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    <title>MongoDB Jira</title>
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    <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-10836] Docs for SERVER-31170: Add support for session and transaction number to benchRun</title>
                <link>https://jira.mongodb.org/browse/DOCS-10836</link>
                <project id="10380" key="DOCS">Documentation</project>
                    <description>&lt;h1&gt;&lt;a name=&quot;DocumentationRequestSummary%3A&quot;&gt;&lt;/a&gt;Documentation Request Summary: &lt;/h1&gt;

&lt;p&gt;Not sure if we document the &lt;tt&gt;benchRun&lt;/tt&gt; parameters somewhere, but if we do we need to include the two new parameters listed in the description.&lt;/p&gt;

&lt;h1&gt;&lt;a name=&quot;EngineeringTicketDescription%3A&quot;&gt;&lt;/a&gt;Engineering Ticket Description:&lt;/h1&gt;

&lt;p&gt;The benchRun utility is used by both mongo-perf and sys-perf. In order to test the performance of retryable writes we need to make benchRun use sessions and send transaction numbers.&lt;/p&gt;

&lt;p&gt;In order to achieve this, benchRun will be extended with the following options:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;useSessions (bool) - when this option is enabled, benchRun will call &lt;tt&gt;startSession&lt;/tt&gt; for each connection that it creates and will add the returned session id along with every command that it sends to the server.&lt;/li&gt;
	&lt;li&gt;useIdempotentWrites (bool) - when this option is enabled, benchRun will keep an always-incrementing transaction number for each workload thread and will send that as a &lt;tt&gt;txnNumber&lt;/tt&gt;.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Both these parameters may only be specified if &lt;tt&gt;useWriteCmd&lt;/tt&gt; is true and will fail with a &lt;tt&gt;BadOptions&lt;/tt&gt; error code otherwise.&lt;/p&gt;

&lt;p&gt;NOTE: The combination of sessionId/txnNumber makes the write retryable, but this ticket will not add any functionality to benchRun to actually retry since this is a much more involved task.&lt;/p&gt;</description>
                <environment></environment>
        <key id="433759">DOCS-10836</key>
            <summary>Docs for SERVER-31170: Add support for session and transaction number to benchRun</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="13203">Gone away</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="kay.kim@mongodb.com">Kay Kim</reporter>
                        <labels>
                    </labels>
                <created>Wed, 27 Sep 2017 15:45:06 +0000</created>
                <updated>Fri, 27 Oct 2023 20:16:25 +0000</updated>
                            <resolved>Mon, 20 Nov 2017 06:10:19 +0000</resolved>
                                                    <fixVersion>3.6.0-rc0</fixVersion>
                                    <component>manual</component>
                    <component>Server</component>
                        <due></due>
                            <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="1730047" author="kay.kim@10gen.com" created="Mon, 20 Nov 2017 06:10:19 +0000"  >&lt;p&gt;We don&apos;t have documentation on &lt;tt&gt;benchRun&lt;/tt&gt;.  &lt;/p&gt;</comment>
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