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    <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>[DOCS-16242] [SERVER] Investigate changes in SERVER-76001: Add serverStatus metrics for PeriodicThreadToAbortExpiredTransactions</title>
                <link>https://jira.mongodb.org/browse/DOCS-16242</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Original Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;    New serverStatus field:&lt;br/&gt;
&quot;metrics.abortExpiredTransactions.passes&quot;&lt;/p&gt;

&lt;p&gt;A &apos;pass&apos; is scheduled periodically, and aborts transactions older than &apos;transactionLifetimeLimitSeconds&apos;. &quot;passes&quot; is incremented after a successful pass. &lt;/p&gt;

&lt;p&gt;For Triage: If the metric stops incrementing, the thread could be stuck trying to abort a transaction.&lt;/p&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    This thread is imperative to ensure forward progress of the system. Since we&apos;ve seen multiple hangs where the thread gets stuck, we should add serverStatus metrics which track the number of of transactions killed by the thread. &lt;/p&gt;

&lt;p&gt;Additionally, we should consider &lt;a href=&quot;https://github.com/10gen/mongo/blob/c6e5701933a98b4fe91c2409c212fcce2d3d34f0/src/mongo/db/session/kill_sessions_local.cpp#L73&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;adding a log line&lt;/a&gt; to indicate which session(s) the thread is trying to abort. &lt;/p&gt;
</description>
                <environment></environment>
        <key id="2383228">DOCS-16242</key>
            <summary>[SERVER] Investigate changes in SERVER-76001: Add serverStatus metrics for PeriodicThreadToAbortExpiredTransactions</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="kenneth.dyer@mongodb.com">Kenneth Dyer</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Jul 2023 09:55:15 +0000</created>
                <updated>Mon, 13 Nov 2023 18:43:50 +0000</updated>
                            <resolved>Fri, 29 Sep 2023 20:45:55 +0000</resolved>
                                    <version>7.1.0-rc0</version>
                    <version>7.1.0</version>
                                    <fixVersion>7.1.0-rc0</fixVersion>
                    <fixVersion>7.1.0</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
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                            <customfieldvalue>New serverStatus field:&lt;br/&gt;
&amp;quot;metrics.abortExpiredTransactions.passes&amp;quot;&lt;br/&gt;
&lt;br/&gt;
A &amp;#39;pass&amp;#39; is scheduled periodically, and aborts transactions older than &amp;#39;transactionLifetimeLimitSeconds&amp;#39;. &amp;quot;passes&amp;quot; is incremented after a successful pass. &lt;br/&gt;
&lt;br/&gt;
For Triage: If the metric stops incrementing, the thread could be stuck trying to abort a transaction.</customfieldvalue>

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