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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-28630] Mongo zero size db folder is not clear on the disk</title>
                <link>https://jira.mongodb.org/browse/SERVER-28630</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi There, &lt;/p&gt;

&lt;p&gt;We using Mongo DB 3.2.6 to store log information, and store the log in db by its persistent time. After we drop the expired database, the database will not show by command &quot;show dbs&quot;. The database folder size is zero, and it is still exist on the disk.&lt;br/&gt;
Why the db.dropDatabase() cannot purge the zero folder on the disk?&lt;/p&gt;

&lt;p&gt;========================&lt;br/&gt;
106M    diagnostic.data&lt;br/&gt;
300M    journal&lt;br/&gt;
72K     local&lt;br/&gt;
64K     _mdb_catalog.wt&lt;br/&gt;
4.0K    mongod.lock&lt;br/&gt;
84K     sizeStorer.wt&lt;br/&gt;
4.0K    storage.bson&lt;br/&gt;
0       TrackingLogDB_2016121700_2017031700&lt;br/&gt;
0       TrackingLogDB_2016121800_2017031800&lt;br/&gt;
0       TrackingLogDB_2016121900_2017031900&lt;br/&gt;
0       TrackingLogDB_2016122000_2017032000&lt;br/&gt;
0       TrackingLogDB_2016122100_2017032100&lt;br/&gt;
0       TrackingLogDB_2016122200_2017032200&lt;br/&gt;
0       TrackingLogDB_2016122300_2017032300&lt;br/&gt;
0       TrackingLogDB_2016122400_2017032400&lt;br/&gt;
0       TrackingLogDB_2016122500_2017032500&lt;br/&gt;
0       TrackingLogDB_2016122600_2017032600&lt;br/&gt;
0       TrackingLogDB_2016122700_2017032700&lt;br/&gt;
0       TrackingLogDB_2016122800_2017032800&lt;br/&gt;
0       TrackingLogDB_2016122900_2017032900&lt;br/&gt;
0       TrackingLogDB_2016123000_2017033000&lt;br/&gt;
0       TrackingLogDB_2016123100_2017033100&lt;br/&gt;
0       TrackingLogDB_2017010100_2017040100&lt;br/&gt;
0       TrackingLogDB_2017010200_2017040200&lt;br/&gt;
0       TrackingLogDB_2017010300_2017040300&lt;br/&gt;
0       TrackingLogDB_2017010400_2017040400&lt;br/&gt;
3.7M    TrackingLogDB_2017010500_2017040500&lt;br/&gt;
3.7M    TrackingLogDB_2017010600_2017040600&lt;br/&gt;
3.7M    TrackingLogDB_2017010700_2017040700&lt;br/&gt;
3.6M    TrackingLogDB_2017010800_2017040800&lt;br/&gt;
3.5M    TrackingLogDB_2017010900_2017040900&lt;br/&gt;
========================&lt;/p&gt;

&lt;p&gt;Regards&lt;br/&gt;
Eric Huang&lt;/p&gt;</description>
                <environment>Operate System: CentOS 6.3 2.6.32-642.13.1.el6.x86_64</environment>
        <key id="370951">SERVER-28630</key>
            <summary>Mongo zero size db folder is not clear on the disk</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="3">Duplicate</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="eric_huang">eric_huang</reporter>
                        <labels>
                    </labels>
                <created>Wed, 5 Apr 2017 02:56:59 +0000</created>
                <updated>Wed, 5 Apr 2017 03:12:57 +0000</updated>
                            <resolved>Wed, 5 Apr 2017 03:12:57 +0000</resolved>
                                    <version>3.2 Required</version>
                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1541037" author="michael.cahill" created="Wed, 5 Apr 2017 03:12:23 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=eric_huang&quot; class=&quot;user-hover&quot; rel=&quot;eric_huang&quot;&gt;eric_huang&lt;/a&gt;, this is covered in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22985&quot; title=&quot;Allow dropDatabase to accept flags to delete underlying directory&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22985&quot;&gt;&lt;del&gt;SERVER-22985&lt;/del&gt;&lt;/a&gt;.  Please vote for that issue to indicate that you would like it addressed.&lt;/p&gt;</comment>
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