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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-41105] Rename parallel batch writer &apos;mutex&apos; and &apos;mode&apos; to &apos;lock&apos; throughout the code</title>
                <link>https://jira.mongodb.org/browse/SERVER-41105</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We often refer to it as a mutex or mode, and in a couple places as a lock. Let&apos;s make it consistent.&lt;/p&gt;</description>
                <environment></environment>
        <key id="766333">SERVER-41105</key>
            <summary>Rename parallel batch writer &apos;mutex&apos; and &apos;mode&apos; to &apos;lock&apos; throughout the code</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="13201">Fixed</resolution>
                                        <assignee username="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="dianna.hohensee@mongodb.com">Dianna Hohensee</reporter>
                        <labels>
                    </labels>
                <created>Mon, 13 May 2019 12:54:56 +0000</created>
                <updated>Sun, 29 Oct 2023 22:21:07 +0000</updated>
                            <resolved>Tue, 18 Jun 2019 18:41:09 +0000</resolved>
                                                    <fixVersion>4.2.0-rc2</fixVersion>
                    <fixVersion>4.3.1</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="2289151" author="xgen-internal-githook" created="Tue, 18 Jun 2019 22:17:11 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Dianna Hohensee&apos;, &apos;email&apos;: &apos;dianna.hohensee@10gen.com&apos;, &apos;username&apos;: &apos;DiannaHohensee&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41105&quot; title=&quot;Rename parallel batch writer &amp;#39;mutex&amp;#39; and &amp;#39;mode&amp;#39; to &amp;#39;lock&amp;#39; throughout the code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41105&quot;&gt;&lt;del&gt;SERVER-41105&lt;/del&gt;&lt;/a&gt; Consistently refer to the PBWM lock in code and text&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 8f4b0b3817fbf48cc0025632802aec37d21946da)&lt;br/&gt;
Branch: v4.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/257f4475e13ed109ea9f6543a3ac1e465a858bbf&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/257f4475e13ed109ea9f6543a3ac1e465a858bbf&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2288836" author="xgen-internal-githook" created="Tue, 18 Jun 2019 18:35:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Dianna Hohensee&apos;, &apos;email&apos;: &apos;dianna.hohensee@10gen.com&apos;, &apos;username&apos;: &apos;DiannaHohensee&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-41105&quot; title=&quot;Rename parallel batch writer &amp;#39;mutex&amp;#39; and &amp;#39;mode&amp;#39; to &amp;#39;lock&amp;#39; throughout the code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-41105&quot;&gt;&lt;del&gt;SERVER-41105&lt;/del&gt;&lt;/a&gt; Consistently refer to the PBWM lock in code and text&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8f4b0b3817fbf48cc0025632802aec37d21946da&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8f4b0b3817fbf48cc0025632802aec37d21946da&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2287457" author="dianna.hohensee" created="Mon, 17 Jun 2019 17:57:17 +0000"  >&lt;p&gt;Yes, this will be backported to v4.2 ASAP. Thanks for keeping an eye on it &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/smile.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt; &lt;/p&gt;</comment>
                            <comment id="2287199" author="bruce.lucas@10gen.com" created="Mon, 17 Jun 2019 15:13:30 +0000"  >&lt;p&gt;If I&apos;m reading this correctly it changes the serverStatus metric locks.ParallelBatchWriter to locks.parallelBatchWriterMode? Since this metric was introduced in 4.2 by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39860&quot; title=&quot;Separate reporting of RSTL and PBWM locks metrics in serverStatus and currentOp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39860&quot;&gt;&lt;del&gt;SERVER-39860&lt;/del&gt;&lt;/a&gt;, would it be possible to backport this change to 4.2 to land in GA (or -rc1?) so that we have a more stable serverStatus schema?&lt;/p&gt;</comment>
                            <comment id="2245792" author="schwerin" created="Tue, 14 May 2019 13:59:47 +0000"  >&lt;p&gt;It&apos;s the &quot;parallel batch writer mode lock&quot;. It synchronizes between operations that can only occur when in parallel batch writer mode and operations that can only occur outside parallel batch writer mode.&lt;/p&gt;</comment>
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