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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-36189] Not able to Start or Repair Mongo Server</title>
                <link>https://jira.mongodb.org/browse/SERVER-36189</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hello, i have a problem trying to run the mongo server, or even trying to repair, the issue was originated by a power failure, i hope you can help me&lt;/p&gt;

&lt;p&gt;2018-07-17T12:03:20.008-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;main&amp;#93;&lt;/span&gt; Trying to start Windows service &apos;MongoDB&apos;&lt;br/&gt;
2018-07-17T12:03:20.009-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=460 port=27017 dbpath=c:/data/db 64-bit host=BasculaPTSLP&lt;br/&gt;
2018-07-17T12:03:20.009-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; targetMinOS: Windows 7/Windows Server 2008 R2&lt;br/&gt;
2018-07-17T12:03:20.009-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; db version v3.4.9&lt;br/&gt;
2018-07-17T12:03:20.009-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; git version: 876ebee8c7dd0e2d992f36a848ff4dc50ee6603e&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; OpenSSL version: OpenSSL 1.0.1u-fips 22 Sep 2016&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; allocator: tcmalloc&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; modules: enterprise &lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; build environment:&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distmod: windows-64&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distarch: x86_64&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; target_arch: x86_64&lt;br/&gt;
2018-07-17T12:03:20.010-0500 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; options: { service: true, storage: &lt;/p&gt;
{ dbPath: &quot;c:/data/db&quot; }
&lt;p&gt;, systemLog: { destination: &quot;file&quot;, path: &quot;c:/data/logs/log.txt&quot; } }&lt;br/&gt;
2018-07-17T12:03:20.011-0500 I - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Detected data files in c:/data/db created by the &apos;wiredTiger&apos; storage engine, so setting the active storage engine to &apos;wiredTiger&apos;.&lt;br/&gt;
2018-07-17T12:03:20.012-0500 I STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; wiredtiger_open config: create,cache_size=1480M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),&lt;br/&gt;
2018-07-17T12:03:21.181-0500 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger error (0) &lt;span class=&quot;error&quot;&gt;&amp;#91;1531847001:181658&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;460:2002465664&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file:WiredTiger.wt&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:WiredTiger.wt&lt;/a&gt;, WT_CURSOR.next: read checksum error for 20480B block at offset 81920: block header checksum of 1936024125 doesn&apos;t match expected checksum of 1413986004&lt;br/&gt;
2018-07-17T12:03:21.181-0500 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger error (0) &lt;span class=&quot;error&quot;&gt;&amp;#91;1531847001:181658&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;460:2002465664&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file:WiredTiger.wt&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:WiredTiger.wt&lt;/a&gt;, WT_CURSOR.next: WiredTiger.wt: encountered an illegal file format or internal value&lt;br/&gt;
2018-07-17T12:03:21.181-0500 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger error (-31804) &lt;span class=&quot;error&quot;&gt;&amp;#91;1531847001:181658&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;460:2002465664&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file:WiredTiger.wt&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:WiredTiger.wt&lt;/a&gt;, WT_CURSOR.next: the process must exit and restart: WT_PANIC: WiredTiger library panic&lt;br/&gt;
2018-07-17T12:03:21.181-0500 I - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Fatal Assertion 28558 at src\mongo\db\storage\wiredtiger\wiredtiger_util.cpp 361&lt;br/&gt;
2018-07-17T12:03:21.181-0500 I - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;***aborting after fassert() failure&lt;/p&gt;</description>
                <environment></environment>
        <key id="573089">SERVER-36189</key>
            <summary>Not able to Start or Repair Mongo Server</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="nick.brewer">Nick Brewer</assignee>
                                    <reporter username="j_velazqueza">Jorge Luis Velazquez</reporter>
                        <labels>
                            <label>envns</label>
                            <label>rpo</label>
                            <label>rps</label>
                            <label>trcf</label>
                            <label>wtc</label>
                    </labels>
                <created>Thu, 19 Jul 2018 02:39:49 +0000</created>
                <updated>Fri, 27 Jul 2018 15:35:52 +0000</updated>
                            <resolved>Thu, 19 Jul 2018 20:22:44 +0000</resolved>
                                    <version>3.4.9</version>
                                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1951736" author="nick.brewer" created="Thu, 19 Jul 2018 20:22:28 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=j_velazqueza&quot; class=&quot;user-hover&quot; rel=&quot;j_velazqueza&quot;&gt;j_velazqueza&lt;/a&gt; Glad to hear it&apos;s working. &lt;/p&gt;

&lt;p&gt;To prevent this type of problem in the future please take note of the following guidelines to help mitigate any issues related to unreliable storage layers or server failures:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Make sure your &lt;a href=&quot;https://docs.mongodb.com/manual/administration/production-notes/#disk-and-storage-systems&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;underlying storage is configured in an optimal way&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;Schedule and perform regular checks of the integrity of your filesystems and disks.&lt;/li&gt;
	&lt;li&gt;Make sure to update MongoDB to the &lt;a href=&quot;https://docs.mongodb.com/manual/release-notes/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;most recent version&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;Never manipulate the underlying database files in any way while &lt;tt&gt;mongod&lt;/tt&gt; is running.&lt;/li&gt;
	&lt;li&gt;Always keep up to date &lt;a href=&quot;https://docs.mongodb.com/manual/core/backups/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;backups of your databases&lt;/a&gt; and verify that you have a process in place to restore them.&lt;/li&gt;
	&lt;li&gt;Use a &lt;a href=&quot;https://docs.mongodb.com/manual/replication/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;replica set&lt;/a&gt; for improved reliability.&lt;br/&gt;
,&lt;br/&gt;
-Nick&lt;/li&gt;
&lt;/ul&gt;
</comment>
                            <comment id="1951700" author="j_velazqueza" created="Thu, 19 Jul 2018 20:01:31 +0000"  >&lt;p&gt;Nick, i was able to Repair the Server, with the files that you send me.&lt;br/&gt;
Thank you so much.&lt;/p&gt;

&lt;p&gt;Regards.&lt;/p&gt;</comment>
                            <comment id="1951401" author="nick.brewer" created="Thu, 19 Jul 2018 16:40:07 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=j_velazqueza&quot; class=&quot;user-hover&quot; rel=&quot;j_velazqueza&quot;&gt;j_velazqueza&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;I&apos;ve attached the files after a repair attempt. Would you please extract these files, substitute them for the current ones in your $dbpath, and let us know if it resolves the issue?&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Nick&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/attachment/192160/192160_repair-attempt.tar.gz&quot; title=&quot;repair-attempt.tar.gz attached to SERVER-36189&quot;&gt;repair-attempt.tar.gz&lt;sup&gt;&lt;img class=&quot;rendericon&quot; src=&quot;https://jira.mongodb.org/images/icons/link_attachment_7.gif&quot; height=&quot;7&quot; width=&quot;7&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/sup&gt;&lt;/a&gt;&lt;/span&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="1951385" author="j_velazqueza" created="Thu, 19 Jul 2018 16:26:51 +0000"  >&lt;p&gt;thank you for you response Nick, already attached the correct file.&lt;br/&gt;
Regards.&lt;/p&gt;</comment>
                            <comment id="1951328" author="nick.brewer" created="Thu, 19 Jul 2018 15:46:31 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=j_velazqueza&quot; class=&quot;user-hover&quot; rel=&quot;j_velazqueza&quot;&gt;j_velazqueza&lt;/a&gt; Could you upload the &lt;tt&gt;WiredTiger.wt&lt;/tt&gt; file as well? I can see you attached a file simply called &lt;tt&gt;WiredTiger&lt;/tt&gt; here but it doesn&apos;t contain much data.&#160;&lt;/p&gt;

&lt;p&gt;Thanks,&lt;/p&gt;

&lt;p&gt;Nick&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="192097" name="WiredTiger" size="49" author="j_velazqueza" created="Thu, 19 Jul 2018 02:39:43 +0000"/>
                            <attachment id="192096" name="WiredTiger.turtle" size="1011" author="j_velazqueza" created="Thu, 19 Jul 2018 02:39:43 +0000"/>
                            <attachment id="192154" name="WiredTiger.wt" size="102400" author="j_velazqueza" created="Thu, 19 Jul 2018 16:26:24 +0000"/>
                            <attachment id="192160" name="repair-attempt.tar.gz" size="3932" author="nick.brewer" created="Thu, 19 Jul 2018 16:40:04 +0000"/>
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