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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>
    </build-info>


<item>
            <title>[SERVER-74009] Add an LRU cache to limit the frequency of logging client metadata</title>
                <link>https://jira.mongodb.org/browse/SERVER-74009</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;tt&gt;ClientCache&lt;/tt&gt; implements an LRU cache and acts as the gatekeeper for logging client metadata for incoming gRPC streams. This ticket focuses on using the existing &lt;tt&gt;LRUCache&lt;/tt&gt; to implement a thread-safe &lt;tt&gt;ClientCache&lt;/tt&gt;, where:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;The constructor forwards the maximum cache size to the constructor of &lt;tt&gt;LRUCache&lt;/tt&gt;. By default, we will set this to 65,536, reserving about 1 MB of memory for the cache.&lt;/li&gt;
	&lt;li&gt;The &lt;tt&gt;add&lt;/tt&gt; method inserts clientId into the underlying cache:&lt;/li&gt;
	&lt;li&gt;If the &lt;tt&gt;clientId&lt;/tt&gt; already exists, the cache is updated and the &lt;tt&gt;add&lt;/tt&gt; method returns false.&lt;/li&gt;
	&lt;li&gt;Otherwise, it returns true.&lt;/li&gt;
&lt;/ul&gt;


&lt;p/&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;	&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;bool&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; add(&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;const&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; UUID&amp;amp; clientId) = 0;&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="2264822">SERVER-74009</key>
            <summary>Add an LRU cache to limit the frequency of logging client metadata</summary>
                <type id="2" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14711&amp;avatarType=issuetype">New Feature</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="patrick.freed@mongodb.com">Patrick Freed</assignee>
                                    <reporter username="amirsaman.memaripour@mongodb.com">Amirsaman Memaripour</reporter>
                        <labels>
                    </labels>
                <created>Tue, 14 Feb 2023 21:05:26 +0000</created>
                <updated>Sun, 29 Oct 2023 21:26:19 +0000</updated>
                            <resolved>Mon, 27 Feb 2023 21:54:14 +0000</resolved>
                                                    <fixVersion>7.0.0-rc0</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5234522" author="xgen-internal-githook" created="Mon, 27 Feb 2023 21:34:44 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Patrick Freed&apos;, &apos;email&apos;: &apos;patrick.freed@mongodb.com&apos;, &apos;username&apos;: &apos;patrickfreed&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-74009&quot; title=&quot;Add an LRU cache to limit the frequency of logging client metadata&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-74009&quot;&gt;&lt;del&gt;SERVER-74009&lt;/del&gt;&lt;/a&gt; Add an LRU cache for limiting the frequency of logging client metadata (#10846)&lt;/p&gt;

&lt;p&gt;This also adds move and copy constructors and assignment operators to the existing LRUCache type.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d8b5ef7502808c953bb8adc5f2c5e778e502a333&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d8b5ef7502808c953bb8adc5f2c5e778e502a333&lt;/a&gt;&lt;/p&gt;</comment>
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