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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-53934] Refuse to start shards and config servers with setParameter requireApiVersion=true</title>
                <link>https://jira.mongodb.org/browse/SERVER-53934</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49887&quot; title=&quot;requireApiVersion startup parameter&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49887&quot;&gt;&lt;del&gt;SERVER-49887&lt;/del&gt;&lt;/a&gt; we introduced the requireApiVersion parameter which can be enabled at startup with --requireApiVersion, or at runtime with &quot;setParameter&quot;. A server with this parameter enabled rejects all commands that lack an &quot;apiVersion&quot; field. This is intended to force external applications to configure their API version.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=xuerui.fa&quot; class=&quot;user-hover&quot; rel=&quot;xuerui.fa&quot;&gt;xuerui.fa&lt;/a&gt;&#160;and I realized, while discussing&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53555&quot; title=&quot;Performance regression for dropping/creating collections with requireApiVersion and majority write concern&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53555&quot;&gt;&lt;del&gt;SERVER-53555&lt;/del&gt;&lt;/a&gt;, that shard or config servers must require apiVersion. Connections internal to the sharded cluster should be marked as &quot;internal client&quot; and be excused from the requireApiVersion rule (once we fix&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53555&quot; title=&quot;Performance regression for dropping/creating collections with requireApiVersion and majority write concern&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53555&quot;&gt;&lt;del&gt;SERVER-53555&lt;/del&gt;&lt;/a&gt;); however, it seems a likely source of obscure bugs if some connections aren&apos;t marked internal and all their commands are rejected.&lt;/p&gt;

&lt;p&gt;Let&apos;s update mongod so it refuses to start with -&lt;del&gt;requireApiVersion plus either --shardSvr or --configSvr. And at runtime, if mongod was started with&#160;&lt;/del&gt;-shardSvr or --configSvr (but not --requireApiVersion), then &quot;setParameter&quot; should refuse to enable requireApiVersion. Let&apos;s document that config servers and shards shouldn&apos;t be started with requireApiVersion. The intention of requireApiVersion is enforce a rule on &lt;b&gt;external&lt;/b&gt; clients, and config servers and shards only talk with internal clients, so they shouldn&apos;t be started with requireApiVersion.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1595878">SERVER-53934</key>
            <summary>Refuse to start shards and config servers with setParameter requireApiVersion=true</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="huayu.ouyang@mongodb.com">Huayu Ouyang</assignee>
                                    <reporter username="jesse@mongodb.com">A. Jesse Jiryu Davis</reporter>
                        <labels>
                    </labels>
                <created>Wed, 20 Jan 2021 22:09:38 +0000</created>
                <updated>Sun, 29 Oct 2023 21:58:36 +0000</updated>
                            <resolved>Fri, 19 Feb 2021 20:41:32 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="3625816" author="xgen-internal-githook" created="Fri, 19 Feb 2021 20:01:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Huayu Ouyang&apos;, &apos;email&apos;: &apos;huayu.ouyang@mongodb.com&apos;, &apos;username&apos;: &apos;huayu-ouyang&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53934&quot; title=&quot;Refuse to start shards and config servers with setParameter requireApiVersion=true&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53934&quot;&gt;&lt;del&gt;SERVER-53934&lt;/del&gt;&lt;/a&gt; Refuse to start shards and config servers with setParameter requireApiVersion=true&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/59ca20987d055bdaa7214efd569047b5e5778191&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/59ca20987d055bdaa7214efd569047b5e5778191&lt;/a&gt;&lt;/p&gt;</comment>
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