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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-39966] Report both total actual system memory and cgroup memory limit in hostInfo</title>
                <link>https://jira.mongodb.org/browse/SERVER-39966</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;WIth &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16571&quot; title=&quot;Use Actual Memory Constraint vs. Total System Memory When They Differ&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16571&quot;&gt;&lt;del&gt;SERVER-16571&lt;/del&gt;&lt;/a&gt; hostInfo.memSizeMB will now report the cgroup memory limit instead of the actual system memory. However system memory statistics in ftdc are reported for the system as a whole, not just for the container, so interpreting them requires knowing the total actual system memory. There may be other diagnostic purposes for knowing the actual system memory as well, so it&apos;s difficult to know up front the impact of no longer having this information. Also, seeing different values for system memory vs memSizeMB will alert us to the fact that a cgroup is in use, which also has diagnostic value.&lt;/p&gt;

&lt;p&gt;Suggest adding a field, maybe hostInfo.systemMemSizeMB, to report this information.&lt;/p&gt;</description>
                <environment></environment>
        <key id="710095">SERVER-39966</key>
            <summary>Report both total actual system memory and cgroup memory limit in hostInfo</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="matt.lord">Matt Lord</assignee>
                                    <reporter username="bruce.lucas@mongodb.com">Bruce Lucas</reporter>
                        <labels>
                            <label>FTDC</label>
                            <label>memory</label>
                    </labels>
                <created>Tue, 5 Mar 2019 18:31:42 +0000</created>
                <updated>Sun, 29 Oct 2023 22:23:17 +0000</updated>
                            <resolved>Fri, 8 Mar 2019 17:46:15 +0000</resolved>
                                                    <fixVersion>4.1.9</fixVersion>
                                    <component>Diagnostics</component>
                                        <votes>1</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="2175997" author="matt.lord" created="Fri, 8 Mar 2019 17:46:15 +0000"  >&lt;p&gt;This was resolved as part of&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16571&quot; title=&quot;Use Actual Memory Constraint vs. Total System Memory When They Differ&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16571&quot;&gt;&lt;del&gt;SERVER-16571&lt;/del&gt;&lt;/a&gt;:&lt;br/&gt;
Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16571&quot; title=&quot;Use Actual Memory Constraint vs. Total System Memory When They Differ&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16571&quot;&gt;&lt;del&gt;SERVER-16571&lt;/del&gt;&lt;/a&gt; Use Actual Memory Constraint vs. Total System Memory When They Differ&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fafe4d03edd877e4c022cb3dd714ab1ea6ae4fcd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fafe4d03edd877e4c022cb3dd714ab1ea6ae4fcd&lt;/a&gt;&lt;/p&gt;</comment>
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