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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-42768] uassert if the storage engine does not support checkpoints when running validate with { background: true }</title>
                <link>https://jira.mongodb.org/browse/SERVER-42768</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We will have code along the lines of &lt;/p&gt;

&lt;p&gt;opCtx-&amp;gt;setCheckpointRead()&lt;br/&gt;
CheckpointLock lk = storageEngine-&amp;gt;getCheckpointLock();&lt;br/&gt;
recordStore()-&amp;gt;getCursor()&lt;br/&gt;
iam()-&amp;gt;getCursor()&lt;/p&gt;

&lt;p&gt;we need something in here to fail when the storage engine does not support background validation using checkpoints...&lt;/p&gt;

&lt;p&gt;We were thinking of making RecoveryUnit::setTimestampReadSource check whether checkpoints are supported via a supportsCheckpoints() function on the RecoveryUnit or StorageEngine, but it appears setTimestampReadSource() is only implemented by WT and otherwise does nothing.&lt;/p&gt;

&lt;p&gt;So, unless we can think of something else, we probably need to create a StorageEngine::supportsCheckpoints() function and use it at the cmd level.&lt;/p&gt;</description>
                <environment></environment>
        <key id="891315">SERVER-42768</key>
            <summary>uassert if the storage engine does not support checkpoints when running validate with { background: true }</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="gregory.wlodarek@mongodb.com">Gregory Wlodarek</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Mon, 12 Aug 2019 16:58:28 +0000</created>
                <updated>Sun, 29 Oct 2023 22:18:09 +0000</updated>
                            <resolved>Fri, 16 Aug 2019 16:20:16 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2375312" author="xgen-internal-githook" created="Fri, 16 Aug 2019 16:18:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42768&quot; title=&quot;uassert if the storage engine does not support checkpoints when running validate with { background: true }&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42768&quot;&gt;&lt;del&gt;SERVER-42768&lt;/del&gt;&lt;/a&gt; uassert if the storage engine does not support checkpoints when running validate with &lt;/p&gt;
{ background: true }
&lt;p&gt;Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/57e2f5bb65413907950899c8e0ab6e4ec82ff1d1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/57e2f5bb65413907950899c8e0ab6e4ec82ff1d1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2373850" author="gregory.wlodarek" created="Thu, 15 Aug 2019 17:17:07 +0000"  >&lt;p&gt;I tried looking at the checkpoint thread to see how we handle checkpointing on different storage engines today. Unfortunately, the &lt;tt&gt;WTCheckpointThread&lt;/tt&gt; is WiredTiger specific logic and not a generalized class. Adding a &lt;tt&gt;supportsCheckpoints()&lt;/tt&gt; function will be the best bet.&lt;/p&gt;</comment>
                    </comments>
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                            <issuelinktype id="10320">
                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="898498">DOCS-12961</issuekey>
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                            <customfieldvalue>Running the validate command with {background: true} requires a storage engine that supports checkpoints (so far WiredTiger only when it is not running in memory from what we support).</customfieldvalue>

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