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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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            <title>[SERVER-78137] HPDM fetcher/storage transaction batching for indexes</title>
                <link>https://jira.mongodb.org/browse/SERVER-78137</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;2- Investigate to increase the batch size of the storage transaction.&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Set fetcher batch size - setBatchSize (first batch), setLimit (2nd batch and beyond)&lt;/li&gt;
	&lt;li&gt;See if we still need to further batch the results of the fetcher so that we don&apos;t try to do too many collection/index inserts within one WUOW. - we should check that the size of a WUOW batch is &amp;lt; 16MB so that it doesn&apos;t go beyond the oplog entry size&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2369662">SERVER-78137</key>
            <summary>HPDM fetcher/storage transaction batching for indexes</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="9">Done</resolution>
                                        <assignee username="matt.kneiser@mongodb.com">Matt Kneiser</assignee>
                                    <reporter username="huayu.ouyang@mongodb.com">Huayu Ouyang</reporter>
                        <labels>
                    </labels>
                <created>Thu, 15 Jun 2023 17:53:27 +0000</created>
                <updated>Fri, 14 Jul 2023 23:42:47 +0000</updated>
                            <resolved>Fri, 14 Jul 2023 23:42:47 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5568352" author="JIRAUSER1263310" created="Fri, 14 Jul 2023 23:42:36 +0000"  >&lt;p&gt;I observed decreased throughput by aligning fetcher batches with commit batches.&lt;/p&gt;</comment>
                            <comment id="5550634" author="JIRAUSER1263310" created="Fri, 7 Jul 2023 14:58:24 +0000"  >&lt;p&gt;I&apos;m seeing quite a bit of batching that we are relying on in &lt;tt&gt;onBatchedWriteCommit&lt;/tt&gt;.&lt;/p&gt;

&lt;p&gt;For 75 fetcher batches, there are 375 sub-batches. This is an average of 4.9 sub-batches per batch.&lt;/p&gt;</comment>
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