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    <title>MongoDB Jira</title>
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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-25480] MmapV1ExtentManager::printFreeList is unused and should be removed</title>
                <link>https://jira.mongodb.org/browse/SERVER-25480</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The MmapV1ExtentManager::printFreeList method was initially written for MMAP V1 debugging purposes, but has not been used since 3.0.&lt;/p&gt;</description>
                <environment></environment>
        <key id="307191">SERVER-25480</key>
            <summary>MmapV1ExtentManager::printFreeList is unused and should be removed</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</type>
                                            <priority id="5" iconUrl="https://jira.mongodb.org/images/icons/priorities/trivial.svg">Trivial - P5</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="backlog-server-tuning">Backlog - Tuning Team</assignee>
                                    <reporter username="yjhjstz">Jianghua Yang</reporter>
                        <labels>
                            <label>bkp</label>
                    </labels>
                <created>Mon, 8 Aug 2016 09:45:27 +0000</created>
                <updated>Thu, 19 Jan 2017 22:43:44 +0000</updated>
                            <resolved>Mon, 15 Aug 2016 20:48:12 +0000</resolved>
                                                    <fixVersion>3.3.12</fixVersion>
                                    <component>MMAPv1</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1357397" author="kaloian.manassiev" created="Mon, 15 Aug 2016 20:48:12 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=yjhjstz&quot; class=&quot;user-hover&quot; rel=&quot;yjhjstz&quot;&gt;yjhjstz&lt;/a&gt;, thank you for your contribution. It has been pushed to the master branch.&lt;/p&gt;

&lt;p&gt;Best regards,&lt;br/&gt;
-Kal.&lt;/p&gt;</comment>
                            <comment id="1357389" author="xgen-internal-githook" created="Mon, 15 Aug 2016 20:45:12 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;name&apos;: u&apos;jianghua.yjh&apos;, u&apos;email&apos;: u&apos;jianghua.yjh@alibaba-inc.om&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25480&quot; title=&quot;MmapV1ExtentManager::printFreeList is unused and should be removed&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25480&quot;&gt;&lt;del&gt;SERVER-25480&lt;/del&gt;&lt;/a&gt; Remove unused MmapV1ExtentManager::printFreeList&lt;/p&gt;

&lt;p&gt;Closes #1105&lt;/p&gt;

&lt;p&gt;Signed-off-by: Kaloian Manassiev &amp;lt;kaloian.manassiev@mongodb.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/4755dfd9e068ea77081b8bda37bcc64ff9b47cd7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/4755dfd9e068ea77081b8bda37bcc64ff9b47cd7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1350787" author="yjhjstz" created="Mon, 8 Aug 2016 21:37:58 +0000"  >&lt;p&gt;Hi @Kaloian Manassiev , thanks for you reply.&lt;/p&gt;

&lt;p&gt;I will send a pr to just remove it.&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/pull/1105&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/pull/1105&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1350020" author="kaloian.manassiev" created="Mon, 8 Aug 2016 13:38:02 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=yjhjstz&quot; class=&quot;user-hover&quot; rel=&quot;yjhjstz&quot;&gt;yjhjstz&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Thank you for bringing this to our attention. You are completely correct that the &lt;tt&gt;printFreeList&lt;/tt&gt; method is not thread safe. It used to be called as part of &lt;a href=&quot;https://github.com/mongodb/mongo/blob/v2.4/src/mongo/db/pdfile.cpp#L973&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;another routine&lt;/a&gt;, which already held the collection S lock. As of version 3.0 this method is no longer necessary and we should just remove it.&lt;/p&gt;

&lt;p&gt;I am going to change the title slightly and if you still have interest, we would be happy to accept a pull request, which removes it.&lt;/p&gt;

&lt;p&gt;Thank you again.&lt;/p&gt;

&lt;p&gt;Best regards,&lt;br/&gt;
-Kal.&lt;/p&gt;</comment>
                            <comment id="1349975" author="yjhjstz" created="Mon, 8 Aug 2016 12:49:47 +0000"  >&lt;p&gt;may I send a PR?&lt;/p&gt;</comment>
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