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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-6736] Comment on: &quot;manual/core/write-operations-atomicity.txt&quot;</title>
                <link>https://jira.mongodb.org/browse/DOCS-6736</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;p&gt;Two problems.&lt;/p&gt;

&lt;p&gt;First, the following sentence is clearly broken:&lt;/p&gt;

&lt;p&gt;An approach may be to create a unique index on a field (or fields) that should have only unique values (or unique combination of values) prevents duplicate insertions or updates that result in duplicate values.&lt;/p&gt;

&lt;p&gt;Second, the entire &quot;document-level atomicity&quot; discussion does not make clear whether said atomicity is at the level of the leaves (the documents embedded within documents) or the roots (the outer, enclosing documents that are direct members of the collection).&lt;/p&gt;
</description>
                <environment>Any&lt;br/&gt;
&lt;br/&gt;
*Location*: &lt;a href=&quot;https://docs.mongodb.org/manual/core/write-operations-atomicity/&quot;&gt;https://docs.mongodb.org/manual/core/write-operations-atomicity/&lt;/a&gt;&lt;br/&gt;
*User-Agent*: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Firefox/31.0&lt;br/&gt;
*Screen Resolution*: 1920 x 1200&lt;br/&gt;
*repo*: docs&lt;br/&gt;
*source*: core/write-operations-atomicity&lt;br/&gt;
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        <key id="242606">DOCS-6736</key>
            <summary>Comment on: &quot;manual/core/write-operations-atomicity.txt&quot;</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="5" iconUrl="https://jira.mongodb.org/images/icons/priorities/trivial.svg">Trivial - P5</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="kyle.suarez@mongodb.com">Kyle Suarez</assignee>
                                    <reporter username="xgen-internal-docs">Docs Collector User</reporter>
                        <labels>
                            <label>collector-298ba4e7</label>
                    </labels>
                <created>Mon, 7 Dec 2015 19:26:44 +0000</created>
                <updated>Thu, 8 Dec 2016 22:59:37 +0000</updated>
                            <resolved>Mon, 14 Dec 2015 16:54:07 +0000</resolved>
                                                                        <due></due>
                            <votes>1</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1338374" author="emily.hall" created="Wed, 27 Jul 2016 19:10:02 +0000"  >&lt;p&gt;Closed for housekeeping on 7/27/2016 by Emily Hall. &lt;br/&gt;
If you require additional support, please open a new ticket for prioritization. &lt;br/&gt;
Thanks,&lt;br/&gt;
Emily&lt;/p&gt;</comment>
                            <comment id="1113723" author="kyle.suarez" created="Mon, 14 Dec 2015 16:54:07 +0000"  >&lt;p&gt;Resolved in &lt;a href=&quot;https://github.com/mongodb/docs/commit/71306afc493d546fb185409a8f37b69282dd78b8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/71306afc493d546fb185409a8f37b69282dd78b8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1113654" author="xgen-internal-githook" created="Mon, 14 Dec 2015 16:06:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;ksuarz&apos;, u&apos;name&apos;: u&apos;Kyle Suarez&apos;, u&apos;email&apos;: u&apos;kyle.suarez@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-6736&quot; title=&quot;Comment on: &amp;quot;manual/core/write-operations-atomicity.txt&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-6736&quot;&gt;&lt;del&gt;DOCS-6736&lt;/del&gt;&lt;/a&gt; reword atomicity and unique indexes&lt;/p&gt;

&lt;p&gt;Signed-off-by: kay &amp;lt;kay.kim@10gen.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/71306afc493d546fb185409a8f37b69282dd78b8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/71306afc493d546fb185409a8f37b69282dd78b8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1113619" author="xgen-internal-githook" created="Mon, 14 Dec 2015 15:48:34 +0000"  >&lt;p&gt;This ticket number is incorrect; the commit below is for &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-6738&quot; title=&quot;Comment on: &amp;quot;manual/core/sharding-introduction.txt&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-6738&quot;&gt;&lt;del&gt;DOCS-6738&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;
&lt;blockquote&gt;
&lt;p&gt;Author:&lt;/p&gt;
&lt;div class=&quot;error&quot;&gt;&lt;span class=&quot;error&quot;&gt;Unknown macro: {u&amp;#39;username&amp;#39;}&lt;/span&gt; &lt;/div&gt;
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-6736&quot; title=&quot;Comment on: &amp;quot;manual/core/write-operations-atomicity.txt&amp;quot;&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-6736&quot;&gt;&lt;del&gt;DOCS-6736&lt;/del&gt;&lt;/a&gt; fix unit spacing&lt;/p&gt;

&lt;p&gt;Ensures that a space is placed between a number and a unit; for example,&lt;br/&gt;
&quot;64 GB&quot;.&lt;/p&gt;

&lt;p&gt;In the GridFS documentation, &quot;k&quot; has been converted to &quot;KB&quot; when discussing&lt;br/&gt;
chunk size.&lt;/p&gt;

&lt;p&gt;A hyphen is used for &quot;32-bit&quot; and &quot;64-bit.&quot;&lt;/p&gt;

&lt;p&gt;Signed-off-by: kay &amp;lt;kay.kim@10gen.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/5edb84f5c2655a2d721af1de0433bf1a42ed95d9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/5edb84f5c2655a2d721af1de0433bf1a42ed95d9&lt;/a&gt;&lt;/p&gt;&lt;/blockquote&gt;</comment>
                            <comment id="1112694" author="kyle.suarez" created="Fri, 11 Dec 2015 23:15:36 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=DUThibault&quot; class=&quot;user-hover&quot; rel=&quot;DUThibault&quot;&gt;DUThibault&lt;/a&gt;, thanks for the ticket. I&apos;m reworking the section on using unique indexes to read more clearly.&lt;/p&gt;

&lt;p&gt;As for your &quot;document-level atomicity&quot; question, I believe the documentation addresses that here:&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;In MongoDB, a write operation is atomic on the level of a single document, even if the operation modifies multiple embedded documents &lt;b&gt;within&lt;/b&gt; a single document.&lt;/p&gt;&lt;/blockquote&gt;</comment>
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