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    <title>MongoDB Jira</title>
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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-15574] [SERVER] Investigate changes in SERVER-69128: Server-side document hashing</title>
                <link>https://jira.mongodb.org/browse/DOCS-15574</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;    We previously introduced a new &lt;tt&gt;$toHashedIndexKey&lt;/tt&gt; expression via &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49214&quot; title=&quot;Add $toHashedIndexKey expression&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49214&quot;&gt;&lt;del&gt;SERVER-49214&lt;/del&gt;&lt;/a&gt; but it looks like we did not document it. We should do so as there are use cases for it and there is lack of awareness about the existing expression.&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;    When verifying clusters for logical consistency as part of the verifier project, we can speed the process up by computing hashes server-side instead of transferring full documents over the network to the verifier process and computing the hashes there. Verification speed matters, as it&apos;s on the critical path for reducing downtime for MongoDB migrations.&lt;/p&gt;

&lt;p&gt;One potential option could be to introduce a new operator in the aggregation pipeline.&lt;/p&gt;
</description>
                <environment></environment>
        <key id="2122935">DOCS-15574</key>
            <summary>[SERVER] Investigate changes in SERVER-69128: Server-side document hashing</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="joseph.dougherty@mongodb.com">Joseph Dougherty</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Fri, 26 Aug 2022 12:42:26 +0000</created>
                <updated>Mon, 30 Oct 2023 19:50:30 +0000</updated>
                            <resolved>Mon, 9 Oct 2023 18:56:34 +0000</resolved>
                                                    <fixVersion>Server_Docs_20231030</fixVersion>
                                    <component>manual</component>
                        <due>Mon, 9 Oct 2023 00:00:00 +0000</due>
                            <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5019172" author="JIRAUSER1257483" created="Wed, 30 Nov 2022 16:08:26 +0000"  >&lt;p&gt;This issue is solved by &lt;a href=&quot;https://jira.mongodb.org/browse/MONGOSH-1050&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/MONGOSH-1050&lt;/a&gt;. This helper method is already documented here: &lt;a href=&quot;https://www.mongodb.com/docs/manual/reference/method/convertShardKeyToHashed/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://www.mongodb.com/docs/manual/reference/method/convertShardKeyToHashed/&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1919985">MONGOSH-1050</issuekey>
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