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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>[DOCS-1342] Write Scaling docs should mention hashed shard key</title>
                <link>https://jira.mongodb.org/browse/DOCS-1342</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;Our &lt;a href=&quot;http://docs.mongodb.org/manual/core/sharded-cluster-internals/#sharding-shard-key-write-scaling&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;write scaling documentation&lt;/a&gt; currently states:&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Typically, a computed shard key that has some amount of &#8220;randomness,&#8221; such as ones that include a cryptographic hash (i.e. MD5 or SHA1) of other content in the document, will allow the cluster to scale write operations. However, random shard keys do not typically provide query isolation, which is another important characteristic of shard keys.&lt;/p&gt;&lt;/blockquote&gt;
&lt;p&gt;This should be updated to refer to our hashed sharding docs. Note that I came to this page from the &lt;a href=&quot;http://docs.mongodb.org/manual/tutorial/select-shard-key/#create-a-shard-key-that-has-high-randomness&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;high randomness section&lt;/a&gt; of the &quot;Select a Shard Key&quot; page. &lt;/p&gt;</description>
                <environment></environment>
        <key id="70867">DOCS-1342</key>
            <summary>Write Scaling docs should mention hashed shard key</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="9">Done</resolution>
                                        <assignee username="zack.brown@10gen.com">Zack Brown</assignee>
                                    <reporter username="james.wahlin@mongodb.com">James Wahlin</reporter>
                        <labels>
                    </labels>
                <created>Fri, 5 Apr 2013 14:14:49 +0000</created>
                <updated>Thu, 26 Sep 2013 21:26:18 +0000</updated>
                            <resolved>Thu, 12 Sep 2013 19:05:22 +0000</resolved>
                                                                        <due></due>
                            <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="424384" author="auto" created="Fri, 13 Sep 2013 14:08:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;tychoish&apos;, u&apos;name&apos;: u&apos;Sam Kleinman&apos;, u&apos;email&apos;: u&apos;samk@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-1342&quot; title=&quot;Write Scaling docs should mention hashed shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-1342&quot;&gt;&lt;del&gt;DOCS-1342&lt;/del&gt;&lt;/a&gt;: edits&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/8ad5c147142e347b5a85ce0823f0825d81c783bd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/8ad5c147142e347b5a85ce0823f0825d81c783bd&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="424383" author="auto" created="Fri, 13 Sep 2013 14:08:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;Zackrobat&apos;, u&apos;name&apos;: u&apos;Zack Brown&apos;, u&apos;email&apos;: u&apos;zack.brown@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-1342&quot; title=&quot;Write Scaling docs should mention hashed shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-1342&quot;&gt;&lt;del&gt;DOCS-1342&lt;/del&gt;&lt;/a&gt;: Write Scaling docs should mention hashed shard key&lt;/p&gt;

&lt;p&gt;Signed-off-by: Sam Kleinman &amp;lt;samk@10gen.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/d8ede209a46902188cb250c034140d30ee6240a4&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/d8ede209a46902188cb250c034140d30ee6240a4&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="409958" author="zack.brown@10gen.com" created="Fri, 23 Aug 2013 15:02:34 +0000"  >&lt;p&gt;From tychoish:&lt;/p&gt;

&lt;p&gt; &lt;a href=&quot;http://docs.mongodb.org/manual/tutorial/choose-a-shard-key/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/tutorial/choose-a-shard-key/&lt;/a&gt; should have a more explicit mention of hashed sharding&lt;/p&gt;

&lt;p&gt;and&lt;/p&gt;

&lt;p&gt;the point about the sharding-internals page should be applied to the new home for that content which is here: &lt;a href=&quot;http://docs.mongodb.org/manual/core/sharding-shard-key/#write-scaling&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://docs.mongodb.org/manual/core/sharding-shard-key/#write-scaling&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;    #write-scaling&lt;/p&gt;</comment>
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