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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>[DOCS-13665] [OM] COMPUTED_MEMORY dosen&apos;t exist through Ops Manager API</title>
                <link>https://jira.mongodb.org/browse/DOCS-13665</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;p&gt;The documentation states&#160;&lt;tt&gt;COMPUTED_MEMORY&lt;/tt&gt; measurement. It doesn&apos;t exist when read through Ops Manager, however. Any way we could get total physical memory or total Wired Tiger cache through Ops Manager API?&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://docs.opsmanager.mongodb.com/v4.0/reference/api/measures/measurement-types/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.opsmanager.mongodb.com/v4.0/reference/api/measures/measurement-types/&lt;/a&gt;&lt;/p&gt;
</description>
                <environment>&lt;a href=&quot;https://docs.opsmanager.mongodb.com/v4.0/reference/api/measures/measurement-types/&quot;&gt;https://docs.opsmanager.mongodb.com/v4.0/reference/api/measures/measurement-types/&lt;/a&gt;</environment>
        <key id="1361904">DOCS-13665</key>
            <summary>[OM] COMPUTED_MEMORY dosen&apos;t exist through Ops Manager API</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="9">Done</resolution>
                                        <assignee username="tony.sansone@mongodb.com">Anthony Sansone</assignee>
                                    <reporter username="andugurmu@gmail.com">Andualem Gurmu</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 May 2020 02:45:18 +0000</created>
                <updated>Sun, 13 Sep 2020 00:30:07 +0000</updated>
                            <resolved>Sun, 13 Sep 2020 00:30:03 +0000</resolved>
                                                                    <component>API</component>
                    <component>Ops Manager</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="3391150" author="tony.sansone" created="Sun, 13 Sep 2020 00:30:03 +0000"  >&lt;p&gt;I believe development has answered the question. The documentation will be updated with specifics of all values at a later date.&lt;/p&gt;</comment>
                            <comment id="3222435" author="anton.oyung" created="Wed, 24 Jun 2020 17:47:49 +0000"  >&lt;p&gt;Answer to OP&apos;s first question:&#160;&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;From my findings &lt;a href=&quot;#L169]&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;here&lt;/a&gt;, computed memory is described as non-mapped virtual memory, which can be calculated as such&#160;&lt;br/&gt;
&#160; &#160;COMPUTED_MEMORY =&#160;mem-virtual-gauge-mbytes - ( mem-mapped-gauge-mbytes * 2 ) (when journaling is enabled)&#160;&lt;br/&gt;
&#160; &#160;COMPUTED_MEMORY =&#160;mem-virtual-gauge-mbytes - ( mem-mapped-gauge-mbytes ) (when journaling is disabled)&#160;&lt;/li&gt;
&lt;/ul&gt;



&lt;p&gt;To answer your questions:&#160;&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;MongoDB&lt;br/&gt;
&#160; &#160; &#160; &#160; - Virtual: MEMORY_VIRTUAL found &lt;a href=&quot;#L249]&quot; target=&quot;_blank&quot; rel=&quot;noopener&quot;&gt;here&lt;/a&gt;&lt;br/&gt;
&#160; &#160; &#160; &#160; - Physical: MEMORY_RESIDENT&#160;&lt;br/&gt;
&#160; &#160; &#160; &#160; - From what I can tell, we don&apos;t have a total memory value&lt;/li&gt;
	&lt;li&gt;Wired Tiger&lt;br/&gt;
&#160; &#160; &#160; &#160; - I don&apos;t think we have any values relating to virtual or physical used bytes for the cache, but we do have CACHE_USED_BYTES&#160;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Let me know if you have further questions!&#160;&lt;/p&gt;</comment>
                    </comments>
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                            <attachment id="266916" name="screenshot-1.png" size="130516" author="tony.sansone@mongodb.com" created="Tue, 23 Jun 2020 03:08:48 +0000"/>
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