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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>[DRIVERS-1927] Investigate changes in PM-2188: Minimal support for sharding time-series collections</title>
                <link>https://jira.mongodb.org/browse/DRIVERS-1927</link>
                <project id="10980" key="DRIVERS">Drivers</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
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&lt;h4&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;Summary&lt;/h4&gt;

&lt;p&gt;Support sharded time-series collections&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Motivation&quot;&gt;&lt;/a&gt;Motivation&lt;/h4&gt;

&lt;p&gt;Add Sharding support for time series collection to allow for horizontal scaling of time series collections.&#160;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;CastofCharacters&quot;&gt;&lt;/a&gt;Cast of Characters&lt;/h4&gt;
&lt;ul&gt;
	&lt;li&gt;Product Owner:&lt;/li&gt;
	&lt;li&gt;Project Lead:&lt;/li&gt;
	&lt;li&gt;Program Manager: &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ana.meza&quot; class=&quot;user-hover&quot; rel=&quot;ana.meza&quot;&gt;ana.meza&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Drivers Contact:&lt;/li&gt;
&lt;/ul&gt;


&lt;h4&gt;&lt;a name=&quot;Documentation&quot;&gt;&lt;/a&gt;Documentation&lt;/h4&gt;

&lt;p&gt;&lt;a href=&quot;https://tinyurl.com/yykef2qm&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Scope Document&lt;/a&gt;&lt;br/&gt;
 &lt;a href=&quot;https://tinyurl.com/yx9jydo2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Technical Design Document&lt;/a&gt;&lt;/p&gt;
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                <environment></environment>
        <key id="1879876">DRIVERS-1927</key>
            <summary>Investigate changes in PM-2188: Minimal support for sharding time-series collections</summary>
                <type id="11" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14707&amp;avatarType=issuetype">Epic</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Tue, 21 Sep 2021 17:55:15 +0000</created>
                <updated>Fri, 27 May 2022 01:24:28 +0000</updated>
                            <resolved>Mon, 27 Sep 2021 16:42:19 +0000</resolved>
                                                                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="4087022" author="alexander.golin" created="Mon, 27 Sep 2021 16:42:20 +0000"  >&lt;p&gt;No driver changes needed.&lt;/p&gt;</comment>
                    </comments>
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                        <customfieldname>Server Compat</customfieldname>
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                                        <label>5.0</label>
            <label>5.1</label>
    
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                        <customfieldname>Upstream Changes Summary</customfieldname>
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                            <customfieldvalue>&lt;p&gt;Sharding a time-series collection is enabled.&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;The DDL operations for indexes and collMod are supported. The updating a granularity value is currently not supported on sharded clusters. We are planning to support this  in 5.3.&lt;/li&gt;
	&lt;li&gt;The sharding admins commands can only be run on the buckets namespace.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The shardCollection command accepts an optional timeseries parameter. &lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;If a timeseries collection already exists,&lt;/li&gt;
	&lt;li&gt;Either the timeseries spec of the shardCollection command must match the collection spec.&lt;/li&gt;
	&lt;li&gt;Or the timeseries spec should not be specified. In this case the timeseries spec from the collection catalog is inherited.&lt;/li&gt;
	&lt;li&gt;If there is no existing collection and the timeseries parameter is specified, a new time series collection will be created.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;The project is backported to 5.0.4 with the feature flag off. The feature will be enabled on 5.0.6&lt;/p&gt;</customfieldvalue>

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