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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-11201] Docs for SERVER-32173: Add deprecation warning to &quot;snapshot&quot; option on queries</title>
                <link>https://jira.mongodb.org/browse/DOCS-11201</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h1&gt;&lt;a name=&quot;DocumentationRequestSummary%3A&quot;&gt;&lt;/a&gt;Documentation Request Summary: &lt;/h1&gt;

&lt;p&gt;This change causes the server to log the following warning message:&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;The snapshot option is deprecated. See &lt;a href=&quot;http://dochub.mongodb.org/core/snapshot-deprecation&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://dochub.mongodb.org/core/snapshot-deprecation&lt;/a&gt;&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;This dochub link currently points to &lt;a href=&quot;https://docs.mongodb.com/manual/release-notes/3.6-compatibility/#general-compatibility-changes&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/manual/release-notes/3.6-compatibility/#general-compatibility-changes&lt;/a&gt;. It should be changed to point specifically to a note about snapshot&apos;s deprecation.&lt;/p&gt;

&lt;p&gt;As part of this note, we should explain how users should migrate their application off the deprecated option. Those users who are on MMAPv1 should instead issue a hint on the _id index. Users on other storage engines should issue a $natural hint. Under the hood, snapshot was simply implemented as one of these two hints, which results in a plan that will never return the same document twice. Therefore, issuing a hint directly should achieve the same effect.&lt;/p&gt;

&lt;p&gt;This option is being deprecated because it never offered true snapshot isolation.&lt;/p&gt;

&lt;h1&gt;&lt;a name=&quot;EngineeringTicketDescription%3A&quot;&gt;&lt;/a&gt;Engineering Ticket Description:&lt;/h1&gt;

&lt;p&gt;The old snapshot option is being deprecated, need to add warning to the logs.&lt;/p&gt;</description>
                <environment></environment>
        <key id="482365">DOCS-11201</key>
            <summary>Docs for SERVER-32173: Add deprecation warning to &quot;snapshot&quot; option on queries</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="kay.kim@mongodb.com">Kay Kim</reporter>
                        <labels>
                    </labels>
                <created>Fri, 12 Jan 2018 17:57:18 +0000</created>
                <updated>Sun, 29 Oct 2023 13:58:32 +0000</updated>
                            <resolved>Thu, 17 May 2018 19:17:52 +0000</resolved>
                                                    <fixVersion>3.7.1</fixVersion>
                    <fixVersion>3.6.1</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1914564" author="xgen-internal-githook" created="Fri, 8 Jun 2018 01:02:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;kay&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message:  &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11201&quot; title=&quot;Docs for SERVER-32173: Add deprecation warning to &amp;quot;snapshot&amp;quot; option on queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11201&quot;&gt;&lt;del&gt;DOCS-11201&lt;/del&gt;&lt;/a&gt;: refer to txn - tweak on 3.6-compat&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/21c5f7533187f5feec46336fe2ab91f77dc44633&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/21c5f7533187f5feec46336fe2ab91f77dc44633&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1914563" author="xgen-internal-githook" created="Fri, 8 Jun 2018 01:01:48 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;kay&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message:  &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11201&quot; title=&quot;Docs for SERVER-32173: Add deprecation warning to &amp;quot;snapshot&amp;quot; option on queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11201&quot;&gt;&lt;del&gt;DOCS-11201&lt;/del&gt;&lt;/a&gt;: refer to txn - tweak on 3.6-compat&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/6a14dce1fce36b845a77c50df5057f7d9da99f0b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/6a14dce1fce36b845a77c50df5057f7d9da99f0b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1914554" author="xgen-internal-githook" created="Fri, 8 Jun 2018 00:54:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;kay&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11201&quot; title=&quot;Docs for SERVER-32173: Add deprecation warning to &amp;quot;snapshot&amp;quot; option on queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11201&quot;&gt;&lt;del&gt;DOCS-11201&lt;/del&gt;&lt;/a&gt;: refer to txn as alternative to removed isolated operator&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/cbff742862561b0ef9df0946d608429c90662490&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/cbff742862561b0ef9df0946d608429c90662490&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1894502" author="xgen-internal-githook" created="Thu, 17 May 2018 19:39:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;kay&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11201&quot; title=&quot;Docs for SERVER-32173: Add deprecation warning to &amp;quot;snapshot&amp;quot; option on queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11201&quot;&gt;&lt;del&gt;DOCS-11201&lt;/del&gt;&lt;/a&gt;: add blurb for deprecation of snapshot for non-mmapv1 engine&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/55c0051de363397603ee5e75e9d798286f30d4e5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/55c0051de363397603ee5e75e9d798286f30d4e5&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1894418" author="xgen-internal-githook" created="Thu, 17 May 2018 19:16:24 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;kay&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-11201&quot; title=&quot;Docs for SERVER-32173: Add deprecation warning to &amp;quot;snapshot&amp;quot; option on queries&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-11201&quot;&gt;&lt;del&gt;DOCS-11201&lt;/del&gt;&lt;/a&gt;: add blurb for deprecation of snapshot for non-mmapv1 engine&lt;br/&gt;
Branch: v3.6&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/ace95c928f0b5b9020063b4dde00a5744cc5c37c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/ace95c928f0b5b9020063b4dde00a5744cc5c37c&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="468228">SERVER-32173</issuekey>
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