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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-23528] Primary restarts itself unexpectedly</title>
                <link>https://jira.mongodb.org/browse/SERVER-23528</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi,&lt;/p&gt;

&lt;p&gt;We have a three node mongodb cluster (with one arbiter) where every couple of days, mongod service on the primary restarts itself without any apparent reason. I have the following entry in the logs:&lt;/p&gt;
&lt;p/&gt;
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&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;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] now exiting&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] dbexit:&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] shutdown: going to close listening sockets...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] closing listening socket: 10&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] closing listening socket: 11&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.130-0500 [signalProcessingThread] removing socket file: /tmp/mongodb-27017.sock&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.137-0500 [signalProcessingThread] shutdown: going to flush diaglog...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.137-0500 [signalProcessingThread] shutdown: going to close sockets...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.137-0500 [signalProcessingThread] shutdown: waiting for fs preallocator...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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;   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;2016-04-04T03:34:50.137-0500 [signalProcessingThread] shutdown: lock for final commit...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&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-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;2016-04-04T03:34:50.137-0500 [signalProcessingThread] shutdown: final commit...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;There is nothing before the shutdown signal in the logs (just normal operation). Nothing weird in SAR logs (processor, memory, disk usage normal), no log messages in /var/log/messages. It just looks like as if somebody restarted it manually but in fact nobody did, there is no indication of that in command history.&lt;/p&gt;

&lt;p&gt;Mongodb version: 2.6.4-1&lt;br/&gt;
OS: RHEL 6.5&lt;/p&gt;

&lt;p&gt;Any idea why this is happening?&lt;/p&gt;</description>
                <environment></environment>
        <key id="277462">SERVER-23528</key>
            <summary>Primary restarts itself unexpectedly</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="9">Done</resolution>
                                        <assignee username="kelsey.schubert@mongodb.com">Kelsey Schubert</assignee>
                                    <reporter username="koitautomation@altegrity.com">Kroll Ontrack</reporter>
                        <labels>
                    </labels>
                <created>Tue, 5 Apr 2016 07:11:33 +0000</created>
                <updated>Thu, 7 Apr 2016 17:22:29 +0000</updated>
                            <resolved>Thu, 7 Apr 2016 17:22:29 +0000</resolved>
                                    <version>2.6.4</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1229372" author="thomas.schubert" created="Thu, 7 Apr 2016 17:22:29 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=koitautomation%40altegrity.com&quot; class=&quot;user-hover&quot; rel=&quot;koitautomation@altegrity.com&quot;&gt;koitautomation@altegrity.com&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The logs you have uploaded indicate the mongod received a &lt;b&gt;got signal 15 (Terminated)&lt;/b&gt; and as  a result the mongod is exiting normally. As you note, this signal is most commonly received when someone runs &lt;tt&gt;kill &amp;lt;pid-of-mongod&amp;gt;&lt;/tt&gt; as described in &lt;a href=&quot;http://docs.mongodb.org/manual/tutorial/manage-mongodb-processes/#use-kill&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stop mongoD Processes-&amp;gt;Use kill&lt;/a&gt;. Please investigate what is sending this signal to the mongod.&lt;/p&gt;

&lt;p&gt;Since this issue is not indicative of a bug in MongoDB server, I will be closing this ticket. For MongoDB-related support discussion please post on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-users group&lt;/a&gt; or &lt;a href=&quot;http://stackoverflow.com/questions/tagged/mongodb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stack Overflow with the &lt;tt&gt;mongodb&lt;/tt&gt; tag&lt;/a&gt;. A question like this involving more discussion would be best posted on the mongodb-users group.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Thomas&lt;/p&gt;</comment>
                            <comment id="1228850" author="koitautomation@altegrity.com" created="Thu, 7 Apr 2016 09:28:24 +0000"  >&lt;p&gt;I&apos;ve emailed the password for the zip file to you.&lt;/p&gt;</comment>
                            <comment id="1228849" author="koitautomation@altegrity.com" created="Thu, 7 Apr 2016 09:23:08 +0000"  >&lt;p&gt;Hi Thomas,&lt;/p&gt;

&lt;p&gt;1. Attaching the logs.&lt;br/&gt;
2. Yes, occurs everyday between 03:00 - 04:00&lt;br/&gt;
3. Yes but we need a new release of our application and this is a work in progress.&lt;/p&gt;</comment>
                            <comment id="1226643" author="thomas.schubert" created="Tue, 5 Apr 2016 19:21:26 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=koitautomation%40altegrity.com&quot; class=&quot;user-hover&quot; rel=&quot;koitautomation@altegrity.com&quot;&gt;koitautomation@altegrity.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thank you for reporting this issue. So we can continue our investigation, please answer the following questions:&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;Can you please upload the logs for the hour preceding the shutdown?&lt;/li&gt;
	&lt;li&gt;Does this issue occur only at specific times?&lt;/li&gt;
	&lt;li&gt;Have you considered upgrading to the latest revision of Mongo 2.6?&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;Kind regards,&lt;br/&gt;
Thomas&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="116762" name="logs.zip" size="136696" author="koitautomation@altegrity.com" created="Thu, 7 Apr 2016 09:27:49 +0000"/>
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