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    <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-27713] Create OpObservers for config.collections writes to update the in-memory chunk metadata data structures</title>
                <link>https://jira.mongodb.org/browse/SERVER-27713</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;If the &apos;lastConsistentCollectionVersion&apos; field of the shard config.collections collection gets updated, a secondary must invalidate the in-memory chunk cache so that it refreshes.&lt;/li&gt;
	&lt;li&gt;If an entry in the config.collections collection on a shard gets removed, the in-memory chunk cache must be invalidated so that a refresh is attempted, and nothing found.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="346386">SERVER-27713</key>
            <summary>Create OpObservers for config.collections writes to update the in-memory chunk metadata data structures</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Tue, 17 Jan 2017 19:29:26 +0000</created>
                <updated>Wed, 6 Dec 2017 21:14:08 +0000</updated>
                            <resolved>Thu, 15 Jun 2017 13:20:04 +0000</resolved>
                                                    <fixVersion>3.5.9</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1597876" author="xgen-internal-githook" created="Thu, 15 Jun 2017 13:19:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;DiannaHohensee&apos;, u&apos;name&apos;: u&apos;Dianna Hohensee&apos;, u&apos;email&apos;: u&apos;dianna.hohensee@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27713&quot; title=&quot;Create OpObservers for config.collections writes to update the in-memory chunk metadata data structures&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27713&quot;&gt;&lt;del&gt;SERVER-27713&lt;/del&gt;&lt;/a&gt; create an OpObserver for shard chunk metadata updates&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9c3099ca1e4a33af44771543626601ab3eab8750&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9c3099ca1e4a33af44771543626601ab3eab8750&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1550790" author="dianna.hohensee" created="Mon, 17 Apr 2017 19:04:44 +0000"  >&lt;p&gt;Must decide whether to do this ticket or &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-28371&quot; title=&quot;after migration completes, shard donor primary sends oplog message to secondaries to invalidate chunk metadata&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-28371&quot;&gt;&lt;del&gt;SERVER-28371&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
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                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="365677">SERVER-28371</issuekey>
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                            <issuelinktype id="10020">
                    <name>Gantt Dependency</name>
                                            <outwardlinks description="has to be done before">
                                        <issuelink>
            <issuekey id="377150">SERVER-28948</issuekey>
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