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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-41014] runCreateIndexesWithCoordinator does not correctly relock the database</title>
                <link>https://jira.mongodb.org/browse/SERVER-41014</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;At the beginning of &lt;a href=&quot;https://github.com/mongodb/mongo/blob/4fb71c5a1c79b745ef56d53a8264ef5fdd202dda/src/mongo/db/commands/create_indexes.cpp#L507-L532&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this code in runCreateIndexesWithCoordinator&lt;/a&gt;, a collection lock is acquired in &lt;tt&gt;MODE_IX&lt;/tt&gt; using &lt;tt&gt;AutoGetCollection&lt;/tt&gt;. This also locks the database in &lt;tt&gt;MODE_IX&lt;/tt&gt;, but this lock is not yielded before trying to relock the database with &lt;tt&gt;MODE_X&lt;/tt&gt;. This results in a conversion of the database lock instead of a relock, potentially resulting in deadlock.&lt;/p&gt;</description>
                <environment></environment>
        <key id="758381">SERVER-41014</key>
            <summary>runCreateIndexesWithCoordinator does not correctly relock the database</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="geert.bosch@mongodb.com">Geert Bosch</reporter>
                        <labels>
                    </labels>
                <created>Sat, 4 May 2019 20:02:38 +0000</created>
                <updated>Sun, 29 Oct 2023 22:21:18 +0000</updated>
                            <resolved>Tue, 4 Jun 2019 17:08:13 +0000</resolved>
                                                    <fixVersion>4.2.0-rc3</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Index Maintenance</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="2305805" author="xgen-internal-githook" created="Sat, 29 Jun 2019 20:29:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; fix deadlock in runCreateIndexesWithCoordinator()&lt;/p&gt;

&lt;p&gt;(cherry picked from commit f6e5ad7fe565d291f7333966b5f0355e7c06650a)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2ab86773334aa6cedbe9609c06a0f538cd39cede&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2ab86773334aa6cedbe9609c06a0f538cd39cede&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2305734" author="xgen-internal-githook" created="Sat, 29 Jun 2019 16:00:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;username&apos;: &apos;benety&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; runCreateIndexesWithCoordinator() uses helper functions extracted from runCreateIndexes()&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 0a17878018fb5d14d8eff2f2c12b3aa7c4d21958)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e6513a6b1d45045f735f207ea78f35efaac7967e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e6513a6b1d45045f735f207ea78f35efaac7967e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2305721" author="xgen-internal-githook" created="Sat, 29 Jun 2019 13:39:57 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; extract helper functions from runCreateIndexes()&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 47ca83f447f651fa757d995bc65638d7599e1e5a)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6efb45d403f69799574c48698b13a03cad4fca74&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6efb45d403f69799574c48698b13a03cad4fca74&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2270333" author="xgen-internal-githook" created="Tue, 4 Jun 2019 14:00:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; extract helper functions from runCreateIndexes()&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit 47ca83f447f651fa757d995bc65638d7599e1e5a.&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/777d16318b500ffab9a9ff19e639f5dc08e1c1b2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/777d16318b500ffab9a9ff19e639f5dc08e1c1b2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2269898" author="xgen-internal-githook" created="Tue, 4 Jun 2019 02:29:00 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; fix deadlock in runCreateIndexesWithCoordinator()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f6e5ad7fe565d291f7333966b5f0355e7c06650a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f6e5ad7fe565d291f7333966b5f0355e7c06650a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2269782" author="xgen-internal-githook" created="Mon, 3 Jun 2019 22:59:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; runCreateIndexesWithCoordinator() uses helper functions extracted from runCreateIndexes()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/0a17878018fb5d14d8eff2f2c12b3aa7c4d21958&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/0a17878018fb5d14d8eff2f2c12b3aa7c4d21958&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2269313" author="xgen-internal-githook" created="Mon, 3 Jun 2019 18:37:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41014&quot; title=&quot;runCreateIndexesWithCoordinator does not correctly relock the database&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41014&quot;&gt;&lt;del&gt;SERVER-41014&lt;/del&gt;&lt;/a&gt; extract helper functions from runCreateIndexes()&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/47ca83f447f651fa757d995bc65638d7599e1e5a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/47ca83f447f651fa757d995bc65638d7599e1e5a&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="767916">SERVER-41141</issuekey>
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            <issuekey id="758724">SERVER-41021</issuekey>
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            <issuekey id="683527">SERVER-39369</issuekey>
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