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    <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-73915] TransactionCoordinatorService may stall primary step-up from completing when replica set shard steps down and back up quickly</title>
                <link>https://jira.mongodb.org/browse/SERVER-73915</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;All TransactionCoordinators from the previous term when the node was primary must have exited before a node can &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r6.0.4/src/mongo/db/repl/replication_coordinator_external_state_impl.cpp#L953&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;finish stepping up as primary&lt;/a&gt;. The mechanisms for interrupting TransactionCoordinators involves interrupting active OperationContext and shutting down the txn::AsyncWorkScheduler&apos;s TaskExecutor. However the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/r6.0.4/src/mongo/db/s/transaction_coordinator.cpp#L56-L65&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;TransactionCoordinator also waits through the WaitForMajorityService&lt;/a&gt; and isn&apos;t guaranteed to be interrupted. This results in the node completing its member state PRIMARY transition but being unable to exit &quot;drain mode&quot; where the node can accepts writes as primary.&lt;/p&gt;

&lt;p&gt;One visible symptom of this behavior is for the following message to be logged every 5 seconds.&lt;/p&gt;

&lt;p/&gt;
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                <environment></environment>
        <key id="2261211">SERVER-73915</key>
            <summary>TransactionCoordinatorService may stall primary step-up from completing when replica set shard steps down and back up quickly</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="david.chen@mongodb.com">David Chen</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>sharding-nyc-subteam2</label>
                    </labels>
                <created>Sat, 11 Feb 2023 00:04:52 +0000</created>
                <updated>Sun, 29 Oct 2023 21:26:27 +0000</updated>
                            <resolved>Wed, 2 Aug 2023 19:22:39 +0000</resolved>
                                    <version>4.4.0</version>
                    <version>5.0.0</version>
                    <version>6.0.0</version>
                    <version>6.3.0-rc0</version>
                                    <fixVersion>7.1.0-rc0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="5609221" author="xgen-internal-githook" created="Thu, 3 Aug 2023 01:06:34 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;David Chen&apos;, &apos;email&apos;: &apos;david.chen@mongodb.com&apos;, &apos;username&apos;: &apos;&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73915&quot; title=&quot;TransactionCoordinatorService may stall primary step-up from completing when replica set shard steps down and back up quickly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73915&quot;&gt;&lt;del&gt;SERVER-73915&lt;/del&gt;&lt;/a&gt; - Stop TransactionCoordinator from hanging on step up&lt;br/&gt;
Branch: minh.luu-no_compile_sys-perf&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/35633e274e103866c6b49fa41d02f5297ee952d1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/35633e274e103866c6b49fa41d02f5297ee952d1&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5608560" author="xgen-internal-githook" created="Wed, 2 Aug 2023 19:20:17 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;David Chen&apos;, &apos;email&apos;: &apos;david.chen@mongodb.com&apos;, &apos;username&apos;: &apos;&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-73915&quot; title=&quot;TransactionCoordinatorService may stall primary step-up from completing when replica set shard steps down and back up quickly&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-73915&quot;&gt;&lt;del&gt;SERVER-73915&lt;/del&gt;&lt;/a&gt; - Stop TransactionCoordinator from hanging on step up&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/35633e274e103866c6b49fa41d02f5297ee952d1&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/35633e274e103866c6b49fa41d02f5297ee952d1&lt;/a&gt;&lt;/p&gt;</comment>
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