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    <title>MongoDB Jira</title>
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    <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-49145] Prevent distributed lock timeouts in suites with background migrations</title>
                <link>https://jira.mongodb.org/browse/SERVER-49145</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A migration holds a distributed lock on the migrating namespace for its duration, so in suites with background migrations, like &lt;tt&gt;multi_stmt_txn_jscore_passthrough_with_migration&lt;/tt&gt;, sharding metadata commands that take the distributed lock can exhaust the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/33a643298e279b266362729e91481f159e0a7a69/src/mongo/s/catalog/dist_lock_manager.cpp#L40&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;20 second acquisition timeout&lt;/a&gt; if a migration takes longer than 20 seconds or if it repeatedly fails to acquire the lock due to a lack of a fairness policy. Even if the commands use the in-memory NamespaceSerializer lock, they can still time out taking the distributed lock because migrations don&apos;t use the NamespaceSerializer.&lt;/p&gt;

&lt;p&gt;Changing all config server commands that take distributed locks to use the NamespaceSerializer should avoid timeouts, or the distributed lock acquisition timeout can be raised in these suites.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1393123">SERVER-49145</key>
            <summary>Prevent distributed lock timeouts in suites with background migrations</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="jordi.serra-torrens@mongodb.com">Jordi Serra Torrens</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                            <label>sharding-wfbf-day</label>
                    </labels>
                <created>Fri, 26 Jun 2020 15:52:10 +0000</created>
                <updated>Sun, 29 Oct 2023 22:06:23 +0000</updated>
                            <resolved>Mon, 16 Nov 2020 16:16:46 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3491864" author="xgen-internal-githook" created="Mon, 16 Nov 2020 16:14:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jordi Serra Torrens&apos;, &apos;email&apos;: &apos;jordi.serra-torrens@mongodb.com&apos;, &apos;username&apos;: &apos;jordist&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49145&quot; title=&quot;Prevent distributed lock timeouts in suites with background migrations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49145&quot;&gt;&lt;del&gt;SERVER-49145&lt;/del&gt;&lt;/a&gt;: Prevent distributed lock timeouts in suites with background migrations&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/7a6078c14ec31052e5109629a78c988ca417b793&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/7a6078c14ec31052e5109629a78c988ca417b793&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="566671">SERVER-35938</issuekey>
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            <issuelink>
            <issuekey id="577430">SERVER-36322</issuekey>
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            <issuelink>
            <issuekey id="1308518">SERVER-47422</issuekey>
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