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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-63694] Accommodate WT-8170</title>
                <link>https://jira.mongodb.org/browse/SERVER-63694</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/browse/WT-8170&quot; title=&quot;Reduce complexity of timestamp usage assertion API code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-8170&quot;&gt;&lt;del&gt;WT-8170&lt;/del&gt;&lt;/a&gt; (broadly) aims to improve the WT timestamp assertions. This ticket is to make the accompanying changes for MDB. We&apos;ll the following changes:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Apply the &lt;tt&gt;mixed_mode&lt;/tt&gt; assertion to the following tables that currently have no assertions:
	&lt;ul&gt;
		&lt;li&gt;&lt;tt&gt;internal-&lt;/tt&gt;&lt;/li&gt;
		&lt;li&gt;&lt;del&gt;oplog&lt;/del&gt; (obsoleted as WT no longer saves TS information on logged tables and therefore disables assertions)&lt;/li&gt;
		&lt;li&gt;&lt;tt&gt;config.system.indexBuilds&lt;/tt&gt; (record store and indexes)&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;We expect to move &lt;tt&gt;config.system.indexBuilds&lt;/tt&gt; (in addition to the &lt;tt&gt;_mdb_catalog&lt;/tt&gt;, which currently has an out of timestamp order write and no assertions today) to &lt;tt&gt;ordered&lt;/tt&gt;. See &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60753&quot; title=&quot;Removing index build entries from &amp;#39;config.system.indexBuilds&amp;#39; can make mixed mode writes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60753&quot;&gt;&lt;del&gt;SERVER-60753&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-60754&quot; title=&quot;Setting multikey in _mdb_catalog can be out of timestamp order&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-60754&quot;&gt;&lt;del&gt;SERVER-60754&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;Ideally this patch can go in without causing any testing failures such that &lt;a href=&quot;https://jira.mongodb.org/browse/WT-8170&quot; title=&quot;Reduce complexity of timestamp usage assertion API code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-8170&quot;&gt;&lt;del&gt;WT-8170&lt;/del&gt;&lt;/a&gt; can be dropped at a later time. If that&apos;s not viable, we will coordinate a dance of:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Disable assertions in a patch&lt;/li&gt;
	&lt;li&gt;Drop &lt;a href=&quot;https://jira.mongodb.org/browse/WT-8170&quot; title=&quot;Reduce complexity of timestamp usage assertion API code&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-8170&quot;&gt;&lt;del&gt;WT-8170&lt;/del&gt;&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;Re-enable assertions&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1984176">SERVER-63694</key>
            <summary>Accommodate WT-8170</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="daniel.gottlieb@mongodb.com">Daniel Gottlieb</assignee>
                                    <reporter username="daniel.gottlieb@mongodb.com">Daniel Gottlieb</reporter>
                        <labels>
                    </labels>
                <created>Tue, 15 Feb 2022 20:31:01 +0000</created>
                <updated>Sun, 29 Oct 2023 21:42:26 +0000</updated>
                            <resolved>Thu, 17 Feb 2022 19:16:30 +0000</resolved>
                                                    <fixVersion>6.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="4362311" author="xgen-internal-githook" created="Thu, 17 Feb 2022 19:13:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Daniel Gottlieb&apos;, &apos;email&apos;: &apos;daniel.gottlieb@mongodb.com&apos;, &apos;username&apos;: &apos;dgottlieb&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-63694&quot; title=&quot;Accommodate WT-8170&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-63694&quot;&gt;&lt;del&gt;SERVER-63694&lt;/del&gt;&lt;/a&gt;: Recategorize WT timestamp assertions.&lt;/p&gt;

&lt;p&gt;Correct unittests to abide the ordered assertion.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/332b40e48e404d4d358119e199ef2c4c634a7c58&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/332b40e48e404d4d358119e199ef2c4c634a7c58&lt;/a&gt;&lt;/p&gt;</comment>
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