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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>[JAVA-2231] Legacy driver sends nToReturn of -1 for OP_GET_MORE for an aggregation with batch size of 1</title>
                <link>https://jira.mongodb.org/browse/JAVA-2231</link>
                <project id="10006" key="JAVA">Java Driver</project>
                    <description>&lt;p&gt;The following code:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;   collection.aggregate(pipeline, AggregationOptions.builder()&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;                                           .batchSize(&lt;/span&gt;&lt;span style=&quot;color: #009900; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;1&lt;/span&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;                                           .build())&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;will send nToReturn of -1 to OP_GET_MORE when fetching the second batch of documents.  &lt;/p&gt;

&lt;p&gt;On server 3.4, this results in a uassert:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;AssertionException handling request, closing client connection: 34419 Invalid ntoreturn for OP_GET_MORE: -1&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;The driver should be fixed so that it sends nToReturn of 1 instead.&lt;/p&gt;</description>
                <environment></environment>
        <key id="294832">JAVA-2231</key>
            <summary>Legacy driver sends nToReturn of -1 for OP_GET_MORE for an aggregation with batch size of 1</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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="jeff.yemin@mongodb.com">Jeffrey Yemin</assignee>
                                    <reporter username="jeff.yemin@mongodb.com">Jeffrey Yemin</reporter>
                        <labels>
                    </labels>
                <created>Fri, 17 Jun 2016 18:57:54 +0000</created>
                <updated>Fri, 16 Feb 2018 08:56:01 +0000</updated>
                            <resolved>Tue, 21 Jun 2016 16:17:00 +0000</resolved>
                                    <version>2.14.0</version>
                                    <fixVersion>2.14.3</fixVersion>
                                    <component>Query Operations</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1807802" author="xgen-internal-githook" created="Fri, 16 Feb 2018 08:56:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;jeff.yemin@10gen.com&apos;, &apos;name&apos;: &apos;Jeff Yemin&apos;, &apos;username&apos;: &apos;jyemin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-2231&quot; title=&quot;Legacy driver sends nToReturn of -1 for OP_GET_MORE for an aggregation with batch size of 1&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-2231&quot;&gt;&lt;del&gt;JAVA-2231&lt;/del&gt;&lt;/a&gt;: Never send a negative nToReturn value for OP_GET_MORE, as the 3.4 server will reject it.&lt;br/&gt;
Branch: 2.14.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/68939d1cd57034275bc81d6752264f1ffa63c66f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/68939d1cd57034275bc81d6752264f1ffa63c66f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1327119" author="jeff.yemin" created="Mon, 18 Jul 2016 16:14:29 +0000"  >&lt;p&gt;Released in 2.14.3&lt;/p&gt;</comment>
                            <comment id="1301415" author="xgen-internal-githook" created="Tue, 21 Jun 2016 16:17:38 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-2231&quot; title=&quot;Legacy driver sends nToReturn of -1 for OP_GET_MORE for an aggregation with batch size of 1&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-2231&quot;&gt;&lt;del&gt;JAVA-2231&lt;/del&gt;&lt;/a&gt;: Never send a negative nToReturn value for OP_GET_MORE, as the 3.4 server will reject it.&lt;br/&gt;
Branch: 2.14.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/68939d1cd57034275bc81d6752264f1ffa63c66f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/68939d1cd57034275bc81d6752264f1ffa63c66f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1301410" author="xgen-internal-githook" created="Tue, 21 Jun 2016 16:16:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;jyemin&apos;, u&apos;name&apos;: u&apos;Jeff Yemin&apos;, u&apos;email&apos;: u&apos;jeff.yemin@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/JAVA-2231&quot; title=&quot;Legacy driver sends nToReturn of -1 for OP_GET_MORE for an aggregation with batch size of 1&quot; class=&quot;issue-link&quot; data-issue-key=&quot;JAVA-2231&quot;&gt;&lt;del&gt;JAVA-2231&lt;/del&gt;&lt;/a&gt;: Never send a negative nToReturn value for OP_GET_MORE, as the 3.4 server will reject it.&lt;br/&gt;
Branch: 2.x&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-java-driver/commit/89329016d6ba7171de1be03dda6e17dabc23cd9c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-java-driver/commit/89329016d6ba7171de1be03dda6e17dabc23cd9c&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="294831">DOCS-8125</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="233395">SERVER-20808</issuekey>
        </issuelink>
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