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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-62264] Create cluster server parameter polling job on mongos</title>
                <link>https://jira.mongodb.org/browse/SERVER-62264</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Cluster server parameters also need to be synchronized from the CSRS to mongoses on sharded clusters. Unlike replica sets, there is no way to monitor a source of truth on disk and make in-memory changes appropriately. Therefore, mongoses will have to run a periodic job in the background that polls for updated parameters. The frequency of these checks will be bounded via a new &lt;tt&gt;setParameter&lt;/tt&gt;, &lt;tt&gt;clusterParameterStalenessIntervalSecs&lt;/tt&gt;. The periodic job will also be triggered every time a new &lt;tt&gt;clusterParameterTime&lt;/tt&gt; is gossiped in.&lt;/p&gt;
&lt;ol&gt;
	&lt;li&gt;Define a new node-specific server parameter, &lt;tt&gt;clusterParameterStalenessIntervalSecs&lt;/tt&gt;, that is used to bound the maximum amount of time between consecutive runs.&lt;/li&gt;
	&lt;li&gt;Create a polling job that runs on a background thread and runs a find command filtering on documents with &lt;tt&gt;clusterParameterTime&lt;/tt&gt; greater than the largest &lt;tt&gt;clusterParameterTime&lt;/tt&gt; the mongos has cached locally.&lt;/li&gt;
	&lt;li&gt;Update the in-memory &lt;tt&gt;ServerParameters&lt;/tt&gt; affected by the reply.&lt;/li&gt;
	&lt;li&gt;Write a unit test to ensure that the polling job works as expected.&lt;/li&gt;
&lt;/ol&gt;
</description>
                <environment></environment>
        <key id="1956220">SERVER-62264</key>
            <summary>Create cluster server parameter polling job on mongos</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="varun.ravichandran@mongodb.com">Varun Ravichandran</assignee>
                                    <reporter username="varun.ravichandran@mongodb.com">Varun Ravichandran</reporter>
                        <labels>
                    </labels>
                <created>Fri, 24 Dec 2021 02:26:11 +0000</created>
                <updated>Sun, 29 Oct 2023 21:44:42 +0000</updated>
                            <resolved>Sat, 28 May 2022 03:40:01 +0000</resolved>
                                                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="4579306" author="xgen-internal-githook" created="Sat, 28 May 2022 03:13:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Varun Ravichandran&apos;, &apos;email&apos;: &apos;varun.ravichandran@mongodb.com&apos;, &apos;username&apos;: &apos;varunravi98&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62264&quot; title=&quot;Create cluster server parameter polling job on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62264&quot;&gt;&lt;del&gt;SERVER-62264&lt;/del&gt;&lt;/a&gt;: Periodically refresh cluster server parameters on mongos&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c9e3facf5dd94fd39066f54d44ee846f750c988b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c9e3facf5dd94fd39066f54d44ee846f750c988b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4579305" author="xgen-internal-githook" created="Sat, 28 May 2022 03:13:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Varun Ravichandran&apos;, &apos;email&apos;: &apos;varun.ravichandran@mongodb.com&apos;, &apos;username&apos;: &apos;varunravi98&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62264&quot; title=&quot;Create cluster server parameter polling job on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62264&quot;&gt;&lt;del&gt;SERVER-62264&lt;/del&gt;&lt;/a&gt;: Periodically refresh cluster server parameters on mongos&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/10gen/mongo-enterprise-modules/commit/8a7648e48035393e9418551c5f70647896cf0b19&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo-enterprise-modules/commit/8a7648e48035393e9418551c5f70647896cf0b19&lt;/a&gt;&lt;/p&gt;</comment>
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