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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-48722] CollectionCriticalSection should wait for an eventual shard version recovery to finish</title>
                <link>https://jira.mongodb.org/browse/SERVER-48722</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A thread&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/33d4a16dec74c49d05eefacf2d965fab23073195/src/mongo/db/s/collection_sharding_runtime.cpp#L457&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;entering the critical section&lt;/a&gt; should make sure that there is no ongoing shard version recovery.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1378457">SERVER-48722</key>
            <summary>CollectionCriticalSection should wait for an eventual shard version recovery to finish</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="3">Duplicate</resolution>
                                        <assignee username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</assignee>
                                    <reporter username="pierlauro.sciarelli@mongodb.com">Pierlauro Sciarelli</reporter>
                        <labels>
                            <label>PM-1645-Milestone-1</label>
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                <created>Thu, 11 Jun 2020 15:19:36 +0000</created>
                <updated>Tue, 16 Jun 2020 14:01:43 +0000</updated>
                            <resolved>Tue, 16 Jun 2020 14:01:43 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3207898" author="pierlauro.sciarelli" created="Mon, 15 Jun 2020 13:59:02 +0000"  >&lt;p&gt;Repurposed in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48722&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-48722&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3207889" author="pierlauro.sciarelli" created="Mon, 15 Jun 2020 13:53:34 +0000"  >&lt;p&gt;&amp;#8212; EDIT repurposing the issue after discussing with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kaloian.manassiev&quot; class=&quot;user-hover&quot; rel=&quot;kaloian.manassiev&quot;&gt;kaloian.manassiev&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;It is not needed for &lt;b&gt;CollectionCriticalSection&lt;/b&gt; to wait for a recovery because it is actually not needed for critical section to be entered when performing a recovery in &lt;b&gt;onShardVersionMismatch&lt;/b&gt;.&lt;/p&gt;

&lt;p&gt;Reason: if a recovery is performed while a &lt;b&gt;moveChunk&lt;/b&gt; is ongoing, the recovered version is still good for the incoming operations relying on the &quot;soon-to-be-outdated&quot; shard version.&lt;/p&gt;</comment>
                            <comment id="3205305" author="pierlauro.sciarelli" created="Thu, 11 Jun 2020 15:33:58 +0000"  >&lt;p&gt;It&apos;s a &lt;b&gt;moveChunk&lt;/b&gt;, I am looking into it and I will probably repurpose the issue as the &lt;b&gt;CollectionCriticalSection&lt;/b&gt; caller should probably take care of checking/waiting for recover/refreshes&lt;/p&gt;</comment>
                            <comment id="3205271" author="kaloian.manassiev" created="Thu, 11 Jun 2020 15:22:23 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=pierlauro.sciarelli&quot; class=&quot;user-hover&quot; rel=&quot;pierlauro.sciarelli&quot;&gt;pierlauro.sciarelli&lt;/a&gt;, what is the activity, which enters the critical section while there is ongoing refresh?&lt;/p&gt;</comment>
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            <issuekey id="1380557">SERVER-48783</issuekey>
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