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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-39967] Add requires_snapshot_read tag to apply_ops_DDL_operation_does_not_take_global_X.js</title>
                <link>https://jira.mongodb.org/browse/SERVER-39967</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;b&gt;This is only a test-fix.&lt;/b&gt;&lt;/p&gt;

&lt;p&gt;apply_ops_DDL_operation_does_not_take_global_X.js makes sure the oplog application of all DDL operations will not take a Global X lock. It verifies that by hanging a read which takes a Global IS lock and then applying a bunch of DDL operations.&lt;/p&gt;

&lt;p&gt;However, applying DDL operations will also take a PBWM lock in X mode. The read will not take PBWM lock when snapshot read functionality is enabled. Otherwise, the read will take PBWM lock in IS mode, which blocks the DDL operations.&lt;/p&gt;

&lt;p&gt;Therefore, the test only works with storage engine with snapshot read support.&lt;/p&gt;</description>
                <environment></environment>
        <key id="710111">SERVER-39967</key>
            <summary>Add requires_snapshot_read tag to apply_ops_DDL_operation_does_not_take_global_X.js</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="13201">Fixed</resolution>
                                        <assignee username="xiangyu.yao@mongodb.com">Xiangyu Yao</assignee>
                                    <reporter username="xiangyu.yao@mongodb.com">Xiangyu Yao</reporter>
                        <labels>
                            <label>test-fix</label>
                    </labels>
                <created>Tue, 5 Mar 2019 18:44:32 +0000</created>
                <updated>Sun, 29 Oct 2023 22:23:16 +0000</updated>
                            <resolved>Wed, 6 Mar 2019 19:39:00 +0000</resolved>
                                                    <fixVersion>4.1.9</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2173150" author="xgen-internal-githook" created="Wed, 6 Mar 2019 19:38:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Xiangyu Yao&apos;, &apos;username&apos;: &apos;xy24&apos;, &apos;email&apos;: &apos;xiangyu.yao@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-39967&quot; title=&quot;Add requires_snapshot_read tag to apply_ops_DDL_operation_does_not_take_global_X.js&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-39967&quot;&gt;&lt;del&gt;SERVER-39967&lt;/del&gt;&lt;/a&gt; Add requires_snapshot_read tag to apply_ops_DDL_operation_does_not_take_global_X.js&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e2ed6a5b40ef30d683a94927024cab84a828b00f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e2ed6a5b40ef30d683a94927024cab84a828b00f&lt;/a&gt;&lt;/p&gt;</comment>
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