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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>[DOCS-8860] EBS volumes should be initialised after creating from the snapshot before starting the {{mongod}} process</title>
                <link>https://jira.mongodb.org/browse/DOCS-8860</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;As per the AWS docs: &lt;br/&gt;
&lt;a href=&quot;http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-initialize.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Initializing Amazon EBS Volumes&lt;/a&gt;, &lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;For a new volume created from a snapshot, you should read all the blocks that have data before using the volume.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;If the volumes are not initialised, it may take several minutes to several hours for the &lt;tt&gt;mongod&lt;/tt&gt; instance to start. &lt;/p&gt;

&lt;p&gt;This generally affects MongoDB 3.2 with WiredTiger which samples the oplog while starting (see &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19551&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;SERVER-19551&lt;/a&gt;). However, it should be better to have the volume initialised in all versions as the data anyways has to be read from disk and the process will be slow for uninitialised volumes.&lt;/p&gt;

&lt;p&gt;Information regarding this behaviour should be good to have in either of these MongoDB docs:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://docs.mongodb.com/ecosystem/platforms/amazon-ec2/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/ecosystem/platforms/amazon-ec2/&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;&lt;a href=&quot;https://docs.mongodb.com/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/ecosystem/tutorial/backup-and-restore-mongodb-on-amazon-ec2/&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;b&gt;Related tickets:&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;Help: &lt;a href=&quot;https://jira.mongodb.org/browse/HELP-2705&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/HELP-2705&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="318773">DOCS-8860</key>
            <summary>EBS volumes should be initialised after creating from the snapshot before starting the {{mongod}} process</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="13203">Gone away</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="ankur.raina@mongodb.com">Ankur Raina</reporter>
                        <labels>
                            <label>request</label>
                    </labels>
                <created>Mon, 26 Sep 2016 10:22:49 +0000</created>
                <updated>Tue, 23 Jan 2024 16:38:43 +0000</updated>
                            <resolved>Tue, 23 Jan 2024 16:38:43 +0000</resolved>
                                                                    <component>Atlas</component>
                    <component>ecosystem</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="6034868" author="JIRAUSER1270801" created="Tue, 23 Jan 2024 16:38:43 +0000"  >&lt;p&gt;these pages don&apos;t exist anymore&lt;/p&gt;</comment>
                            <comment id="1393291" author="emily.hall" created="Mon, 26 Sep 2016 12:06:48 +0000"  >&lt;p&gt;Assigning to &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jonathan.destefano&quot; class=&quot;user-hover&quot; rel=&quot;jonathan.destefano&quot;&gt;jonathan.destefano&lt;/a&gt; for grooming.&lt;br/&gt;
cc: &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kay.kim&quot; class=&quot;user-hover&quot; rel=&quot;kay.kim&quot;&gt;kay.kim&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1393265" author="ankur.raina" created="Mon, 26 Sep 2016 10:27:04 +0000"  >&lt;p&gt;I raised this by mistake in this project and was unable to move to DOCS. Please move if possible and also close &lt;a href=&quot;https://jira.mongodb.org/browse/DEPM-179&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;DEPM-179&lt;/a&gt; which got created as a clone of this ticket. I apologise for the trouble.&lt;/p&gt;</comment>
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