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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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-77707] Always invoke onReply callback out-of-line for exhaust commands in NetworkInterfaceTL</title>
                <link>https://jira.mongodb.org/browse/SERVER-77707</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53084&quot; title=&quot;ServerDiscoveryMonitor::shutdown can lead to deadlock&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53084&quot;&gt;&lt;del&gt;SERVER-53084&lt;/del&gt;&lt;/a&gt;, we ensured that the onFinish callback that is run whenever an ordinary RPC through the network interface completes (either via success or cancellation/timeout/error) runs out-of-line from the actual completion event. That ensured that code that might complete RPC requests (i.e. by cancelling them) didn&apos;t have to worry about holding shared resources that the completion-callbacks might also want to acquire.&#160;&lt;/p&gt;

&lt;p&gt;However, for exhaust commands scheduled through the NetworkInterfaceTL, it is still possible for the completion-callback to run in-line with the completion event (i.e. cancellation can invoke the completion callback in-line). This can cause deadlocks when the cancelling code holds resources the callback wants to acquire. We should harden the API to guarantee that the onReply callback for exhaust commands is never run in-line with the completion event, which should simply schedule it.&#160;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2356256">SERVER-77707</key>
            <summary>Always invoke onReply callback out-of-line for exhaust commands in NetworkInterfaceTL</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="13201">Fixed</resolution>
                                        <assignee username="george.wangensteen@mongodb.com">George Wangensteen</assignee>
                                    <reporter username="george.wangensteen@mongodb.com">George Wangensteen</reporter>
                        <labels>
                    </labels>
                <created>Thu, 1 Jun 2023 18:15:20 +0000</created>
                <updated>Sun, 29 Oct 2023 21:20:35 +0000</updated>
                            <resolved>Wed, 7 Jun 2023 21:48:17 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5482440" author="xgen-internal-githook" created="Wed, 7 Jun 2023 19:36:00 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;George Wangensteen&apos;, &apos;email&apos;: &apos;george.wangensteen@mongodb.com&apos;, &apos;username&apos;: &apos;gewa24&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-77707&quot; title=&quot;Always invoke onReply callback out-of-line for exhaust commands in NetworkInterfaceTL&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-77707&quot;&gt;&lt;del&gt;SERVER-77707&lt;/del&gt;&lt;/a&gt; Always invoke onReply callback out-of-line for exhaust commands in NetworkInterfaceTL&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/896dc42efd5876642309d0e3234bb423257959f7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/896dc42efd5876642309d0e3234bb423257959f7&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2348178">SERVER-77403</issuekey>
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