<!-- 
RSS generated by JIRA (9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66) at Wed Feb 07 22:42:18 UTC 2024

It is possible to restrict the fields that are returned in this document by specifying the 'field' parameter in your request.
For example, to request only the issue key and summary append 'field=key&field=summary' to the URL of your request.
-->
<rss version="0.92" >
<channel>
    <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>[COMPASS-6208] Investigate changes in PM-2290: Make dedicated config servers optional for sharded clusters</title>
                <link>https://jira.mongodb.org/browse/COMPASS-6208</link>
                <project id="13182" key="COMPASS">Compass </project>
                    <description>    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Original Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;    The design document has more details about the changes which is being reviewed  in WRITING-8015. &lt;/p&gt;

&lt;p&gt;User-Facing Syntax Changes&lt;br/&gt;
Users will need to modify the change management  scripts if they wish to opt-in into new mode&lt;br/&gt;
Users will need to make the startup script roll forward/back compatible&lt;br/&gt;
Users will need to write the script performing the roll forward/back procedure&lt;/p&gt;

&lt;p&gt;API Changes &lt;br/&gt;
The internal SDAM protocol is likely to change. Will write SDAM tests, no spec changes required (do we have a document for internal SDAM extensions?).&lt;br/&gt;
We will avoid adding a new API version&lt;/p&gt;

&lt;p&gt;Config File Changes&lt;br/&gt;
The new &#8220;catalogShard&#8221; option is added to the &quot;sharding.clusterRole&quot; section of the config file, &#8220;--catalogShard&#8221; command line option is added to the mongod.&lt;/p&gt;

&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    +underlined text+&lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-color: #cccccc;border-style: dashed;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;border-bottom-style: dashed;border-bottom-color: #cccccc;background-color: #239eb0;&quot;&gt;&lt;b&gt;Epic Summary&lt;/b&gt;&lt;/div&gt;&lt;/div&gt;&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Summary&quot;&gt;&lt;/a&gt;Summary&lt;/h4&gt;

&lt;p&gt;We will make dedicated config servers optional for sharded clusters. Customers will have the option to designate a special shard that will hold both user data and config data. For one-shard clusters on Atlas, the shard will automatically be a special shard with both the shard role and config role.&lt;/p&gt;
&lt;h4&gt;&lt;a name=&quot;Motivation&quot;&gt;&lt;/a&gt;Motivation&lt;/h4&gt;

&lt;p&gt;Eliminating dedicated config servers will reduce both the cost and the architectural complexity involved in single-shard sharded clusters. On Atlas, a single-shard M30 sharded cluster costs TWICE as much as an M30 replica set. This project would bring cost parity to single-shard clusters on Atlas and will make it easier for customers to start out with a sharded cluster or switch to a sharded cluster.&lt;/p&gt;

&lt;p&gt;It also supports other use-cases:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;&lt;b&gt;Serverless v2&lt;/b&gt; -&#160;Serverless would like to remove the cost and complexity of dealing with config servers.&lt;/li&gt;
	&lt;li&gt;&lt;b&gt;Kubernetes&lt;/b&gt; - Some customers prefer to use a sharded cluster with a single shard because the mongos can act as a proxy. No config server would mean better resource utilization and less operational overhead&lt;/li&gt;
&lt;/ul&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;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=garaudy.etienne&quot; class=&quot;user-hover&quot; rel=&quot;garaudy.etienne&quot;&gt;garaudy.etienne&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Project Lead: &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=lamont.nelson&quot; class=&quot;user-hover&quot; rel=&quot;lamont.nelson&quot;&gt;lamont.nelson&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Program Manager: &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=ratika.gandhi&quot; class=&quot;user-hover&quot; rel=&quot;ratika.gandhi&quot;&gt;ratika.gandhi&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/yfdery24&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Product Description&lt;/a&gt;&lt;br/&gt;
 &lt;a href=&quot;https://tinyurl.com/ye3yecvy&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/yeu8pdnr&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;
&lt;/div&gt;&lt;/div&gt;
</description>
                <environment></environment>
        <key id="2160518">COMPASS-6208</key>
            <summary>Investigate changes in PM-2290: Make dedicated config servers optional for sharded clusters</summary>
                <type id="10501" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Investigation</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="-1">Unassigned</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Mon, 17 Oct 2022 15:51:02 +0000</created>
                <updated>Mon, 12 Jun 2023 22:09:31 +0000</updated>
                            <resolved>Wed, 3 May 2023 10:38:25 +0000</resolved>
                                                    <fixVersion>No version</fixVersion>
                                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5493656" author="dbeng-pm-bot" created="Mon, 12 Jun 2023 22:09:31 +0000"  >&lt;p&gt;&lt;em&gt;Fix Version updated for upstream PM-2290:&lt;/em&gt; &lt;br/&gt;
7.0.0-rc0&lt;/p&gt;</comment>
                            <comment id="5396856" author="JIRAUSER1261456" created="Wed, 3 May 2023 10:38:26 +0000"  >&lt;p&gt;This does not affect dev tools.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10011">
                    <name>Depends</name>
                                            <outwardlinks description="depends on">
                                                        </outwardlinks>
                                                        </issuelinktype>
                    </issuelinks>
                <attachments>
                    </attachments>
                <subtasks>
                    </subtasks>
                <customfields>
                                                <customfield id="customfield_10050" key="com.atlassian.jira.toolkit:comments">
                        <customfieldname># Replies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2.0</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_10055" key="com.atlassian.jira.ext.charting:firstresponsedate">
                        <customfieldname>Date of 1st Reply</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>Wed, 19 Oct 2022 10:30:11 +0000</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10052" key="com.atlassian.jira.toolkit:dayslastcommented">
                        <customfieldname>Days since reply</customfieldname>
                        <customfieldvalues>
                                        34 weeks, 2 days ago
    
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_18254" key="com.onresolve.jira.groovy.groovyrunner:scripted-field">
                        <customfieldname>Dependencies</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue><![CDATA[<s><a href='https://jira.mongodb.org/browse/PM-2290'>PM-2290</a></s>]]></customfieldvalue>


                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_15850" key="com.atlassian.jira.plugins.jira-development-integration-plugin:devsummary">
                        <customfieldname>Development</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                            <customfield id="customfield_10257" key="com.atlassian.jira.plugin.system.customfieldtypes:radiobuttons">
                        <customfieldname>Documentation Changes</customfieldname>
                        <customfieldvalues>
                                <customfieldvalue key="11861"><![CDATA[Not Needed]]></customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                    <customfield id="customfield_10857" key="com.pyxis.greenhopper.jira:gh-epic-link">
                        <customfieldname>Epic Link</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>COMPASS-5987</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                <customfield id="customfield_10057" key="com.atlassian.jira.toolkit:lastusercommented">
                        <customfieldname>Last comment by Customer</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>true</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10056" key="com.atlassian.jira.toolkit:lastupdaterorcommenter">
                        <customfieldname>Last commenter</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>dbeng-pm-bot</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_11151" key="com.atlassian.jira.toolkit:LastCommentDate">
                        <customfieldname>Last public comment date</customfieldname>
                        <customfieldvalues>
                            34 weeks, 2 days ago
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                        <customfield id="customfield_10051" key="com.atlassian.jira.toolkit:participants">
                        <customfieldname>Participants</customfieldname>
                        <customfieldvalues>
                                        <customfieldvalue>backlog-server-pm</customfieldvalue>
            <customfieldvalue>leroux.bodenstein@mongodb.com</customfieldvalue>
            <customfieldvalue>dbeng-pm-bot</customfieldvalue>
    
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                        <customfield id="customfield_14254" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Product Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|i1ebbb:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                <customfield id="customfield_12550" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>Rank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>2|i0wz6w:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                                                <customfield id="customfield_10558" key="com.pyxis.greenhopper.jira:gh-global-rank">
                        <customfieldname>Rank (Obsolete)</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>9223372036854775807</customfieldvalue>
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        <customfield id="customfield_10053" key="com.atlassian.jira.ext.charting:timeinstatus">
                        <customfieldname>Time In Status</customfieldname>
                        <customfieldvalues>
                            
                        </customfieldvalues>
                    </customfield>
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            <customfield id="customfield_14350" key="com.pyxis.greenhopper.jira:gh-lexo-rank">
                        <customfieldname>serverRank</customfieldname>
                        <customfieldvalues>
                            <customfieldvalue>1|i1dxgn:</customfieldvalue>

                        </customfieldvalues>
                    </customfield>
                                    </customfields>
    </item>
</channel>
</rss>