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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>
    </build-info>


<item>
            <title>[SERVER-56934] Improve collMod API for time-series expireAfterSeconds</title>
                <link>https://jira.mongodb.org/browse/SERVER-56934</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The API for specifying TTL on a time-series collection looks like this:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;db.createCollection(&apos;ts&apos;, {timeseries: {timeField: &apos;t&apos;, expireAfterSeconds: 3600}}); &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;However, to change the &quot;expireAfterSeconds&quot; value, users have to specify a completely different &quot;clusteredIndex&quot; option:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;db.runCommand({collMod: &apos;ts&apos;, clusteredIndex: {expireAfterSeconds: 10}}) &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;This is confusing and we should make the API consistent between operations.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1715091">SERVER-56934</key>
            <summary>Improve collMod API for time-series expireAfterSeconds</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="gregory.noma@mongodb.com">Gregory Noma</assignee>
                                    <reporter username="louis.williams@mongodb.com">Louis Williams</reporter>
                        <labels>
                    </labels>
                <created>Thu, 13 May 2021 22:20:05 +0000</created>
                <updated>Mon, 13 Nov 2023 14:18:18 +0000</updated>
                            <resolved>Mon, 24 May 2021 14:59:54 +0000</resolved>
                                                    <fixVersion>5.0.0-rc0</fixVersion>
                    <fixVersion>5.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4108016" author="JIRAUSER1259052" created="Wed, 6 Oct 2021 18:54:24 +0000"  >&lt;p&gt;Updating the fixversion since branching activities occurred yesterday. This ticket will be in rc0 when it&#8217;s been triggered. For more active release information, please keep an eye on #server-release. Thank you!&lt;/p&gt;</comment>
                            <comment id="3819895" author="xgen-internal-githook" created="Mon, 24 May 2021 20:31:35 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56934&quot; title=&quot;Improve collMod API for time-series expireAfterSeconds&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56934&quot;&gt;&lt;del&gt;SERVER-56934&lt;/del&gt;&lt;/a&gt; Make expireAfterSeconds a top-level collection option&lt;/p&gt;

&lt;p&gt;(cherry picked from commit b173494aa6b84b5d44c5f958fd78dd469596a314)&lt;br/&gt;
Branch: v5.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e465a2c8dcc8d8f0676eaf266e809a71d946c07c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e465a2c8dcc8d8f0676eaf266e809a71d946c07c&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3817845" author="xgen-internal-githook" created="Mon, 24 May 2021 14:27:27 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Gregory Noma&apos;, &apos;email&apos;: &apos;gregory.noma@gmail.com&apos;, &apos;username&apos;: &apos;gregorynoma&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-56934&quot; title=&quot;Improve collMod API for time-series expireAfterSeconds&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-56934&quot;&gt;&lt;del&gt;SERVER-56934&lt;/del&gt;&lt;/a&gt; Make expireAfterSeconds a top-level collection option&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/b173494aa6b84b5d44c5f958fd78dd469596a314&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/b173494aa6b84b5d44c5f958fd78dd469596a314&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3778210" author="louis.williams" created="Mon, 17 May 2021 20:09:54 +0000"  >&lt;p&gt;I discussed with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=geert.bosch&quot; class=&quot;user-hover&quot; rel=&quot;geert.bosch&quot;&gt;geert.bosch&lt;/a&gt;&#160;(CC &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=michael.gargiulo&quot; class=&quot;user-hover&quot; rel=&quot;michael.gargiulo&quot;&gt;michael.gargiulo&lt;/a&gt;) and we agreed on the following:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Promote &quot;expireAfterSeconds&quot; to a top-level field of the collection options, not as a specific property of the &quot;timeseries&quot; options.&lt;/li&gt;
	&lt;li&gt;The &quot;clusteredIndex&quot; option becomes an optional boolean flag and continues to have all of the same limitations (i.e. may only be passed when creating a buckets collection).&#160;&lt;/li&gt;
	&lt;li&gt;collMod should accept the &quot;expireAfterSeconds&quot; option as a top-level field of the command.&lt;/li&gt;
&lt;/ul&gt;
</comment>
                    </comments>
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            <issuekey id="1649240">SERVER-55203</issuekey>
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                            <customfieldvalue>For time-series collections, the `expireAfterSeconds` options is now specified as a part of the top-level collection options, rather than being nested inside the `timeseries` subobject. i.e.&lt;br/&gt;
&lt;br/&gt;
{create: &amp;quot;coll&amp;quot;, timeseries: {timeField: &amp;quot;time&amp;quot;}, expireAfterSeconds: 10}&lt;br/&gt;
&lt;br/&gt;
&lt;br/&gt;
When manually creating a time-series buckets collection, the `clusteredIndex` option now takes a boolean, rather than an object. i.e.&lt;br/&gt;
&lt;br/&gt;
{create: &amp;quot;system.buckets.coll&amp;quot;, clusteredIndex: true}&lt;br/&gt;
&lt;br/&gt;
&lt;br/&gt;
When using collMod to change the `expireAfterSeconds` of a time-series collection, `expireAfterSeconds` is now a top-level option and the previous `clusteredIndex` option has been removed. i.e.&lt;br/&gt;
&lt;br/&gt;
{collMod: &amp;quot;coll&amp;quot;, expireAfterSeconds: 20}</customfieldvalue>

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