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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-28790] Mongo does not start with current dataset</title>
                <link>https://jira.mongodb.org/browse/SERVER-28790</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Having used Mongo many times before I am having issues starting up Mongo with a particular dataset.&lt;/p&gt;

&lt;p&gt;I have included all wiredtiger files and the mongo log and would really appreciate if you could investigate this isssue asap.&lt;/p&gt;</description>
                <environment>Windows Server 2012 R2</environment>
        <key id="373824">SERVER-28790</key>
            <summary>Mongo does not start with current dataset</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="kelsey.schubert@mongodb.com">Kelsey Schubert</assignee>
                                    <reporter username="kal0007">Kal</reporter>
                        <labels>
                            <label>envns</label>
                            <label>rfi</label>
                            <label>trcf</label>
                            <label>wtc</label>
                    </labels>
                <created>Thu, 13 Apr 2017 16:10:40 +0000</created>
                <updated>Mon, 13 Aug 2018 19:21:29 +0000</updated>
                            <resolved>Tue, 2 May 2017 21:32:11 +0000</resolved>
                                    <version>3.4.3</version>
                                                    <component>Internal Code</component>
                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1562975" author="thomas.schubert" created="Tue, 2 May 2017 21:32:11 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kal0007&quot; class=&quot;user-hover&quot; rel=&quot;kal0007&quot;&gt;kal0007&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;From your responses, I do not see anything to indicate a bug in the MongoDB server. For MongoDB-related support, please see our &lt;a href=&quot;https://docs.mongodb.org/manual/support&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Technical Support page&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Thank you,&lt;br/&gt;
Thomas &lt;/p&gt;</comment>
                            <comment id="1552588" author="kal0007" created="Wed, 19 Apr 2017 14:55:03 +0000"  >&lt;p&gt;1. The disks are SSD&apos;s, we are not using RAID &lt;br/&gt;
2. The disk was corrupt, when Windows ran the disk recover, it corrupted the mongo DB files&lt;br/&gt;
3. Yes, the same version of MongoDB has been running&lt;br/&gt;
4. No I haven&apos;t but Windows Recovery may have copied or moved files&lt;br/&gt;
5. We don&apos;t have any backups&lt;br/&gt;
6. See above&lt;br/&gt;
7. The file system was check on 13/04/17 when windows ran the recovery.&lt;/p&gt;

&lt;p&gt;I can supply you the database files if required as we have a very high profile customer waiting for this fix.&lt;/p&gt;</comment>
                            <comment id="1549924" author="mark.agarunov" created="Fri, 14 Apr 2017 22:44:52 +0000"  >&lt;p&gt;Hello &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kal0007&quot; class=&quot;user-hover&quot; rel=&quot;kal0007&quot;&gt;kal0007&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;I have a few additional questions about data storage and the configuration of your environment to help us understand what&apos;s going on here. However, beware in these sorts of situations it can be difficult to understand the cause of the corruption without a straightforward reproduction.&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;What kind of underlying storage mechanism are you using? Are the storage devices attached locally or over the network? Are the disks SSDs or HDDs? What kind of RAID and/or volume management system are you using?&lt;/li&gt;
	&lt;li&gt;Would you please check the integrity of your disks?&lt;/li&gt;
	&lt;li&gt;Has the database always been running this version of MongoDB? If not please describe the upgrade/downgrade cycles the database has been through.&lt;/li&gt;
	&lt;li&gt;Have you manipulated (copied or moved) the underlying database files? If so, was mongod running?&lt;/li&gt;
	&lt;li&gt;Have you ever restored this instance from backups?&lt;/li&gt;
	&lt;li&gt;What method do you use to create backups?&lt;/li&gt;
	&lt;li&gt;When was the underlying filesystem last check and is it currently marked clean?&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;Thanks,&lt;br/&gt;
Mark&lt;/p&gt;</comment>
                            <comment id="1549671" author="mark.agarunov" created="Fri, 14 Apr 2017 19:00:51 +0000"  >&lt;p&gt;Hello &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kal0007&quot; class=&quot;user-hover&quot; rel=&quot;kal0007&quot;&gt;kal0007&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thank you for the report. Unfortunately the error in the logs indicates that there was likely corruption in the underlying storage layer. I would recommend a clean &lt;a href=&quot;https://docs.mongodb.org/manual/tutorial/resync-replica-set-member/#automatically-sync-a-member&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resync&lt;/a&gt; from a node that is not affected or restoring from a backup.&lt;br/&gt;
Additionally, please consider doing a thorough integrity check of the affected node&apos;s disk drives. If the failures continue to persist, you may need to replace them.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Mark&lt;/p&gt;</comment>
                    </comments>
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                            <attachment id="153989" name="WiredTiger" size="46" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
                            <attachment id="153988" name="WiredTiger.basecfg" size="533" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
                            <attachment id="153987" name="WiredTiger.lock" size="21" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
                            <attachment id="153986" name="WiredTiger.turtle" size="723" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
                            <attachment id="153985" name="WiredTiger.wt" size="4096" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
                            <attachment id="153991" name="mongo.log" size="14634" author="kal0007" created="Thu, 13 Apr 2017 16:04:34 +0000"/>
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