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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-10304] Don&apos;t hold mutex while trying to establish connection to replica sets</title>
                <link>https://jira.mongodb.org/browse/SERVER-10304</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;There are a couple of places inside ReplicaSetMonitor that holds the _setsLock mutex while creating a new connection to the seed nodes of the set. This can be problematic in the case when the monitor decides to stop monitoring a set after getting continuous errors (basically it assumes that the shard has been removed), then another request will try to talk to the removed set. This will then prompt the monitor to recreate it from the cached seedlist. And this is done while holding the mutex. If it takes time for the set to error out, then it will be blocking all the other threads who wants to use the monitor to talk to the other sets as well.&lt;/p&gt;</description>
                <environment></environment>
        <key id="83271">SERVER-10304</key>
            <summary>Don&apos;t hold mutex while trying to establish connection to replica sets</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="3">Duplicate</resolution>
                                        <assignee username="mathias@mongodb.com">Mathias Stearn</assignee>
                                    <reporter username="randolph@mongodb.com">Randolph Tan</reporter>
                        <labels>
                    </labels>
                <created>Tue, 23 Jul 2013 19:27:00 +0000</created>
                <updated>Wed, 10 Dec 2014 23:04:31 +0000</updated>
                            <resolved>Thu, 30 Jan 2014 18:29:56 +0000</resolved>
                                    <version>2.5.1</version>
                                                    <component>Internal Client</component>
                                        <votes>1</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="389368" author="renctan" created="Fri, 26 Jul 2013 14:45:49 +0000"  >&lt;p&gt;Attached test patch to demonstrate the problem.&lt;/p&gt;</comment>
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                            <attachment id="29256" name="test.patch" size="4620" author="randolph@mongodb.com" created="Fri, 26 Jul 2013 14:45:25 +0000"/>
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