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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-22675] PlanRanker::scoreTree may divide by zero</title>
                <link>https://jira.mongodb.org/browse/SERVER-22675</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The all.js test appears to trigger this, and UBSAN complains about it:&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;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;[executor:js_test:job0] 2016-02-16T19:22:21.175-0500 Running all.js...&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;&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;./mongo --eval MongoRunner.dataDir = &quot;/data/db/job0/mongorunner&quot;; TestData = new Object(); TestData.wiredTigerEngineConfigString = &quot;&quot;; TestData.maxPort = 20249; TestData.wiredTigerIndexConfigString = &quot;&quot;; TestData.noJournal = false; TestData.testName = &quot;all&quot;; TestData.storageEngine = &quot;&quot;; TestData.minPort = 20010; TestData.noJournalPrealloc = true; TestData.wiredTigerCollectionConfigString = &quot;&quot;; MongoRunner.dataPath = &quot;/data/db/job0/mongorunner/&quot; --readMode commands --port 20000 jstests/core/all.js&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;&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;[js_test:all] 2016-02-16T19:22:21.176-0500 Starting JSTest jstests/core/all.js...&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;&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;./mongo --eval MongoRunner.dataDir = &quot;/data/db/job0/mongorunner&quot;; TestData = new Object(); TestData.wiredTigerEngineConfigString = &quot;&quot;; TestData.maxPort = 20249; TestData.wiredTigerIndexConfigString = &quot;&quot;; TestData.noJournal = false; TestData.testName = &quot;all&quot;; TestData.storageEngine = &quot;&quot;; TestData.minPort = 20010; TestData.noJournalPrealloc = true; TestData.wiredTigerCollectionConfigString = &quot;&quot;; MongoRunner.dataPath = &quot;/data/db/job0/mongorunner/&quot; --readMode commands --port 20000 jstests/core/all.js&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;[js_test:all] 2016-02-16T19:22:21.182-0500 JSTest jstests/core/all.js started with pid 25729.&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;[js_test:all] 2016-02-16T19:22:21.208-0500 MongoDB shell version: 0.0.0&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;[js_test:all] 2016-02-16T19:22:21.354-0500 connecting to: 127.0.0.1:20000/test&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;[MongoDFixture:job0] 2016-02-16T19:22:21.355-0500 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:57448 #2 (1 connection now open)&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;[js_test:all] 2016-02-16T19:22:21.357-0500 /data/db/job0/mongorunner/&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;[MongoDFixture:job0] 2016-02-16T19:22:21.358-0500 I COMMAND  [conn2] CMD: drop test.jstests_all&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;[MongoDFixture:job0] 2016-02-16T19:22:21.451-0500 I COMMAND  [conn2] CMD: drop test.jstests_all&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;[MongoDFixture:job0] 2016-02-16T19:22:21.475-0500 I INDEX    [conn2] build index on: test.jstests_all properties: { v: 1, key: { a: 1.0 }, name: &quot;a_1&quot;, ns: &quot;test.jstests_all&quot; }&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;[MongoDFixture:job0] 2016-02-16T19:22:21.475-0500 I INDEX    [conn2] 	 building index using bulk method&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;[MongoDFixture:job0] 2016-02-16T19:22:21.476-0500 I INDEX    [conn2] build index done.  scanned 0 total records. 0 secs&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;[MongoDFixture:job0] src/mongo/db/query/plan_ranker.cpp:203:53: runtime error: division by zero&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;[MongoDFixture:job0]     #0 0x20008d5 in mongo::PlanRanker::scoreTree(mongo::PlanStageStats const*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/query/plan_ranker.cpp:203:9&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;[MongoDFixture:job0]     #1 0x19af87e in mongo::CachedPlanStage::updatePlanCache() /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/exec/cached_plan.cpp:330:23&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;[MongoDFixture:job0]     #2 0x19ad687 in mongo::CachedPlanStage::pickBestPlan(mongo::PlanYieldPolicy*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/exec/cached_plan.cpp:113:13&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;[MongoDFixture:job0]     #3 0x1ff4c0a in mongo::PlanExecutor::pickBestPlan(mongo::PlanExecutor::YieldPolicy) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/query/plan_executor.cpp:206:16&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;[MongoDFixture:job0]     #4 0x1ff3e7e in mongo::PlanExecutor::make(mongo::OperationContext*, std::unique_ptr&amp;lt;mongo::WorkingSet, std::default_delete&amp;lt;mongo::WorkingSet&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::PlanStage, std::default_delete&amp;lt;mongo::PlanStage&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::QuerySolution, std::default_delete&amp;lt;mongo::QuerySolution&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::Collection const*, std::string const&amp;amp;, mongo::PlanExecutor::YieldPolicy) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/query/plan_executor.cpp:143:21&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;[MongoDFixture:job0]     #5 0x1ff4678 in mongo::PlanExecutor::make(mongo::OperationContext*, std::unique_ptr&amp;lt;mongo::WorkingSet, std::default_delete&amp;lt;mongo::WorkingSet&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::PlanStage, std::default_delete&amp;lt;mongo::PlanStage&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::QuerySolution, std::default_delete&amp;lt;mongo::QuerySolution&amp;gt; &amp;gt;, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::Collection const*, mongo::PlanExecutor::YieldPolicy) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/query/plan_executor.cpp:120:12&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;[MongoDFixture:job0]     #6 0x1f6245b in mongo::getExecutorCount(mongo::OperationContext*, mongo::Collection*, mongo::CountRequest const&amp;amp;, bool, mongo::PlanExecutor::YieldPolicy) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/query/get_executor.cpp:1214:12&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;[MongoDFixture:job0]     #7 0x17e3248 in mongo::(anonymous namespace)::CmdCount::run(mongo::OperationContext*, std::string const&amp;amp;, mongo::BSONObj&amp;amp;, int, std::string&amp;amp;, mongo::BSONObjBuilder&amp;amp;) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/commands/count_cmd.cpp:140:39&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;[MongoDFixture:job0]     #8 0x195711b in mongo::Command::run(mongo::OperationContext*, mongo::rpc::RequestInterface const&amp;amp;, mongo::rpc::ReplyBuilderInterface*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/dbcommands.cpp:1464:19&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;[MongoDFixture:job0]     #9 0x1955710 in mongo::Command::execCommand(mongo::OperationContext*, mongo::Command*, mongo::rpc::RequestInterface const&amp;amp;, mongo::rpc::ReplyBuilderInterface*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/dbcommands.cpp:1332:18&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;&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;[MongoDFixture:job0]     #10 0x17cd335 in mongo::runCommands(mongo::OperationContext*, mongo::rpc::RequestInterface const&amp;amp;, mongo::rpc::ReplyBuilderInterface*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/commands.cpp:498:9&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;&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;[MongoDFixture:job0]     #11 0x1c748f2 in mongo::(anonymous namespace)::receivedRpc(mongo::OperationContext*, mongo::Client&amp;amp;, mongo::DbResponse&amp;amp;, mongo::Message&amp;amp;) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/instance.cpp:304:9&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;[MongoDFixture:job0]     #12 0x1c748f2 in mongo::assembleResponse(mongo::OperationContext*, mongo::Message&amp;amp;, mongo::DbResponse&amp;amp;, mongo::HostAndPort const&amp;amp;) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/instance.cpp:525&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;[MongoDFixture:job0]     #13 0x143d1af in mongo::MyMessageHandler::process(mongo::Message&amp;amp;, mongo::AbstractMessagingPort*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/db/db.cpp:173:17&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;[MongoDFixture:job0]     #14 0x2b75d52 in mongo::PortMessageServer::handleIncomingMsg(void*) /home/andrew/Documents/10gen/dev/src/mongodb/src/mongo/util/net/message_server_port.cpp:229:17&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;[MongoDFixture:job0]     #15 0x7f72dd4896a9 in start_thread /build/buildd/glibc-2.21/nptl/pthread_create.c:333&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;[MongoDFixture:job0]     #16 0x7f72dcfa7eec in clone /build/buildd/glibc-2.21/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:109&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;Note that while IEEE may specify that division by 0 results in NaN, the C++ standard declares it to be undefined behavior.&lt;/p&gt;

&lt;p&gt;The relevant snippet of code in plan_ranker.cpp:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/query/plan_ranker.cpp#L198-L203&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/db/query/plan_ranker.cpp#L198-L203&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;If the &apos;work&apos; field is zero, this will definitely cause a division by zero.&lt;/p&gt;</description>
                <environment></environment>
        <key id="265957">SERVER-22675</key>
            <summary>PlanRanker::scoreTree may divide by zero</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="tess.avitabile@mongodb.com">Tess Avitabile</assignee>
                                    <reporter username="andrew.morrow@mongodb.com">Andrew Morrow</reporter>
                        <labels>
                            <label>undefined-sanitizer</label>
                    </labels>
                <created>Wed, 17 Feb 2016 00:33:45 +0000</created>
                <updated>Mon, 22 Feb 2016 21:34:07 +0000</updated>
                            <resolved>Fri, 19 Feb 2016 15:19:31 +0000</resolved>
                                                    <fixVersion>3.3.2</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="1178879" author="xgen-internal-githook" created="Fri, 19 Feb 2016 15:22:40 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;tessavitabile&apos;, u&apos;name&apos;: u&apos;Tess Avitabile&apos;, u&apos;email&apos;: u&apos;tess.avitabile@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22675&quot; title=&quot;PlanRanker::scoreTree may divide by zero&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22675&quot;&gt;&lt;del&gt;SERVER-22675&lt;/del&gt;&lt;/a&gt; Ensure PlanRanker::scoreTree does not divide by zero&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/1d982f5421e93c7a59dab2d7acd5b549ab19790e&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/1d982f5421e93c7a59dab2d7acd5b549ab19790e&lt;/a&gt;&lt;/p&gt;</comment>
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