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    <title>MongoDB Jira</title>
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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-983] btree max key split</title>
                <link>https://jira.mongodb.org/browse/SERVER-983</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;when splitting a btree node, if the new key is greater than all the other keys, we should not do an even split, but a 90/10 split.&lt;br/&gt;
the specific case is ObjectId&lt;br/&gt;
because they are always increasing, the btree is always 50% full.&lt;br/&gt;
with this, it&apos;ll be 90% full&lt;/p&gt;</description>
                <environment></environment>
        <key id="11726">SERVER-983</key>
            <summary>btree max key split</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="aaron">Aaron Staple</assignee>
                                    <reporter username="eliot">Eliot Horowitz</reporter>
                        <labels>
                            <label>todo_in_code</label>
                    </labels>
                <created>Wed, 7 Apr 2010 17:08:19 +0000</created>
                <updated>Mon, 6 Nov 2017 17:54:39 +0000</updated>
                            <resolved>Thu, 8 Apr 2010 18:31:57 +0000</resolved>
                                                    <fixVersion>1.4.1</fixVersion>
                    <fixVersion>1.5.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="13887" author="eliot" created="Mon, 26 Apr 2010 13:51:19 +0000"  >&lt;p&gt;in a release&lt;/p&gt;</comment>
                            <comment id="13754" author="auto" created="Wed, 21 Apr 2010 18:28:21 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;login&apos;: &apos;RedBeard0531&apos;, &apos;name&apos;: &apos;Mathias Stearn&apos;, &apos;email&apos;: &apos;mathias@10gen.com&apos;}
&lt;p&gt;Message: Prevent modifying the shard key with $operator updates &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-983&quot; title=&quot;btree max key split&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-983&quot;&gt;&lt;del&gt;SERVER-983&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
&lt;a href=&quot;http://github.com/mongodb/mongo/commit/c4299e6c31b2e5e83611813d6ef66343f775458a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://github.com/mongodb/mongo/commit/c4299e6c31b2e5e83611813d6ef66343f775458a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="13523" author="auto" created="Thu, 8 Apr 2010 21:41:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;login&apos;: &apos;astaple&apos;, &apos;name&apos;: &apos;Aaron&apos;, &apos;email&apos;: &apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-983&quot; title=&quot;btree max key split&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-983&quot;&gt;&lt;del&gt;SERVER-983&lt;/del&gt;&lt;/a&gt; split bucket unevenly when inserting at high end&lt;br/&gt;
&lt;a href=&quot;http://github.com/mongodb/mongo/commit/601f3d44fae113086d110e168ae0ec02925de910&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://github.com/mongodb/mongo/commit/601f3d44fae113086d110e168ae0ec02925de910&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="13520" author="auto" created="Thu, 8 Apr 2010 17:43:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;login&apos;: &apos;astaple&apos;, &apos;name&apos;: &apos;Aaron&apos;, &apos;email&apos;: &apos;aaron@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-983&quot; title=&quot;btree max key split&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-983&quot;&gt;&lt;del&gt;SERVER-983&lt;/del&gt;&lt;/a&gt; split bucket unevenly when inserting at high end&lt;br/&gt;
&lt;a href=&quot;http://github.com/mongodb/mongo/commit/c4769e9f86b2cd256aca1276ece362f3795a1ee8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://github.com/mongodb/mongo/commit/c4769e9f86b2cd256aca1276ece362f3795a1ee8&lt;/a&gt;&lt;/p&gt;</comment>
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