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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <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>[DOCS-13334] Investigate changes in SERVER-42037: Expose WiredTiger block-manager stats with scale support</title>
                <link>https://jira.mongodb.org/browse/DOCS-13334</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;

    &lt;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;    Added freeStorageSize field to db.collection.stats() output.&lt;br/&gt;
freeStorageSize = file bytes available for reuse. Currently only outputted for wiredTiger collections.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;

&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    Presently the commands &lt;tt&gt;db.stats()&lt;/tt&gt; and &lt;tt&gt;db.collection.stats()&lt;/tt&gt; both accept &lt;tt&gt;scale&lt;/tt&gt; parameters. The WiredTiger stats reported by &lt;tt&gt;db.collection.stats()&lt;/tt&gt; are hard coded by description and value to denote units in bytes only.&lt;/p&gt;

&lt;p&gt;This request is to expose some WiredTiger statistics by mapping them directly into a &lt;tt&gt;db.collection.stats()&lt;/tt&gt; method to support the scale option.&lt;/p&gt;

&lt;p&gt;Notably the WiredTiger &quot;block-manager&quot; stats of interest (but not limited to):&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;db.collection.stats( { scale: 1 }).storageSize maps to &quot;wiredTiger&quot;.&quot;block-manager&quot;.&quot;file size in bytes&quot;&lt;/li&gt;
	&lt;li&gt;db.collection.stats( { scale: 1 }).freeListSize maps to &quot;wiredTiger&quot;.&quot;block-manager&quot;.&quot;file bytes available for reuse&quot;&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;


&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="1083983">DOCS-13334</key>
            <summary>Investigate changes in SERVER-42037: Expose WiredTiger block-manager stats with scale support</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                            <label>docs-administration</label>
                    </labels>
                <created>Fri, 10 Jan 2020 16:23:07 +0000</created>
                <updated>Mon, 13 Nov 2023 18:11:56 +0000</updated>
                            <resolved>Fri, 6 Mar 2020 01:48:44 +0000</resolved>
                                                    <fixVersion>4.3.3</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2947530" author="xgen-internal-githook" created="Fri, 6 Mar 2020 01:48:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;kay-kim&apos;, &apos;name&apos;: &apos;Kay Kim&apos;, &apos;email&apos;: &apos;kay.kim@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-13334&quot; title=&quot;Investigate changes in SERVER-42037: Expose WiredTiger block-manager stats with scale support&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-13334&quot;&gt;&lt;del&gt;DOCS-13334&lt;/del&gt;&lt;/a&gt;: 4.4 freeStorageSize in collStats&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/f80f8e84b7ffeedb7fb9178338b45a87896b8d25&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/f80f8e84b7ffeedb7fb9178338b45a87896b8d25&lt;/a&gt;&lt;/p&gt;</comment>
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