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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-28812] Invariant failure when specifying readConcern &quot;majority&quot; and &quot;afterClusterTime&quot; on standalone mongod</title>
                <link>https://jira.mongodb.org/browse/SERVER-28812</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;If we are running a standalone mongod, executing the following commands from a shell will cause an invariant failure:&lt;/p&gt;

&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 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;db.test.runCommand({find:&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;test&quot;&lt;/span&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;, readConcern: {level:&lt;/span&gt;&lt;span style=&quot;color: blue; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;majority&quot;&lt;/span&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;, afterClusterTime: &lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;new&lt;/span&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; Timestamp(0,0)}});&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;There is an issue with the way read concern options are handled in &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dbee67bcd50a838d0a12cfcce2040479cb6fe2b8/src/mongo/db/commands/dbcommands.cpp#L1537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Command::run&lt;/a&gt; in &lt;b&gt;db/commands/dbcommands.cpp&lt;/b&gt;. The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dbee67bcd50a838d0a12cfcce2040479cb6fe2b8/src/mongo/db/commands/dbcommands.cpp#L1566&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;waitForReadConcern&lt;/a&gt; function will try to execute &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dbee67bcd50a838d0a12cfcce2040479cb6fe2b8/src/mongo/db/commands/dbcommands.cpp#L196&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;makeNoopWriteIfNeeded&lt;/a&gt; if the read concern level is &quot;majority&quot; and there is an &quot;afterClusterTime&quot; field, which will in turn try to run &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dbee67bcd50a838d0a12cfcce2040479cb6fe2b8/src/mongo/db/repl/replication_coordinator_impl.cpp#L1210&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;getMyLastAppliedOpTime&lt;/a&gt; which will cause &lt;a href=&quot;https://github.com/mongodb/mongo/blob/dbee67bcd50a838d0a12cfcce2040479cb6fe2b8/src/mongo/db/repl/replication_coordinator_impl.cpp#L1088&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this invariant failure&lt;/a&gt; if we are not running as a replica set.&lt;/p&gt;

&lt;p&gt;To fix this bug, I think the simplest approach may be to bypass any handling of readConcern options in Command::run if we know that we are not running as a replica set or master/slave node.&lt;/p&gt;</description>
                <environment></environment>
        <key id="374194">SERVER-28812</key>
            <summary>Invariant failure when specifying readConcern &quot;majority&quot; and &quot;afterClusterTime&quot; on standalone mongod</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="9">Done</resolution>
                                        <assignee username="misha.tyulenev@mongodb.com">Misha Tyulenev</assignee>
                                    <reporter username="william.schultz@mongodb.com">William Schultz</reporter>
                        <labels>
                    </labels>
                <created>Fri, 14 Apr 2017 20:02:50 +0000</created>
                <updated>Mon, 1 Mar 2021 21:04:25 +0000</updated>
                            <resolved>Fri, 5 May 2017 14:57:28 +0000</resolved>
                                    <version>3.5.5</version>
                                    <fixVersion>3.5.7</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1565489" author="xgen-internal-githook" created="Fri, 5 May 2017 14:08:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;mikety&apos;, u&apos;name&apos;: u&apos;Misha Tyulenev&apos;, u&apos;email&apos;: u&apos;misha@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28812&quot; title=&quot;Invariant failure when specifying readConcern &amp;quot;majority&amp;quot; and &amp;quot;afterClusterTime&amp;quot; on standalone mongod&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28812&quot;&gt;&lt;del&gt;SERVER-28812&lt;/del&gt;&lt;/a&gt;: allow readConcern majority and afterClusterTime on standalone mongod&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8a4b235971a59e92e3fa67fd6a92ddcfcd76ce81&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8a4b235971a59e92e3fa67fd6a92ddcfcd76ce81&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1356300">SERVER-48301</issuekey>
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