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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>[SERVER-70068] Check if listener socket is TCP before attempting to set backlog queue length</title>
                <link>https://jira.mongodb.org/browse/SERVER-70068</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;h3&gt;&lt;a name=&quot;Background&quot;&gt;&lt;/a&gt;Background&lt;/h3&gt;
&lt;p&gt;When &lt;a href=&quot;https://github.com/10gen/mongo/blob/399f53383e7d753329b8cee64df9aaa734e44ec4/src/mongo/transport/transport_layer_asio.cpp#L1553-L1570&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;attempting to retrieve a listener socket&apos;s backlog queue length&lt;/a&gt;, we don&apos;t attempt to first check if the socket is TCP. The concept of a backlog queue length only exists in TCP and is not seen on Unix-domain sockets.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;Problemcaused&quot;&gt;&lt;/a&gt;Problem caused&lt;/h3&gt;
&lt;p&gt;When starting up, the server will emit &lt;/p&gt;

&lt;p/&gt;
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&lt;p/&gt;

&lt;p&gt;for each non-TCP listener. This will have no effect on the livelihood of these listeners, as the server swallows the error and recovers immediately.&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;Solution&quot;&gt;&lt;/a&gt;Solution&lt;/h3&gt;
&lt;p&gt;Check if the socket is TCP after retrieving the acceptor record for a particular listener. If the socket is not TCP, do nothing. If it is, attempt to retrieve the backlog queue length.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2147454">SERVER-70068</key>
            <summary>Check if listener socket is TCP before attempting to set backlog queue length</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="13201">Fixed</resolution>
                                        <assignee username="jason.chan@mongodb.com">Jason Chan</assignee>
                                    <reporter username="blake.oler@mongodb.com">Blake Oler</reporter>
                        <labels>
                    </labels>
                <created>Wed, 28 Sep 2022 20:13:39 +0000</created>
                <updated>Sun, 29 Oct 2023 21:32:42 +0000</updated>
                            <resolved>Thu, 13 Oct 2022 14:20:47 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4900872" author="xgen-internal-githook" created="Thu, 13 Oct 2022 14:05:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Jason Chan&apos;, &apos;email&apos;: &apos;jason.chan@mongodb.com&apos;, &apos;username&apos;: &apos;jasonjhchan&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-70068&quot; title=&quot;Check if listener socket is TCP before attempting to set backlog queue length&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70068&quot;&gt;&lt;del&gt;SERVER-70068&lt;/del&gt;&lt;/a&gt; Check if listener socket is TCP before attempting to set backlog queue length&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e30779f2b5bdcc9a5fff58515ec88dfd2545815a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e30779f2b5bdcc9a5fff58515ec88dfd2545815a&lt;/a&gt;&lt;/p&gt;</comment>
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