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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-28626] getMore on merging Shard does not propagate appName information</title>
                <link>https://jira.mongodb.org/browse/SERVER-28626</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Running an aggregation which was run on all three shards, when merging shard did a getMore, the logs show that only the merging shard itself shows the appName on the getMore log line (lines pruned for readability):&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;
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					&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;d20002| 2017-04-04T18:08:45.193-0400 I COMMAND  [conn22] getmore test.w appName: &quot;MongoDB Shell&quot; query: { getMore: 7102048335196067288, collection: &quot;w&quot;, batchSize: 0 } originatingCommand: { aggregate: &quot;w&quot;, pipeline: [ { $match: { _id: { $lt: ObjectId(&apos;58e3f9aec65061ce53c8f334&apos;) } } }, { $group: { _id: { $const: 0.0 }, a: { $sum: &quot;$a&quot; } } } ], fromRouter: true, cursor: { batchSize: 0 } } planSummary: IXSCAN { _id: 1 } cursorid:7102048335196067288 ntoreturn:0 keysExamined:0 docsExamined:0 cursorExhausted:1 numYields:0 nreturned:0 reslen:20 0ms&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;d20000| 2017-04-04T18:08:45.194-0400 I COMMAND  [conn35] getmore test.w query: { getMore: 6814644449283722003, collection: &quot;w&quot;, batchSize: 0 } originatingCommand: { aggregate: &quot;w&quot;, pipeline: [ { $match: { _id: { $lt: ObjectId(&apos;58e3f9aec65061ce53c8f334&apos;) } } }, { $group: { _id: { $const: 0.0 }, a: { $sum: &quot;$a&quot; } } } ], fromRouter: true, cursor: { batchSize: 0 } } planSummary: IXSCAN { _id: 1 } cursorid:6814644449283722003 ntoreturn:0 keysExamined:0 docsExamined:0 cursorExhausted:1 numYields:0 nreturned:0 reslen:20 0ms&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;d20001| 2017-04-04T18:08:45.194-0400 I COMMAND  [conn12] getmore test.w query: { getMore: 8919999956757843669, collection: &quot;w&quot;, batchSize: 0 } originatingCommand: { aggregate: &quot;w&quot;, pipeline: [ { $match: { _id: { $lt: ObjectId(&apos;58e3f9aec65061ce53c8f334&apos;) } } }, { $group: { _id: { $const: 0.0 }, a: { $sum: &quot;$a&quot; } } } ], fromRouter: true, cursor: { batchSize: 0 } } planSummary: IXSCAN { _id: 1 } cursorid:8919999956757843669 ntoreturn:0 keysExamined:119 docsExamined:119 cursorExhausted:1 numYields:0 nreturned:1 reslen:49 0ms&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;d20002| 2017-04-04T18:08:45.194-0400 I COMMAND  [conn21] command test.w appName: &quot;MongoDB Shell&quot; command: aggregate { aggregate: &quot;w&quot;, pipeline: [ { $mergeCursors: [ { host: &quot;erh-twinb:20000&quot;, ns: &quot;test.w&quot;, id: 6814644449283722003 }, { host: &quot;erh-twinb:20001&quot;, ns: &quot;test.w&quot;, id: 8919999956757843669 }, { host: &quot;erh-twinb:20002&quot;, ns: &quot;test.w&quot;, id: 7102048335196067288 } ] }, { $group: { _id: &quot;$$ROOT._id&quot;, a: { $sum: &quot;$$ROOT.a&quot; }, $doingMerge: true } } ], collation: { locale: &quot;simple&quot; }, cursor: {} } keysExamined:0 docsExamined:0 cursorExhausted:1 numYields:0 nreturned:1 reslen:163 protocol:op_command 0ms&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;/table&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="370889">SERVER-28626</key>
            <summary>getMore on merging Shard does not propagate appName information</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-query-optimization">Backlog - Query Optimization</assignee>
                                    <reporter username="asya.kamsky@mongodb.com">Asya Kamsky</reporter>
                        <labels>
                            <label>query-44-grooming</label>
                    </labels>
                <created>Tue, 4 Apr 2017 21:49:55 +0000</created>
                <updated>Tue, 6 Dec 2022 04:04:13 +0000</updated>
                                                                            <component>Aggregation Framework</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
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