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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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            <title>[SERVER-23025] Add logging to inform where split points are chosen in shardCollection with hashed key</title>
                <link>https://jira.mongodb.org/browse/SERVER-23025</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;BF-1916 is an instance where shardCollection with a hashed key fails to split any chunks. There isn&apos;t enough logging to make it clear where in the logic it decided there should be no split points, and the failure has not been reproducible.&lt;/p&gt;

&lt;p&gt;The logs do say  &quot;going to create 1 chunk(s) for&quot;, which indicates that no split points were provided by the time ChunkManager::createFirstChunks starts its for-loop to perform splits.&lt;/p&gt;

&lt;p&gt;Add some logging to pinpoint where between the shardCollection command and the createFirstChunks call the split points can fail to be created, so that if the BF ever happens again it can be fixed. &lt;/p&gt;</description>
                <environment></environment>
        <key id="271147">SERVER-23025</key>
            <summary>Add logging to inform where split points are chosen in shardCollection with hashed key</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Wed, 9 Mar 2016 16:19:43 +0000</created>
                <updated>Wed, 5 Apr 2017 16:44:23 +0000</updated>
                            <resolved>Wed, 11 Jan 2017 15:33:55 +0000</resolved>
                                                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1474538" author="dianna.hohensee" created="Wed, 11 Jan 2017 15:33:55 +0000"  >&lt;p&gt;The BF has been resolved, closing as won&apos;t fix.&lt;/p&gt;</comment>
                            <comment id="1474043" author="kaloian.manassiev" created="Tue, 10 Jan 2017 22:35:51 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=dianna.hohensee&quot; class=&quot;user-hover&quot; rel=&quot;dianna.hohensee&quot;&gt;dianna.hohensee&lt;/a&gt;, can you add the appropriate logging here or close if the linked BF has been fixed?&lt;/p&gt;</comment>
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