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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-80348] (SA) Spike/Investigate Having a Single ServiceContext manage multiple shard roles</title>
                <link>https://jira.mongodb.org/browse/SERVER-80348</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Part of our current potential design-plan to enable shards to act as routers involves registering dual implementations of modules that currently might be implemented separately on mongod and mongos with a single service context in a single process, and teaching the system to use the right modules given the &apos;shard role context&apos; of the calling code. Some examples of these modules include commands, MongoProcessInterfaces used by query, ServiceEntryPoints used to dispatch commands, etc. User and system operations should be &apos;tagged&apos; with the role they are utilizing the process as (i.e. router or shard), and that &apos;tag&apos; should be used to dispatch to the module that tag corresponds to. &lt;/p&gt;

&lt;p&gt;We need to get a concrete estimation into what exactly will be involved in this work to produce an accurate timeline. In this ticket, we&apos;ll complete a spike of the work described above, in an attempt to run some subset of sharding-oriented tests against a mongod with an embedded router. We&apos;ll track what work was necessary to achieve this POC, what obstacles we identified to product-ionizing this work, and produce a time estimate of how long we&apos;d expect this work to take. &lt;/p&gt;</description>
                <environment></environment>
        <key id="2424646">SERVER-80348</key>
            <summary>(SA) Spike/Investigate Having a Single ServiceContext manage multiple shard roles</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="9">Done</resolution>
                                        <assignee username="george.wangensteen@mongodb.com">George Wangensteen</assignee>
                                    <reporter username="george.wangensteen@mongodb.com">George Wangensteen</reporter>
                        <labels>
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                <created>Wed, 23 Aug 2023 17:57:07 +0000</created>
                <updated>Tue, 26 Sep 2023 14:38:17 +0000</updated>
                            <resolved>Fri, 8 Sep 2023 19:44:05 +0000</resolved>
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