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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-30482] Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize</title>
                <link>https://jira.mongodb.org/browse/SERVER-30482</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While doing some testing with mongos connection we noticed that if you set the ShardingTaskExecutorPoolHostTimeoutMS below the heartbeat timer mongos will close the idle sessions to secondaries (in our case they aren&apos;t in use). &lt;/p&gt;

&lt;p&gt;This is a poor behavior because ShardingTaskExecutorPoolMinSize is set to 1, and this ShardingTaskExecutorPoolHostTimeoutMS enforcement is causing the only single connection open to close-- which means that mongos must then immediately create a new one.&lt;/p&gt;

&lt;p&gt;Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize regardless of the configured ShardingTaskExecutorPoolHostTimeoutMS&lt;/p&gt;</description>
                <environment></environment>
        <key id="411738">SERVER-30482</key>
            <summary>Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize</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="henrik.edin@mongodb.com">Henrik Edin</assignee>
                                    <reporter username="andrew.young">Andrew Young</reporter>
                        <labels>
                            <label>neweng</label>
                            <label>platforms-interns-2017</label>
                    </labels>
                <created>Wed, 2 Aug 2017 18:40:53 +0000</created>
                <updated>Mon, 30 Oct 2023 23:14:40 +0000</updated>
                            <resolved>Wed, 11 Oct 2017 17:28:11 +0000</resolved>
                                    <version>3.2.16</version>
                                    <fixVersion>3.2.18</fixVersion>
                    <fixVersion>3.4.11</fixVersion>
                    <fixVersion>3.6.0-rc0</fixVersion>
                                    <component>Networking</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1714839" author="xgen-internal-githook" created="Wed, 1 Nov 2017 18:48:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;, &apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30482&quot; title=&quot;Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30482&quot;&gt;&lt;del&gt;SERVER-30482&lt;/del&gt;&lt;/a&gt; Verify and enforce good ordering for the values for the sharding task executor refresh and host timeouts.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 8c50e87a82afdb7852fbac32e9bb4dbe7b6f8030)&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/577f6c2677eb1384e5a50b6829bfa2ad7665e3a1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/577f6c2677eb1384e5a50b6829bfa2ad7665e3a1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1714837" author="xgen-internal-githook" created="Wed, 1 Nov 2017 18:47:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;, &apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30482&quot; title=&quot;Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30482&quot;&gt;&lt;del&gt;SERVER-30482&lt;/del&gt;&lt;/a&gt; Verify and enforce good ordering for the values for the sharding task executor refresh and host timeouts.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 8c50e87a82afdb7852fbac32e9bb4dbe7b6f8030)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8e275be84c951475eb6405bc770b3be8a5d817fb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8e275be84c951475eb6405bc770b3be8a5d817fb&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1696207" author="xgen-internal-githook" created="Wed, 11 Oct 2017 17:20:22 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;henrik.edin@mongodb.com&apos;, &apos;name&apos;: &apos;Henrik Edin&apos;, &apos;username&apos;: &apos;henrikedin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30482&quot; title=&quot;Mongos should not close sessions to below the configured ShardingTaskExecutorPoolMinSize&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30482&quot;&gt;&lt;del&gt;SERVER-30482&lt;/del&gt;&lt;/a&gt; Verify and enforce good ordering for the values for the sharding task executor refresh and host timeouts.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8c50e87a82afdb7852fbac32e9bb4dbe7b6f8030&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8c50e87a82afdb7852fbac32e9bb4dbe7b6f8030&lt;/a&gt;&lt;/p&gt;</comment>
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