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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-13864] Investigate changes in SERVER-34118: CurOp should record number of upserts performed</title>
                <link>https://jira.mongodb.org/browse/DOCS-13864</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;div class=&quot;panel&quot; style=&quot;background-color: #c2d2c2;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;background-color: #239eb0;&quot;&gt;&lt;b&gt;Downstream Change Summary&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #c2d2c2;&quot;&gt;
&lt;p&gt;    In the explain output wouldInsert boolean flag is replaced with nWouldUpsert counter indicating number of documents upserted during update. This counter can be only 1 or 0.&lt;br/&gt;
In mongod and mongos logs upsert boolean flag is replaced with nUpserted counter indicating number of documents upserted during update. On mongod this counter is always 1 or 0 (because each individual update is logged separately). On mongos this counter can be larger than 1 if update is batched.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;
&lt;h2&gt;&lt;a name=&quot;DescriptionofLinkedTicket&quot;&gt;&lt;/a&gt;Description of Linked Ticket&lt;/h2&gt;
&lt;p&gt;    Currently, update operations set a boolean flag in &lt;tt&gt;CurOp&lt;/tt&gt; when they produce an upsert. This is sufficient on mongoD, since we log and profile each of the individual operations from the update command separately, and so there can only be at most one upsert per op.&lt;/p&gt;

&lt;p&gt;However, we are now logging slow ops on mongoS as well (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-14900&quot; title=&quot;log slow queries on mongos&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-14900&quot;&gt;&lt;del&gt;SERVER-14900&lt;/del&gt;&lt;/a&gt;), which dispatches writes in batches and reports the aggregated results; there may therefore be multiple upserts per op. Setting the &lt;tt&gt;upserted&lt;/tt&gt; boolean results in a logline which reads &lt;tt&gt;upsert:1&lt;/tt&gt;, which may be highly misleading if more than a single upsert was performed.&lt;/p&gt;

&lt;p&gt;We should replace the &lt;tt&gt;upsert&lt;/tt&gt; bool in CurOp with an integer &lt;tt&gt;nUpserted&lt;/tt&gt; and log the actual number of documents upserted, on both mongoD and mongoS.&lt;/p&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="1464095">DOCS-13864</key>
            <summary>Investigate changes in SERVER-34118: CurOp should record number of upserts performed</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="12300">Won&apos;t Do</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="backlog-server-pm">Backlog - Core Eng Program Management Team</reporter>
                        <labels>
                    </labels>
                <created>Mon, 7 Sep 2020 09:57:48 +0000</created>
                <updated>Mon, 13 Nov 2023 18:03:12 +0000</updated>
                                                            <fixVersion>4.7.0</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>4</watches>
                                                                                                                <comments>
                            <comment id="4940365" author="edu.bot" created="Mon, 31 Oct 2022 16:04:11 +0000"  >&lt;p&gt;Hello! This ticket has been closed due to inactivity. If you believe this ticket is still important, please reopen it and leave a comment to explain why. Thank you!&lt;/p&gt;</comment>
                    </comments>
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