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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>[SERVER-42037] Expose WiredTiger block-manager stats with scale support</title>
                <link>https://jira.mongodb.org/browse/SERVER-42037</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&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;</description>
                <environment></environment>
        <key id="831457">SERVER-42037</key>
            <summary>Expose WiredTiger block-manager stats with scale support</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="13201">Fixed</resolution>
                                        <assignee username="daniel.ernst@mongodb.com">Daniel Ernst</assignee>
                                    <reporter username="luke.prochazka@mongodb.com">Luke Prochazka</reporter>
                        <labels>
                    </labels>
                <created>Tue, 2 Jul 2019 07:22:58 +0000</created>
                <updated>Sun, 29 Oct 2023 22:19:22 +0000</updated>
                            <resolved>Fri, 10 Jan 2020 16:23:04 +0000</resolved>
                                    <version>4.0.10</version>
                                    <fixVersion>4.3.3</fixVersion>
                                    <component>Diagnostics</component>
                    <component>Storage</component>
                    <component>WiredTiger</component>
                                        <votes>3</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="2725122" author="xgen-internal-githook" created="Tue, 14 Jan 2020 19:38:45 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Ernst&apos;, &apos;email&apos;: &apos;daniel.ernst@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42037&quot; title=&quot;Expose WiredTiger block-manager stats with scale support&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42037&quot;&gt;&lt;del&gt;SERVER-42037&lt;/del&gt;&lt;/a&gt; Add requires_persistence to freeStorageSize jstest&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cadd9e64d3cfb405b3e5231e873729f12d315e35&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cadd9e64d3cfb405b3e5231e873729f12d315e35&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2718614" author="xgen-internal-githook" created="Fri, 10 Jan 2020 15:19:14 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Ernst&apos;, &apos;email&apos;: &apos;daniel.ernst@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-42037&quot; title=&quot;Expose WiredTiger block-manager stats with scale support&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-42037&quot;&gt;&lt;del&gt;SERVER-42037&lt;/del&gt;&lt;/a&gt; Add freeListSize collection stat with scale support&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/989d23805572e6db103b64f3de76ffa7359a00cd&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/989d23805572e6db103b64f3de76ffa7359a00cd&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10320">
                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="1083983">DOCS-13334</issuekey>
        </issuelink>
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                                        <issuelink>
            <issuekey id="1450450">SERVER-50491</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1665215">SERVER-55652</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1462216">SERVER-50756</issuekey>
        </issuelink>
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                            <customfieldvalue>Added freeStorageSize field to db.collection.stats() output.&lt;br/&gt;
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