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<channel>
    <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-33057] Indexing fatal assertion on secondary during sync</title>
                <link>https://jira.mongodb.org/browse/SERVER-33057</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We recently added a new hidden secondary to one of our many clusters. The cluster, while on version 3.4.10, is running in featureCompatabilityMode: 3.2. After initial sync, while rebuilding numerous indexes, the server crashed while attempting to create what appears to have been its 65th index.  &lt;/p&gt;

&lt;p&gt;I suspect a fatal exception here is not ideal. I&apos;m also curious how our other systems are still alive, while on the same version.&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;2018-02-01T11:19:12.226-0600 I INDEX    [repl index builder 1134] build index on: XDemo2.D_22 properties: { v: 1, key: { Fx.A.SV: 1 }, name: &quot;Fx.A.SV_1&quot;, ns: &quot;XDemo2.D_22&quot;, background: true }&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;2018-02-01T11:19:12.253-0600 I INDEX    [repl index builder 1134] build index done.  scanned 75 total records. 0 secs&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;2018-02-01T11:19:12.254-0600 I INDEX    [repl index builder 1135] add index fails, too many indexes for XDemo2.D_22 key:{ Fx.A.RRIds: 1 }&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;2018-02-01T11:19:12.254-0600 E INDEX    [repl index builder 1135] bad status from index build: CannotCreateIndex: add index fails, too many indexes for XDemo2.D_22 key:{ Fx.A.RRIds: 1 }&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;2018-02-01T11:19:12.255-0600 E INDEX    [repl index builder 1135] IndexBuilder could not build index: CannotCreateIndex: add index fails, too many indexes for XDemo2.D_22 key:{ Fx.A.RRIds: 1 }&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;2018-02-01T11:19:12.255-0600 I -        [repl index builder 1135] Fatal Assertion 28555 at src/mongo/db/index_builder.cpp 106&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;2018-02-01T11:19:12.255-0600 I -        [repl index builder 1135]&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;&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;***aborting after fassert() failure&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;&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;&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;2018-02-01T11:19:12.327-0600 F -        [repl index builder 1135] Got signal: 6 (Aborted).&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;&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; 0x558738e68641 0x558738e67859 0x558738e67d3d 0x7f26d476a890 0x7f26d43e5067 0x7f26d43e6448 0x5587381127a3 0x558738576be6 0x558738ddac41 0x5587398dda40 0x7f26d4763064 0x7f26d449862d&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;----- BEGIN BACKTRACE -----&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;{&quot;backtrace&quot;:[{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;1571641&quot;,&quot;s&quot;:&quot;_ZN5mongo15printStackTraceERSo&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;1570859&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;1570D3D&quot;},{&quot;b&quot;:&quot;7F26D475B000&quot;,&quot;o&quot;:&quot;F890&quot;},{&quot;b&quot;:&quot;7F26D43B0000&quot;,&quot;o&quot;:&quot;35067&quot;,&quot;s&quot;:&quot;gsignal&quot;},{&quot;b&quot;:&quot;7F26D43B0000&quot;,&quot;o&quot;:&quot;36448&quot;,&quot;s&quot;:&quot;abort&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;81B7A3&quot;,&quot;s&quot;:&quot;_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;C7FBE6&quot;,&quot;s&quot;:&quot;_ZN5mongo12IndexBuilder3runEv&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;14E3C41&quot;,&quot;s&quot;:&quot;_ZN5mongo13BackgroundJob7jobBodyEv&quot;},{&quot;b&quot;:&quot;5587378F7000&quot;,&quot;o&quot;:&quot;1FE6A40&quot;},{&quot;b&quot;:&quot;7F26D475B000&quot;,&quot;o&quot;:&quot;8064&quot;},{&quot;b&quot;:&quot;7F26D43B0000&quot;,&quot;o&quot;:&quot;E862D&quot;,&quot;s&quot;:&quot;clone&quot;}],&quot;processInfo&quot;:{ &quot;mongodbVersion&quot; : &quot;3.4.10&quot;, &quot;gitVersion&quot; : &quot;078f28920cb24de0dd479b5ea6c66c644f6326e9&quot;, &quot;compiledModules&quot; : [], &quot;uname&quot; : { &quot;sysname&quot; : &quot;Linux&quot;, &quot;release&quot; : &quot;3.16.0-4-amd64&quot;, &quot;version&quot; : &quot;#1 SMP Debian 3.16.43-2+deb8u5 (2017-09-19)&quot;, &quot;machine&quot; : &quot;x86_64&quot; }, &quot;somap&quot; : [ { &quot;b&quot; : &quot;5587378F7000&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;004E9FAB8E542F8BABDB0274A211B1E9D15DEDF1&quot; }, { &quot;b&quot; : &quot;7FFE359F5000&quot;, &quot;path&quot; : &quot;linux-vdso.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;D3D8F25E67DC1A88F1545D51C29476B4CC91F2E5&quot; }, { &quot;b&quot; : &quot;7F26D5697000&quot;, &quot;path&quot; : &quot;/usr/lib/x86_64-linux-gnu/libssl.so.1.0.0&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;21115992A1F885E1ACE88AADA60F126AD9759D03&quot; }, { &quot;b&quot; : &quot;7F26D529B000&quot;, &quot;path&quot; : &quot;/usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;FD6376149047833953B0269E84DE181CA45DBE90&quot; }, { &quot;b&quot; : &quot;7F26D5093000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/librt.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;A63C95FB33CCA970E141D2E13774B997C1CF0565&quot; }, { &quot;b&quot; : &quot;7F26D4E8F000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/libdl.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;D70B531D672A34D71DB42EB32B68E63F2DCC5B6A&quot; }, { &quot;b&quot; : &quot;7F26D4B8E000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/libm.so.6&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;152C93BA3E8590F7ED0BCDDF868600D55EC4DD6F&quot; }, { &quot;b&quot; : &quot;7F26D4978000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/libgcc_s.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;D5FB04F64B3DAEA6D6B68B5E8B9D4D2BC1A6E1FC&quot; }, { &quot;b&quot; : &quot;7F26D475B000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/libpthread.so.0&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;9DA9387A60FFC196AEDB9526275552AFEF499C44&quot; }, { &quot;b&quot; : &quot;7F26D43B0000&quot;, &quot;path&quot; : &quot;/lib/x86_64-linux-gnu/libc.so.6&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;48C48BC6ABB794461B8A558DD76B29876A0551F0&quot; }, { &quot;b&quot; : &quot;7F26D58F8000&quot;, &quot;path&quot; : &quot;/lib64/ld-linux-x86-64.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;1D98D41FBB1EABA7EC05D0FD7624B85D6F51C03C&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; mongod(_ZN5mongo15printStackTraceERSo+0x41) [0x558738e68641]&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; mongod(+0x1570859) [0x558738e67859]&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; mongod(+0x1570D3D) [0x558738e67d3d]&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; libpthread.so.0(+0xF890) [0x7f26d476a890]&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; libc.so.6(gsignal+0x37) [0x7f26d43e5067]&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; libc.so.6(abort+0x148) [0x7f26d43e6448]&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; mongod(_ZN5mongo32fassertFailedNoTraceWithLocationEiPKcj+0x0) [0x5587381127a3]&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; mongod(_ZN5mongo12IndexBuilder3runEv+0xD86) [0x558738576be6]&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; mongod(_ZN5mongo13BackgroundJob7jobBodyEv+0x131) [0x558738ddac41]&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; mongod(+0x1FE6A40) [0x5587398dda40]&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; libpthread.so.0(+0x8064) [0x7f26d4763064]&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; libc.so.6(clone+0x6D) [0x7f26d449862d]&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;-----  END BACKTRACE  -----&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;&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>Linux</environment>
        <key id="491027">SERVER-33057</key>
            <summary>Indexing fatal assertion on secondary during sync</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="william.schultz@mongodb.com">William Schultz</assignee>
                                    <reporter username="sallgeud">Chad Kreimendahl</reporter>
                        <labels>
                    </labels>
                <created>Thu, 1 Feb 2018 18:31:50 +0000</created>
                <updated>Wed, 21 Mar 2018 04:32:49 +0000</updated>
                            <resolved>Fri, 16 Feb 2018 18:56:41 +0000</resolved>
                                    <version>3.4.10</version>
                                                    <component>Index Maintenance</component>
                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>11</watches>
                                                                                                                <comments>
                            <comment id="1808312" author="sallgeud" created="Fri, 16 Feb 2018 18:32:07 +0000"  >&lt;p&gt;It&apos;s certainly possible. There shouldn&apos;t have been any index changes, but they do happen occasionally. That specific collection didn&apos;t have any administrative updates in our console, suggesting it might have been a predictive analysis tool we have that picks which 64 fields get indexed.  If you guys would update your limit on number of indexes to like 256, that tool wouldn&apos;t matter much to us, as we&apos;d index almost everything.  While I say that, I&apos;m reminded that &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-1140&quot; title=&quot;Support 64 (or more) indexes&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-1140&quot;&gt;&lt;del&gt;SERVER-1140&lt;/del&gt;&lt;/a&gt; could be recreated as &quot;128, 256, 512, 1024, etc), which it appears I did, &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-21591&quot; title=&quot;Support more than 64 indexes per collection (at least 200)&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-21591&quot;&gt;&lt;del&gt;SERVER-21591&lt;/del&gt;&lt;/a&gt;.  I&apos;m also reminded that the reduction in number of files per indexes would be necessary if this were to happen, as startup times are already insane for us. That&apos;d be: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-17675&quot; title=&quot;Support file per database for WiredTiger&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-17675&quot;&gt;&lt;del&gt;SERVER-17675&lt;/del&gt;&lt;/a&gt; and &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-25025&quot; title=&quot;Improve startup time when there are tens of thousands of collections/indexes on WiredTiger&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-25025&quot;&gt;&lt;del&gt;SERVER-25025&lt;/del&gt;&lt;/a&gt;  (which were supposed to be in 3.6, then 3.8, now are just tossed into backlog.)&lt;/p&gt;</comment>
                            <comment id="1807070" author="william.schultz" created="Thu, 15 Feb 2018 17:11:58 +0000"  >&lt;p&gt;Thanks for submitting the log files &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=sallgeud&quot; class=&quot;user-hover&quot; rel=&quot;sallgeud&quot;&gt;sallgeud&lt;/a&gt;. This appears to be a known issue with initial sync related to the fact that MongoDB enforces a maximum of 64 indexes per collection. This creates potential problems for initial sync, due to the way that we clone data and apply oplog operations. Initial sync consists of two main data transfer operations, the &lt;b&gt;Clone&lt;/b&gt; phase, where we copy all documents from each collection on the sync source, and the &lt;b&gt;Oplog Fetching&lt;/b&gt; phase, where we fetch and buffer all oplog operations that occurred on the sync source for the duration of the initial sync. These processes happen concurrently. We can imagine the following initial sync event sequence:&lt;/p&gt;

&lt;ol&gt;
	&lt;li&gt;Oplog fetching starts&lt;/li&gt;
	&lt;li&gt;An index I is created on the sync source, on collection C.&lt;/li&gt;
	&lt;li&gt;Index I is dropped on the sync source.&lt;/li&gt;
	&lt;li&gt;64 indexes are created on collection C on the sync source (which is allowed).&lt;/li&gt;
	&lt;li&gt;Collection C is cloned, along with all 64 indexes.&lt;/li&gt;
	&lt;li&gt;Initial sync collection cloning finishes.&lt;/li&gt;
	&lt;li&gt;Oplog application starts.&lt;/li&gt;
	&lt;li&gt;The initial syncing node tries to apply the operation that originally created index I on C. This should fail, since it would try to create a 65th index. We can see that this temporary constraint violation would resolve itself, once we apply the subsequent dropIndex operation that removes I, but we don&apos;t have an explicit way to ignore this violation and continue.&lt;/li&gt;
&lt;/ol&gt;


&lt;p&gt;This is likely the issue you ran into. After looking at the logs, it looks like collection &lt;tt&gt;OnspringDemo2.D_22&lt;/tt&gt; was the collection that violated the 64 index limit. It appears that, when it was cloned, it had 63 indexes on it, and then, during oplog application, a new index was created on it (a 64th index):&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;   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;2018-02-01T11:19:12.226-0600 I INDEX    [pl index builder 1134] build index on: OnspringDemo2.D_22 properties: { v: 1, key: { Fx.646.SV: 1 }, name: &quot;Fx.646.SV_1&quot;, ns: &quot;OnspringDemo2.D_22&quot;, background: true }&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;and then another index creation op was applied, which fails:&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;   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;2018-02-01T11:19:12.254-0600 I INDEX    [pl index builder 1135] add index fails, too many indexes for OnspringDemo2.D_22 key:{ Fx.646.RRIds: 1 }&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;Without the logs of the sync source, it is tough to tell exactly, but what I presume happened is that the &lt;tt&gt;Fx.646.RRIds&lt;/tt&gt; index was created and then later deleted on the sync source, before the collection was cloned (that index doesn&apos;t show up in the list of collections built on  &lt;tt&gt;OnspringDemo2.D_22&lt;/tt&gt; during the initial sync), and then during oplog application we see the error appear because it tried to apply that index creation op, violating the 64 index constraint.&lt;/p&gt;</comment>
                            <comment id="1798408" author="sallgeud" created="Wed, 7 Feb 2018 18:19:01 +0000"  >&lt;p&gt;Submitted. Takes a while to anonymize the data, schedule the firewall rules for egress of this type of info, and get it your way. You should have it now.&lt;/p&gt;</comment>
                            <comment id="1797608" author="thomas.schubert" created="Wed, 7 Feb 2018 02:15:03 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=sallgeud&quot; class=&quot;user-hover&quot; rel=&quot;sallgeud&quot;&gt;sallgeud&lt;/a&gt;, would you please let us know when you&apos;ve uploaded the files?&lt;/p&gt;

&lt;p&gt;Thanks,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                            <comment id="1797516" author="william.schultz" created="Tue, 6 Feb 2018 23:14:20 +0000"  >&lt;p&gt;As Spencer mentioned, the fact that the collection has 64 indexes on it and this occurs during initial sync makes it seem highly likely it is a known issue (&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27122&quot; title=&quot;Restart initial sync for known index idempotency errors; fail for unknown ones. &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27122&quot;&gt;SERVER-27122&lt;/a&gt;), that is not slated to be fixed at this point. To be sure, it would be worth seeing the full logs. I wasn&apos;t able to get them from the download portal &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kelsey.schubert&quot; class=&quot;user-hover&quot; rel=&quot;kelsey.schubert&quot;&gt;kelsey.schubert&lt;/a&gt;?&lt;/p&gt;</comment>
                            <comment id="1795366" author="thomas.schubert" created="Mon, 5 Feb 2018 16:55:47 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=sallgeud&quot; class=&quot;user-hover&quot; rel=&quot;sallgeud&quot;&gt;sallgeud&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Sorry for the delay, here&apos;s a &lt;a href=&quot;https://10gen-httpsupload.s3.amazonaws.com/upload_forms/1d7cf086-488a-4c3a-86d1-37709818bbfa.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;secure portal&lt;/a&gt; for you to use.&lt;/p&gt;

&lt;p&gt;Kind regards,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                            <comment id="1793945" author="sallgeud" created="Fri, 2 Feb 2018 21:21:39 +0000"  >&lt;p&gt;Can I get a secure upload site?&lt;/p&gt;

&lt;p&gt;I&apos;ve already deleted half the indexes in that collection (for the time being), and will have our indexing tool recreate them after. I verified before I nuked some that it had &lt;b&gt;exactly&lt;/b&gt; 64 on the primary and both existing secondaries.&lt;/p&gt;
</comment>
                            <comment id="1792438" author="spencer" created="Thu, 1 Feb 2018 21:51:48 +0000"  >&lt;p&gt;I suspect this is a dupe of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-27122&quot; title=&quot;Restart initial sync for known index idempotency errors; fail for unknown ones. &quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-27122&quot;&gt;SERVER-27122&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1792231" author="thomas.schubert" created="Thu, 1 Feb 2018 19:28:06 +0000"  >&lt;p&gt;Hi &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=sallgeud&quot; class=&quot;user-hover&quot; rel=&quot;sallgeud&quot;&gt;sallgeud&lt;/a&gt;,&lt;/p&gt;

&lt;p&gt;Would you please provide the complete logs starting when the initial sync began from the node that encountered this issue as well as the output of &lt;tt&gt;db.getSiblingDB(&quot;XDemo2&quot;).D_22.getIndexes()&lt;/tt&gt;?&lt;/p&gt;

&lt;p&gt;Thank you,&lt;br/&gt;
Kelsey&lt;/p&gt;</comment>
                            <comment id="1792135" author="sallgeud" created="Thu, 1 Feb 2018 18:32:29 +0000"  >&lt;p&gt;Apologies. This should be a &quot;bug&quot; not an &quot;improvement&quot;. Won&apos;t let me change now.&lt;/p&gt;</comment>
                    </comments>
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