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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-84440] Expose the number of replication waiters in serverStatus</title>
                <link>https://jira.mongodb.org/browse/SERVER-84440</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The &lt;a href=&quot;https://github.com/mongodb/mongo/blob/38a98af97aa04a31f5fda75d9f6c570f12d84026/src/mongo/db/repl/replication_coordinator_impl.cpp#L6045&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;replication waiters list&lt;/a&gt; can grow with the number of operations waiting for write concern. Advancing replication timestamps also requires updating all waiters in this list under a mutex. If the list is long, this can take a long time.&lt;/p&gt;

&lt;p&gt;It would be useful to be able to see how many operations are waiting for replication in this state, which would make it easier to diagnose problems in this area.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2533679">SERVER-84440</key>
            <summary>Expose the number of replication waiters in serverStatus</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="matthew.russotto@mongodb.com">Matthew Russotto</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                            <label>RDY</label>
                    </labels>
                <created>Thu, 28 Dec 2023 18:05:42 +0000</created>
                <updated>Fri, 19 Jan 2024 13:28:05 +0000</updated>
                            <resolved>Thu, 11 Jan 2024 16:19:50 +0000</resolved>
                                                    <fixVersion>7.3.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="6002831" author="xgen-internal-githook" created="Thu, 11 Jan 2024 04:49:18 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Matthew Russotto&apos;, &apos;email&apos;: &apos;matthew.russotto@mongodb.com&apos;, &apos;username&apos;: &apos;mtrussotto&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84440&quot; title=&quot;Expose the number of replication waiters in serverStatus&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84440&quot;&gt;&lt;del&gt;SERVER-84440&lt;/del&gt;&lt;/a&gt; Expose the number of replication waiters in serverStatus&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 916e8966874206ec19f2ad8ebc04bfd632c7831a&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6642a89a91944eadd269a6945e83a6bd45db9e01&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6642a89a91944eadd269a6945e83a6bd45db9e01&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="6002828" author="xgen-internal-githook" created="Thu, 11 Jan 2024 04:48:56 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Matthew Russotto&apos;, &apos;email&apos;: &apos;matthew.russotto@mongodb.com&apos;, &apos;username&apos;: &apos;mtrussotto&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-84440&quot; title=&quot;Expose the number of replication waiters in serverStatus&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-84440&quot;&gt;&lt;del&gt;SERVER-84440&lt;/del&gt;&lt;/a&gt; Promote Atomic64Metric to mongo namespace&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 7fd31b67db940261b7d161d1311d5449de83761a&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fc93f972395a09d6b6a79bf9478e165d1de574ca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fc93f972395a09d6b6a79bf9478e165d1de574ca&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="2543428">COMPASS-7575</issuekey>
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                                        <issuelink>
            <issuekey id="2533860">SERVER-84449</issuekey>
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                            <customfieldvalue>This adds two metrics to the serverStatus.metrics section:&lt;br/&gt;
&lt;br/&gt;
{code}&lt;br/&gt;
repl.waiters.replication&lt;br/&gt;
&lt;br/&gt;
repl.waiters.opTime&lt;br/&gt;
{code}&lt;br/&gt;
repl.waiters.replication exposes how many threads are waiting for a replicated and/or journaled write concern to resolve.  repl.waiters.opTime exposes how many threads are waiting for a local optime only.&lt;br/&gt;
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