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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-42841] Ignore wiredTiger cacheSizeGB &gt; RAM</title>
                <link>https://jira.mongodb.org/browse/SERVER-42841</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-20056&quot; title=&quot;Log a startup warning if wiredTigerCacheSizeGB is &amp;gt; 80% of RAM&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-20056&quot;&gt;&lt;del&gt;SERVER-20056&lt;/del&gt;&lt;/a&gt; we warn if the cache size is greater than 80% of RAM. I&apos;ve seen a case where the&#160;cacheSizeGB was accidentally set to 3x RAM and this led to some weird results including OOMKiller.&lt;/p&gt;

&lt;p&gt;Perhaps as well as the startup warning, we could ignore (or correct) any cacheSizeGB greater than RAM to save admin&apos;s from destabilizing a node?&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="898210">SERVER-42841</key>
            <summary>Ignore wiredTiger cacheSizeGB &gt; RAM</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="nicholas.cottrell@mongodb.com">Nic Cottrell</reporter>
                        <labels>
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                <created>Fri, 16 Aug 2019 10:43:22 +0000</created>
                <updated>Tue, 6 Dec 2022 02:50:36 +0000</updated>
                            <resolved>Fri, 16 Aug 2019 14:36:01 +0000</resolved>
                                                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
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                            <comment id="2375005" author="sara.williamson" created="Fri, 16 Aug 2019 14:36:01 +0000"  >&lt;p&gt;We don&apos;t think this is a good idea because silently ignoring would be more confusing than the current situation. We think the startup warning should be sufficient.&lt;/p&gt;</comment>
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