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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-13235] 2.6 mongorestore --dbpath fails to restore into to a 2.4 server</title>
                <link>https://jira.mongodb.org/browse/SERVER-13235</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;repro script is at &lt;a href=&quot;https://github.com/10gen/QA/blob/master/QA-404/dumprestore_dbpath.js&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/QA/blob/master/QA-404/dumprestore_dbpath.js&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;just uncomment line 184: &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;runDumpRestoreTest({s:&quot;2.4&quot;,t: &quot;2.4&quot;,d: &quot;2.4&quot;,r: &quot;2.6&quot;, oldSchema:false}, {usersShouldExist:true, loginsShouldWork:true}) &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;this text attempts to start up a 2.4 server (source), another 2.4 server (target), insert a bunch of users in the source, shut down both servers, mongodump from the source and restore into target.&lt;/p&gt;

&lt;p&gt;Mongorestore logs this error:&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;   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;2014-03-17T16:22:38.750-0400 shell: started program mongorestore-2.6 --dbpath /data/db/mongod-50003&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&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;   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;sh95626| 2014-03-17T16:22:38.772-0400 dump/admin/system.users.bson&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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;   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;sh95626| 2014-03-17T16:22:38.772-0400   going into namespace [admin.system.users]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;   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;sh95626| Restoring to admin.system.users without dropping. Restored data will be inserted without raising errors; check your server log&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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-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;sh95626| assertion: 17416 Cannot modify user data on a server with version greater than or equal to 2.5.4 that has not yet updated the authorization data to schema version 3. Found server version 2.6.0-rc1 with authorization schema version 1&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="121867">SERVER-13235</key>
            <summary>2.6 mongorestore --dbpath fails to restore into to a 2.4 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="2">Won&apos;t Fix</resolution>
                                        <assignee username="spencer@mongodb.com">Spencer Brody</assignee>
                                    <reporter username="mikeo@mongodb.com">Michael O&apos;Brien</reporter>
                        <labels>
                            <label>26qa</label>
                    </labels>
                <created>Mon, 17 Mar 2014 20:26:59 +0000</created>
                <updated>Wed, 10 Dec 2014 23:15:04 +0000</updated>
                            <resolved>Wed, 21 May 2014 18:55:28 +0000</resolved>
                                                                    <component>Security</component>
                    <component>Tools</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="518954" author="spencer" created="Wed, 19 Mar 2014 02:13:12 +0000"  >&lt;p&gt;Workarounds are to use mongorestore from v2.4 or to start a mongod on the target datafiles and restore to it without --dbpath&lt;/p&gt;</comment>
                            <comment id="518587" author="spencer" created="Tue, 18 Mar 2014 18:36:11 +0000"  >&lt;p&gt;We use the buildinfo command to detect the version of the target system, and then have some safety checks based on the schema version of the user data and the target system&apos;s mongodb version.  The problem is that when we&apos;re using --dbpath, we&apos;re running the buildinfo command with a DBDirectClient, which will always report the version of mongorestore itself (as the data files on disk have no mongodb server version associated with them).  So right now when using --dbpath mongorestore will always think it&apos;s talking to a v2.6 system, even if the datafiles were generated by a 2.4 mongod.&lt;/p&gt;

&lt;p&gt;One potential fix is to require the user to specify the target mongodb version of the data files being restored into whenever --dbpath is used.  Then we could do our safety checks based on that.&lt;/p&gt;

&lt;p&gt;Another option would be to infer the target server version from the authz schema version.  The downside to this is that we wouldn&apos;t be able to distinguish between a 2.4 system and a non-upgraded 2.6 system, so we may end up violating the constraint that user data is readonly after upgrade to 2.6 until the user data upgrade process is run.&lt;/p&gt;</comment>
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