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    <title>MongoDB Jira</title>
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    <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-25985] rlimit check for nProcesses &gt; 0.5 nFiles fails for non-trivial, valid WiredTiger configurations</title>
                <link>https://jira.mongodb.org/browse/SERVER-25985</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We&apos;re commonly running into this warning in environments we feel are properly configured. It&apos;s a warning, not an error, but it&apos;s still creating friction through confusion among the user base, so it would be nice to address.&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;WARNING: soft rlimits too low. rlimits set to XXX processes, YYY files. Number of processes should be at least YYY/2 : 0.5 times number of files.&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;The issue is that WiredTiger now uses a file descriptor per namespace, meaning the number of file descriptors required can quickly outstrip the number of connections used in heavily multi-tenanted environments (commonly development and test) where connection requirements are modest but namespaces abound.&lt;/p&gt;

&lt;p&gt;You can see a more detailed discussion from the mongodb-user group:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://groups.google.com/d/topic/mongodb-user/aUrWTZxUUi4/discussion&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/d/topic/mongodb-user/aUrWTZxUUi4/discussion&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="314472">SERVER-25985</key>
            <summary>rlimit check for nProcesses &gt; 0.5 nFiles fails for non-trivial, valid WiredTiger configurations</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="9">Done</resolution>
                                        <assignee username="gregory.wlodarek@mongodb.com">Gregory Wlodarek</assignee>
                                    <reporter username="jared">Jared D. Cottrell</reporter>
                        <labels>
                    </labels>
                <created>Wed, 7 Sep 2016 00:01:39 +0000</created>
                <updated>Wed, 21 Aug 2019 13:29:58 +0000</updated>
                            <resolved>Wed, 21 Aug 2019 13:29:58 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="2380744" author="xgen-internal-githook" created="Wed, 21 Aug 2019 13:25:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25985&quot; title=&quot;rlimit check for nProcesses &amp;gt; 0.5 nFiles fails for non-trivial, valid WiredTiger configurations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25985&quot;&gt;&lt;del&gt;SERVER-25985&lt;/del&gt;&lt;/a&gt; Remove rlimit check for nProcesses and nFiles during startup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f5ee95fe7e9e6ca3db9db01e97a917f754d4d8cd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f5ee95fe7e9e6ca3db9db01e97a917f754d4d8cd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1380917" author="thomas.schubert" created="Fri, 9 Sep 2016 20:20:53 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jared&quot; class=&quot;user-hover&quot; rel=&quot;jared&quot;&gt;jared&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thank you for reporting this behavior - I&apos;m marking this ticket to indicate that it needs to be scheduled. Please continue to watch for updates.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Thomas&lt;/p&gt;</comment>
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