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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-10659] Admin Data for Fragmentation and Index usage</title>
                <link>https://jira.mongodb.org/browse/SERVER-10659</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Please add an admin data structure to track the usage of indexes.  The amount of updates, the amount of user reads and other general usage stats.  This data structure can be stored in memory and does not need to be persisted to disk.  &lt;/p&gt;

&lt;p&gt;It would also be beneficial to have the ability to report fragmentation of collections and indexes (not contiguous on disk). &lt;/p&gt;</description>
                <environment>All</environment>
        <key id="88136">SERVER-10659</key>
            <summary>Admin Data for Fragmentation and Index usage</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="bhedge">Brandon Hedge</reporter>
                        <labels>
                            <label>index</label>
                            <label>stats</label>
                    </labels>
                <created>Sat, 31 Aug 2013 19:39:15 +0000</created>
                <updated>Wed, 23 Nov 2016 20:01:55 +0000</updated>
                            <resolved>Mon, 2 Sep 2013 21:25:56 +0000</resolved>
                                    <version>2.5.2</version>
                                                    <component>Index Maintenance</component>
                    <component>Performance</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="416377" author="dan@10gen.com" created="Mon, 2 Sep 2013 21:24:40 +0000"  >&lt;p&gt;Hi Brandon,&lt;/p&gt;

&lt;p&gt;We are continuously improving our server statistics.  I hope you&apos;re familiar with the stats currently available from &lt;a href=&quot;http://docs.mongodb.org/manual/reference/command/serverStatus/#indexcounters&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;&lt;tt&gt;db.serverStatus&lt;/tt&gt;&lt;/a&gt;.  What are the specific statistics you are looking for?&lt;/p&gt;

&lt;p&gt;Regarding deeper storage statistics, 2.4 released an experimental feature and accompanying visualizer (not recommended to be run on production system) which you can read about here:&lt;br/&gt;
&lt;a href=&quot;http://blog.mongodb.org/post/36157256399/storage-viz-storage-visualizers-and-commands-for&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://blog.mongodb.org/post/36157256399/storage-viz-storage-visualizers-and-commands-for&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;See and vote up similar tickets in this vein: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-7525&quot; title=&quot;Storage Metrics on Fragmentation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-7525&quot;&gt;&lt;del&gt;SERVER-7525&lt;/del&gt;&lt;/a&gt;, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-7593&quot; title=&quot;Add a new administrative command to provide aggregate statistics related to a collection&amp;#39;s storage layout.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-7593&quot;&gt;&lt;del&gt;SERVER-7593&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
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