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    <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>[DOCS-12835] Investigate changes in SERVER-41490: Disable OP_MSG checksums for TLS connections</title>
                <link>https://jira.mongodb.org/browse/DOCS-12835</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;h3&gt;&lt;a name=&quot;SERVERticketdescription%3A&quot;&gt;&lt;/a&gt;SERVER ticket description: &lt;/h3&gt;

&lt;p&gt;We enabled OP_MSG checksums to catch data corruption on the wire in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28679&quot; title=&quot;Compute crc32c checksums on OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28679&quot;&gt;&lt;del&gt;SERVER-28679&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;This work of performing those checksums is extra cost though, and it is redundant when mixed with the hmacs required by tls.&lt;/p&gt;

&lt;p&gt;We lose little on the data integrity side and avoid overhead if we only perform check sums on non-tls connections.&lt;/p&gt;


&lt;h3&gt;&lt;a name=&quot;ChangeDescription%3A&quot;&gt;&lt;/a&gt;Change Description: &lt;/h3&gt;

&lt;p&gt;We should document that we&apos;ll never checksum op_msg packets if tls is on&lt;/p&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
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        <key id="817240">DOCS-12835</key>
            <summary>Investigate changes in SERVER-41490: Disable OP_MSG checksums for TLS connections</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="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Wed, 26 Jun 2019 22:40:01 +0000</created>
                <updated>Sun, 29 Oct 2023 13:56:16 +0000</updated>
                            <resolved>Tue, 6 Aug 2019 18:53:52 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                    <fixVersion>4.2.0-rc3</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2360109" author="xgen-internal-githook" created="Tue, 6 Aug 2019 18:53:28 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kay Kim&apos;, &apos;username&apos;: &apos;kay-kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12718&quot; title=&quot;Docs for SERVER-28679: Compute crc32c checksums on OP_MSG&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12718&quot;&gt;&lt;del&gt;DOCS-12718&lt;/del&gt;&lt;/a&gt;,&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12835&quot; title=&quot;Investigate changes in SERVER-41490: Disable OP_MSG checksums for TLS connections&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12835&quot;&gt;&lt;del&gt;DOCS-12835&lt;/del&gt;&lt;/a&gt; 4.2 checksum&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/2593510dec3c1f6218a5b5101d96671260f48e1e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/2593510dec3c1f6218a5b5101d96671260f48e1e&lt;/a&gt;&lt;/p&gt;</comment>
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