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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-33487] mongodb database cannot start after crash, cannot solve by --repair</title>
                <link>https://jira.mongodb.org/browse/SERVER-33487</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;After an unexpected crash, the database could not restart (as shown in picture 1).&lt;br/&gt;
I used the --repair command option, but failed at some of the point (as shown in picture 2).&lt;br/&gt;
If the errors came from some corrupted files, I wonder if there&apos;s some way to ignore them since the loss of some of the data is acceptable.&lt;/p&gt;

&lt;p&gt;I&apos;m really a freshman to this, please help me. Thanks for all of your efforts!&lt;/p&gt;</description>
                <environment></environment>
        <key id="502507">SERVER-33487</key>
            <summary>mongodb database cannot start after crash, cannot solve by --repair</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="kelsey.schubert@mongodb.com">Kelsey Schubert</assignee>
                                    <reporter username="Jeremy Guo">Guo Xiaohan [X]</reporter>
                        <labels>
                    </labels>
                <created>Mon, 26 Feb 2018 16:48:02 +0000</created>
                <updated>Wed, 21 Mar 2018 04:32:40 +0000</updated>
                            <resolved>Mon, 26 Feb 2018 17:09:59 +0000</resolved>
                                    <version>3.6.2</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1817223" author="thomas.schubert" created="Tue, 27 Feb 2018 15:47:58 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=Jeremy+Guo&quot; class=&quot;user-hover&quot; rel=&quot;Jeremy Guo&quot;&gt;Jeremy Guo&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Unfortunately, given the nature of this error there may be corruption on multiple files, and, unfortunately, deleting a single file will be unlikely to resolve this issue. Additionally, please note that removing a file would cause a mismatch with the WiredTiger metadata files and prevent mongod from starting. My best recommendation would be to restore from a back up if possible.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                            <comment id="1816784" author="jeremy guo" created="Tue, 27 Feb 2018 02:21:27 +0000"  >&lt;p&gt;Hello Mrs.Kelsey,&lt;/p&gt;

&lt;p&gt;Is there any possibility to delete the corrupted &quot;log.log20180218&quot; to restart the database successfully? Which directory should I go to? Since the boss wants to start the database as soon as possible, without caring about one day or two days&apos; data.&lt;/p&gt;

&lt;p&gt;Best,&lt;br/&gt;
Guo Xiaohan&lt;/p&gt;</comment>
                            <comment id="1816738" author="jeremy guo" created="Tue, 27 Feb 2018 00:28:28 +0000"  >&lt;p&gt;Thanks a lot for your comments! I&apos;ll try it!&lt;br/&gt;
Next time I&apos;ll post it on other discussion groups appropriately!&lt;/p&gt;</comment>
                            <comment id="1816149" author="thomas.schubert" created="Mon, 26 Feb 2018 17:09:59 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=Jeremy+Guo&quot; class=&quot;user-hover&quot; rel=&quot;Jeremy Guo&quot;&gt;Jeremy Guo&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;An Input/output error indicates something has gone wrong on the storage layer underneath MongoDB. At this point there is no way to know the extent of the issue or whether any data recovery is possible. As next steps, I would strongly recommend checking the validity of this storage layer and attempting to move the data files to a new hardware.&lt;/p&gt;

&lt;p&gt; Please note that the SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For MongoDB-related support discussion please post on the &lt;a href=&quot;http://groups.google.com/group/mongodb-user&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongodb-user group&lt;/a&gt; or &lt;a href=&quot;http://stackoverflow.com/questions/tagged/mongodb&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Stack Overflow with the &lt;tt&gt;mongodb&lt;/tt&gt; tag&lt;/a&gt;. A question like this involving more discussion would be best posted on the mongodb-users group.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="180250" name="picture1.png" size="310015" author="Jeremy Guo" created="Mon, 26 Feb 2018 16:48:57 +0000"/>
                            <attachment id="180251" name="picture2.png" size="65054" author="Jeremy Guo" created="Mon, 26 Feb 2018 16:48:59 +0000"/>
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