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    <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-35629] Use WiredTiger salvage API for repairing metadata files</title>
                <link>https://jira.mongodb.org/browse/SERVER-35629</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;WT will be adding functionality to salvage metadata information that would provide a similar result to the original goal of this ticket which is left quoted.&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;When running MongoDB with the &lt;tt&gt;--repair&lt;/tt&gt; flag and we find that the WiredTiger.wt metadata file is corrupted, we should attempt to salvage the metadata file.&lt;/p&gt;

&lt;p&gt;Because the WiredTiger.wt file cannot be salvaged directly, this process might work like so (similar to the repair-wt.sh script used in support).&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Create a new WiredTiger db in a new directory with an empty table named &quot;tmp&quot;&lt;/li&gt;
	&lt;li&gt;Copy the WiredTiger.wt file into the new db directory as tmp.wt&lt;/li&gt;
	&lt;li&gt;Run salvage on &quot;tmp&quot; in the new db directory&lt;/li&gt;
	&lt;li&gt;Extract the salvaged checkpoint information for &quot;tmp&quot; from the new db&apos;s metadata&lt;/li&gt;
	&lt;li&gt;Copy the salvaged tmp.wt back as WiredTiger.wt to the original db path&lt;/li&gt;
	&lt;li&gt;Replace the checkpoint information in WiredTiger.turtle with the salvaged checkpoint information&lt;/li&gt;
&lt;/ul&gt;
&lt;/blockquote&gt;</description>
                <environment></environment>
        <key id="560219">SERVER-35629</key>
            <summary>Use WiredTiger salvage API for repairing metadata files</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="louis.williams@mongodb.com">Louis Williams</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                            <label>nyc</label>
                    </labels>
                <created>Fri, 15 Jun 2018 19:48:22 +0000</created>
                <updated>Sun, 29 Oct 2023 22:30:43 +0000</updated>
                            <resolved>Tue, 18 Sep 2018 14:21:14 +0000</resolved>
                                                    <fixVersion>4.0.3</fixVersion>
                    <fixVersion>4.1.4</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="2009661" author="xgen-internal-githook" created="Thu, 20 Sep 2018 19:04:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API to repair corrupt metadata&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 3acf1742d7bcec78997614edb1e8ef26ccf2331f)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/27f5700f717cc0ecd5974993b0a8c80e41645cb9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/27f5700f717cc0ecd5974993b0a8c80e41645cb9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2009660" author="xgen-internal-githook" created="Thu, 20 Sep 2018 19:04:22 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API for repairing metadata files&lt;/p&gt;

&lt;p&gt;(cherry picked from commit fa156c6131d9190760eaaaf09a57eab54325fffe)&lt;br/&gt;
Branch: v4.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/68d988b840cb67a39674bcfe63dba4eefca00ff0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/68d988b840cb67a39674bcfe63dba4eefca00ff0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2006443" author="xgen-internal-githook" created="Tue, 18 Sep 2018 14:18:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API to repair corrupt metadata&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/3acf1742d7bcec78997614edb1e8ef26ccf2331f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/3acf1742d7bcec78997614edb1e8ef26ccf2331f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2003747" author="xgen-internal-githook" created="Fri, 14 Sep 2018 21:11:04 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: Revert &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API to repair corrupt metadata&quot;&lt;/p&gt;

&lt;p&gt;This reverts commit f92a1d2aaf0f4d2874f64a5e1b3c12fc66e39d4d.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d749501e072eb1c30e064ea749e0e81b988e389f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d749501e072eb1c30e064ea749e0e81b988e389f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2002977" author="xgen-internal-githook" created="Fri, 14 Sep 2018 13:54:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API to repair corrupt metadata&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f92a1d2aaf0f4d2874f64a5e1b3c12fc66e39d4d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f92a1d2aaf0f4d2874f64a5e1b3c12fc66e39d4d&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2002976" author="xgen-internal-githook" created="Fri, 14 Sep 2018 13:54:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Louis Williams&apos;, &apos;email&apos;: &apos;louis.williams@mongodb.com&apos;, &apos;username&apos;: &apos;louiswilliams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-35629&quot; title=&quot;Use WiredTiger salvage API for repairing metadata files&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-35629&quot;&gt;&lt;del&gt;SERVER-35629&lt;/del&gt;&lt;/a&gt; Use WiredTiger salvage API for repairing metadata files&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/fa156c6131d9190760eaaaf09a57eab54325fffe&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/fa156c6131d9190760eaaaf09a57eab54325fffe&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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