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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-15895] Aggregation Query returning exception: Version 2.6</title>
                <link>https://jira.mongodb.org/browse/SERVER-15895</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Hi Team,&lt;/p&gt;

&lt;p&gt;We are running an aggregation query(Attached with issue) on a collection which consists of 200 million records on 3-node sharded cluster(AWS).&lt;/p&gt;

&lt;p&gt;Volume of records per day: 500,000 to 700,000.&lt;/p&gt;

&lt;p&gt;While running query for date range 1 month(January), we are getting result.&lt;/p&gt;

&lt;p&gt;If we run the same query with date range for more than 1 month, we are getting below exception:&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;Error(&quot;Printing Stack Trace&quot;)@:0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;()@src/mongo/shell/utils.js:37&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&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;([object Object],[object Object],[object Object],[object Object])@src/mongo/shell/collection.js:866&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&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;@(shell):7&lt;/span&gt;&lt;/pre&gt;
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				&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;&amp;nbsp;&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;uncaught exception: aggregate failed: {&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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			&lt;/td&gt;
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			&lt;/td&gt;
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				&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;
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			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;Please let us know, if any modification requires in query execution.&lt;/p&gt;</description>
                <environment></environment>
        <key id="166608">SERVER-15895</key>
            <summary>Aggregation Query returning exception: Version 2.6</summary>
                <type id="6" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14720&amp;avatarType=issuetype">Question</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="3">Duplicate</resolution>
                                        <assignee username="ramon.fernandez@mongodb.com">Ramon Fernandez Marina</assignee>
                                    <reporter username="jitendra.gehlot">Jitendra Gehlot</reporter>
                        <labels>
                    </labels>
                <created>Fri, 31 Oct 2014 10:47:35 +0000</created>
                <updated>Wed, 3 Dec 2014 17:45:15 +0000</updated>
                            <resolved>Wed, 3 Dec 2014 17:45:15 +0000</resolved>
                                                                    <component>Aggregation Framework</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="777543" author="ramon.fernandez" created="Wed, 3 Dec 2014 17:44:23 +0000"  >&lt;p&gt;Thanks for your report &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jitendra.gehlot%40opussoft.com&quot; class=&quot;user-hover&quot; rel=&quot;jitendra.gehlot@opussoft.com&quot;&gt;jitendra.gehlot@opussoft.com&lt;/a&gt;. There&apos;s a known issue with large aggregation queries on sharded clusters described in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6036&quot; title=&quot;Disable cursor timeout for cursors that belong to a session&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6036&quot;&gt;&lt;del&gt;SERVER-6036&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;A specific solution would depend on your shard key and data distribution, but in general you may want to try modifying your query so it returns the documents you need faster. This may involve adding additional indexes to better support the query, checking that specific shards are not holding too many of those documents (while others have too little or none), and maybe even scaling your shards vertically with faster CPUs and storage devices.&lt;/p&gt;

&lt;p&gt;That being said, I&apos;m marking this ticket as a duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6036&quot; title=&quot;Disable cursor timeout for cursors that belong to a session&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6036&quot;&gt;&lt;del&gt;SERVER-6036&lt;/del&gt;&lt;/a&gt;. Please feel free to vote for that ticket and watch it for status updates.&lt;/p&gt;

&lt;p&gt;Regards,&lt;br/&gt;
Ram&#243;n.&lt;/p&gt;</comment>
                    </comments>
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                            <attachment id="55820" name="MongoQuery_modified.txt" size="160491" author="jitendra.gehlot" created="Fri, 31 Oct 2014 10:47:35 +0000"/>
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