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    <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-14283] [SERVER] Investigate SERVER-50827: Nodes with IP addresses in split horizons are unable to start</title>
                <link>https://jira.mongodb.org/browse/DOCS-14283</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;    Following points should be added to documentation:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;when configuring cluster for split horizon, IP addresses should not be used instead of host names&lt;/li&gt;
	&lt;li&gt;configuration when IP address is used for a host name will be rejected&lt;/li&gt;
	&lt;li&gt;it is possible to override such behavior using disableSplitHorizonIPCheck=true parameter&lt;/li&gt;
	&lt;li&gt;if cluster configuration is found to have an IP address in split horizon during cluster startup, the error would not prevent node from starting. This is done for scenarios when a node that is already configured was recently upgraded. Configuration changes happening after startup will still be rejected&lt;/li&gt;
&lt;/ul&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;    &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49081&quot; title=&quot;Disallow IP addresses in split horizon configurations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49081&quot;&gt;&lt;del&gt;SERVER-49081&lt;/del&gt;&lt;/a&gt; made it so that the &lt;tt&gt;replSetInitiate&lt;/tt&gt; or &lt;tt&gt;replSetReconfig&lt;/tt&gt; commands would be unable to accept IP addresses in their split horizon definitions, unless a special setParameter was toggled.&lt;/p&gt;

&lt;p&gt;Unfortunately, it introduced the check in a validation function which is exercised at startup. This prevents nodes with IP addresses in their split horizon definitions from starting up.&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="1645952">DOCS-14283</key>
            <summary>[SERVER] Investigate SERVER-50827: Nodes with IP addresses in split horizons are unable to start</summary>
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                                            <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="dave.cuthbert@mongodb.com">Dave Cuthbert</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Wed, 10 Mar 2021 17:56:40 +0000</created>
                <updated>Mon, 13 Nov 2023 17:57:13 +0000</updated>
                            <resolved>Thu, 20 Jan 2022 20:42:58 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
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