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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-14562] more debug information for very long-held dblocks</title>
                <link>https://jira.mongodb.org/browse/SERVER-14562</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When certain operations take a very long amount of time waiting for locks, it&apos;s difficult to determine what they were waiting on unless it was a client operation and reported as slow.  Non-client operations have no visibility.&lt;/p&gt;

&lt;p&gt;Proposal: potentially in debug mode only, for now, report warnings in the log for operations that A) hold locks for long amounts of time (multiple seconds) and B) wait a long amount of time for locks.  Traces would also be great, but maybe too noisy.&lt;/p&gt;

&lt;p&gt;As an example, in testing we intermittently see activity stop and killCursors take &amp;gt; 30s to complete (waiting for locks), but no other client operations take nearly this amount of time.&lt;/p&gt;</description>
                <environment></environment>
        <key id="147254">SERVER-14562</key>
            <summary>more debug information for very long-held dblocks</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="kaloian.manassiev@mongodb.com">Kaloian Manassiev</assignee>
                                    <reporter username="greg_10gen">Greg Studer</reporter>
                        <labels>
                    </labels>
                <created>Tue, 15 Jul 2014 15:55:23 +0000</created>
                <updated>Mon, 11 Jul 2016 17:17:52 +0000</updated>
                            <resolved>Wed, 29 Oct 2014 20:48:33 +0000</resolved>
                                                    <fixVersion>2.8.0-rc0</fixVersion>
                                    <component>Concurrency</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="751930" author="kaloian.manassiev" created="Wed, 29 Oct 2014 20:48:33 +0000"  >&lt;p&gt;Available as of commit: &lt;a href=&quot;https://github.com/mongodb/mongo/commit/083474cc37be86d9cb6302b8fe899293eb692429&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/083474cc37be86d9cb6302b8fe899293eb692429&lt;/a&gt;&lt;/p&gt;</comment>
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