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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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-966] Mongo Server does not close stdin/stdout/stderr when using --fork</title>
                <link>https://jira.mongodb.org/browse/SERVER-966</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The mongod server does not daemonize correctly.  When using --fork it only fork&apos;s once and sets the session id.  It really needs to fork an additional time and also close stdin/stdout/stderr. &lt;/p&gt;

&lt;p&gt;This is causing an issue for us when we do our backups of mongodb.  Our process is:&lt;/p&gt;

&lt;p&gt;1) ssh root@hostname &quot;/etc/init.d/mongod stop&quot;&lt;br/&gt;
2) rsync the db directory&lt;br/&gt;
3) ssh root@hostname &quot;/etc/iint.d/mongod start&quot;&lt;/p&gt;

&lt;p&gt;This can also be replicated without using an init script by running a command like:&lt;/p&gt;

&lt;p&gt;ssh root@hostname &quot;/usr/bin/mongod --fork --logpath /var/log/mongo/mongod.log --dbpath /data/mongo/db&quot;&lt;/p&gt;

&lt;p&gt;This will &lt;b&gt;should&lt;/b&gt; return, but it does not. It hangs.  I have verified that this can be fixed by having mongod close stdin/stdout/stderr if you use --fork.&lt;/p&gt;

&lt;p&gt;For reference &lt;a href=&quot;http://www.svbug.com/documentation/comp.unix.programmer-FAQ/faq_2.html#SEC16&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://www.svbug.com/documentation/comp.unix.programmer-FAQ/faq_2.html#SEC16&lt;/a&gt;&lt;/p&gt;</description>
                <environment>CentOS 5.4</environment>
        <key id="11702">SERVER-966</key>
            <summary>Mongo Server does not close stdin/stdout/stderr when using --fork</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="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="jjh">Jeremy Hinegardner</reporter>
                        <labels>
                    </labels>
                <created>Mon, 5 Apr 2010 16:53:41 +0000</created>
                <updated>Tue, 12 Jul 2016 00:28:35 +0000</updated>
                            <resolved>Tue, 27 Apr 2010 19:27:25 +0000</resolved>
                                    <version>1.4.0</version>
                                    <fixVersion>1.5.1</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="13904" author="auto" created="Tue, 27 Apr 2010 15:05:20 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;login&apos;: &apos;RedBeard0531&apos;, &apos;name&apos;: &apos;Mathias Stearn&apos;, &apos;email&apos;: &apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: double forking + close stdin and stderr &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-966&quot; title=&quot;Mongo Server does not close stdin/stdout/stderr when using --fork&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-966&quot;&gt;&lt;del&gt;SERVER-966&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;http://github.com/mongodb/mongo/commit/c6cfe9fc00fd94b5098f4ab0b7cf7c130c03c324&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://github.com/mongodb/mongo/commit/c6cfe9fc00fd94b5098f4ab0b7cf7c130c03c324&lt;/a&gt;&lt;/p&gt;</comment>
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                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="70720">SERVER-9239</issuekey>
        </issuelink>
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                            <attachment id="10191" name="0001-Example-change-to-daemonization-which-appears-to-wor.patch" size="966" author="jjh" created="Mon, 5 Apr 2010 16:53:41 +0000"/>
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