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            <title>[SERVER-4358] Preallocating should be configurable</title>
                <link>https://jira.mongodb.org/browse/SERVER-4358</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It would be nice to have preallocated database files be more configurable than &quot;on&quot; and &quot;off&quot;.  In our environment, we create a database per customer.  For each customer that does nothing, we still write a little bit of data to the database, therefore triggering preallocation.  So, each idle customer&apos;s preallocated file size on disk is 3x what it needs to be.&lt;/p&gt;

&lt;p&gt;I know of the noprealloc flag.  I would prefer something like preallocat=80%, or 50%, or whatever.  That is, a way to tell mongo &quot;don&apos;t preallocate a new file until you&apos;re actually close to needing it, and here&apos;s how close you should be&quot;.  I recognize the benefit of preallocation, and would like to keep the advantages, without the disadvantage of preallocating files that will never be used.&lt;/p&gt;</description>
                <environment></environment>
        <key id="25363">SERVER-4358</key>
            <summary>Preallocating should be configurable</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="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="rdickeyvii">Ross Dickey</reporter>
                        <labels>
                    </labels>
                <created>Wed, 23 Nov 2011 06:14:48 +0000</created>
                <updated>Tue, 6 Dec 2022 05:39:08 +0000</updated>
                            <resolved>Fri, 14 Sep 2018 20:19:32 +0000</resolved>
                                    <version>2.0.1</version>
                                                    <component>MMAPv1</component>
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