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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-5273] Corrupted database list on a Mongo Server.</title>
                <link>https://jira.mongodb.org/browse/SERVER-5273</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When I use the command line mongo environment and run show dbs it returns this message.&lt;/p&gt;

&lt;p&gt;Fri Mar 09 16:22:14 decode failed. probably invalid utf-8 string &lt;span class=&quot;error&quot;&gt;&amp;#91;&#199;&amp;#93;&lt;/span&gt;&lt;br/&gt;
Fri Mar 09 16:22:14      why: TypeError: malformed UTF-8 character sequence at o&lt;br/&gt;
ffset 0&lt;br/&gt;
Fri Mar 09 16:22:14 Error: invalid utf8 shell/utils.js:1108&lt;/p&gt;

&lt;p&gt;So I used the web interface to look closer at the data when I did list databases (&lt;a href=&quot;http://10.1.50.21:15002/listDatabases?text=1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://10.1.50.21:15002/listDatabases?text=1&lt;/a&gt;) it returns the normal databases correctly, then there are 1462 entries that look like this:&lt;/p&gt;

&lt;p&gt;    &lt;/p&gt;
{ &quot;name&quot; : &quot;*&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;1&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;10&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;2&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;3&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;4&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;4images&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;5&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;6&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;7&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;8&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;br/&gt;
    &lt;/p&gt;
{ &quot;name&quot; : &quot;9&quot;,
      &quot;sizeOnDisk&quot; : 1,
      &quot;empty&quot; : true }
&lt;p&gt;, &lt;/p&gt;

&lt;p&gt;I don&apos;t know if something in our code messed up and created these or if something internal in mongo did it.&lt;/p&gt;

&lt;p&gt;When I do a use admin then &amp;gt; db.databases.find().  It returns a list that is only the real databases.&lt;/p&gt;

&lt;p&gt;We&apos;ve got replica sets and sharding.  The list appears the same on all shard.&lt;/p&gt;

&lt;p&gt;Any Ideas what is going on and how to fix it?  This is a production system and is running fine so far, but this definitely worries me.&lt;/p&gt;</description>
                <environment>debian squeeze running Mongo 1.8.2</environment>
        <key id="32637">SERVER-5273</key>
            <summary>Corrupted database list on a 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="4">Incomplete</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="dbailey62">Donny Bailey</reporter>
                        <labels>
                    </labels>
                <created>Fri, 9 Mar 2012 21:31:59 +0000</created>
                <updated>Wed, 15 Aug 2012 14:24:19 +0000</updated>
                            <resolved>Fri, 15 Jun 2012 13:39:42 +0000</resolved>
                                    <version>1.8.2</version>
                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="97452" author="scotthernandez" created="Sat, 10 Mar 2012 02:01:34 +0000"  >&lt;p&gt;Are you a CS customer? Do you need this escalated via that support contract?&lt;/p&gt;</comment>
                            <comment id="97415" author="scotthernandez" created="Fri, 9 Mar 2012 23:50:54 +0000"  >&lt;p&gt;It sounds like you might have accidentally created some dbs with chars that javascript can&apos;t print/decode.&lt;/p&gt;

&lt;p&gt;Also, for the dump you only need to run &lt;tt&gt;mongodump -h 10.1.50.21:14001 -d config&lt;/tt&gt; and it will just dump that db in a dump/config directory with files for each collection.&lt;/p&gt;</comment>
                            <comment id="97413" author="dbailey62" created="Fri, 9 Mar 2012 23:40:03 +0000"  >&lt;p&gt;All 6 shards return the same error when I run show dbs&lt;/p&gt;

&lt;p&gt;Fri Mar 09 18:36:18 decode failed. probably invalid utf-8 string &lt;span class=&quot;error&quot;&gt;&amp;#91;&#199;&amp;#93;&lt;/span&gt;&lt;br/&gt;
Fri Mar 09 18:36:18      why: TypeError: malformed UTF-8 character sequence at offset 0&lt;br/&gt;
Fri Mar 09 18:36:18 Error: invalid utf8 shell/utils.js:1108&lt;/p&gt;

&lt;p&gt;I&apos;m dumping the config database now with the following command:&lt;br/&gt;
mongodump -h 10.1.50.21:14001 -d config --directoryperdb -out Config.out&lt;/p&gt;

&lt;p&gt;I&apos;ll forward it when it&apos;s complete.&lt;/p&gt;

&lt;p&gt;Donny Bailey&lt;br/&gt;
Senior Program Developer&lt;/p&gt;

&lt;p&gt;OrcaTec LLC&lt;br/&gt;
3200 Cobb Galleria Parkway, Suite 200, Atlanta, GA 30339&lt;br/&gt;
Tel:  770.650.7706 Ext 337  |  Mob:  404.550.7035  | Fax:  678.306.1856  &lt;br/&gt;
Email:  Donny.Bailey@OrcaTec.com &lt;/p&gt;


&lt;p&gt;Visualize a New Concept in Document Decisioning&lt;/p&gt;

</comment>
                            <comment id="97409" author="scotthernandez" created="Fri, 9 Mar 2012 23:26:59 +0000"  >&lt;p&gt;Can you dump your config database with mongodump and attach it? Also, please run this on each replica set (shard):&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;PRIMARY&amp;gt; show dbs&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
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&lt;/div&gt;
&lt;p/&gt;</comment>
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