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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-54016] WiredTigerHS.wt: handle-read: pread: failed to read 4096 bytes at offset 36864: WT_ERROR: non-specific WiredTiger error</title>
                <link>https://jira.mongodb.org/browse/SERVER-54016</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&#160;I backed up the data by hard linking the data directory of the master node of the configuration and data pod and copying the files, and then there was a problem in restoring the data.&lt;/p&gt;

&lt;p&gt;using the same replica set keys&lt;/p&gt;

&lt;p&gt;Using mongod --repair still cannot fix the problem&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="1599194">SERVER-54016</key>
            <summary>WiredTigerHS.wt: handle-read: pread: failed to read 4096 bytes at offset 36864: WT_ERROR: non-specific WiredTiger error</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="13202">Works as Designed</resolution>
                                        <assignee username="dmitry.agranat@mongodb.com">Dmitry Agranat</assignee>
                                    <reporter username="15319725080@163.com">teng zhuofei</reporter>
                        <labels>
                    </labels>
                <created>Mon, 25 Jan 2021 10:53:30 +0000</created>
                <updated>Fri, 27 Oct 2023 13:52:31 +0000</updated>
                            <resolved>Mon, 1 Feb 2021 10:48:02 +0000</resolved>
                                    <version>4.4.1</version>
                                                    <component>Logging</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3591887" author="dmitry.agranat" created="Mon, 1 Feb 2021 10:47:47 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=15319725080%40163.com&quot; class=&quot;user-hover&quot; rel=&quot;15319725080@163.com&quot;&gt;15319725080@163.com&lt;/a&gt;, &lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;I backed up the data by hard linking the data directory of the master node of the configuration and data pod and copying the files, and then there was a problem in restoring the data.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;We do not support &quot;hard linking the data directory&quot;, the issue you reported is not unexpected. As such, I will go ahead and close this case.&lt;/p&gt;

&lt;p&gt;Please refer to our supported backup methods: &lt;a href=&quot;https://docs.mongodb.com/manual/core/backups/index.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/core/backups/index.html&lt;/a&gt;. For questions about backup methods, we&apos;d like to encourage you to start by asking our community for help by posting on the &lt;a href=&quot;https://community.mongodb.com&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoDB Developer Community Forums&lt;/a&gt;.&lt;/p&gt;


&lt;p&gt;Regards,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3588924" author="JIRAUSER1258078" created="Fri, 29 Jan 2021 03:23:21 +0000"  >&lt;p&gt;I use &lt;a href=&quot;https://github.com/bitnami/charts/tree/master/bitnami/mongodb-sharded,and&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/bitnami/charts/tree/master/bitnami/mongodb-sharded,and&lt;/a&gt; running 3 configsvr,2 mongos,3 shard and 2 replicaset and 1 arbiter. &lt;br/&gt;
 I backed up the data by hard linking the data directory of the master node of the configuration and data pod and copying the files, and then there was a problem in restoring the data.&lt;br/&gt;
 because my secondary has journaling enabled and its journal and data files are on the same volume,so I am not top all write operations.But I stop&#160;balance.&lt;br/&gt;
 the uncompressed size of the data is 170Gi.I copy the entire /bitnami/mongodb-sharded with per a pod&#65292;using the same replica set keys in new cluster.&lt;/p&gt;</comment>
                            <comment id="3587048" author="dmitry.agranat" created="Thu, 28 Jan 2021 14:16:18 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=15319725080%40163.com&quot; class=&quot;user-hover&quot; rel=&quot;15319725080@163.com&quot;&gt;15319725080@163.com&lt;/a&gt;, just to clarify my previous question, could you provide steps, as detailed as possible about the backup procedure you&apos;ve used including the state of the source where the backup was executed? When describing the source state during the time of the backup, did you stop all write operations? What is the uncompressed size of the data? About the source topology, is it a standalone, a replica set of a sharded cluster?&lt;/p&gt;

&lt;p&gt;The more details you can provide, the better we&apos;ll be equipped to help you.&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Dima&lt;/p&gt;</comment>
                            <comment id="3586837" author="JIRAUSER1258078" created="Thu, 28 Jan 2021 11:18:44 +0000"  >&lt;p&gt;&lt;b&gt;I backed up the data by hard linking the data directory of the master node of the configuration and data pod and copying the files, and then there was a problem in restoring the data.&lt;/b&gt;&lt;/p&gt;</comment>
                            <comment id="3586712" author="dmitry.agranat" created="Thu, 28 Jan 2021 09:20:55 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=15319725080%40163.com&quot; class=&quot;user-hover&quot; rel=&quot;15319725080@163.com&quot;&gt;15319725080@163.com&lt;/a&gt;, it sounds like there might have been an issue with your backup process that resulted in the metadata corruption. Could you please link the MongoDB documentation page and the exact steps you&apos;ve executed to backup your data?&lt;/p&gt;</comment>
                    </comments>
                    <attachments>
                            <attachment id="296823" name="WiredTiger.wt" size="3629056" author="15319725080@163.com" created="Mon, 25 Jan 2021 10:51:06 +0000"/>
                            <attachment id="296822" name="WiredTigerHS.wt" size="36864" author="15319725080@163.com" created="Mon, 25 Jan 2021 10:52:24 +0000"/>
                            <attachment id="296825" name="mongodb.conf" size="1065" author="15319725080@163.com" created="Mon, 25 Jan 2021 10:51:01 +0000"/>
                            <attachment id="296824" name="mongodb.log" size="10826004" author="15319725080@163.com" created="Mon, 25 Jan 2021 10:51:10 +0000"/>
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