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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>[GODRIVER-2867] Connection leak caused by  connection-to-transaction pinning when connected to a load balancer</title>
                <link>https://jira.mongodb.org/browse/GODRIVER-2867</link>
                <project id="14289" key="GODRIVER">Go Driver</project>
                    <description>&lt;p&gt;In a Live migration, the Mongosync kept crashing because the connection pool is empty. After we added pool monitoring, we found the pinned connection to transactions kept increasing and never decreases. After talking with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=matt.dale%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;matt.dale@mongodb.com&quot;&gt;matt.dale@mongodb.com&lt;/a&gt; , we think there could be a potential driver bug that caused the connection never get released when the client is connected with a load balancer unless that session is used to run another transaction or other non-transaction operation.&lt;/p&gt;

&lt;p&gt;Please prioritize the fix because live migration would be potentially blocked by this bug.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2364159">GODRIVER-2867</key>
            <summary>Connection leak caused by  connection-to-transaction pinning when connected to a load balancer</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="13201">Fixed</resolution>
                                        <assignee username="matt.dale@mongodb.com">Matt Dale</assignee>
                                    <reporter username="huan.li@mongodb.com">Huan Li</reporter>
                        <labels>
                    </labels>
                <created>Fri, 9 Jun 2023 15:59:05 +0000</created>
                <updated>Sat, 28 Oct 2023 11:37:16 +0000</updated>
                            <resolved>Wed, 26 Jul 2023 05:06:03 +0000</resolved>
                                                    <fixVersion>1.12.1</fixVersion>
                    <fixVersion>1.11.8</fixVersion>
                    <fixVersion>1.11.9</fixVersion>
                                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="5591680" author="xgen-internal-githook" created="Wed, 26 Jul 2023 05:05:27 +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-2867&quot; title=&quot;Connection leak caused by  connection-to-transaction pinning when connected to a load balancer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;GODRIVER-2867&quot;&gt;&lt;del&gt;GODRIVER-2867&lt;/del&gt;&lt;/a&gt; Unpin connections when ending a session. (#1330)&lt;br/&gt;
Branch: release/1.11&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-go-driver/commit/2813bdf55668904f6e210396c2e6b02c4441bcf8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-go-driver/commit/2813bdf55668904f6e210396c2e6b02c4441bcf8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5591676" author="xgen-internal-githook" created="Wed, 26 Jul 2023 05:01:04 +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-2867&quot; title=&quot;Connection leak caused by  connection-to-transaction pinning when connected to a load balancer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;GODRIVER-2867&quot;&gt;&lt;del&gt;GODRIVER-2867&lt;/del&gt;&lt;/a&gt; Unpin connections when ending a session. (#1330)&lt;br/&gt;
Branch: release/1.12&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-go-driver/commit/e9e975d3cc3e980f431e09d76963055ca859b694&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-go-driver/commit/e9e975d3cc3e980f431e09d76963055ca859b694&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5591673" author="xgen-internal-githook" created="Wed, 26 Jul 2023 04:59:58 +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-2867&quot; title=&quot;Connection leak caused by  connection-to-transaction pinning when connected to a load balancer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;GODRIVER-2867&quot;&gt;&lt;del&gt;GODRIVER-2867&lt;/del&gt;&lt;/a&gt; Unpin connections when ending a session. (#1330)&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-go-driver/commit/5ee10b94cc666c2a73e3b89da1fd19bec2314dd0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-go-driver/commit/5ee10b94cc666c2a73e3b89da1fd19bec2314dd0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5581991" author="JIRAUSER1259527" created="Fri, 21 Jul 2023 04:51:11 +0000"  >&lt;p&gt;PR: &lt;a href=&quot;https://github.com/mongodb/mongo-go-driver/pull/1330&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-go-driver/pull/1330&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2364588">DRIVERS-2647</issuekey>
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