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    <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-56661] Evaluate increasing default close_handle_minimum in WiredTiger </title>
                <link>https://jira.mongodb.org/browse/SERVER-56661</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24949&quot; title=&quot;Lower WiredTiger idle handle timeout to 10 minutes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24949&quot;&gt;&lt;del&gt;SERVER-24949&lt;/del&gt;&lt;/a&gt; we lowered the WiredTiger &quot;close_idle_time&quot; from 27 hours to 10 minutes. As a result, idle file handles may be closed more aggressively. This may have a performance impact for workloads that have long periods of idle activity, since closing idle handles also clears content from the cache.&lt;/p&gt;

&lt;p&gt;Consider raising the &quot;close_handle_minimum&quot; threshold, which configures the number of file handles to keep open after a successful sweep, up from 250. This would prevent too many file handles from being closed during a sweep, and would be useful for workloads with a large number of collections and indexes. This may also raise the threshold for how long to keep around handles for dropped collections.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1702165">SERVER-56661</key>
            <summary>Evaluate increasing default close_handle_minimum in WiredTiger </summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="josef.ahmad@mongodb.com">Josef Ahmad</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Wed, 5 May 2021 14:49:58 +0000</created>
                <updated>Tue, 21 Nov 2023 20:59:32 +0000</updated>
                            <resolved>Tue, 19 Oct 2021 09:01:50 +0000</resolved>
                                                    <fixVersion>5.2.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="4131652" author="xgen-internal-githook" created="Tue, 19 Oct 2021 08:42:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Josef Ahmad&apos;, &apos;email&apos;: &apos;josef.ahmad@mongodb.com&apos;, &apos;username&apos;: &apos;josefahmad&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56661&quot; title=&quot;Evaluate increasing default close_handle_minimum in WiredTiger &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56661&quot;&gt;&lt;del&gt;SERVER-56661&lt;/del&gt;&lt;/a&gt; Increase close_handle_minimum from 250 to 2000&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3ea8c504b8e7ecfab552858d610a239e00004b1e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3ea8c504b8e7ecfab552858d610a239e00004b1e&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4017829" author="henrik.edin" created="Mon, 23 Aug 2021 19:13:17 +0000"  >&lt;p&gt;Spike for one sprint&lt;/p&gt;</comment>
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                            <customfieldvalue>The default WiredTiger close_handle_minimum has been increased from 250 to 2000. This is useful for workloads with a large number of collections and indexes, and helps mitigate possible side effects of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-24949&quot; title=&quot;Lower WiredTiger idle handle timeout to 10 minutes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-24949&quot;&gt;&lt;strike&gt;SERVER-24949&lt;/strike&gt;&lt;/a&gt; which closes idle handles more aggressively.&lt;br/&gt;
&lt;br/&gt;
close_handle_minimum is still configurable with the setParameter &amp;quot;wiredTigerFileHandleCloseMinimum&amp;quot;.</customfieldvalue>

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