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<channel>
    <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>
    </build-info>


<item>
            <title>[SERVER-29947] Implement Storage Node Watchdog</title>
                <link>https://jira.mongodb.org/browse/SERVER-29947</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #EEEEEE;border-color: #ccc;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;border-bottom-color: #ccc;background-color: #6CB33F;&quot;&gt;&lt;b&gt;Issue Status as of Jul 13, 2017&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #EEEEEE;&quot;&gt;
&lt;p&gt;&lt;b&gt;FEATURE DESCRIPTION&lt;/b&gt;&lt;br/&gt;
The Storage Node Watchdog is a new feature in MongoDB designed to detect unresponsive I/O conditions.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;VERSIONS&lt;/b&gt;&lt;br/&gt;
This is an enterprise only feature in MongoDB, available in the 3.2.16 and 3.4.7 and newer production releases. The Watchdog is &lt;a href=&quot;https://docs.mongodb.com/manual/administration/monitoring/#storage-node-watchdog&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;not available on macOS&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;OPERATION&lt;/b&gt;&lt;br/&gt;
The &lt;a href=&quot;https://docs.mongodb.com/manual/administration/monitoring/#storage-node-watchdog&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Storage Node Watchdog&lt;/a&gt; is disabled by default:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;It must be enabled at startup as follows:
&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;
		&lt;tbody &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-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;mongod --setParameter watchdogPeriodSeconds=60&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;The &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; parameter is an integer number of seconds and can be either &lt;tt&gt;-1&lt;/tt&gt; (the default value), which means the watchdog is disabled, or a value greater or equal to &lt;tt&gt;60&lt;/tt&gt;.&lt;/p&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;The watchdog may be paused at runtime by setting &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; to -1 via the setParameter command:
&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;
		&lt;tbody &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-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;MongoDB Enterprise&amp;gt; db.runCommand({setParameter:1, watchdogPeriodSeconds : -1})&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;/li&gt;
	&lt;li&gt;The watchdog may be resumed at runtime or its period changed by setting watchdogPeriodSeconds to a value &amp;gt;= 60:
&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;
		&lt;tbody &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-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;MongoDB Enterprise&amp;gt; db.runCommand({setParameter:1, watchdogPeriodSeconds : 120})&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;/li&gt;
&lt;/ul&gt;


&lt;p&gt;It is an error to set &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; at runtime if the server was not started with a value &amp;gt;= 60 at startup.&lt;/p&gt;

&lt;p&gt;The watchdog monitors the following directories:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;The &lt;tt&gt;--dbpath&lt;/tt&gt; directory&lt;/li&gt;
	&lt;li&gt;The &lt;tt&gt;--dbpath&lt;/tt&gt;/journal directory if the journal is enabled&lt;/li&gt;
	&lt;li&gt;The directory of &lt;tt&gt;--logpath&lt;/tt&gt; file&lt;/li&gt;
	&lt;li&gt;The directory of &lt;tt&gt;--auditPath&lt;/tt&gt; file&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;If any of these directories resides in an I/O subsystem and that I/O subsystem becomes unresponsive, the watchdog will detect such condition after sufficient time has passed, then terminate mongod tearing down all its threads and exiting the process with exit code &lt;tt&gt;61&lt;/tt&gt;. &lt;em&gt;The maximum time the watchdog can take to detect an unresponsive I/O subsystem is approximately twice the &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt;&lt;/em&gt;.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;IMPLEMENTATION DETAILS&lt;/b&gt;&lt;br/&gt;
It is implemented as a pair of threads in mongod that monitors various directories MongoDB uses to store data, and log files. One thread checks the monitored directories, and a second thread ensures that the first thread never gets stuck. The check thread runs at a fixed 10 second interval.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;DIAGNOSTICS&lt;/b&gt;&lt;br/&gt;
When enabled, the watchdog logs all changes to &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; at the default log level.&lt;/p&gt;

&lt;p&gt;When enabled at startup, the following message will appear in the logs:&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;
		&lt;tbody &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-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;CONTROL  [initandlisten] Starting Watchdog Monitor&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;If &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; is disabled or changed at runtime, messages like the following will appear in the logs:&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;
		&lt;tbody &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-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;CONTROL  [initandlisten] WatchdogMonitor disabled&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;CONTROL  [initandlisten] WatchdogMonitor period changed to 120s&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;At log level 1, the watchdog logs its periodic disk checks:&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;
		&lt;tbody &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-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;CONTROL  [watchdogCheck] Watchdog test &apos;checked directory &apos;/data/db/&apos;&apos; took 3ms&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;If the watchdog was enabled at startup, an additional section is added to the output of the serverStatus command output named &quot;watchdog&quot;.&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;
		&lt;tbody &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-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;MongoDB Enterprise &amp;gt; db.serverStatus()&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;        ...&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;        &quot;watchdog&quot; : {&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;                &quot;checkGeneration&quot; : NumberLong(2),&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;                &quot;monitorGeneration&quot; : NumberLong(0),&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;                &quot;monitorPeriod&quot; : 120&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;        },&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;        ...&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;The meaning of this data is:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;&lt;tt&gt;checkGeneration&lt;/tt&gt;: 64-bit signed integer; indicates the number of directory checks run since startup. It increments once for each directory checked. For example, if &lt;tt&gt;dbpath&lt;/tt&gt; and &lt;tt&gt;logpath&lt;/tt&gt; are specified, then this field is incremented twice every 10 seconds.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;monitorGeneration&lt;/tt&gt;: 64-bit signed integer; number of times the check thread has been checked for progress.&lt;/li&gt;
	&lt;li&gt;&lt;tt&gt;monitorPeriod&lt;/tt&gt;: 64-bit signed integer; the value of the &lt;tt&gt;watchdogPeriodSeconds&lt;/tt&gt; parameter.&lt;/li&gt;
&lt;/ul&gt;



&lt;p&gt;&lt;b&gt;TEST METHODOLOGY&lt;/b&gt;&lt;br/&gt;
We use &lt;a href=&quot;http://www.scylladb.com/2016/02/16/fault-injection-filesystem-software-testing/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;CharybdeFS&lt;/a&gt;, a Linux FUSE file system from ScyllaDB to create unresponsive I/O conditions and verify the storage watchdog detects them.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;h6&gt;&lt;a name=&quot;Originaldescription&quot;&gt;&lt;/a&gt;Original description&lt;/h6&gt;

&lt;p&gt;Implement a storage node watchdog for Linux.&lt;/p&gt;</description>
                <environment></environment>
        <key id="399792">SERVER-29947</key>
            <summary>Implement Storage Node Watchdog</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="mark.benvenuto@mongodb.com">Mark Benvenuto</assignee>
                                    <reporter username="mark.benvenuto@mongodb.com">Mark Benvenuto</reporter>
                        <labels>
                    </labels>
                <created>Fri, 30 Jun 2017 21:31:39 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:31 +0000</updated>
                            <resolved>Wed, 12 Jul 2017 14:15:44 +0000</resolved>
                                                    <fixVersion>3.2.16</fixVersion>
                    <fixVersion>3.4.7</fixVersion>
                    <fixVersion>3.5.10</fixVersion>
                                                        <votes>0</votes>
                                    <watches>16</watches>
                                                                                                                <comments>
                            <comment id="1621125" author="xgen-internal-githook" created="Thu, 13 Jul 2017 15:48:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Fix compile on Enterprise OSX by using osx instead of darwin&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/d3bd790df1209c0bc4ebe950715b526b35ae6129&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/d3bd790df1209c0bc4ebe950715b526b35ae6129&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1620698" author="xgen-internal-githook" created="Thu, 13 Jul 2017 04:11:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Fix compile on Enterprise OSX by using osx instead of darwin&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/ea3a9c12c07d0e56d3345bc753fd332e1e2b4dae&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/ea3a9c12c07d0e56d3345bc753fd332e1e2b4dae&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1620683" author="xgen-internal-githook" created="Thu, 13 Jul 2017 03:09:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 63379590ef6fad402b17464c8ca5ad4c09a626d3)&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/e597aee2136d8f539f7eea11e338dd19152770df&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/e597aee2136d8f539f7eea11e338dd19152770df&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1620682" author="xgen-internal-githook" created="Thu, 13 Jul 2017 03:09:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb333b92cae5e71affb0fe76cd388801afa8e79f)&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/390d7e7290ccc51e99c902a8344ef2e0c60001cb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/390d7e7290ccc51e99c902a8344ef2e0c60001cb&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1620676" author="xgen-internal-githook" created="Thu, 13 Jul 2017 02:39:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 63379590ef6fad402b17464c8ca5ad4c09a626d3)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/298869ac8df9186d599a1829e455ee559a3df45b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/298869ac8df9186d599a1829e455ee559a3df45b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1620675" author="xgen-internal-githook" created="Thu, 13 Jul 2017 02:39:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;/p&gt;

&lt;p&gt;(cherry picked from commit eb333b92cae5e71affb0fe76cd388801afa8e79f)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/a889b0d79a17eeed1f548a227e13ad553d1b32a2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/a889b0d79a17eeed1f548a227e13ad553d1b32a2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1619832" author="xgen-internal-githook" created="Wed, 12 Jul 2017 13:59:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/63379590ef6fad402b17464c8ca5ad4c09a626d3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/63379590ef6fad402b17464c8ca5ad4c09a626d3&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1619831" author="xgen-internal-githook" created="Wed, 12 Jul 2017 13:59:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;markbenvenuto&apos;, u&apos;name&apos;: u&apos;Mark Benvenuto&apos;, u&apos;email&apos;: u&apos;mark.benvenuto@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-29947&quot; title=&quot;Implement Storage Node Watchdog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-29947&quot;&gt;&lt;del&gt;SERVER-29947&lt;/del&gt;&lt;/a&gt; Implement Storage Node Watchdog&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/eb333b92cae5e71affb0fe76cd388801afa8e79f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/eb333b92cae5e71affb0fe76cd388801afa8e79f&lt;/a&gt;&lt;/p&gt;</comment>
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