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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-40255] Server Crashed and lost database</title>
                <link>https://jira.mongodb.org/browse/SERVER-40255</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi Team,&lt;/p&gt;

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

&lt;p&gt;My server unexpectedly crashed due to this my mongodb database with version 3.4 lost, when i am trying to run not running using dbpath, please solve my issue, really it was about 18 months data, please help me.&lt;/p&gt;

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

&lt;p&gt;I am attaching .wt and turtle file. if you require will send complete data folder.&lt;/p&gt;</description>
                <environment></environment>
        <key id="720463">SERVER-40255</key>
            <summary>Server Crashed and lost database</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="eric.sedor@mongodb.com">Eric Sedor</assignee>
                                    <reporter username="sanaraji33">Raja Sekhar Sana</reporter>
                        <labels>
                            <label>wtc</label>
                            <label>wtcru</label>
                    </labels>
                <created>Thu, 21 Mar 2019 13:56:07 +0000</created>
                <updated>Tue, 9 Apr 2019 17:40:30 +0000</updated>
                            <resolved>Tue, 9 Apr 2019 17:40:22 +0000</resolved>
                                    <version>3.4.19</version>
                                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2197761" author="sanaraji33" created="Mon, 1 Apr 2019 15:08:10 +0000"  >&lt;p&gt;Hi Eric,&lt;/p&gt;

&lt;p&gt;Really it is a very bad to me to lost valuable data, is there any options to recover. Please guide us to get out lost data.&lt;/p&gt;

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

&lt;p&gt;thanks &amp;amp; regards&lt;/p&gt;

&lt;p&gt;Raja Sekhar&lt;/p&gt;</comment>
                            <comment id="2191217" author="eric.sedor" created="Mon, 25 Mar 2019 21:38:56 +0000"  >&lt;p&gt;Unfortunately we aren&apos;t able to repair this corruption. To avoid a problem like in the future, please see our recommendations above, especially with respect to running in a replica set and implementing a backup and backup recovery strategy.&lt;/p&gt;


&lt;p&gt; We can collect information to guide our development efforts in the future. If you are able, can you please provide:&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;The complete logs for the affected node, including before, leading up to, and after the first sign of corruption.&lt;/li&gt;
	&lt;li&gt;A complete description of the underlying storage mechanism in use. Please address questions such as whether storage is locally attached or network-attached, whether disks are SSDs or HDDs, whether disks are Are the disks SSDs or HDDs, whether RAID is in use and if so how it is configured, and what file system and/or volume management system is in use.&lt;/li&gt;
	&lt;li&gt;A description of your backup method, if any.&lt;/li&gt;
	&lt;li&gt;A history of the deployment, including:
	&lt;ol&gt;
		&lt;li&gt;a timeline of version changes&lt;/li&gt;
		&lt;li&gt;a timeline of hardware upgrade/downgrade cycles or configuration changes&lt;/li&gt;
		&lt;li&gt;a timeline of disaster recovery or backup restoration activities&lt;/li&gt;
		&lt;li&gt;a timeline of any manipulations of the underlying database files, including copies or moves, and information about whether mongod was running during each manipulation.&lt;/li&gt;
	&lt;/ol&gt;
	&lt;/li&gt;
	&lt;li&gt;Finally, can you provide assurances that you have not manipulated (copied or moved) the underlying database files while mongod was running, and that your disks have been recently checked for integrity?&lt;/li&gt;
&lt;/ol&gt;
</comment>
                            <comment id="2190601" author="sanaraji33" created="Mon, 25 Mar 2019 15:15:51 +0000"  >&lt;p&gt;Hi Eric,&lt;/p&gt;

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

&lt;p&gt;Is there any progress / update.&lt;/p&gt;

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

&lt;p&gt;regards&lt;/p&gt;

&lt;p&gt;Raja Sekhar&lt;/p&gt;</comment>
                            <comment id="2189604" author="sanaraji33" created="Sun, 24 Mar 2019 06:28:45 +0000"  >&lt;p&gt;HI Eric,&lt;/p&gt;

&lt;p&gt;No, it is not a repair attepted dbpath.&lt;/p&gt;

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

&lt;p&gt;regards&lt;/p&gt;

&lt;p&gt;Raja Sekhar&lt;/p&gt;</comment>
                            <comment id="2189348" author="eric.sedor" created="Fri, 22 Mar 2019 21:46:48 +0000"  >&lt;p&gt;Have you attemped a --repair operation on the dbpath provided at that google drive link? If so, are you able to provide the original dbpath from before that?&lt;/p&gt;</comment>
                            <comment id="2188395" author="sanaraji33" created="Fri, 22 Mar 2019 11:07:26 +0000"  >&lt;p&gt;Hi Team,&lt;/p&gt;

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

&lt;p&gt;I have database named politik and 21 collections are there in database, very important to recover for us, i am sending drive link complete data folder.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://drive.google.com/open?id=17O6J5dZdfJJOvnUL_6Ho09RlFadW0nBf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://drive.google.com/open?id=17O6J5dZdfJJOvnUL_6Ho09RlFadW0nBf&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;thanks &amp;amp; regards&lt;/p&gt;

&lt;p&gt;S Raja Sekhar&lt;/p&gt;</comment>
                            <comment id="2188391" author="sanaraji33" created="Fri, 22 Mar 2019 11:03:10 +0000"  >&lt;p&gt;Hi,&lt;/p&gt;

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

&lt;p&gt;By downloading files send by you, and replaced in dbpath, still issue remains. Please check screenshot. &lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/attachment/212043/212043_Screen1.PNG&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;span class=&quot;error&quot;&gt;&amp;#91;^data.7z&amp;#93;&lt;/span&gt;&lt;/p&gt;</comment>
                            <comment id="2188027" author="eric.sedor" created="Thu, 21 Mar 2019 21:21:31 +0000"  >&lt;p&gt;I&apos;ve attached a repair attempt of the files you provided. Please extract these files and replace them in your &lt;tt&gt;$dbpath&lt;/tt&gt;.&lt;/p&gt;

&lt;p&gt;It is our strong recommendation to:&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&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;. MongoDB 4.0 offers improved repair capabilities.&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;
</comment>
                    </comments>
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                    <name>Related</name>
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                                        <issuelink>
            <issuekey id="720486">SERVER-40256</issuekey>
        </issuelink>
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                                                        </issuelinktype>
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                <attachments>
                            <attachment id="212008" name="SERVER-40255_repair.tgz" size="1883" author="eric.sedor@mongodb.com" created="Thu, 21 Mar 2019 21:20:56 +0000"/>
                            <attachment id="212043" name="Screen1.PNG" size="184381" author="sanaraji33" created="Fri, 22 Mar 2019 11:02:49 +0000"/>
                            <attachment id="211965" name="WiredTiger.turtle" size="1015" author="sanaraji33" created="Thu, 21 Mar 2019 13:54:59 +0000"/>
                            <attachment id="211964" name="WiredTiger.wt" size="53248" author="sanaraji33" created="Thu, 21 Mar 2019 13:56:03 +0000"/>
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