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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-41192] Add a metric for the size of the SessionCatalog under `logicalSessionRecordCache`</title>
                <link>https://jira.mongodb.org/browse/SERVER-41192</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/serverStatus/#logicalsessionrecordcache&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;logicalSessionRecordCache&lt;/tt&gt;&lt;/a&gt; section of &lt;tt&gt;serverStatus&lt;/tt&gt; contains details about the entries in the logical session cache. This cache serves as a source of &apos;truth&apos; for which logical sessions are considered active or not and is used to reap the SessionCatalog.&lt;/p&gt;

&lt;p&gt;However, since the SessionCatalog is linked to the internal state of transactions - it can not always be reaped when a session expires from the logical sessions cache. Because of this, for diagnostics purposes we should have FTDC data for what&apos;s the number of sessions in the SessionCatalog.&lt;/p&gt;

&lt;p&gt;This ticket is to add a &lt;tt&gt;logicalSessionRecordCache.sessionCatalogSize&lt;/tt&gt; metric, which tracks the number of the SessionCatalog entries.&lt;/p&gt;</description>
                <environment></environment>
        <key id="770188">SERVER-41192</key>
            <summary>Add a metric for the size of the SessionCatalog under `logicalSessionRecordCache`</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="kaloian.manassiev@mongodb.com">Kaloian Manassiev</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Thu, 16 May 2019 21:26:34 +0000</created>
                <updated>Sun, 29 Oct 2023 22:20:57 +0000</updated>
                            <resolved>Wed, 22 May 2019 12:47:47 +0000</resolved>
                                                    <fixVersion>4.1.12</fixVersion>
                    <fixVersion>4.0.22</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="3459781" author="xgen-internal-githook" created="Thu, 22 Oct 2020 18:33:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kaloian Manassiev&apos;, &apos;email&apos;: &apos;kaloian.manassiev@mongodb.com&apos;, &apos;username&apos;: &apos;kaloianm&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41192&quot; title=&quot;Add a metric for the size of the SessionCatalog under `logicalSessionRecordCache`&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41192&quot;&gt;&lt;del&gt;SERVER-41192&lt;/del&gt;&lt;/a&gt; Add a logical session cache metric for the size of the SessionCatalog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c59329ab6b470a7f61a82b70910b529ae59982ee)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cc9003ec7e6608b558f90a7cd68898f115d2d93a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cc9003ec7e6608b558f90a7cd68898f115d2d93a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2255999" author="xgen-internal-githook" created="Wed, 22 May 2019 12:40:40 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kaloian.manassiev@mongodb.com&apos;, &apos;name&apos;: &apos;Kaloian Manassiev&apos;, &apos;username&apos;: &apos;kaloianm&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41192&quot; title=&quot;Add a metric for the size of the SessionCatalog under `logicalSessionRecordCache`&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41192&quot;&gt;&lt;del&gt;SERVER-41192&lt;/del&gt;&lt;/a&gt; Add a logical session cache metric for the size of the SessionCatalog&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c59329ab6b470a7f61a82b70910b529ae59982ee&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c59329ab6b470a7f61a82b70910b529ae59982ee&lt;/a&gt;&lt;/p&gt;</comment>
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