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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-21797] Simplify find batching logic</title>
                <link>https://jira.mongodb.org/browse/SERVER-21797</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The size of the result batch returned from a legacy OP_QUERY find or a find command is determined as follows:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;If there is no batchSize set, add documents to the batch until the message size exceeds 1MB or we have 101 results.&lt;/li&gt;
	&lt;li&gt;If there is a batchSize set, add documents to the batch until the message size exceeds 4MB or we have enough documents to satisfy the user-provided batchSize.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;We should consider make the following improvements:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Always size the batch at 16MB, rather than sometimes using 1MB and sometimes using 4MB.&lt;/li&gt;
	&lt;li&gt;Enforce a maximum message size of 16MB, rather than stopping once we have &lt;em&gt;exceeded&lt;/em&gt; 16MB.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="242807">SERVER-21797</key>
            <summary>Simplify find batching logic</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="9">Done</resolution>
                                        <assignee username="david.storch@mongodb.com">David Storch</assignee>
                                    <reporter username="david.storch@mongodb.com">David Storch</reporter>
                        <labels>
                    </labels>
                <created>Tue, 8 Dec 2015 18:28:13 +0000</created>
                <updated>Mon, 26 Nov 2018 22:21:15 +0000</updated>
                            <resolved>Thu, 21 Jan 2016 20:46:32 +0000</resolved>
                                                    <fixVersion>3.3.1</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>12</watches>
                                                                                                                <comments>
                            <comment id="1150433" author="xgen-internal-githook" created="Thu, 21 Jan 2016 20:42:25 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;dstorch&apos;, u&apos;name&apos;: u&apos;David Storch&apos;, u&apos;email&apos;: u&apos;david.storch@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-21797&quot; title=&quot;Simplify find batching logic&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-21797&quot;&gt;&lt;del&gt;SERVER-21797&lt;/del&gt;&lt;/a&gt; unify cursor response commands to respond with up to 16MB of data&lt;/p&gt;

&lt;p&gt;Find, getMore, aggregate, listIndexes, and listCollections now will&lt;br/&gt;
always return 16MB per batch, unless a batchSize limits the number of&lt;br/&gt;
response documents.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/62172ae65d75c78e9e936784d0086c4b8133279b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/62172ae65d75c78e9e936784d0086c4b8133279b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1112489" author="charlie.swanson" created="Fri, 11 Dec 2015 20:23:04 +0000"  >&lt;p&gt;After discussing, we should make sure this won&apos;t be annoying/backwards-breaking for drivers, and use 16MB as the limit.&lt;/p&gt;</comment>
                    </comments>
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                    <name>Documented</name>
                                                                <inwardlinks description="is documented by">
                                        <issuelink>
            <issuekey id="260060">DOCS-7018</issuekey>
        </issuelink>
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                            <issuelinktype id="10010">
                    <name>Duplicate</name>
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                                        <issuelink>
            <issuekey id="28704">SERVER-4727</issuekey>
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            <issuekey id="224583">SERVER-19816</issuekey>
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            <issuelink>
            <issuekey id="308195">SERVER-25551</issuekey>
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