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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-13848] Investigate potential socket leaks from MongoS</title>
                <link>https://jira.mongodb.org/browse/SERVER-13848</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Relates to work done with releaseConnectionAfterResponse&lt;/p&gt;

&lt;hr /&gt;
&lt;p&gt;Results from some testing&lt;br/&gt;
Under 2.6 we do have some leftover connections, compare:&lt;br/&gt;
Pre Test (18 sockets with LSOF)&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;Post test (86 sockets under LSOF)&lt;/p&gt;
&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;However, under load there are 186 open sockets open during the test.&lt;/p&gt;

&lt;p&gt;This shows that connections are being closed by RCAR, but there may also be some leftovers. We need to investigate this.&lt;/p&gt;</description>
                <environment>Leakin</environment>
        <key id="135187">SERVER-13848</key>
            <summary>Investigate potential socket leaks from MongoS</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="5">Cannot Reproduce</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="david.hows">David Hows</reporter>
                        <labels>
                    </labels>
                <created>Tue, 6 May 2014 19:32:29 +0000</created>
                <updated>Tue, 6 Dec 2022 05:06:24 +0000</updated>
                            <resolved>Tue, 12 Feb 2019 21:02:09 +0000</resolved>
                                                                    <component>Networking</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2146535" author="jason.carey" created="Tue, 12 Feb 2019 21:01:53 +0000"  >&lt;p&gt;Given that we&apos;ve had many successful releases since 2.6, and many long lived processes, I&apos;m going to assume someone would have found an fd leak (as it would eventually hit a ulimit and fassert on a subsequent request for an fd) if we had one.&lt;/p&gt;

&lt;p&gt;Connection pool diagnostics is another thing entirely, but isn&apos;t a component of this ticket&lt;/p&gt;</comment>
                            <comment id="2141102" author="kaloian.manassiev" created="Thu, 7 Feb 2019 15:57:29 +0000"  >&lt;p&gt;We no longer use the old connection pool for CRUD and only for Map/Reduce. Service Arch team to check if this is still a problem.&lt;/p&gt;</comment>
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