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    <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-77090] Prevent ChunkMap to be constructed with gaps or overlapping chunks</title>
                <link>https://jira.mongodb.org/browse/SERVER-77090</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, the ChunkMap &lt;a href=&quot;https://github.com/mongodb/mongo/blob/0ceb784512f81f77f0bc55001f83ca77d1aa1d84/src/mongo/s/chunk_manager.cpp#L164-L175&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;fails construction or the incremental update if the given chunks contain gaps or overlapping chunks&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;These inconsistencies are only detected if the involved chunks belong to different shards.&lt;/p&gt;

&lt;p&gt;Additionally, overlaps are correctly detected only if they are partial. If one chunk is completely included in the other, no error will be thrown (e.g., &lt;span class=&quot;error&quot;&gt;&amp;#91;0, 5&amp;#93;&lt;/span&gt; and &lt;span class=&quot;error&quot;&gt;&amp;#91;0, 10&amp;#93;&lt;/span&gt;)&lt;/p&gt;</description>
                <environment></environment>
        <key id="2339542">SERVER-77090</key>
            <summary>Prevent ChunkMap to be constructed with gaps or overlapping chunks</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="13203">Gone away</resolution>
                                        <assignee username="tommaso.tocci@mongodb.com">Tommaso Tocci</assignee>
                                    <reporter username="tommaso.tocci@mongodb.com">Tommaso Tocci</reporter>
                        <labels>
                    </labels>
                <created>Fri, 12 May 2023 16:23:36 +0000</created>
                <updated>Fri, 27 Oct 2023 20:44:46 +0000</updated>
                            <resolved>Fri, 25 Aug 2023 08:05:13 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="5658585" author="tommaso.tocci" created="Fri, 25 Aug 2023 08:05:13 +0000"  >&lt;p&gt;Done as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-71627&quot; title=&quot;Refreshed cached collection route info will severely block all client request when a cluster with 1 million chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-71627&quot;&gt;&lt;del&gt;SERVER-71627&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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