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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-74532] Journal flusher&apos;s persistent session causes WT to log warning</title>
                <link>https://jira.mongodb.org/browse/SERVER-74532</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running the server for an hour, when idle, will log the following warning:&lt;/p&gt;

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

&lt;p&gt;With some GDB investigation, I discovered that this is the always-active session we use to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/6c9adc9a2d518fa046c7739e043a568f9bee6931/src/mongo/db/storage/wiredtiger/wiredtiger_session_cache.cpp#L342-L352&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;flush the journal &lt;/a&gt;, and it is never reset for the lifetime of the server. As is noted in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31912&quot; title=&quot;waitUntilDurable() should use its own WT_SESSION, not one from the cache&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31912&quot;&gt;&lt;del&gt;SERVER-31912&lt;/del&gt;&lt;/a&gt;, this does not cause problems because we never open cursors using this session.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/WT-10675&quot; title=&quot;Add open_session config to set session name&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-10675&quot;&gt;WT-10675&lt;/a&gt; proposes adding an API to set the &quot;name&quot; field that is currently EMPTY, but I&apos;m not sure how we would use that in MongoDB to suppress this warning.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2279279">SERVER-74532</key>
            <summary>Journal flusher&apos;s persistent session causes WT to log warning</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Thu, 2 Mar 2023 09:12:06 +0000</created>
                <updated>Sun, 29 Oct 2023 21:25:27 +0000</updated>
                            <resolved>Fri, 19 May 2023 14:50:07 +0000</resolved>
                                                    <fixVersion>7.0.0-rc2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5438281" author="xgen-internal-githook" created="Fri, 19 May 2023 14:47:02 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Dianna Hohensee&apos;, &apos;email&apos;: &apos;dianna.hohensee@mongodb.com&apos;, &apos;username&apos;: &apos;DiannaHohensee&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-74532&quot; title=&quot;Journal flusher&amp;#39;s persistent session causes WT to log warning&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-74532&quot;&gt;&lt;del&gt;SERVER-74532&lt;/del&gt;&lt;/a&gt; Periodically reset the WT_SESSION held for waitUntilDurable calls, so WT does not log about it&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/81ab74630f92a2076f5918198ae3175402f4b943&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/81ab74630f92a2076f5918198ae3175402f4b943&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5243565" author="donald.anderson" created="Thu, 2 Mar 2023 14:07:28 +0000"  >&lt;p&gt;If this thread could periodically call &lt;tt&gt;WT_SESSION.reset&lt;/tt&gt;, that should solve the problem.&#160; That method releases resources and runs any session sweeps that are needed.&lt;/p&gt;</comment>
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