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    <title>MongoDB Jira</title>
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    <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-18620] Reduce frequency of &quot;staticYield can&apos;t unlock&quot; log message</title>
                <link>https://jira.mongodb.org/browse/SERVER-18620</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &quot;staticYield can&apos;t unlock&quot; message is printed to the diagnostic log when a a query that cannot yield locks is running for a long time.  As of 2.6.0, examples of queries that cannot yield locks include (partial list): findAndModify operations with a sort, queries run inside the &quot;eval&quot; command.&lt;/p&gt;

&lt;p&gt;Example message logged by findAndModify with a sort:&lt;/p&gt;
&lt;p/&gt;
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&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2015-05-21T15:34:43.593-0400 [conn6] warning: ClientCursor::staticYield can&apos;t unlock b/c of recursive lock ns:  top: { opid: 187792, active: true, secs_running: 0, microsecs_running: 275999, op: &quot;query&quot;, ns: &quot;test&quot;, query: { findandmodify: &quot;foo&quot;, query: { a: 1.0 }, sort: { b: 1.0 }, update: { c: 1.0 } }, client: &quot;127.0.0.1:59841&quot;, desc: &quot;conn6&quot;, threadId: &quot;0x7f407c20d700&quot;, connectionId: 6, locks: { ^: &quot;w&quot;, ^test: &quot;W&quot; }, waitingForLock: false, numYields: 0, lockStats: { timeLockedMicros: {}, timeAcquiringMicros: { r: 0, w: 7 } } }&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;It is often the case that these queries are running for a long time because they are unindexed or poorly indexed.  In this case, the problem goes away once an appropriate index is created.&lt;/p&gt;

&lt;p&gt;However, this message is logged too frequently; it should only be logged periodically.  Reducing the frequency that this message is logged will help eliminate log spam for users that don&apos;t care that they have long-running queries that cannot yield locks.&lt;/p&gt;

&lt;p&gt;This message was removed for version 3.0.0 of the server.&lt;/p&gt;</description>
                <environment></environment>
        <key id="205857">SERVER-18620</key>
            <summary>Reduce frequency of &quot;staticYield can&apos;t unlock&quot; log message</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="9">Done</resolution>
                                        <assignee username="rassi">J Rassi</assignee>
                                    <reporter username="rassi">J Rassi</reporter>
                        <labels>
                    </labels>
                <created>Thu, 21 May 2015 19:58:10 +0000</created>
                <updated>Wed, 12 Aug 2015 12:35:39 +0000</updated>
                            <resolved>Thu, 21 May 2015 20:00:55 +0000</resolved>
                                                    <fixVersion>2.6.11</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="920881" author="xgen-internal-githook" created="Thu, 21 May 2015 20:00:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jrassi&apos;, u&apos;name&apos;: u&apos;Jason Rassi&apos;, u&apos;email&apos;: u&apos;rassi@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-18620&quot; title=&quot;Reduce frequency of &amp;quot;staticYield can&amp;#39;t unlock&amp;quot; log message&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-18620&quot;&gt;&lt;del&gt;SERVER-18620&lt;/del&gt;&lt;/a&gt; Log &quot;staticYield can&apos;t unlock&quot; msg inside RARELY block&lt;br/&gt;
Branch: v2.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/69324bb9b3f27306e6c52d7491154074efc22058&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/69324bb9b3f27306e6c52d7491154074efc22058&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="162789">SERVER-15583</issuekey>
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            <issuekey id="177359">SERVER-16758</issuekey>
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