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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-19671] NUL character in namespace causes invariant failure</title>
                <link>https://jira.mongodb.org/browse/SERVER-19671</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Using the NUL character (\0) in a namespace via applyOps will cause the server to abort with an invariant failure. Does not affect mmap but instead outputs &quot;13520 DurableMappedFile only supports filenames in a certain format /data/db/a&quot;&lt;/p&gt;

&lt;p/&gt;
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					&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;Invariant failure _name == nsToDatabaseSubstring(ns) src/mongo/db/catalog/database.cpp 416&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment>WiredTiger storage engine.</environment>
        <key id="223463">SERVER-19671</key>
            <summary>NUL character in namespace causes invariant failure</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="david.hows">David Hows</assignee>
                                    <reporter username="j.delaney">J Delaney</reporter>
                        <labels>
                    </labels>
                <created>Thu, 30 Jul 2015 18:45:00 +0000</created>
                <updated>Wed, 7 Dec 2016 22:50:08 +0000</updated>
                            <resolved>Wed, 23 Sep 2015 23:54:04 +0000</resolved>
                                    <version>3.0.5</version>
                    <version>3.1.6</version>
                                    <fixVersion>3.1.9</fixVersion>
                                    <component>Storage</component>
                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="1041501" author="xgen-internal-githook" created="Wed, 23 Sep 2015 23:51:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;daveh86&apos;, u&apos;name&apos;: u&apos;David Hows&apos;, u&apos;email&apos;: u&apos;howsdav@gmail.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-19671&quot; title=&quot;NUL character in namespace causes invariant failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-19671&quot;&gt;&lt;del&gt;SERVER-19671&lt;/del&gt;&lt;/a&gt; - Null chars in namespaces cause issues&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8efa1322b11574c7d4286cef56e937718aa5e2a1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8efa1322b11574c7d4286cef56e937718aa5e2a1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="993513" author="david.hows" created="Fri, 31 Jul 2015 03:34:49 +0000"  >&lt;p&gt;Running this applyOps command under MMv1 will also create a small file for each database name like the one below. Running a simple insert under either MMv1 or WT (&lt;tt&gt;db[&quot;a\0a&quot;].insert({})&lt;/tt&gt;) will generate a more correct error and not result in the file being created in the case of MMv1.&lt;br/&gt;
&lt;b&gt;Created File&lt;/b&gt;&lt;/p&gt;
&lt;p/&gt;
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					&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;-rw-------   1 davidhows  wheel   16777216 31 Jul 12:20 a&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;&lt;b&gt;Error seen at verbosity 1&lt;/b&gt;&lt;/p&gt;
&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 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;....&lt;/span&gt;&lt;/pre&gt;
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						&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-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;2015-07-31T12:25:50.911+1000 D COMMAND  [conn1] assertion while executing command &apos;insert&apos; on database &apos;test&apos; with arguments &apos;{ insert: &quot;aa&quot;, documents: [ { _id: ObjectId(&apos;55badcae23fddf29952f3715&apos;), x: 1.0 } ], ordered: true }&apos; and metadata &apos;{}&apos;: 17295 namespaces cannot have embedded null characters&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;
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