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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-25630] Add validation of splitVector output</title>
                <link>https://jira.mongodb.org/browse/SERVER-25630</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It is possible for the &lt;tt&gt;splitVector&lt;/tt&gt; command to return split points that are outside the min/max range that it was told to search, when there is data corruption.  This can cause downstream problems for splitChunk (see &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25602&quot; title=&quot;splitChunk command with out of bound splitKeys fails, but still updates the chunks&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25602&quot;&gt;&lt;del&gt;SERVER-25602&lt;/del&gt;&lt;/a&gt;).&lt;/p&gt;

&lt;p&gt;To keep potential problems in splitVector contained, it could have one or both of the following sanity checks:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;Have a postcondition that all the split points being returned lie between min (inclusive) and max (exclusive).&lt;/li&gt;
	&lt;li&gt;Somewhat equivalently, have a loop invariant that the currKey variable always lies between min and max.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;(However, it may be more appropriate to fail the &lt;tt&gt;splitVector&lt;/tt&gt; command, rather than to completely abort the mongod with an fassert/invariant failure.)&lt;/p&gt;</description>
                <environment></environment>
        <key id="309241">SERVER-25630</key>
            <summary>Add validation of splitVector output</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-sharding">[DO NOT USE] Backlog - Sharding Team</assignee>
                                    <reporter username="kevin.pulo@mongodb.com">Kevin Pulo</reporter>
                        <labels>
                    </labels>
                <created>Tue, 16 Aug 2016 10:25:58 +0000</created>
                <updated>Tue, 6 Dec 2022 04:19:05 +0000</updated>
                            <resolved>Thu, 15 Dec 2016 16:30:56 +0000</resolved>
                                    <version>3.2.8</version>
                                                    <component>Querying</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>15</watches>
                                                                                                                <comments>
                            <comment id="1459002" author="schwerin" created="Thu, 15 Dec 2016 16:30:56 +0000"  >&lt;p&gt;Consumers of the output of splitVector should validate the output if it&apos;s important to them. Eventually, we may remove splitVector entirely, and replace it with a regular query. Expecting the query subsystem to detect arbitrary data corruption may be impossible in general.&lt;/p&gt;</comment>
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            <issuekey id="308912">SERVER-25602</issuekey>
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            <issuekey id="332444">SERVER-27082</issuekey>
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