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        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-14396] issue periodic warnings to the log while instance is locked</title>
                <link>https://jira.mongodb.org/browse/SERVER-14396</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;For various reasons, including &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-1423&quot; title=&quot;reads often aren&amp;#39;t possible while in fsync and lock mode&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-1423&quot;&gt;&lt;del&gt;SERVER-1423&lt;/del&gt;&lt;/a&gt; (which can prevent fsyncUnlock from being issued if the connection on which the fsyncLock is done is closed), or plain user error in coding scripts, a mongod instance can end up being locked unexpectedly for an extended time. When this happens the cause of the resulting symptoms can be difficult to diagnose, since the only evidence in the logs is typically an fsyncLock command, which may be far removed (e.g. in a different log file) from the time when the error is noticed.&lt;/p&gt;

&lt;p&gt;Since mongod instance being locked for an extended time is a potentially serious condition, and is likely unintended, it would be helpful for diagnosis if periodic warnings were issued to the log, e.g. &quot;WARNING: instance is locked; all db writes and possibly all db reads will be blocked&quot;. Such a warning possibly as often as once per minute might be justified.&lt;/p&gt;</description>
                <environment></environment>
        <key id="144682">SERVER-14396</key>
            <summary>issue periodic warnings to the log while instance is locked</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="gregory.wlodarek@mongodb.com">Gregory Wlodarek</assignee>
                                    <reporter username="bruce.lucas@mongodb.com">Bruce Lucas</reporter>
                        <labels>
                            <label>RFDI</label>
                            <label>neweng</label>
                    </labels>
                <created>Mon, 30 Jun 2014 19:48:30 +0000</created>
                <updated>Wed, 8 May 2019 13:16:03 +0000</updated>
                            <resolved>Wed, 8 May 2019 13:16:03 +0000</resolved>
                                                    <fixVersion>4.1.11</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="2238381" author="xgen-internal-githook" created="Wed, 8 May 2019 13:14:58 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;gregory.wlodarek@mongodb.com&apos;, &apos;name&apos;: &apos;Gregory Wlodarek&apos;, &apos;username&apos;: &apos;GWlodarek&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14396&quot; title=&quot;issue periodic warnings to the log while instance is locked&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14396&quot;&gt;&lt;del&gt;SERVER-14396&lt;/del&gt;&lt;/a&gt; Issue periodic warnings to the log while instance is locked&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/29db842551e2c032567406be94ba6575b5f997e2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/29db842551e2c032567406be94ba6575b5f997e2&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="144680">DOCS-3681</issuekey>
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