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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-22898] High fragmentation on WiredTiger databases under write workloads</title>
                <link>https://jira.mongodb.org/browse/SERVER-22898</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="268825">SERVER-22898</key>
            <summary>High fragmentation on WiredTiger databases under write workloads</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="9">Done</resolution>
                                        <assignee username="ramon.fernandez@mongodb.com">Ramon Fernandez Marina</assignee>
                                    <reporter username="ramon.fernandez@mongodb.com">Ramon Fernandez Marina</reporter>
                        <labels>
                            <label>code-and-test</label>
                    </labels>
                <created>Mon, 29 Feb 2016 19:20:44 +0000</created>
                <updated>Thu, 17 Nov 2016 19:05:28 +0000</updated>
                            <resolved>Mon, 29 Feb 2016 19:22:31 +0000</resolved>
                                                    <fixVersion>3.0.10</fixVersion>
                    <fixVersion>3.2.4</fixVersion>
                                    <component>WiredTiger</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1194195" author="ramon.fernandez" created="Sun, 6 Mar 2016 13:41:51 +0000"  >&lt;p&gt;Here&apos;s the commit for 3.2.4, which happened before this ticket was created:&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;Author:{u&apos;name&apos;: u&apos;Ramon Fernandez&apos;, u&apos;email&apos;: u&apos;ramon@mongodb.com&apos;}&lt;br/&gt;
Message: Import wiredtiger-wiredtiger-2.7.0-650-g5cdd3e3.tar.gz from wiredtiger branch mongodb-3.2&lt;/p&gt;

&lt;p&gt;ref: 07966a4..5cdd3e3&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22437&quot; title=&quot;Coverity analysis defect 77704: Redundant test&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22437&quot;&gt;&lt;del&gt;SERVER-22437&lt;/del&gt;&lt;/a&gt;  Coverity analysis defect 77704: Redundant test&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22438&quot; title=&quot;Coverity analysis defect 77705: Dereference before null check&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22438&quot;&gt;&lt;del&gt;SERVER-22438&lt;/del&gt;&lt;/a&gt;  Coverity analysis defect 77705: Dereference before null check&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22676&quot; title=&quot;WiredTiger fails to open databases created by 3.0.0 or 3.0.1&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22676&quot;&gt;&lt;del&gt;SERVER-22676&lt;/del&gt;&lt;/a&gt;  WiredTiger fails to open databases created by 3.0.0 or 3.0.1&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2130&quot; title=&quot;Improve on-disk page utilization with random workloads&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2130&quot;&gt;&lt;del&gt;WT-2130&lt;/del&gt;&lt;/a&gt;       Improve on-disk page utlilization with random workloads&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2215&quot; title=&quot;WT_LSN needs to support atomic reads and updates&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2215&quot;&gt;&lt;del&gt;WT-2215&lt;/del&gt;&lt;/a&gt;       WT_LSN needs to support atomic reads and updates&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2295&quot; title=&quot;WT_SESSION.create does a full-scan of the main table&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2295&quot;&gt;&lt;del&gt;WT-2295&lt;/del&gt;&lt;/a&gt;       WT_SESSION.create does a full-scan of the main table&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2352&quot; title=&quot;Allow build and test without requiring lz4&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2352&quot;&gt;&lt;del&gt;WT-2352&lt;/del&gt;&lt;/a&gt;       Allow build and test without requiring lz4&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2356&quot; title=&quot;log scan advances to next log file on partially written record&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2356&quot;&gt;&lt;del&gt;WT-2356&lt;/del&gt;&lt;/a&gt;       log scan advances to next log file on partially written record&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2363&quot; title=&quot;Remove built in support for bzip2&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2363&quot;&gt;&lt;del&gt;WT-2363&lt;/del&gt;&lt;/a&gt;       Remove built in support for bzip2&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2368&quot; title=&quot;row-store can pass garbage keys to collator functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2368&quot;&gt;&lt;del&gt;WT-2368&lt;/del&gt;&lt;/a&gt;       row-store can pass garbage keys to collator functions&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2369&quot; title=&quot;Use C compiler to detect headers instead of C++ compiler&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2369&quot;&gt;&lt;del&gt;WT-2369&lt;/del&gt;&lt;/a&gt;       Use C compiler to detect headers instead of C++ compiler&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2371&quot; title=&quot;parent split cannot access the page after page-index swap&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2371&quot;&gt;&lt;del&gt;WT-2371&lt;/del&gt;&lt;/a&gt;       parent split cannot access the page after page-index swap&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2372&quot; title=&quot;WiredTiger windows builder fails with C4005 against the &amp;quot;inline&amp;quot; macro&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2372&quot;&gt;&lt;del&gt;WT-2372&lt;/del&gt;&lt;/a&gt;       WiredTiger windows builder fails with C4005 against the &quot;inline&quot; macro&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2377&quot; title=&quot;WTPERF doesn&amp;#39;t compile in Windows under MSVC&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2377&quot;&gt;&lt;del&gt;WT-2377&lt;/del&gt;&lt;/a&gt;       WTPERF doesn&apos;t compile in Windows under MSVC&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2378&quot; title=&quot;Tasks time out on LSM builder&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2378&quot;&gt;&lt;del&gt;WT-2378&lt;/del&gt;&lt;/a&gt;       Tasks time out on LSM builder&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2397&quot; title=&quot;Cursor traversal from end of the tree skips records.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2397&quot;&gt;&lt;del&gt;WT-2397&lt;/del&gt;&lt;/a&gt;       Cursor traversal from end of the tree skips records.&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/WT-60&quot; title=&quot;Big endian port&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-60&quot;&gt;&lt;del&gt;WT-60&lt;/del&gt;&lt;/a&gt;         Big endian port&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f77630a9e971cae1f921292ea31d9d40a4b096b8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f77630a9e971cae1f921292ea31d9d40a4b096b8&lt;/a&gt;&lt;/p&gt;&lt;/blockquote&gt;</comment>
                            <comment id="1188115" author="xgen-internal-githook" created="Mon, 29 Feb 2016 19:40:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;name&apos;: u&apos;Ramon Fernandez&apos;, u&apos;email&apos;: u&apos;ramon@mongodb.com&apos;}
&lt;p&gt;Message: Import wiredtiger-wiredtiger-mongodb-3.0.9-3-g3dbc6c6.tar.gz from wiredtiger branch mongodb-3.0&lt;/p&gt;

&lt;p&gt;ref: 62b3ca8..3dbc6c6&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/WT-2130&quot; title=&quot;Improve on-disk page utilization with random workloads&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-2130&quot;&gt;&lt;del&gt;WT-2130&lt;/del&gt;&lt;/a&gt;       Improve on-disk page utlilization with random workloads&lt;br/&gt;
&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22898&quot; title=&quot;High fragmentation on WiredTiger databases under write workloads&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22898&quot;&gt;&lt;del&gt;SERVER-22898&lt;/del&gt;&lt;/a&gt;  High fragmentation on WiredTiger databases under write workloads&lt;br/&gt;
Branch: v3.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c62a2810e54ed4ac7b98c75896b614d3ff3eb619&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c62a2810e54ed4ac7b98c75896b614d3ff3eb619&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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