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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-30189] Reduce calls to allocator for large $in expressions</title>
                <link>https://jira.mongodb.org/browse/SERVER-30189</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When a large number of concurrent queries with large $in arrays are executed they may bottleneck on the allocator; typical stacks below.&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;Thread 1140 (Thread 0x2b451dae6700 (LWP 81974)):&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;
					&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;#0  0x00000000014a6f85 in base::internal::SpinLockDelay(int volatile*, int, int) ()&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;#1  0x00000000014a6e57 in SpinLock::SlowLock() ()&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;
					&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;#2  0x00000000014a9393 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) ()&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;#3  0x00000000014b4d2a in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) ()&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;
					&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;#4  0x0000000001c11bd8 in tc_new ()&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;#5  0x0000000000d0097d in std::_Rb_tree&amp;lt;mongo::BSONElement, mongo::BSONElement, std::_Identity&amp;lt;mongo::BSONElement&amp;gt;, mongo::BSONElementCmpWithoutField, std::allocator&amp;lt;mongo::BSONElement&amp;gt; &amp;gt;::_M_copy(std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt; const*, std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt;*) ()&lt;/span&gt;&lt;/pre&gt;
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					&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;#6  0x0000000000d009e8 in std::_Rb_tree&amp;lt;mongo::BSONElement, mongo::BSONElement, std::_Identity&amp;lt;mongo::BSONElement&amp;gt;, mongo::BSONElementCmpWithoutField, std::allocator&amp;lt;mongo::BSONElement&amp;gt; &amp;gt;::_M_copy(std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt; const*, std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt;*) ()&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;
					&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;#7  0x0000000000cff349 in mongo::ArrayFilterEntries::copyTo(mongo::ArrayFilterEntries&amp;amp;) const ()&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;
					&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;#8  0x0000000000cff4e7 in mongo::InMatchExpression::copyTo(mongo::InMatchExpression*) const ()&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;
					&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;#9  0x0000000000cff579 in mongo::InMatchExpression::shallowClone() const ()&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;#10 0x0000000000d13878 in mongo::AndMatchExpression::shallowClone() const ()&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;#11 0x0000000000ecc26b in mongo::QueryPlanner::planFromCache(mongo::CanonicalQuery const&amp;amp;, mongo::QueryPlannerParams const&amp;amp;, mongo::CachedSolution const&amp;amp;, mongo::QuerySolution**) ()&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;
					&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;#12 0x0000000000e7c4e7 in mongo::(anonymous namespace)::prepareExecution(mongo::OperationContext*, mongo::Collection*, mongo::WorkingSet*, mongo::CanonicalQuery*, unsigned long, mongo::PlanStage**, mongo::QuerySolution**) ()&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;
					&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;#13 0x0000000000e7d434 in mongo::getExecutor(mongo::OperationContext*, mongo::Collection*, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::PlanExecutor::YieldPolicy, unsigned long) ()&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;
					&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;#14 0x0000000000e7dfbb in mongo::getExecutorFind(mongo::OperationContext*, mongo::Collection*, mongo::NamespaceString const&amp;amp;, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::PlanExecutor::YieldPolicy) ()&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;
					&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;#15 0x0000000000b4af7e in mongo::FindCmd::run(mongo::OperationContext*, std::basic_string&amp;lt;char, std::char_traits&amp;lt;char&amp;gt;, std::allocator&amp;lt;char&amp;gt; &amp;gt; const&amp;amp;, mongo::BSONObj&amp;amp;, int, std::basic_string&amp;lt;char, std::char_traits&amp;lt;char&amp;gt;, std::allocator&amp;lt;char&amp;gt; &amp;gt;&amp;amp;, mongo::BSONObjBuilder&amp;amp;) ()&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&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;Thread 1072 (Thread 0x2b4522d38700 (LWP 82047)):&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;
					&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;#0  0x00000000014a6f85 in base::internal::SpinLockDelay(int volatile*, int, int) ()&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;#1  0x00000000014a6e57 in SpinLock::SlowLock() ()&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;
					&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;#2  0x00000000014a8efd in tcmalloc::CentralFreeList::InsertRange(void*, void*, int) ()&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;
					&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;#3  0x00000000014b4ed8 in tcmalloc::ThreadCache::ReleaseToCentralCache(tcmalloc::ThreadCache::FreeList*, unsigned long, int) ()&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;
					&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;#4  0x00000000014b4f7d in tcmalloc::ThreadCache::ListTooLong(tcmalloc::ThreadCache::FreeList*, unsigned long) ()&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;
					&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;#5  0x0000000001c12080 in tc_delete ()&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;
					&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;#6  0x0000000000b40a1b in std::_Rb_tree&amp;lt;mongo::BSONElement, mongo::BSONElement, std::_Identity&amp;lt;mongo::BSONElement&amp;gt;, mongo::BSONElementCmpWithoutField, std::allocator&amp;lt;mongo::BSONElement&amp;gt; &amp;gt;::_M_erase(std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt;*) ()&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;
					&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;#7  0x0000000000b40a0f in std::_Rb_tree&amp;lt;mongo::BSONElement, mongo::BSONElement, std::_Identity&amp;lt;mongo::BSONElement&amp;gt;, mongo::BSONElementCmpWithoutField, std::allocator&amp;lt;mongo::BSONElement&amp;gt; &amp;gt;::_M_erase(std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt;*) ()&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;
					&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;#8  0x0000000000b40a0f in std::_Rb_tree&amp;lt;mongo::BSONElement, mongo::BSONElement, std::_Identity&amp;lt;mongo::BSONElement&amp;gt;, mongo::BSONElementCmpWithoutField, std::allocator&amp;lt;mongo::BSONElement&amp;gt; &amp;gt;::_M_erase(std::_Rb_tree_node&amp;lt;mongo::BSONElement&amp;gt;*) ()&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;
					&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;#9  0x0000000000d007aa in mongo::InMatchExpression::~InMatchExpression() ()&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;
					&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;#10 0x0000000000d1110a in mongo::ListOfMatchExpression::~ListOfMatchExpression() ()&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;#11 0x0000000000d135df in mongo::AndMatchExpression::~AndMatchExpression() ()&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;#12 0x0000000000eca1f6 in mongo::QueryPlanner::plan(mongo::CanonicalQuery const&amp;amp;, mongo::QueryPlannerParams const&amp;amp;, std::vector&amp;lt;mongo::QuerySolution*, std::allocator&amp;lt;mongo::QuerySolution*&amp;gt; &amp;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;   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;#13 0x0000000000e7bf48 in mongo::(anonymous namespace)::prepareExecution(mongo::OperationContext*, mongo::Collection*, mongo::WorkingSet*, mongo::CanonicalQuery*, unsigned long, mongo::PlanStage**, mongo::QuerySolution**) ()&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;#14 0x0000000000e7d434 in mongo::getExecutor(mongo::OperationContext*, mongo::Collection*, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::PlanExecutor::YieldPolicy, unsigned long) ()&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;#15 0x0000000000e7dfbb in mongo::getExecutorFind(mongo::OperationContext*, mongo::Collection*, mongo::NamespaceString const&amp;amp;, std::unique_ptr&amp;lt;mongo::CanonicalQuery, std::default_delete&amp;lt;mongo::CanonicalQuery&amp;gt; &amp;gt;, mongo::PlanExecutor::YieldPolicy) ()&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;#16 0x0000000000b4af7e in mongo::FindCmd::run(mongo::OperationContext*, std::basic_string&amp;lt;char, std::char_traits&amp;lt;char&amp;gt;, std::allocator&amp;lt;char&amp;gt; &amp;gt; const&amp;amp;, mongo::BSONObj&amp;amp;, int, std::basic_string&amp;lt;char, std::char_traits&amp;lt;char&amp;gt;, std::allocator&amp;lt;char&amp;gt; &amp;gt;&amp;amp;, mongo::BSONObjBuilder&amp;amp;) ()&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;</description>
                <environment></environment>
        <key id="404851">SERVER-30189</key>
            <summary>Reduce calls to allocator for large $in expressions</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="13201">Fixed</resolution>
                                        <assignee username="tess.avitabile@mongodb.com">Tess Avitabile</assignee>
                                    <reporter username="bruce.lucas@mongodb.com">Bruce Lucas</reporter>
                        <labels>
                    </labels>
                <created>Mon, 17 Jul 2017 20:18:42 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:09 +0000</updated>
                            <resolved>Wed, 9 Aug 2017 14:47:24 +0000</resolved>
                                                    <fixVersion>3.2.19</fixVersion>
                    <fixVersion>3.4.9</fixVersion>
                    <fixVersion>3.5.12</fixVersion>
                                    <component>Querying</component>
                                        <votes>1</votes>
                                    <watches>27</watches>
                                                                                                                <comments>
                            <comment id="1771588" author="xgen-internal-githook" created="Thu, 11 Jan 2018 16:03:52 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;name&apos;: &apos;Tess Avitabile&apos;, &apos;username&apos;: &apos;tessavitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30189&quot; title=&quot;Reduce calls to allocator for large $in expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30189&quot;&gt;&lt;del&gt;SERVER-30189&lt;/del&gt;&lt;/a&gt; Reduce calls to allocator for large $in expressions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 50a1afafc816097ed57804ff7033dffd85dbe160)&lt;br/&gt;
(cherry picked from commit ef408a20e6fd71ffc97f3602dd65ef5b03de6a45)&lt;br/&gt;
Branch: v3.2&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/d131ca7d6a2b0442620346561d27c6b00f832bf0&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/d131ca7d6a2b0442620346561d27c6b00f832bf0&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1771556" author="david.storch" created="Thu, 11 Jan 2018 15:43:23 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=johnnyshields&quot; class=&quot;user-hover&quot; rel=&quot;johnnyshields&quot;&gt;johnnyshields&lt;/a&gt;, we are currently evaluating the possibility of a backport to the 3.2 branch. Please continue to watch this ticket for updates.&lt;/p&gt;</comment>
                            <comment id="1763654" author="johnnyshields" created="Wed, 3 Jan 2018 07:35:29 +0000"  >&lt;p&gt;Hi, would it be possible to backport this patch to the 3.2 series? According to &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-32465&quot; title=&quot;Abnormally high (100%) CPU on secondary instance&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-32465&quot;&gt;&lt;del&gt;SERVER-32465&lt;/del&gt;&lt;/a&gt; we believe it affected us in production on version 3.2.12.&lt;/p&gt;</comment>
                            <comment id="1645101" author="xgen-internal-githook" created="Thu, 10 Aug 2017 13:43:10 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;tessavitabile&apos;, &apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;name&apos;: &apos;Tess Avitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30189&quot; title=&quot;Reduce calls to allocator for large $in expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30189&quot;&gt;&lt;del&gt;SERVER-30189&lt;/del&gt;&lt;/a&gt; Reduce calls to allocator for large $in expressions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 50a1afafc816097ed57804ff7033dffd85dbe160)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/ef408a20e6fd71ffc97f3602dd65ef5b03de6a45&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/ef408a20e6fd71ffc97f3602dd65ef5b03de6a45&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1644091" author="xgen-internal-githook" created="Wed, 9 Aug 2017 14:44:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;username&apos;: &apos;tessavitabile&apos;, &apos;email&apos;: &apos;tess.avitabile@mongodb.com&apos;, &apos;name&apos;: &apos;Tess Avitabile&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30189&quot; title=&quot;Reduce calls to allocator for large $in expressions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30189&quot;&gt;&lt;del&gt;SERVER-30189&lt;/del&gt;&lt;/a&gt; Reduce calls to allocator for large $in expressions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/50a1afafc816097ed57804ff7033dffd85dbe160&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/50a1afafc816097ed57804ff7033dffd85dbe160&lt;/a&gt;&lt;/p&gt;</comment>
                    </comments>
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                                        <issuelink>
            <issuekey id="561704">SERVER-35693</issuekey>
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            <issuekey id="562027">SERVER-35699</issuekey>
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            <issuelink>
            <issuekey id="606207">SERVER-37176</issuekey>
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