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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[DOCS-10280] We may want to state the we don&apos;t recommend turning off the journal with WT</title>
                <link>https://jira.mongodb.org/browse/DOCS-10280</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;In our &lt;a href=&quot;https://docs.mongodb.com/manual/core/journaling/#journaling-and-the-wiredtiger-storage-engine&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Journal documentation&lt;/a&gt; it doesn&apos;t mention that turning off journaling will result in performance issues for WT.&lt;/p&gt;

&lt;p&gt;There are a couple of issues as I understand it. One I think I understand well:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;If using &lt;tt&gt;j : true&lt;/tt&gt; or &lt;tt&gt;w : &quot;majority&quot;&lt;/tt&gt;, writes can&apos;t be acknowledged until they make it to disk. Therefore, any time a write comes in, a checkpoint is triggered in order to persist the data quickly and acknowledge the write. The performance cost of frequent checkpoints, however, is far in excess of the performance benefits of turning off journaling for most production systems.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The other I am less sure about: &lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;I think I&apos;ve heard a rumor that even without &lt;tt&gt;j : true&lt;/tt&gt; there are still performance costs of turning off the journal.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=anonymous.user&quot; class=&quot;user-hover&quot; rel=&quot;anonymous.user&quot;&gt;anonymous.user&lt;/a&gt; do you know any details about this? Have anything to add? Alternatively, have I misunderstood the part about performance impacts without journaling?&lt;/p&gt;</description>
                <environment></environment>
        <key id="384866">DOCS-10280</key>
            <summary>We may want to state the we don&apos;t recommend turning off the journal with WT</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="william.cross">William Cross</reporter>
                        <labels>
                    </labels>
                <created>Thu, 18 May 2017 19:46:06 +0000</created>
                <updated>Mon, 30 Oct 2023 21:12:07 +0000</updated>
                                                            <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="4940736" author="edu.bot" created="Mon, 31 Oct 2022 16:10:07 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
                            <comment id="1575090" author="thomas.schubert" created="Fri, 19 May 2017 03:14:53 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=william.cross&quot; class=&quot;user-hover&quot; rel=&quot;william.cross&quot;&gt;william.cross&lt;/a&gt;, the description of the first issue looks good to me. The second issue isn&apos;t ringing any bells for me at the moment.&lt;/p&gt;</comment>
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