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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>[CSHARP-2540] A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }</title>
                <link>https://jira.mongodb.org/browse/CSHARP-2540</link>
                <project id="10041" key="CSHARP">C# Driver</project>
                    <description>&lt;p&gt;Hi,&#160;&lt;/p&gt;

&lt;p&gt;I have a docker containerized .Net core web API application running in AKS which connects to Azure cosmos db using Mondb .net driver to perform CRUD operations.&lt;/p&gt;

&lt;p&gt;I don&apos;t face any issues running locally, but in the AKS cluster MongoDB client throws System.TimeoutException frequently and it gets resolved only after restarting the Pod.&lt;/p&gt;

&lt;p&gt;MongoDb .Net driver Version: 2.7.3(latest)&lt;/p&gt;

&lt;p&gt;MongoClient is registered as a singleton service and enabled Ssl as well.&lt;/p&gt;

&lt;p&gt;Please find the exception below and let me know how to resolve this as early as possible. Its creating issues and am unable to predict the root cause as it occurs only in the azure cluster.&lt;/p&gt;

&lt;p&gt;Suggest any workarounds if possible.&lt;/p&gt;

&lt;p&gt;Thanks in advance!&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;&quot;ClassName&quot;: &quot;System.TimeoutException&quot;,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &quot;Message&quot;: &quot;A timeout occured after 30000ms selecting a server using CompositeServerSelector\{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }. Client view of cluster state is \{ ClusterId : \&quot;1\&quot;, ConnectionMode : \&quot;ReplicaSet\&quot;, Type : \&quot;ReplicaSet\&quot;, State : \&quot;Disconnected\&quot;, Servers : [{ ServerId: \&quot;{ ClusterId : 1, EndPoint : \&quot;Unspecified/cdb-ms-prod-eastus1-fd18.documents.azure.com:10255\&quot; }\&quot;, EndPoint: \&quot;Unspecified/cdb-ms-prod-eastus1-fd18.documents.azure.com:10255\&quot;, State: \&quot;Disconnected\&quot;, Type: \&quot;Unknown\&quot; }] }.&quot;,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &quot;Data&quot;: null,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &quot;InnerException&quot;: null,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &quot;HelpURL&quot;: null,&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; &quot;StackTraceString&quot;: &quot; at MongoDB.Driver.Core.Clusters.Cluster.ThrowTimeoutException(IServerSelector selector, ClusterDescription description)\n at MongoDB.Driver.Core.Clusters.Cluster.WaitForDescriptionChangedHelper.HandleCompletedTask(Task completedTask)\n at MongoDB.Driver.Core.Clusters.Cluster.WaitForDescriptionChangedAsync(IServerSelector selector, ClusterDescription description, Task descriptionChangedTask, TimeSpan timeout, CancellationToken cancellationToken)\n at MongoDB.Driver.Core.Clusters.Cluster.SelectServerAsync(IServerSelector selector, CancellationToken cancellationToken)\n at MongoDB.Driver.MongoClient.AreSessionsSupportedAfterSeverSelctionAsync(CancellationToken cancellationToken)\n at MongoDB.Driver.MongoClient.AreSessionsSupportedAsync(CancellationToken cancellationToken)\n at MongoDB.Driver.MongoClient.StartImplicitSessionAsync(CancellationToken cancellationToken)\n at MongoDB.Driver.MongoCollectionImpl`1.UsingImplicitSessionAsync[TResult](Func`2 funcAsync, CancellationToken cancellationToken)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;/div&gt;
&lt;p/&gt;</description>
                <environment>Azure</environment>
        <key id="712897">CSHARP-2540</key>
            <summary>A timeout occured after 30000ms selecting a server using CompositeServerSelector{ Selectors = MongoDB.Driver.MongoClient+AreSessionsSupportedServerSelector, LatencyLimitingServerSelector{ AllowedLatencyRange = 00:00:00.0150000 } }</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="santy">santhosh K</reporter>
                        <labels>
                    </labels>
                <created>Thu, 7 Mar 2019 21:39:57 +0000</created>
                <updated>Wed, 8 Mar 2023 19:41:42 +0000</updated>
                            <resolved>Mon, 11 Mar 2019 19:11:56 +0000</resolved>
                                    <version>2.7.3</version>
                                                    <component>Connectivity</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="5259631" author="james.kovacs" created="Wed, 8 Mar 2023 19:41:42 +0000"  >&lt;p&gt;For more information, see &lt;a href=&quot;https://www.mongodb.com/docs/drivers/csharp/current/faq/#why-does-the-driver-throw-a-timeout-during-server-selection-&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Why Does the Driver Throw a Timeout During Server Selection?&lt;/a&gt; in the MongoDB .NET/C# Driver FAQ.&lt;/p&gt;</comment>
                            <comment id="2177531" author="ian@10gen.com" created="Mon, 11 Mar 2019 19:11:56 +0000"  >&lt;p&gt;dupe of &lt;a href=&quot;https://jira.mongodb.org/browse/CSHARP-1895&quot; title=&quot;System.TimeoutException: A timeout occured after 30000ms selecting a server using CompositeServerSelector&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CSHARP-1895&quot;&gt;&lt;del&gt;CSHARP-1895&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                            <outwardlinks description="duplicates">
                                        <issuelink>
            <issuekey id="346193">CSHARP-1895</issuekey>
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