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        <build-date>13-04-2023</build-date>
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            <title>[SERVER-25337] Remove global lock in configsvr commit{split/merge/migrate} chunk commands</title>
                <link>https://jira.mongodb.org/browse/SERVER-25337</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;These instances of GlobalLock can be removed after 3.4 - they were only there for compatibility with 3.2 mongoses&lt;/p&gt;</description>
                <environment></environment>
        <key id="305080">SERVER-25337</key>
            <summary>Remove global lock in configsvr commit{split/merge/migrate} chunk commands</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="dianna.hohensee@mongodb.com">Dianna Hohensee</assignee>
                                    <reporter username="jess.fan">Jess Fan</reporter>
                        <labels>
                    </labels>
                <created>Fri, 29 Jul 2016 15:39:47 +0000</created>
                <updated>Wed, 5 Apr 2017 11:44:20 +0000</updated>
                            <resolved>Tue, 17 Jan 2017 20:47:51 +0000</resolved>
                                                    <fixVersion>3.5.2</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1478458" author="xgen-internal-githook" created="Tue, 17 Jan 2017 20:46:59 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;DiannaHohensee&apos;, u&apos;name&apos;: u&apos;Dianna Hohensee&apos;, u&apos;email&apos;: u&apos;dianna.hohensee@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25337&quot; title=&quot;Remove global lock in configsvr commit{split/merge/migrate} chunk commands&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25337&quot;&gt;&lt;del&gt;SERVER-25337&lt;/del&gt;&lt;/a&gt; Remove global lock in configsvr commit&lt;/p&gt;
{split/merge/migrate}
&lt;p&gt; chunk commands&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/adbd05f44bb218f60233493ecbda6f29c60aeeec&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/adbd05f44bb218f60233493ecbda6f29c60aeeec&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1471351" author="spencer" created="Fri, 6 Jan 2017 18:06:56 +0000"  >&lt;p&gt;Because it can now synchronize on the less-expensive _kChunkOpLock ResourceMutex, now that there&apos;s no concern of a 3.2 mongos modifying the config.chunks collection out from under it. &lt;/p&gt;</comment>
                            <comment id="1471308" author="dianna.hohensee" created="Fri, 6 Jan 2017 17:11:13 +0000"  >&lt;p&gt;Why do we want to get rid of the global lock for CommitChunkMigration? It&apos;s used to serialize commits, because the config server generates new ChunkVersion from the existing config.chunks data.&lt;/p&gt;</comment>
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