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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-37987] Use finer grained locks for on step up reads and writes</title>
                <link>https://jira.mongodb.org/browse/SERVER-37987</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently we do many reads and writes on step up to write to the oplog, drop temporary collections, and initialize sharding state. These are guarded by the GlobalLock in mode X but to remove that lock we need these reads and writes to take their own locks.&lt;/p&gt;</description>
                <environment></environment>
        <key id="630321">SERVER-37987</key>
            <summary>Use finer grained locks for on step up reads and writes</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="13201">Fixed</resolution>
                                        <assignee username="judah.schvimer@mongodb.com">Judah Schvimer</assignee>
                                    <reporter username="judah.schvimer@mongodb.com">Judah Schvimer</reporter>
                        <labels>
                            <label>prepare_durability</label>
                    </labels>
                <created>Wed, 7 Nov 2018 19:10:17 +0000</created>
                <updated>Sun, 29 Oct 2023 22:26:47 +0000</updated>
                            <resolved>Tue, 13 Nov 2018 22:46:41 +0000</resolved>
                                                    <fixVersion>4.1.6</fixVersion>
                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2060881" author="judah.schvimer" created="Tue, 13 Nov 2018 22:46:29 +0000"  >&lt;p&gt;These are the only new locks that need to be taken. I audited every other caller in the &quot;on step up&quot; hook and believe that they all take their own locks or use DBDirectClient  which takes its own locks. &lt;/p&gt;</comment>
                            <comment id="2060852" author="xgen-internal-githook" created="Tue, 13 Nov 2018 22:26:07 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Judah Schvimer&apos;, &apos;email&apos;: &apos;judah@mongodb.com&apos;, &apos;username&apos;: &apos;judahschvimer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37987&quot; title=&quot;Use finer grained locks for on step up reads and writes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37987&quot;&gt;&lt;del&gt;SERVER-37987&lt;/del&gt;&lt;/a&gt; acquire correct locks when dropping temp collections on step up&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1a2e677310e647e9cb3781f1cc904f86c41c5b12&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1a2e677310e647e9cb3781f1cc904f86c41c5b12&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2060851" author="xgen-internal-githook" created="Tue, 13 Nov 2018 22:26:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Judah Schvimer&apos;, &apos;email&apos;: &apos;judah@mongodb.com&apos;, &apos;username&apos;: &apos;judahschvimer&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-37987&quot; title=&quot;Use finer grained locks for on step up reads and writes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-37987&quot;&gt;&lt;del&gt;SERVER-37987&lt;/del&gt;&lt;/a&gt; acquire global IX lock for step-up oplog write&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e606e00f3a4b7e88f7e84c4497f39dea32e65049&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e606e00f3a4b7e88f7e84c4497f39dea32e65049&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="630322">SERVER-37988</issuekey>
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            <issuekey id="611497">SERVER-37381</issuekey>
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