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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-54919] TenantMigrationRecipientService should not create an OperationContext while holding the mutex</title>
                <link>https://jira.mongodb.org/browse/SERVER-54919</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We would get a deadlock in the TenantMigrationRecipientService in the following case: &lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Thread A is holding the&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/5b66f4557398de0f1bca748133f99ccb6ec409d8/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L1216&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Instance mutex&lt;/a&gt;&#160;and waiting for the&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/5b66f4557398de0f1bca748133f99ccb6ec409d8/src/mongo/db/repl/primary_only_service.cpp#L262&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Service mutex&lt;/a&gt;&#160;in order to register the opCtx that it creates in _onCloneSuccess()&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/5b66f4557398de0f1bca748133f99ccb6ec409d8/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L1223&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;Thread B is holding the&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/5b66f4557398de0f1bca748133f99ccb6ec409d8/src/mongo/db/repl/primary_only_service.cpp#L247&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Service mutex&lt;/a&gt;&#160;and waiting for&#160;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/5b66f4557398de0f1bca748133f99ccb6ec409d8/src/mongo/db/repl/tenant_migration_recipient_service.cpp#L303&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Instance mutex&lt;/a&gt;&#160;in do currentOp reporting.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&#160;&lt;br/&gt;
So we should not create an opCtx while holding the Instance mutex.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1638261">SERVER-54919</key>
            <summary>TenantMigrationRecipientService should not create an OperationContext while holding the mutex</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="lingzhi.deng@mongodb.com">Lingzhi Deng</assignee>
                                    <reporter username="cheahuychou.mao@mongodb.com">Cheahuychou Mao</reporter>
                        <labels>
                            <label>pm-1791_other_required</label>
                    </labels>
                <created>Wed, 3 Mar 2021 17:07:57 +0000</created>
                <updated>Sun, 29 Oct 2023 21:56:47 +0000</updated>
                            <resolved>Mon, 8 Mar 2021 23:07:49 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3653375" author="xgen-internal-githook" created="Mon, 8 Mar 2021 23:01:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Lingzhi Deng&apos;, &apos;email&apos;: &apos;lingzhi.deng@mongodb.com&apos;, &apos;username&apos;: &apos;ldennis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-54919&quot; title=&quot;TenantMigrationRecipientService should not create an OperationContext while holding the mutex&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-54919&quot;&gt;&lt;del&gt;SERVER-54919&lt;/del&gt;&lt;/a&gt;: TenantMigrationRecipientService should not create an OperationContext while holding the instance mutex&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d729c92c37bb1679f03fab1547f6e5b102b8594c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d729c92c37bb1679f03fab1547f6e5b102b8594c&lt;/a&gt;&lt;/p&gt;</comment>
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