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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>
    </build-info>


<item>
            <title>[SERVER-19363] dassert in batch_upconvert.cpp due to command operation reaching msgToBatchRequests</title>
                <link>https://jira.mongodb.org/browse/SERVER-19363</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;While doing some local stress testing, I hit the following assertion failure:&lt;/p&gt;

&lt;p/&gt;
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&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; 	mongos.exe!mongo::breakpoint() Line 60	C++&lt;/span&gt;&lt;/pre&gt;
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		&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; 	mongos.exe!mongo::invariantFailed(const char * expr=0x00007ff7da56d978, const char * file=0x00007ff7da56d948, unsigned int line=59) Line 153	C++&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;&amp;gt;	mongos.exe!mongo::msgToBatchRequests(const mongo::Message &amp;amp; msg={...}, std::vector&amp;lt;mongo::BatchedCommandRequest *,std::allocator&amp;lt;mongo::BatchedCommandRequest *&amp;gt; &amp;gt; * requests=0x000000e53e40e5a8) Line 59	C++&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; 	mongos.exe!mongo::Strategy::writeOp(int op=2008, mongo::Request &amp;amp; r={...}) Line 652	C++&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; 	mongos.exe!mongo::Request::process(int attempt=0) Line 124	C++&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; 	mongos.exe!mongo::ShardedMessageHandler::process(mongo::Message &amp;amp; m={...}, mongo::AbstractMessagingPort * p=0x000000e53c2f2fc0) Line 142	C++&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; 	mongos.exe!mongo::PortMessageServer::handleIncomingMsg(void * arg=0x000000e53c2f2fc0) Line 231	C++&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; 	mongos.exe!boost::_bi::list1&amp;lt;boost::_bi::value&amp;lt;mongo::`anonymous namespace&apos;::MessagingPortWithHandler * __ptr64&amp;gt; &amp;gt;::operator()&amp;lt;void * __ptr64,void * __ptr64 (__cdecl*)(void * __ptr64),boost::_bi::list0&amp;gt;(boost::_bi::type&amp;lt;void *&amp;gt; __formal={...}, void * (void *) * &amp;amp; f=0x00007ff7d908df23, boost::_bi::list0 &amp;amp; a={...}, long __formal=0) Line 244	C++&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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&lt;p/&gt;

&lt;p&gt;The offending line is &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e9fa4cb0d3c5209a0a8134758aa9922e7a3a9fbc/src/mongo/s/write_ops/batch_upconvert.cpp#L59&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;here&lt;/a&gt; and it looks like the input opType is 2008 (dbCommand) and the expected value is 2006 (dbDelete).&lt;/p&gt;

&lt;p&gt;It looks like the mongo shell is sending a command, but mongos does not support commands.&lt;/p&gt;

&lt;p&gt;The command being sent looks like replSetInitiate:&lt;/p&gt;

&lt;p/&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;0x000000E53C4F1870  a6 00 00 00 23 00 00 00 00 00 00 00 d8 07 00 00 61 64 6d 69 6e 00 72 65 70 6c 53 65 74  &#166;...#.......&#216;...admin.replSet&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="216235">SERVER-19363</key>
            <summary>dassert in batch_upconvert.cpp due to command operation reaching msgToBatchRequests</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="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="backlog-server-platform">DO NOT USE - Backlog - Platform Team</assignee>
                                    <reporter username="kaloian.manassiev@mongodb.com">Kaloian Manassiev</reporter>
                        <labels>
                    </labels>
                <created>Fri, 10 Jul 2015 20:58:57 +0000</created>
                <updated>Mon, 23 May 2016 19:35:43 +0000</updated>
                            <resolved>Mon, 23 May 2016 19:35:43 +0000</resolved>
                                    <version>3.1.5</version>
                                                    <component>Networking</component>
                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1272434" author="jason.carey" created="Mon, 23 May 2016 19:35:43 +0000"  >&lt;p&gt;I believe this is gone away, because that mixup was probably caused when we transitioned the order in which metadata was packed into an op_command (thus the opcode mismatch).  I think this was a transient failure from one moment in 3.1 development&lt;/p&gt;</comment>
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