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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>
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<item>
            <title>[SERVER-49821] Define utility function for getting recipient which would own document under new shard key</title>
                <link>https://jira.mongodb.org/browse/SERVER-49821</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Add a utility function to identify the recipient shard which would own the document under the new shard key pattern. &lt;em&gt;One idea is to get the ChunkManager for the new sharded collection (the one under the new shard key pattern), then use ChunkManager::findIntersectingChunk() to find the overlapping chunk on the recipient, and finally use Chunk::getShardId() to get the destined recipient. boost::none would be returned if there isn&apos;t an active resharding operation.&lt;/em&gt;&lt;/p&gt;

&lt;p&gt;&lt;b&gt;This function must return boost::none if the donor shard doesn&apos;t own the document under the current shard key pattern.&lt;/b&gt;&lt;/p&gt;

&lt;p/&gt;
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					&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;boost::optional&amp;lt;ShardId&amp;gt; getDestinedRecipient(&lt;/span&gt;&lt;span style=&quot;color: #006699; font-weight: bold; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;const&lt;/span&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; NamespaceString&amp;amp; sourceNss, BSONObj fullDocument);&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="1417720">SERVER-49821</key>
            <summary>Define utility function for getting recipient which would own document under new shard key</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="13201">Fixed</resolution>
                                        <assignee username="alex.taskov@mongodb.com">Alexander Taskov</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>PM-234-M2</label>
                            <label>PM-234-T-oplog-fetch</label>
                    </labels>
                <created>Thu, 23 Jul 2020 02:54:36 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:22 +0000</updated>
                            <resolved>Thu, 17 Sep 2020 00:26:30 +0000</resolved>
                                                    <fixVersion>4.8.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3398313" author="xgen-internal-githook" created="Wed, 16 Sep 2020 23:41:08 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Alex Taskov&apos;, &apos;email&apos;: &apos;alex.taskov@mongodb.com&apos;, &apos;username&apos;: &apos;alextaskov&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49821&quot; title=&quot;Define utility function for getting recipient which would own document under new shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49821&quot;&gt;&lt;del&gt;SERVER-49821&lt;/del&gt;&lt;/a&gt; Define utility function for getting recipient which would own document under new shard key&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/99c10e35e5e1afdacb9919be2e9f5f596da56a21&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/99c10e35e5e1afdacb9919be2e9f5f596da56a21&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3384161" author="haley.connelly" created="Wed, 9 Sep 2020 21:15:06 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49821&quot; title=&quot;Define utility function for getting recipient which would own document under new shard key&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49821&quot;&gt;&lt;del&gt;SERVER-49821&lt;/del&gt;&lt;/a&gt; &lt;del&gt;Will add a new OpObserver for Resharding.&lt;/del&gt;&lt;/p&gt;

&lt;p&gt;&lt;del&gt;Currently in progress, logic in ConfigServerOpObserver::onUpdate from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49572&quot; title=&quot;Implement onReshardingParticipantTransition in the ReshardingCoordinatorObserver&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49572&quot;&gt;&lt;del&gt;SERVER-49572&lt;/del&gt;&lt;/a&gt; needs to be relocated into the new observer.&lt;/del&gt;&#160;&lt;/p&gt;

&lt;p&gt;&lt;del&gt;If this ticket gets done first, the logic will be relocated as a part of&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49572&quot; title=&quot;Implement onReshardingParticipantTransition in the ReshardingCoordinatorObserver&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49572&quot;&gt;&lt;del&gt;SERVER-49572&lt;/del&gt;&lt;/a&gt;&#160;. Otherwise, a new ticket will get created.&lt;/del&gt;&lt;/p&gt;

&lt;p&gt;Edit: Never mind, this ticket didn&apos;t wind up needing to create a new observer.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10020">
                    <name>Gantt Dependency</name>
                                            <outwardlinks description="has to be done before">
                                        <issuelink>
            <issuekey id="1417721">SERVER-49822</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1417722">SERVER-49823</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1417723">SERVER-49824</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="has to be done after">
                                        <issuelink>
            <issuekey id="1412473">SERVER-49564</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1412514">SERVER-49572</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="1473779">SERVER-50921</issuekey>
        </issuelink>
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