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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-78839] Investigate changes needed in sharding POS services to use the new return value for instance lookup</title>
                <link>https://jira.mongodb.org/browse/SERVER-78839</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78108&quot; title=&quot;POS interface should expose its shutdown state &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78108&quot;&gt;&lt;del&gt;SERVER-78108&lt;/del&gt;&lt;/a&gt; added a new return value for instance lookup in order to differentiate if the instance is not present at all or the node is stepped down/shutdown when &lt;tt&gt;lookup()&lt;/tt&gt; returns a null instance. This ticket should investigate if sharding POS services should use this new return value and do different actions accordingly, in addition to&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78009&quot; title=&quot;shardSvrCommitReshardCollection command should fail recoverably if the node is shutting down&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78009&quot;&gt;&lt;del&gt;SERVER-78009&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2387924">SERVER-78839</key>
            <summary>Investigate changes needed in sharding POS services to use the new return value for instance lookup</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-cluster-scalability">Backlog - Cluster Scalability</assignee>
                                    <reporter username="wenbin.zhu@mongodb.com">Wenbin Zhu</reporter>
                        <labels>
                            <label>cs-subteam1</label>
                            <label>sharding-nyc-subteam1</label>
                    </labels>
                <created>Mon, 10 Jul 2023 19:38:24 +0000</created>
                <updated>Tue, 12 Dec 2023 17:03:50 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5567203" author="jason.chan" created="Fri, 14 Jul 2023 16:15:55 +0000"  >&lt;p&gt;hey &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=r.scott%40mongodb.com&quot; class=&quot;user-hover&quot; rel=&quot;r.scott@mongodb.com&quot;&gt;r.scott@mongodb.com&lt;/a&gt;, we didn&apos;t think it was erroneously assigned because &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78108&quot; title=&quot;POS interface should expose its shutdown state &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78108&quot;&gt;&lt;del&gt;SERVER-78108&lt;/del&gt;&lt;/a&gt; (a request from sharding) introduced a new API change in order to fix a bug related to resharding. This ticket is for the sharding team to investigate whether other sharding implementations that make use of POS might need the same fix. Since Service Arch only provides the underlying infrastructure (PrimaryOnlyService) and sharding builds on top of it, we think the Sharding team would be best fit since this will be changes in sharding code.&lt;/p&gt;</comment>
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