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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>[DOCS-12628] Docs for SERVER-40337: Remove oldestOpenUnpreparedReadTimestamp</title>
                <link>https://jira.mongodb.org/browse/DOCS-12628</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h2&gt;&lt;a name=&quot;Description&quot;&gt;&lt;/a&gt;Description&lt;/h2&gt;
&lt;blockquote&gt;
&lt;h3&gt;&lt;a name=&quot;Description%3A&quot;&gt;&lt;/a&gt;Description: &lt;/h3&gt;

&lt;p&gt;Remove transactions.oldestOpenUnpreparedReadTimestamp from serverStatus (see &lt;a href=&quot;https://docs.mongodb.com/master/reference/command/serverStatus/#serverstatus.transactions.oldestOpenUnpreparedReadTimestamp&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://docs.mongodb.com/master/reference/command/serverStatus/#serverstatus.transactions.oldestOpenUnpreparedReadTimestamp&lt;/a&gt;)&lt;/p&gt;

&lt;h3&gt;&lt;a name=&quot;EngineeringTicketDescription%3A&quot;&gt;&lt;/a&gt;Engineering Ticket Description:&lt;/h3&gt;

&lt;p&gt;The &lt;tt&gt;serverStatus&lt;/tt&gt; metric &lt;tt&gt;oldestOpenUnpreparedReadTimestamp&lt;/tt&gt; is named to represent the oldest read timestamp of any unprepared transaction. However, as described in &lt;a href=&quot;https://jira.mongodb.org/browse/WT-4154&quot; title=&quot;Surface the oldest read timestamp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-4154&quot;&gt;&lt;del&gt;WT-4154&lt;/del&gt;&lt;/a&gt;, this value is the &lt;tt&gt;oldest_active_reader&lt;/tt&gt;, which is the minimum read timestamp of all active readers. Timestamped reads can occur without multi-document transactions, e.g. all secondary reads, so this value exists even when the server has no open, unprepared transactions. We will remove this &lt;tt&gt;serverStatus&lt;/tt&gt; metrics, and the oldest active read timestamp will be added to WT statistics in&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/WT-4704&quot; title=&quot;Add statistic tracking oldest active read timestamp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;WT-4704&quot;&gt;&lt;del&gt;WT-4704&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;&lt;/blockquote&gt;

&lt;h2&gt;&lt;a name=&quot;Scopeofchanges&quot;&gt;&lt;/a&gt;Scope of changes&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;ImpacttoOtherDocs&quot;&gt;&lt;/a&gt;Impact to Other Docs&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;MVP%28WorkandDate%29&quot;&gt;&lt;/a&gt;MVP (Work and Date)&lt;/h2&gt;

&lt;h2&gt;&lt;a name=&quot;Resources%28ScopeorDesignDocs%2CInvision%2Cetc.%29&quot;&gt;&lt;/a&gt;Resources (Scope or Design Docs, Invision, etc.)&lt;/h2&gt;
</description>
                <environment></environment>
        <key id="737167">DOCS-12628</key>
            <summary>Docs for SERVER-40337: Remove oldestOpenUnpreparedReadTimestamp</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="kay.kim@mongodb.com">Kay Kim</assignee>
                                    <reporter username="kay.kim@mongodb.com">Kay Kim</reporter>
                        <labels>
                            <label>prepare_diagnostics</label>
                    </labels>
                <created>Fri, 12 Apr 2019 13:50:01 +0000</created>
                <updated>Mon, 13 Nov 2023 18:23:02 +0000</updated>
                            <resolved>Tue, 21 May 2019 17:01:15 +0000</resolved>
                                                    <fixVersion>4.1.10</fixVersion>
                    <fixVersion>Server_Docs_20231030</fixVersion>
                    <fixVersion>Server_Docs_20231106</fixVersion>
                    <fixVersion>Server_Docs_20231105</fixVersion>
                    <fixVersion>Server_Docs_20231113</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2254431" author="xgen-internal-githook" created="Tue, 21 May 2019 17:00:18 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kay.kim@10gen.com&apos;, &apos;name&apos;: &apos;Kay Kim&apos;, &apos;username&apos;: &apos;kay-kim&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12628&quot; title=&quot;Docs for SERVER-40337: Remove oldestOpenUnpreparedReadTimestamp&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12628&quot;&gt;&lt;del&gt;DOCS-12628&lt;/del&gt;&lt;/a&gt;,&lt;a href=&quot;https://jira.mongodb.org/browse/DOCS-12594&quot; title=&quot;Docs for SERVER-39989: Use a config.transactions find command for the begin fetching timestamp in initial sync&quot; class=&quot;issue-link&quot; data-issue-key=&quot;DOCS-12594&quot;&gt;&lt;del&gt;DOCS-12594&lt;/del&gt;&lt;/a&gt;: rm oldestOpenUnpreparedReadTimestamp and oldestActiveOplogEntryTimestamp from serverstatus output&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/docs/commit/ae1569b63f5f8b1f45d14e6deda416ace4b5c0f3&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/docs/commit/ae1569b63f5f8b1f45d14e6deda416ace4b5c0f3&lt;/a&gt;&lt;/p&gt;</comment>
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