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    <title>MongoDB Jira</title>
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    <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-37737] WT_ERROR non-specific WiredTiger error</title>
                <link>https://jira.mongodb.org/browse/SERVER-37737</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After an unclean shutdown, Mongo fails to start. I cannot provide WiredTiger.turtle or WiredTiger.wt. Is there any way to recover? Error logs below&lt;/p&gt;

&lt;p&gt;rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=1 port=27017 dbpath=/data/db 64-bit host=5675ebccdadc&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; db version v3.2.21&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; git version: 1ab1010737145ba3761318508ff65ba74dfe8155&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; OpenSSL version: OpenSSL 1.0.1t 3 May 2016&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; allocator: tcmalloc&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; modules: none&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; build environment:&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distmod: debian81&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distarch: x86_64&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; target_arch: x86_64&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.016+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; options: { replication: &lt;/p&gt;
{ oplogSizeMB: 128, replSet: &quot;rs0&quot; }
&lt;p&gt;, storage: { mmapv1: &lt;/p&gt;
{ smallFiles: true }
&lt;p&gt; } }&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.043+0000 I - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Detected data files in /data/db created by the &apos;wiredTiger&apos; storage engine, so setting the active storage engine to &apos;wiredTiger&apos;.&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.045+0000 W - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Detected unclean shutdown - /data/db/mongod.lock is not empty.&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.050+0000 W STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Recovering data from the last clean checkpoint.&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.050+0000 I STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; wiredtiger_open config: create,cache_size=17G,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),verbose=(recovery_progress),&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.115+0000 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger (-31802) &lt;span class=&quot;error&quot;&gt;&amp;#91;1540406844:115295&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;1:0x7f5d9c3efcc0&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;, connection: unable to read root page from &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_ERROR: non-specific WiredTiger error&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.115+0000 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger (0) &lt;span class=&quot;error&quot;&gt;&amp;#91;1540406844:115356&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;1:0x7f5d9c3efcc0&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;, connection: WiredTiger has failed to open its metadata&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.115+0000 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger (0) &lt;span class=&quot;error&quot;&gt;&amp;#91;1540406844:115373&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;1:0x7f5d9c3efcc0&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;, connection: This may be due to the database files being encrypted, being from an older version or due to corruption on disk&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.115+0000 E STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; WiredTiger (0) &lt;span class=&quot;error&quot;&gt;&amp;#91;1540406844:115386&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;1:0x7f5d9c3efcc0&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;, connection: You should confirm that you have opened the database with the correct options including all encryption and compression options&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.125+0000 I - &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Assertion: 28595:-31802: WT_ERROR: non-specific WiredTiger error&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.126+0000 I STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; exception in initAndListen: 28595 -31802: WT_ERROR: non-specific WiredTiger error, terminating&lt;br/&gt;
rocketchat_mongo.1.tx30eimlae23@host.domain.com | 2018-10-24T18:47:24.126+0000 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; dbexit: rc: 100&lt;/p&gt;</description>
                <environment></environment>
        <key id="623611">SERVER-37737</key>
            <summary>WT_ERROR non-specific WiredTiger error</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="daniel.hatcher@mongodb.com">Danny Hatcher</assignee>
                                    <reporter username="wing_walker">Rafael Oceguera</reporter>
                        <labels>
                            <label>wtc</label>
                    </labels>
                <created>Wed, 24 Oct 2018 18:52:47 +0000</created>
                <updated>Thu, 25 Oct 2018 20:39:36 +0000</updated>
                            <resolved>Thu, 25 Oct 2018 20:39:28 +0000</resolved>
                                    <version>3.2.21</version>
                                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="2042620" author="daniel.hatcher" created="Thu, 25 Oct 2018 20:39:06 +0000"  >&lt;p&gt;Hello Rafael,&lt;/p&gt;

&lt;p&gt;Unfortunately, this error indicates that there was corruption on the disk, most often caused by a faulty storage layer. In this situation, our best recommendation would be to &lt;a href=&quot;https://docs.mongodb.com/manual/tutorial/resync-replica-set-member/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;resync the affected node&lt;/a&gt; or &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;restore from a backup&lt;/a&gt; if possible.&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;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Thank you,&lt;/p&gt;

&lt;p&gt;Danny&lt;/p&gt;</comment>
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