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    <title>MongoDB Jira</title>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-21228] Do not hold the replication executor mutex/lock while running isself</title>
                <link>https://jira.mongodb.org/browse/SERVER-21228</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently when loading or validating a new config the isself check is run when holding the mutex/lock and it can lead to a dead lock or client/operation delays.&lt;/p&gt;

&lt;p&gt;We should instead schedule any long running IO, like the network request isself might make, of any lock.&lt;/p&gt;

&lt;p&gt;We may also want to audit the code to make sure no instance of this pattern exist, where we hold the mutex and issue network/disk work.&lt;/p&gt;</description>
                <environment></environment>
        <key id="237094">SERVER-21228</key>
            <summary>Do not hold the replication executor mutex/lock while running isself</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="scotthernandez">Scott Hernandez</reporter>
                        <labels>
                            <label>replexecutor</label>
                    </labels>
                <created>Fri, 30 Oct 2015 19:33:13 +0000</created>
                <updated>Tue, 6 Dec 2022 04:40:49 +0000</updated>
                            <resolved>Tue, 20 Mar 2018 20:08:07 +0000</resolved>
                                    <version>3.0.0</version>
                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1077321" author="benety.goh" created="Mon, 2 Nov 2015 21:35:53 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=acm&quot; class=&quot;user-hover&quot; rel=&quot;acm&quot;&gt;acm&lt;/a&gt;, would it make to extend the network interface API to provide an asynchronous isself function?&lt;/p&gt;

&lt;p&gt;The issue here is that we are calling the potentially long running isself function in a ReplicationExecutor callback which could block other tasks scheduled by the ReplicationCoordinator from progressing.&lt;/p&gt;

&lt;p&gt;We would need to reorder some of the callbacks for the replication configuration checks but that should not be a big deal if we can process the result of the isself check in a ReplicationCoordinatorImpl::callback.&lt;/p&gt;</comment>
                            <comment id="1076774" author="milkie" created="Mon, 2 Nov 2015 15:32:22 +0000"  >&lt;p&gt;I&apos;d like to at least research the details of this before 3.2 release.&lt;/p&gt;</comment>
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