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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-12603] Improve handling of wrong tag ranges</title>
                <link>https://jira.mongodb.org/browse/SERVER-12603</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;A customer defined tag ranges for a collection but used the wrong shard key in sh.addTagRange(). The collection was sharded on (files_id:1,n:1) but the tag ranges defined for _id. (This was a GridFS fs.chunks collection.)&lt;/p&gt;

&lt;p&gt;The sh.addTagRange() command worked without error, but the balancer failed as soon as it got to the offending definition (you could see that in the log files). As a result, none of the collections were properly balanced (because it failed before it started doing anything).&lt;/p&gt;

&lt;p&gt;I see two desirable improvements:&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;The sh.addTagRange() command should fail if the shard key definition does not match.&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;In the event of a wrong setting for one collection, the balancer should still balance any other collections, rather than failing completely.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="109558">SERVER-12603</key>
            <summary>Improve handling of wrong tag ranges</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="andre.spiegel@mongodb.com">Andre Spiegel</reporter>
                        <labels>
                    </labels>
                <created>Tue, 4 Feb 2014 17:53:13 +0000</created>
                <updated>Tue, 4 Feb 2014 17:59:43 +0000</updated>
                            <resolved>Tue, 4 Feb 2014 17:59:34 +0000</resolved>
                                    <version>2.4.9</version>
                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="493115" author="scotthernandez" created="Tue, 4 Feb 2014 17:59:34 +0000"  >&lt;p&gt;dup of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6357&quot; title=&quot;Add tag based sharding commands &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6357&quot;&gt;&lt;del&gt;SERVER-6357&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="493113" author="scotthernandez" created="Tue, 4 Feb 2014 17:59:14 +0000"  >&lt;p&gt;Balancing is per collection and should not fail completely if there is a problem with one collection. Please file a bug (not improvement) if you can reproduce that and remove it from here.&lt;/p&gt;</comment>
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