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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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            <title>[SERVER-77324] Improve error semantics for ConnectionPool controllers&apos; untracked pools </title>
                <link>https://jira.mongodb.org/browse/SERVER-77324</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, we consider it a bug issue if a ConnectionPool::ControllerInterface implementation is asked to update state or provide information about a host that wasn&apos;t previously registered with the controller via addHost. Similarly, we consider it a correctness error if the same host was registered with the controller multiple times.&lt;/p&gt;

&lt;p&gt; In each case, we invariant in the controller when we detect this issue. However, the error  likely originates not in the controller&apos;s maintenance of the maps, but in the calling-code that forgot to register a pool or registers the same one multiple times. Throwing an error and allowing the calling-code to handle it (including by possibly invarianting) would improve the readability + maintainability of the code, produce better/more descriptive errors, and would allow us to remove the use of the helpers getOrInvariant and emplaceOrInvariant and replace them with ordinary standard library container API calls. &lt;/p&gt;</description>
                <environment></environment>
        <key id="2345827">SERVER-77324</key>
            <summary>Improve error semantics for ConnectionPool controllers&apos; untracked pools </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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="george.wangensteen@mongodb.com">George Wangensteen</reporter>
                        <labels>
                    </labels>
                <created>Fri, 19 May 2023 16:18:19 +0000</created>
                <updated>Tue, 30 May 2023 20:10:59 +0000</updated>
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