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    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-43074] Do not use a global variable to encode &apos;multikeyPath&apos; information when writing out catalog documents</title>
                <link>https://jira.mongodb.org/browse/SERVER-43074</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There is no synchronization to protect &lt;a href=&quot;https://github.com/mongodb/mongo/blob/357ee99df95509292ae38e83057b6889ae1dedf1/src/mongo/db/storage/bson_collection_catalog_entry.cpp#L45&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this variable&lt;/a&gt; from being accessed concurrently, which may cause concurrent writers to write out incorrect &quot;multikeyPath&quot; information to catalog documents. &lt;/p&gt;</description>
                <environment></environment>
        <key id="910669">SERVER-43074</key>
            <summary>Do not use a global variable to encode &apos;multikeyPath&apos; information when writing out catalog documents</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="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Wed, 28 Aug 2019 22:28:16 +0000</created>
                <updated>Sun, 29 Oct 2023 22:17:36 +0000</updated>
                            <resolved>Fri, 30 Aug 2019 13:23:00 +0000</resolved>
                                    <version>3.4.22</version>
                    <version>3.6.14</version>
                    <version>4.0.12</version>
                    <version>4.2.0</version>
                                    <fixVersion>3.6.15</fixVersion>
                    <fixVersion>4.0.13</fixVersion>
                    <fixVersion>3.4.23</fixVersion>
                    <fixVersion>4.2.1</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Index Maintenance</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="2405491" author="geert.bosch" created="Tue, 3 Sep 2019 15:37:27 +0000"  >&lt;p&gt;This would most likely have been caught for years ago if we had been using thread sanitizers...&lt;/p&gt;</comment>
                            <comment id="2402001" author="xgen-internal-githook" created="Fri, 30 Aug 2019 16:04:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;username&apos;: &apos;dgottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43074&quot; title=&quot;Do not use a global variable to encode &amp;#39;multikeyPath&amp;#39; information when writing out catalog documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43074&quot;&gt;&lt;del&gt;SERVER-43074&lt;/del&gt;&lt;/a&gt;: Make appendMultikeyPathsAsBytes threadsafe.&lt;/p&gt;

&lt;p&gt;The method previously relied on catalog level serialization for guaranteeing&lt;br/&gt;
serialized access to a global variable.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb47871d19c81d08827f83df0554ce2c83cd8487)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/12c21c952a48fe83af11c19beb9761635ec0e699&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/12c21c952a48fe83af11c19beb9761635ec0e699&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2401994" author="xgen-internal-githook" created="Fri, 30 Aug 2019 15:58:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;username&apos;: &apos;dgottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43074&quot; title=&quot;Do not use a global variable to encode &amp;#39;multikeyPath&amp;#39; information when writing out catalog documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43074&quot;&gt;&lt;del&gt;SERVER-43074&lt;/del&gt;&lt;/a&gt;: Make appendMultikeyPathsAsBytes threadsafe.&lt;/p&gt;

&lt;p&gt;The method previously relied on catalog level serialization for guaranteeing&lt;br/&gt;
serialized access to a global variable.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb47871d19c81d08827f83df0554ce2c83cd8487)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fb45aa40b8c6f8796ca757c817f28790a0025ff2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fb45aa40b8c6f8796ca757c817f28790a0025ff2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2401965" author="xgen-internal-githook" created="Fri, 30 Aug 2019 15:50:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;username&apos;: &apos;dgottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43074&quot; title=&quot;Do not use a global variable to encode &amp;#39;multikeyPath&amp;#39; information when writing out catalog documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43074&quot;&gt;&lt;del&gt;SERVER-43074&lt;/del&gt;&lt;/a&gt;: Make appendMultikeyPathsAsBytes threadsafe.&lt;/p&gt;

&lt;p&gt;The method previously relied on catalog level serialization for guaranteeing&lt;br/&gt;
serialized access to a global variable.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb47871d19c81d08827f83df0554ce2c83cd8487)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4406a3674738f41826413a412025b1cef4857024&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4406a3674738f41826413a412025b1cef4857024&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2401958" author="xgen-internal-githook" created="Fri, 30 Aug 2019 15:47:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43074&quot; title=&quot;Do not use a global variable to encode &amp;#39;multikeyPath&amp;#39; information when writing out catalog documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43074&quot;&gt;&lt;del&gt;SERVER-43074&lt;/del&gt;&lt;/a&gt;: Make appendMultikeyPathsAsBytes threadsafe.&lt;/p&gt;

&lt;p&gt;The method previously relied on catalog level serialization for guaranteeing&lt;br/&gt;
serialized access to a global variable.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb47871d19c81d08827f83df0554ce2c83cd8487)&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/29ea16120d5fb478c3728a4ab3aac044df82a387&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/29ea16120d5fb478c3728a4ab3aac044df82a387&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2400443" author="xgen-internal-githook" created="Thu, 29 Aug 2019 20:19:11 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-43074&quot; title=&quot;Do not use a global variable to encode &amp;#39;multikeyPath&amp;#39; information when writing out catalog documents&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-43074&quot;&gt;&lt;del&gt;SERVER-43074&lt;/del&gt;&lt;/a&gt;: Make appendMultikeyPathsAsBytes threadsafe.&lt;/p&gt;

&lt;p&gt;The method previously relied on catalog level serialization for guaranteeing&lt;br/&gt;
serialized access to a global variable.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/eb47871d19c81d08827f83df0554ce2c83cd8487&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/eb47871d19c81d08827f83df0554ce2c83cd8487&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="266479">SERVER-22726</issuekey>
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            <issuekey id="911411">SERVER-43081</issuekey>
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            <issuelink>
            <issuekey id="911565">SERVER-43087</issuekey>
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            <issuekey id="1147787">SERVER-46147</issuekey>
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