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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-6652] Update use cases for the noop scheduler recommendations</title>
                <link>https://jira.mongodb.org/browse/DOCS-6652</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;In the current docs located at &lt;a href=&quot;https://docs.mongodb.org/manual/administration/production-notes/#scheduling-for-virtual-devices&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.org/manual/administration/production-notes/#scheduling-for-virtual-devices&lt;/a&gt;, we make a blanket assertion that the &lt;tt&gt;noop&lt;/tt&gt; scheduler is recommended in virtualised environments.  However, this was derived from the VMWare KB located at: &lt;a href=&quot;http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=2011861&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=2011861&lt;/a&gt; which states preconditions that apply to only a minority of use cases.&lt;/p&gt;

&lt;p&gt;I would like the docs to replace the recommendation for noop for virtual devices to be replaced with the &quot;cfq&quot; scheduler.  The noop scheduler is only recommended when the following conditions are met:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;A replica set topolog or sharded cluster is used&lt;/li&gt;
	&lt;li&gt;The VM are located on the same virtual host&lt;/li&gt;
	&lt;li&gt;The underlying storage containing the DBpaths is a common blockstore (LUN)&lt;/li&gt;
	&lt;li&gt;The hypervisor is VMware based (ESXi etc)&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;Please note that AWS does not meet these conditions.&lt;/p&gt;</description>
                <environment>All virtualised Linux builds running on VMware hypervisors</environment>
        <key id="241057">DOCS-6652</key>
            <summary>Update use cases for the noop scheduler recommendations</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="ian.fogelman@mongodb.com">Ian Fogelman</assignee>
                                    <reporter username="luke.prochazka@mongodb.com">Luke Prochazka</reporter>
                        <labels>
                            <label>reopened</label>
                            <label>server-docs-bug-bash</label>
                            <label>triage</label>
                    </labels>
                <created>Wed, 25 Nov 2015 03:10:59 +0000</created>
                <updated>Mon, 30 Oct 2023 19:37:36 +0000</updated>
                            <resolved>Wed, 23 Aug 2023 20:12:16 +0000</resolved>
                                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="4946367" author="luke.prochazka" created="Tue, 1 Nov 2022 23:31:57 +0000"  >&lt;p&gt;Inappropriately closed by the bot, request is still looking for an update from the DOCS team.&lt;/p&gt;</comment>
                            <comment id="4943568" author="edu.bot" created="Tue, 1 Nov 2022 11:01:01 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
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