587e36a1a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2102659" author="xgen-internal-githook" created="Mon, 31 Dec 2018 22:00:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;benety&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;name&apos;: &apos;Benety Goh&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38548&quot; title=&quot;Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38548&quot;&gt;&lt;del&gt;SERVER-38548&lt;/del&gt;&lt;/a&gt; move IndexDescriptor::makeIndexNamespace() to NamespaceString&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7a0d93bae000826c5dc27d261e1a7e348c24a559&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7a0d93bae000826c5dc27d261e1a7e348c24a559&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2102543" author="xgen-internal-githook" created="Mon, 31 Dec 2018 18:27:23 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;benety&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;name&apos;: &apos;Benety Goh&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-38548&quot; title=&quot;Leverage the KVDropPendingIdentReaper and TimestampMonitor to make index drops two-phase&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-38548&quot;&gt;&lt;del&gt;SERVER-38548&lt;/del&gt;&lt;/a&gt; add missing ns field to index specs in kv engine tests&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/63bfdedec32acbfe3279c5b7ebcbdcd00c9ff23d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/63bfdedec32acbfe3279c5b7ebcbdcd00c9ff23d&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="623555">SERVER-37733</issuekey>
        </issuelink>
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                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="623480">SERVER-37730</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="661400">SERVER-38769</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="668212">SERVER-38910</issuekey>
        </issuelink>
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