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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-65953] unexpected IP/Port logged in &quot;connection handshake&quot; error</title>
                <link>https://jira.mongodb.org/browse/SERVER-65953</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Error : &lt;br/&gt;
error msg=&quot;Cannot con&lt;br/&gt;
nect to MongoDB: cannot connect to MongoDB: server selection error: server selection timeout, current topology: { Type: Single, Servers: [&lt;/p&gt;
{ Addr: host2:port, Type: Unknown, Last error: connection() error occured during connection handshake: dial tcp 127.0.0.1:27017: connect: connection refused }
&lt;p&gt;, ] }&lt;/p&gt;

&lt;p&gt;Note: 127.0.0.1:27017 is not our host/port, not sure of this line in the log&lt;/p&gt;

&lt;p&gt;Got this error on one VM(azure), which is part of a mongodb replicaset.&lt;br/&gt;
We faced an issue from application end yesterday. &lt;br/&gt;
During the issue duration , affected host was secondary, it became primary after an election happened thereafter.&lt;/p&gt;

&lt;p&gt;We checked and found No health event reported for this VM. &lt;/p&gt;

&lt;p&gt;Issue resolved on its own. But we are not sure of this error and as this is prod env we are trying to investigate.&lt;br/&gt;
We are using Mongo 4.4.6 version on Azure VM&lt;/p&gt;</description>
                <environment></environment>
        <key id="2033081">SERVER-65953</key>
            <summary>unexpected IP/Port logged in &quot;connection handshake&quot; error</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="9">Done</resolution>
                                        <assignee username="chris.kelly@mongodb.com">Chris Kelly</assignee>
                                    <reporter username="debalina.saha@accenture.com">Debalina Saha</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Apr 2022 10:45:20 +0000</created>
                <updated>Wed, 22 Jun 2022 19:34:03 +0000</updated>
                            <resolved>Fri, 27 May 2022 09:00:18 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4577359" author="JIRAUSER1265262" created="Fri, 27 May 2022 08:59:53 +0000"  >&lt;p&gt;Roger, thanks! I&apos;ll go ahead and close this ticket then.&lt;/p&gt;

&lt;p&gt;Christopher&lt;/p&gt;</comment>
                            <comment id="4577314" author="JIRAUSER1269912" created="Fri, 27 May 2022 08:42:54 +0000"  >&lt;p&gt;We are not facing that issue anymore.  We suspected it to be an issue from VM. We have replaced the VM. &lt;/p&gt;

&lt;p&gt;Sorry for late reply.&lt;/p&gt;</comment>
                            <comment id="4577294" author="JIRAUSER1265262" created="Fri, 27 May 2022 08:30:07 +0000"  >&lt;p&gt;Hi Debalina,&lt;/p&gt;

&lt;p&gt;We still need additional information to diagnose the problem. If this is still an issue for you, would you please submit the requested information?&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Christopher&lt;/p&gt;</comment>
                            <comment id="4528726" author="JIRAUSER1265262" created="Thu, 5 May 2022 15:16:03 +0000"  >&lt;p&gt;Hi Debalina,&lt;/p&gt;

&lt;p&gt;In order to look into this some more, we will need some additional information.&lt;/p&gt;

&lt;p&gt;I&apos;ve created a secure &lt;a href=&quot;https://amphora.corp.mongodb.com/public/upload/eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJmb2xkZXJfaWQiOiIxNjIzNTQ2MTE3NzAiLCJleHAiOjE2NTQzNTUwMzh9.slxn43VN4pVDtX7YeYfxal7aarlkNMe7g2kdngmL9xQ&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;upload portal&lt;/a&gt; for you. Files uploaded to this portal are hosted on Box, are visible only to MongoDB employees, and are routinely deleted after some time.&lt;/p&gt;

&lt;p&gt;For each node in the replica set spanning a time period that includes the incident, would you please archive (tar or zip) and upload to that link:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;the mongod logs&lt;/li&gt;
	&lt;li&gt;the &lt;tt&gt;$dbpath/diagnostic.data&lt;/tt&gt; directory (the contents are described &lt;a href=&quot;https://docs.mongodb.com/manual/administration/analyzing-mongodb-performance/#full-time-diagnostic-data-capture&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt;)&lt;/li&gt;
	&lt;li&gt;the contents of your &lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/configuration-options/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;configuration file&lt;/a&gt; if you&apos;re using one, or your command line parameters if not.&lt;/li&gt;
	&lt;li&gt;the output of the following command:
	&lt;ul&gt;
		&lt;li&gt;&#160;lsof -n | grep 27017&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Regards,&lt;br/&gt;
Christopher&lt;/p&gt;</comment>
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