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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>[DOCS-13476] Investigate changes in SERVER-46249: Cluster createIndexes and createCollection may fail to run in readConcern-specifying transactions</title>
                <link>https://jira.mongodb.org/browse/DOCS-13476</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;

    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;    This will be a known error for PM-1168. Please ensure it is in release notes for 4.4.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    The test concurrent_drops_and_creates.js can be modified to create a scenario where createIndexes and createCollection can fail with the following message:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;Command create does not support { readConcern: { level: \&quot;snapshot\&quot;, provenance: \&quot;clientSupplied\&quot; } } :: caused by :: read concern not supported&quot;,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;This failure occurs if concurrent_drops_and_creates.js explicitly creates a collection or an index inside &lt;a href=&quot;https://github.com/mongodb/mongo/blob/b77010cab2386a58e05b6ffaa04921c43578467c/jstests/core/txns/concurrent_drops_and_creates.js#L46-L48&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this transaction&lt;/a&gt; (instead of the highlighted lines), and is run inside &lt;tt&gt;sharded_jscore_txns&lt;/tt&gt;. &lt;/p&gt;

&lt;p&gt;I spun up a &lt;tt&gt;ShardingTest&lt;/tt&gt; locally and attempted the same sequence of events as this test, but I did not run into the error, which leads me to believe something about the testing configuration results in readConcern getting explicitly forwarded to the cluster create and cluster createIndexes commands. &lt;/p&gt;

&lt;p&gt;Note that this error does not occur when running the same test (with the above modification) in replica_sets_jscore_passthrough.&lt;/p&gt;

&lt;p&gt;As an update, it looks like in order to reproduce this error, createCollection/createIndexes needs to be run &lt;b&gt;after&lt;/b&gt; another operation inside a transaction. If either is the &lt;b&gt;first&lt;/b&gt; operation inside the transaction, the error does not occur.&lt;/p&gt;


&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="1205243">DOCS-13476</key>
            <summary>Investigate changes in SERVER-46249: Cluster createIndexes and createCollection may fail to run in readConcern-specifying transactions</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="jeffrey.allen@mongodb.com">Jeffrey Allen</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                            <label>docs-query</label>
                    </labels>
                <created>Fri, 28 Feb 2020 22:07:03 +0000</created>
                <updated>Mon, 13 Nov 2023 18:08:53 +0000</updated>
                            <resolved>Thu, 9 Apr 2020 19:17:35 +0000</resolved>
                                                    <fixVersion>4.4.0-rc0</fixVersion>
                    <fixVersion>4.7.0</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                        <due>Fri, 3 Apr 2020 00:00:00 +0000</due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3033909" author="xgen-internal-githook" created="Thu, 9 Apr 2020 19:16:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jeff-allen-mongo&apos;, &apos;email&apos;: &apos;jeffrey.allen@10gen.com&apos;, &apos;username&apos;: &apos;jeff-allen-mongo&apos;}
&lt;p&gt;Message: (&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-13476&quot; title=&quot;Investigate changes in SERVER-46249: Cluster createIndexes and createCollection may fail to run in readConcern-specifying transactions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-13476&quot;&gt;&lt;del&gt;DOCS-13476&lt;/del&gt;&lt;/a&gt;): createCollections and createIndexes in transactions must use RC local&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/8731a300b1c2c38740e75d9dab5ea27c080e7da3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/8731a300b1c2c38740e75d9dab5ea27c080e7da3&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1161848">SERVER-46249</issuekey>
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                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1184239">DOCS-13448</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1255011">DOCS-13500</issuekey>
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