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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-6987] Mongod give error &quot;too many opens file&quot; </title>
                <link>https://jira.mongodb.org/browse/SERVER-6987</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi,&lt;br/&gt;
We have following setup:&lt;br/&gt;
mongos :1&lt;br/&gt;
config server :3&lt;br/&gt;
mongod (shards):10&lt;br/&gt;
all shards are journal enabled.&lt;br/&gt;
Every shard have 1.5 tb Disk space.&lt;br/&gt;
We make 365 days database. &lt;/p&gt;

&lt;p&gt;Get error logs &quot;too many opens files&quot;.&lt;/p&gt;

&lt;p&gt;After some time of above log we check following:&lt;/p&gt;

&lt;p&gt;1&amp;gt; ulimit -n is 35000&lt;br/&gt;
2&amp;gt; lsof | wc -l is 7343.&lt;br/&gt;
3&amp;gt; lsof | grep mongod | wc -l is 3455.&lt;/p&gt;

&lt;p&gt;Why did error &quot;too many opens files&quot; come??&lt;/p&gt;

&lt;p&gt;Kindly help me.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
JRV  &lt;/p&gt;



&lt;p&gt;We check &lt;br/&gt;
ulimit -n &lt;br/&gt;
all shards are journal enabled.&lt;/p&gt;

&lt;p&gt;Mongod1 become non-responsive. Logs show error &quot;too many opens files&quot;.&lt;/p&gt;</description>
                <environment>OEL Linux</environment>
        <key id="50077">SERVER-6987</key>
            <summary>Mongod give error &quot;too many opens file&quot; </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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="jitendra908">jitendra</reporter>
                        <labels>
                    </labels>
                <created>Mon, 10 Sep 2012 15:59:47 +0000</created>
                <updated>Tue, 11 Sep 2012 23:30:14 +0000</updated>
                            <resolved>Mon, 10 Sep 2012 16:52:41 +0000</resolved>
                                    <version>2.0.3</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="163200" author="ian@10gen.com" created="Tue, 11 Sep 2012 23:30:14 +0000"  >&lt;p&gt;hi Jitendra, as mentioned above, please open a thread at &lt;a href=&quot;https://groups.google.com/forum/?fromgroups#!forum/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/forum/?fromgroups#!forum/mongodb-user&lt;/a&gt; where our team will discuss the issue with you and then open a bug ticket here if it appears there is a bug.  thanks!&lt;/p&gt;</comment>
                            <comment id="162990" author="jitendra908" created="Tue, 11 Sep 2012 15:16:11 +0000"  >&lt;p&gt;Hi ,&lt;br/&gt;
Any updates&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
JRV&lt;/p&gt;</comment>
                            <comment id="162458" author="ian@10gen.com" created="Mon, 10 Sep 2012 16:52:41 +0000"  >&lt;p&gt;jitendra, as mentioned in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6734&quot; title=&quot;Mongod give error &amp;quot;too many opens file&amp;quot; &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6734&quot;&gt;&lt;del&gt;SERVER-6734&lt;/del&gt;&lt;/a&gt; it would be great if you could please start a discussion in the mongodb-user groups: &lt;a href=&quot;https://groups.google.com/forum/?fromgroups#!forum/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://groups.google.com/forum/?fromgroups#!forum/mongodb-user&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Once we&apos;ve confirmed this is a bug in the SERVER we can open a ticket in the SERVER project here.&lt;/p&gt;</comment>
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