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    <title>MongoDB Jira</title>
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    <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>[GODRIVER-2078] Stress test Go driver connections during Evergreen runs</title>
                <link>https://jira.mongodb.org/browse/GODRIVER-2078</link>
                <project id="14289" key="GODRIVER">Go Driver</project>
                    <description>&lt;p&gt;As part of the Tesla connection failure investigation, we&apos;ve identified a number of failure modes with the current Go driver connection pooling and timeout logic that only occur during high load:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Empty connection pool can&apos;t recover if all operation timeouts are too low.&lt;/li&gt;
	&lt;li&gt;Connections are almost guaranteed to be closed if waiting too long for a connection from the pool or connection creation if the operation timeouts are too low.&lt;/li&gt;
	&lt;li&gt;If server latency spikes and many connections are closed, when the server recovers the connection pool doesn&apos;t recover because the application still has trouble creating connections if the operation timeouts are too low.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Configurations that seem to exacerbate the problem:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;TLS-encrypted connections&lt;/li&gt;
	&lt;li&gt;OCSP verification without cert stapling&lt;/li&gt;
	&lt;li&gt;Auth-handshake connections&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Create an Evergreen task that can reproduce these scenarios by load testing against an Atlas deployment. Consider running the load test as part of the Atlas test suite.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1815724">GODRIVER-2078</key>
            <summary>Stress test Go driver connections during Evergreen runs</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="10300" iconUrl="https://jira.mongodb.org/images/icons/priorities/medium.svg">Unknown</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="matt.dale@mongodb.com">Matt Dale</assignee>
                                    <reporter username="matt.dale@mongodb.com">Matt Dale</reporter>
                        <labels>
                    </labels>
                <created>Mon, 12 Jul 2021 19:59:57 +0000</created>
                <updated>Sat, 28 Oct 2023 11:37:45 +0000</updated>
                            <resolved>Sat, 16 Oct 2021 02:42:34 +0000</resolved>
                                                    <fixVersion>1.8.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4127781" author="xgen-internal-githook" created="Sat, 16 Oct 2021 02:41:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Matt Dale&apos;, &apos;email&apos;: &apos;9760375+matthewdale@users.noreply.github.com&apos;, &apos;username&apos;: &apos;matthewdale&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/GODRIVER-2078&quot; title=&quot;Stress test Go driver connections during Evergreen runs&quot; class=&quot;issue-link&quot; data-issue-key=&quot;GODRIVER-2078&quot;&gt;&lt;del&gt;GODRIVER-2078&lt;/del&gt;&lt;/a&gt; Add a Client stress test that simulates traffic overload and recovery. (#732)&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-go-driver/commit/aff557bb3476af003b9c39b72c692b77d8d5fb7a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-go-driver/commit/aff557bb3476af003b9c39b72c692b77d8d5fb7a&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1766841">GODRIVER-2038</issuekey>
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