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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-48883] Range deletion recovery can invalidate migration recovery on step up</title>
                <link>https://jira.mongodb.org/browse/SERVER-48883</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;On step up we both &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L893&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;recover pending migrations&lt;/a&gt; and &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L894&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resume range deletions&lt;/a&gt;. In particular the following interleaving of the two operations could make the recovery to be skip.&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;On step up a collection with pending migrations &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/s/migration_util.cpp#L841&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;is marked as &quot;needs recovery&quot; by setting its metadata as unknown&lt;/a&gt; and a recovery is triggered by an &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/s/migration_util.cpp#L857&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;asynchronous call to onShardVersionMismatch.&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;On step up in order to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/s/migration_util.cpp#L412&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resume range deletions &lt;/a&gt;we force a &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/s/migration_util.cpp#L331&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;metadata refresh &lt;/a&gt;for the collection with the result of populating its metadata.&lt;/li&gt;
	&lt;li&gt;When onShardVersionMismatch will finally run &lt;a href=&quot;https://github.com/mongodb/mongo/blob/593813559b7c6b5e2c97d132f66b9dd75961ceea/src/mongo/db/s/shard_filtering_metadata_refresh.cpp#L183&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;it fill find that the metadata are known&lt;/a&gt; and it won&apos;t even try to do a migration recovery.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1380942">SERVER-48883</key>
            <summary>Range deletion recovery can invalidate migration recovery on step up</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                            <label>PM-1645-Milestone-1</label>
                            <label>sharding</label>
                    </labels>
                <created>Mon, 15 Jun 2020 17:22:37 +0000</created>
                <updated>Sun, 29 Oct 2023 22:06:56 +0000</updated>
                            <resolved>Fri, 19 Jun 2020 13:54:57 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3215889" author="xgen-internal-githook" created="Fri, 19 Jun 2020 13:48:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Pierlauro Sciarelli&apos;, &apos;email&apos;: &apos;pierlauro.sciarelli@mongodb.com&apos;, &apos;username&apos;: &apos;pierlauro&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48883&quot; title=&quot;Range deletion recovery can invalidate migration recovery on step up&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48883&quot;&gt;&lt;del&gt;SERVER-48883&lt;/del&gt;&lt;/a&gt; Range deletion recovery can invalidate migration recovery on step up&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5ad9593661aacb7cea228c78723e93c61031b67f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5ad9593661aacb7cea228c78723e93c61031b67f&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1341956">SERVER-47985</issuekey>
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