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    <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-43174] Designate the MigrationDestinationManager&apos;s migrateThread as system operation killable</title>
                <link>https://jira.mongodb.org/browse/SERVER-43174</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, the &lt;tt&gt;migrateThread&lt;/tt&gt; is not designated as system operation killable. This means that a stepdown will skip killing the migration, which could lead to a deadlock as seen in the linked BF. The solution is easy &amp;#8211; add &lt;a href=&quot;https://github.com/mongodb/mongo/blob/1d5d6a2fa25ebf81e96052c32425816f6d64d2e1/src/mongo/db/s/metadata_manager.cpp#L143&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this line&lt;/a&gt; as seen with the range deleter to the &lt;tt&gt;migrateThread&lt;/tt&gt; &lt;a href=&quot;https://github.com/mongodb/mongo/blob/1d5d6a2fa25ebf81e96052c32425816f6d64d2e1/src/mongo/db/s/migration_destination_manager.cpp#L693-L694&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;. &lt;/p&gt;</description>
                <environment></environment>
        <key id="917671">SERVER-43174</key>
            <summary>Designate the MigrationDestinationManager&apos;s migrateThread as system operation killable</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="randolph@mongodb.com">Randolph Tan</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                    </labels>
                <created>Thu, 5 Sep 2019 15:15:48 +0000</created>
                <updated>Sun, 29 Oct 2023 22:17:27 +0000</updated>
                            <resolved>Mon, 16 Sep 2019 14:08:24 +0000</resolved>
                                    <version>3.6.14</version>
                    <version>4.0.12</version>
                    <version>4.2.0</version>
                                    <fixVersion>4.2.1</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2471612" author="xgen-internal-githook" created="Tue, 8 Oct 2019 14:53:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;randolph@mongodb.com&apos;, &apos;name&apos;: &apos;Randolph Tan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43174&quot; title=&quot;Designate the MigrationDestinationManager&amp;#39;s migrateThread as system operation killable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43174&quot;&gt;&lt;del&gt;SERVER-43174&lt;/del&gt;&lt;/a&gt; Make migration destination threads killable&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c4467548514ff07721f4de215b3b74d1111ee9d1)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a20d4b00131c9da1193b213f9fcc49dc9092e6c8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a20d4b00131c9da1193b213f9fcc49dc9092e6c8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2420009" author="xgen-internal-githook" created="Fri, 13 Sep 2019 18:46:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Randolph Tan&apos;, &apos;email&apos;: &apos;randolph@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43174&quot; title=&quot;Designate the MigrationDestinationManager&amp;#39;s migrateThread as system operation killable&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43174&quot;&gt;&lt;del&gt;SERVER-43174&lt;/del&gt;&lt;/a&gt; Make migration destination threads killable&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c4467548514ff07721f4de215b3b74d1111ee9d1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c4467548514ff07721f4de215b3b74d1111ee9d1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2412680" author="esha.maharishi@10gen.com" created="Mon, 9 Sep 2019 13:44:18 +0000"  >&lt;p&gt;Assigning to &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=renctan&quot; class=&quot;user-hover&quot; rel=&quot;renctan&quot;&gt;renctan&lt;/a&gt;, since it is a deadlock we introduced in 4.2 and should backport ASAP.&lt;/p&gt;</comment>
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