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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-50209] ShardRegistry internal reload is not interruptible</title>
                <link>https://jira.mongodb.org/browse/SERVER-50209</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The ShardRegistry periodically schedules an &lt;a href=&quot;https://github.com/mongodb/mongo/blob/befc561c8c06e2666dfcfd3b6bcadd5ef43bab88/src/mongo/s/client/shard_registry.cpp#L292&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;internal reload&lt;/a&gt; on its own dedicated executor. However, this reload is not interruptible in any way, even though shut down of the ShardRegistry will &lt;a href=&quot;https://github.com/mongodb/mongo/blob/befc561c8c06e2666dfcfd3b6bcadd5ef43bab88/src/mongo/s/client/shard_registry.cpp#L99&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;join on it&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Given that this internal reload has &lt;a href=&quot;https://github.com/mongodb/mongo/blob/befc561c8c06e2666dfcfd3b6bcadd5ef43bab88/src/mongo/s/client/shard_registry.cpp#L279&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;no operation deadline&lt;/a&gt;, it can get stuck for various reasons, which in turn will block the shutdown sequence.&lt;/p&gt;

&lt;p&gt;As part of this ticket, we should make ShardRegistry keep track of its internal reloads (possibly through an &lt;a href=&quot;https://github.com/mongodb/mongo/blob/befc561c8c06e2666dfcfd3b6bcadd5ef43bab88/src/mongo/db/operation_context_group.h#L44&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;OperationContextGroup&lt;/tt&gt;&lt;/a&gt;) so that it can be interrupted on shutdown.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1436702">SERVER-50209</key>
            <summary>ShardRegistry internal reload is not interruptible</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="marcos.grillo@mongodb.com">Marcos Jos&#233; Grillo Ramirez</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Mon, 10 Aug 2020 09:59:16 +0000</created>
                <updated>Sun, 29 Oct 2023 22:04:38 +0000</updated>
                            <resolved>Fri, 28 May 2021 11:39:09 +0000</resolved>
                                    <version>4.4.0</version>
                                    <fixVersion>4.4.7</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3847254" author="xgen-internal-githook" created="Fri, 28 May 2021 11:35:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Marcos Jos&#233; Grillo Ramirez&apos;, &apos;email&apos;: &apos;marcos.grillo@mongodb.com&apos;, &apos;username&apos;: &apos;m4nti5&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50209&quot; title=&quot;ShardRegistry internal reload is not interruptible&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50209&quot;&gt;&lt;del&gt;SERVER-50209&lt;/del&gt;&lt;/a&gt; Allow interruption of shard registry refresh thread when shutting down&lt;br/&gt;
Branch: v4.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/98af1d93241d11ba5e8f748968a298b5b900a8b6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/98af1d93241d11ba5e8f748968a298b5b900a8b6&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3330399" author="kevin.pulo@10gen.com" created="Mon, 10 Aug 2020 13:25:08 +0000"  >&lt;p&gt;Note that this is being incidentally fixed in master branch by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46202&quot; title=&quot;Implement ShardRegistry on top of ReadThroughCache to make it causally consistent&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46202&quot;&gt;&lt;del&gt;SERVER-46202&lt;/del&gt;&lt;/a&gt;, so only needs to be directly fixed in the v4.4 branch.&lt;/p&gt;</comment>
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            <issuekey id="1152467">SERVER-46202</issuekey>
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