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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-43188] Add warnings about enableMajorityReadConcern and usage of arbiters on reconfig</title>
                <link>https://jira.mongodb.org/browse/SERVER-43188</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When starting up a Primary-Secondary-Arbiter configuration architecture, the warning messages regarding majority read concern enabled (implemented in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37557&quot; title=&quot;Add startup warning about enableMajorityReadConcern and usage of arbiters&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37557&quot;&gt;&lt;del&gt;SERVER-37557&lt;/del&gt;&lt;/a&gt;) are not logged on any node. This is symptomatic of an issue with how we log warnings on startup that depend on the configuration of the replica set. Currently, we are attempting to log the warning before the nodes receive the configuration, and so we won&apos;t enter &lt;a href=&quot;https://github.com/mongodb/mongo/blob/5a0f718e1309a4484580d8038016d043ef3b887f/src/mongo/db/repl/replication_coordinator_impl.cpp#L581-L592&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;this &apos;if&apos; statement&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;If a node in a PSA architecture goes down and restarts, it will log the warning correctly. This should also apply to nodes on a clean startup, as well as on reconfiguration.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="918125">SERVER-43188</key>
            <summary>Add warnings about enableMajorityReadConcern and usage of arbiters on reconfig</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="xuerui.fa@mongodb.com">Xuerui Fa</reporter>
                        <labels>
                            <label>former-quick-wins</label>
                            <label>neweng</label>
                    </labels>
                <created>Thu, 5 Sep 2019 22:38:34 +0000</created>
                <updated>Tue, 6 Dec 2022 02:48:45 +0000</updated>
                            <resolved>Tue, 18 May 2021 15:17:11 +0000</resolved>
                                                                    <component>Replication</component>
                                        <votes>1</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="3299995" author="JIRAUSER1254346" created="Fri, 24 Jul 2020 02:21:41 +0000"  >&lt;p&gt;Seems to affect 4.0.19 and 4.2.8 releases as well.&lt;/p&gt;</comment>
                            <comment id="2413174" author="siyuan.zhou@10gen.com" created="Mon, 9 Sep 2019 17:26:47 +0000"  >&lt;p&gt;Returning a warning in the reconfig response is another way to communicate it. Not sure if returning a warning is a good practice when also returning { ok: 1 }.&lt;/p&gt;</comment>
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