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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>
    </build-info>


<item>
            <title>[SERVER-50788] mongod can not start :   file:WiredTiger.wt, connection: read checksum error</title>
                <link>https://jira.mongodb.org/browse/SERVER-50788</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;2020-09-08T14:25:38.319+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; MongoDB starting : pid=25998 port=27018 dbpath=/data/db 64-bit host=server&lt;br/&gt;
2020-09-08T14:25:38.320+0800 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;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; git version: 876ebee8c7dd0e2d992f36a848ff4dc50ee6603e&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; allocator: tcmalloc&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; modules: none&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; build environment:&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distmod: rhel70&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; distarch: x86_64&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; target_arch: x86_64&lt;br/&gt;
2020-09-08T14:25:38.320+0800 I CONTROL &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; options: { config: &quot;/usr/local/mongodb/bin/rs3_member.conf&quot;, net: { bindIp: &quot;10.62.124.60&quot;, port: 27018, ssl: &lt;/p&gt;
{ CAFile: &quot;/usr/local/mongodb/CAfiles/root.pem&quot;, PEMKeyFile: &quot;/usr/local/mongodb/CAfiles/server.pem&quot;, allowInvalidHostnames: true, mode: &quot;requireSSL&quot; }
&lt;p&gt; }, processManagement: { fork: true }, repair: true, replication: { enableMajorityReadConcern: true, oplogSizeMB: 20480, replSetName: &quot;rs3&quot; }, security: { authorization: &quot;enabled&quot;, clusterAuthMode: &quot;x509&quot;, keyFile: &quot;/usr/local/mongodb/authentication/keyFile&quot; }, sharding: { archiveMovedChunks: false, clusterRole: &quot;shardsvr&quot; }, storage: { dbPath: &quot;/data/db&quot;, directoryPerDB: true, engine: &quot;wiredTiger&quot;, journal: &lt;/p&gt;
{ enabled: false }
&lt;p&gt; }, systemLog: { destination: &quot;file&quot;, logAppend: true, logRotate: &quot;rename&quot;, path: &quot;/data/log/mongodb.log&quot;, verbosity: 0 } }&lt;br/&gt;
2020-09-08T14:25:38.490+0800 I STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; Detected WT journal files. Running recovery from last checkpoint.&lt;br/&gt;
2020-09-08T14:25:38.490+0800 I STORAGE &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; journal to nojournal transition config: create,cache_size=63749M,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;
2020-09-08T14:25:38.502+0800 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;1599546338:502169&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;25998:0x7f66aa37de40&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: read checksum error for 4096B block at offset 401408: block header checksum of 1071605299 doesn&apos;t match expected checksum of 1242809853&lt;br/&gt;
2020-09-08T14:25:38.502+0800 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;1599546338:502193&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;25998:0x7f66aa37de40&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.wt: encountered an illegal file format or internal value&lt;br/&gt;
2020-09-08T14:25:38.502+0800 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;1599546338:502203&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;25998:0x7f66aa37de40&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: the process must exit and restart: WT_PANIC: WiredTiger library panic&lt;br/&gt;
2020-09-08T14:25:38.502+0800 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;
2020-09-08T14:25:38.502+0800 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>x86_64</environment>
        <key id="1465399">SERVER-50788</key>
            <summary>mongod can not start :   file:WiredTiger.wt, connection: read checksum 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="dmitry.agranat@mongodb.com">Dmitry Agranat</assignee>
                                    <reporter username="1554154677@qq.com">lxh lxh</reporter>
                        <labels>
                            <label>FA_28558</label>
                    </labels>
                <created>Tue, 8 Sep 2020 11:53:07 +0000</created>
                <updated>Fri, 11 Sep 2020 01:25:50 +0000</updated>
                            <resolved>Thu, 10 Sep 2020 13:12:55 +0000</resolved>
                                    <version>3.4.9</version>
                                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="3386705" author="JIRAUSER1256830" created="Fri, 11 Sep 2020 01:25:50 +0000"  >&lt;p&gt;I got your suggestion. Anyway, I really appreciate your timely help !&lt;/p&gt;</comment>
                            <comment id="3385061" author="dmitry.agranat" created="Thu, 10 Sep 2020 13:12:38 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=1554154677%40qq.com&quot; class=&quot;user-hover&quot; rel=&quot;1554154677@qq.com&quot;&gt;1554154677@qq.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;The error message you are receiving indicates that there is an additional corruption. Unfortunately, we do not have any automated process to recover data from this situation. &lt;/p&gt;

&lt;p&gt;To avoid a problem like this in the future, it is our strong recommendation to:&lt;/p&gt;
&lt;ul&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;.&lt;/li&gt;
	&lt;li&gt;Use 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;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;.&lt;/li&gt;
	&lt;li&gt;Have a process in place to restore backups.&lt;/li&gt;
	&lt;li&gt;Follow all &lt;a href=&quot;https://docs.mongodb.com/manual/administration/production-notes/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;production notes&lt;/a&gt;, especially those for &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 systems&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;Never manipulate the underlying database files in any way.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Regards,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3384899" author="JIRAUSER1256830" created="Thu, 10 Sep 2020 10:55:58 +0000"  >&lt;p&gt;Thank you for your help !&#160; It did&#160; not work after&#160;replacing the two files, but the error&#160;message changed:&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;2020-09-10T18:47:24.930+0800 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;1599734844:930719&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;22429:0x7f7cb61e8e40&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file://sizestorer.wt/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:sizeStorer.wt&lt;/a&gt;, WT_SESSION.open_cursor: read checksum error for 4096B block at offset 24576: block header checksum of 394736567 doesn&apos;t match expected checksum of 1046701883&lt;br/&gt;
 2020-09-10T18:47:24.930+0800 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;1599734844:930762&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;22429:0x7f7cb61e8e40&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file://sizestorer.wt/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:sizeStorer.wt&lt;/a&gt;, WT_SESSION.open_cursor: sizeStorer.wt: encountered an illegal file format or internal value&lt;br/&gt;
 2020-09-10T18:47:24.930+0800 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;1599734844:930776&amp;#93;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;22429:0x7f7cb61e8e40&amp;#93;&lt;/span&gt;, &lt;a href=&quot;file://sizestorer.wt/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;file:sizeStorer.wt&lt;/a&gt;, WT_SESSION.open_cursor: the process must exit and restart: WT_PANIC: WiredTiger library panic&lt;br/&gt;
 2020-09-10T18:47:24.930+0800 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;
 2020-09-10T18:47:24.930+0800 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&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;The wrong file changes to sizeStorer.wt and I have&#160;attached it in the&#160;attachments. Can it be repaired?&#160;&lt;/p&gt;</comment>
                            <comment id="3384821" author="dmitry.agranat" created="Thu, 10 Sep 2020 09:37:45 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=1554154677%40qq.com&quot; class=&quot;user-hover&quot; rel=&quot;1554154677@qq.com&quot;&gt;1554154677@qq.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;I&apos;ve attached a repair attempt of the files you provided as &lt;span class=&quot;nobr&quot;&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/attachment/277658/277658_repair_attempt_SERVER-50788.zip&quot; title=&quot;repair_attempt_SERVER-50788.zip attached to SERVER-50788&quot;&gt;repair_attempt_SERVER-50788.zip&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;. Please extract these files, replace them in your &lt;tt&gt;$dbpath&lt;/tt&gt;, and let us know if it resolves the issue.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3384718" author="JIRAUSER1256830" created="Thu, 10 Sep 2020 07:31:07 +0000"  >&lt;p&gt;The Secondary is a new node and it needs to resync data from the Primary. So the key point is to restore the Primary.&lt;/p&gt;

&lt;p&gt;Also, if --repair, it needs to update to 4.0+ and then the whole mongodb cluste may take a long time. I could not wait.&lt;/p&gt;

&lt;p&gt;For the log saying &quot; &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: read checksum error for 4096B block at offset 401408: block header checksum of 1071605299 doesn&apos;t match expected checksum of 1242809853&quot;, map you help repair the WiredTiger.wt file in the attachments? As the follows repair_attempt.tar.gz&#65306;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46728&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-46728&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;Thx.&lt;/p&gt;</comment>
                            <comment id="3381633" author="dmitry.agranat" created="Wed, 9 Sep 2020 09:45:27 +0000"  >&lt;p&gt;Basically, you need to do a &lt;a href=&quot;https://docs.mongodb.com/manual/tutorial/perform-maintence-on-replica-set-members/index.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Maintenance on a Replica Set Member&lt;/a&gt; where you start a member as a standalone, do maintenance (in this case, a --repair) and restart it as a Replica Set member. Please let me know how it goes.&lt;/p&gt;

&lt;p&gt;Also, based on the provided logs, it seems that only Primary hit this issue. I did not see any issues with the Secondary.&lt;/p&gt;</comment>
                            <comment id="3381609" author="JIRAUSER1256830" created="Wed, 9 Sep 2020 09:20:30 +0000"  >&lt;p&gt;Yes ,I did but the&#160;replica set can&apos;t start so the node can&apos;t be removed by the command &quot;rs.remove&quot;. Is there any other way to remove the node from&#160;the&#160;replica set ? Thx.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;In case , all the mongod log files are uploaded.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</comment>
                            <comment id="3381578" author="dmitry.agranat" created="Wed, 9 Sep 2020 08:53:56 +0000"  >&lt;p&gt;Yes, --repair should be done against a standalone node which is being removed from a replica set for this procedure. Did you try doing this?&lt;br/&gt;
Can you upload compressed &lt;tt&gt;mongod&lt;/tt&gt; logs from all members to the provided secure upload portal?&lt;/p&gt;</comment>
                            <comment id="3381562" author="JIRAUSER1256830" created="Wed, 9 Sep 2020 08:35:17 +0000"  >&lt;p&gt;Hi Dima,&lt;/p&gt;

&lt;p&gt;Because all the 3-node mongod process start failed after unexpected shutdown, it can not&#160;resync from the primary node.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;About&#160;&#160;&lt;a href=&quot;https://docs.mongodb.com/manual/reference/program/mongod/#cmdoption-mongod-repair&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;mongod --repair&lt;/tt&gt;&lt;/a&gt;&#160; , it can not be used by&#160;replica set. Do I understand wrongly?&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;In case, I&#160; tried to restore the WiredTiger files by the WiredTiger tool ,and the command is &quot; ./wt -v -h /data/bak -C &quot;extensions=&lt;span class=&quot;error&quot;&gt;&amp;#91;./ext/compressors/snappy/.libs/libwiredtiger_snappy.so&amp;#93;&lt;/span&gt;&quot; -R salvage collection-38878&#8211;7827210234374637134.wt&quot;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Finally&#65292;the files are uploaded.&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;By the way&#65292;I&#160; saw other people&apos;s&#160; solved question the same as mine&#65292;as the follows&#65306;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46728&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/SERVER-46728&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;

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

&lt;p&gt;lxh&lt;/p&gt;</comment>
                            <comment id="3381530" author="dmitry.agranat" created="Wed, 9 Sep 2020 07:22:35 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=1554154677%40qq.com&quot; class=&quot;user-hover&quot; rel=&quot;1554154677@qq.com&quot;&gt;1554154677@qq.com&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;As MongoDB 3.4 has reached EOL, we can try to assist you as a one-time exception.&lt;/p&gt;

&lt;p&gt;Your configuration shows a 3-node replica set. The ideal resolution is to perform 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 an unaffected node. In the event a resync of the failed member fails, please provide the logs covering this resync time&lt;/p&gt;

&lt;p&gt;You can also try &lt;a href=&quot;https://docs.mongodb.com/manual/reference/program/mongod/#cmdoption-mongod-repair&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;mongod --repair&lt;/tt&gt;&lt;/a&gt; using the latest version of MongoDB.&lt;/p&gt;

&lt;p&gt;In the event that a &lt;tt&gt;--repair&lt;/tt&gt; operation is unsuccessful, then please also provide:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;The logs of the repair operation.&lt;/li&gt;
	&lt;li&gt;The logs of any attempt to start mongod after the repair operation completed.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;When you said:&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;I had tried to restore the WiredTiger files but failed&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;Could you please clarify what &quot;restore&quot; means here (detailed steps)?&lt;/p&gt;

&lt;p&gt;In case you need to upload mongod logs, I&apos;ve created a secure &lt;a href=&quot;https://10gen-httpsupload.s3.amazonaws.com/upload_forms/a07e444a-3622-4279-b9b3-46513eb8c16e.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;upload portal&lt;/a&gt; for you. Files uploaded to this portal are visible only to MongoDB employees and are routinely deleted after some time. &lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3381388" author="JIRAUSER1256830" created="Wed, 9 Sep 2020 02:52:41 +0000"  >&lt;p&gt;Thank you! I had tried to restore the WiredTiger files but failed, so I really need your help emergently for the broken product server.&lt;/p&gt;</comment>
                            <comment id="3378127" author="tim.fogarty" created="Tue, 8 Sep 2020 12:00:11 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=1554154677%40qq.com&quot; class=&quot;user-hover&quot; rel=&quot;1554154677@qq.com&quot;&gt;1554154677@qq.com&lt;/a&gt;, I&apos;m moving this ticket to the SERVER project where we deal with errors related to mongod.&lt;/p&gt;</comment>
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