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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-16567] extend data directory metadata to hold storage engine creation settings for startup validation</title>
                <link>https://jira.mongodb.org/browse/SERVER-16567</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Extend data directory metadata (introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15986&quot; title=&quot;Starting with different storage engines in the same dbpath should error/warn&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15986&quot;&gt;&lt;del&gt;SERVER-15986&lt;/del&gt;&lt;/a&gt;) to hold creation settings (derived from startup options). These creation settings will be validated by the storage engine on restart.&lt;/p&gt;

&lt;p&gt;On startup, the storage engine will check the current configuration/startup options against the creation settings stored in the metadata. If an inconsistency is detected, the server will fail to start up.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;MMAPV1
	&lt;ul&gt;
		&lt;li&gt;&lt;a href=&quot;http://docs.mongodb.org/manual/reference/configuration-options/#storage.directoryPerDB&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;--directoryperdb&lt;/a&gt;&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;ul&gt;
	&lt;li&gt;WiredTiger
	&lt;ul&gt;
		&lt;li&gt;&lt;a href=&quot;http://docs.mongodb.org/manual/reference/configuration-options/#storage.directoryPerDB&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;--directoryperdb&lt;/a&gt;&lt;/li&gt;
		&lt;li&gt;--wiredTigerDirectoryForIndexes (introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-965&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;SERVER-965&lt;/a&gt;)&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;---------------&lt;/p&gt;

&lt;p&gt;In attempt to emulate something a user might inadvertently do, I started mongod with directoryForIndexes and added an index to an existing collection.&lt;/p&gt;

&lt;p&gt;1) mongod now had some indexes in top level data directory and some in &quot;index&quot; subdirectory of data directory&lt;/p&gt;

&lt;p&gt;I now emulated a partial backup by bringing down mongod, and removing &quot;index&quot; directory - this is what would happen if index was mounted on another physical device and a snapshot of just data directory was taken (leaving all or some indexes behind).   I now brought up mongod and ran db.collection.getIndexes and db.collection.find( &amp;lt;query-using-new-index&amp;gt;).explain() and same find with explain(true).&lt;/p&gt;

&lt;p&gt;The first two commands succeeded with correct output, but actually forcing the running of the indexed query crashed the server with:&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;2014-12-16T13:40:33.565-0500 E STORAGE  [conn1] WiredTiger (2) [1418755233:565872][29294:0x111c67000], file:index/1--3930778720722776466.wt, session.open_cursor: /data/wt/index/1--3930778720722776466.wt: No such file or directory&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;2014-12-16T13:40:33.566-0500 E STORAGE  [conn1] no cursor for uri: table:index/1--3930778720722776466&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;2014-12-16T13:40:33.567-0500 F -        [conn1] Invalid access at address: 0x30&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;2014-12-16T13:40:33.599-0500 F -        [conn1] Got signal: 11 (Segmentation fault: 11).&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&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;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; 0x10ec99839 0x10ec993fe 0x7fff8e7fe5aa 0xc0 0x10eac8810 0x10e80daf4 0x10e7839b8 0x10e783d1c 0x10e77575e 0x10e94fcc7 0x10e9503b8 0x10e91939d 0x10e6cc9b9 0x10e6c5268 0x10e7444fa 0x10e74561e 0x10e74626c 0x10e91eaf1 0x10e8202b9 0x10e574d31 0x10ec5d376 0x10eccd551 0x7fff8ef59899 0x7fff8ef5972a 0x7fff8ef5dfc9&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;10E56A000&quot;,&quot;o&quot;:&quot;72F839&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;72F3FE&quot;},{&quot;b&quot;:&quot;7FFF8E7FB000&quot;,&quot;o&quot;:&quot;35AA&quot;},{&quot;b&quot;:&quot;0&quot;,&quot;o&quot;:&quot;C0&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;55E810&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;2A3AF4&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;2199B8&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;219D1C&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;20B75E&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;3E5CC7&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;3E63B8&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;3AF39D&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;1629B9&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;15B268&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;1DA4FA&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;1DB61E&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;1DC26C&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;3B4AF1&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;2B62B9&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;AD31&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;6F3376&quot;},{&quot;b&quot;:&quot;10E56A000&quot;,&quot;o&quot;:&quot;763551&quot;},{&quot;b&quot;:&quot;7FFF8EF58000&quot;,&quot;o&quot;:&quot;1899&quot;},{&quot;b&quot;:&quot;7FFF8EF58000&quot;,&quot;o&quot;:&quot;172A&quot;},{&quot;b&quot;:&quot;7FFF8EF58000&quot;,&quot;o&quot;:&quot;5FC9&quot;}],&quot;processInfo&quot;:{ &quot;mongodbVersion&quot; : &quot;2.8.0-rc2&quot;, &quot;gitVersion&quot; : &quot;f77869e01a6ed235695a46fad441c0dff15202f6&quot;, &quot;uname&quot; : { &quot;sysname&quot; : &quot;Darwin&quot;, &quot;release&quot; : &quot;13.4.0&quot;, &quot;version&quot; : &quot;Darwin Kernel Version 13.4.0: Sun Aug 17 19:50:11 PDT 2014; root:xnu-2422.115.4~1/RELEASE_X86_64&quot;, &quot;machine&quot; : &quot;x86_64&quot; }, &quot;somap&quot; : [ { &quot;path&quot; : &quot;/Users/asya/bins/mongodb-osx-x86_64-2.8.0-rc2/bin/mongod&quot;, &quot;machType&quot; : 2, &quot;b&quot; : &quot;10E56A000&quot;, &quot;buildId&quot; : &quot;5E5E1684499B308383920314F3A9D5EA&quot; }, { &quot;path&quot; : &quot;/usr/lib/libSystem.B.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF89164000&quot;, &quot;buildId&quot; : &quot;E303F2F8A8CF3DF384B3F2D0EE41CCF6&quot; }, { &quot;path&quot; : &quot;/usr/lib/libc++.1.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8FD8B000&quot;, &quot;buildId&quot; : &quot;2CB96D101E3E39B1B90DC56C3818321E&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libcache.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF933AC000&quot;, &quot;buildId&quot; : &quot;8C1EFC4F3F513DE9A973360B461F3D65&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libcommonCrypto.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF890C2000&quot;, &quot;buildId&quot; : &quot;79B8E80FE59633028243EC479B9546CA&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libcompiler_rt.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF88E61000&quot;, &quot;buildId&quot; : &quot;2A8900040A783E339AC5A7D63BD4F879&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libcopyfile.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8B211000&quot;, &quot;buildId&quot; : &quot;CF29DFF605893590834C82E2316612E8&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libcorecrypto.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF890F5000&quot;, &quot;buildId&quot; : &quot;F3973C2814B63006BB2B00DD7F09ABC7&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libdispatch.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF95CD7000&quot;, &quot;buildId&quot; : &quot;C4E4A18D3C3B3C9C8709A4270D998DE7&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libdyld.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF890CD000&quot;, &quot;buildId&quot; : &quot;7C9EC3B7DDE333FF953F4067C743951D&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libkeymgr.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8AF23000&quot;, &quot;buildId&quot; : &quot;D7045F25BFA43840847DAF95DF8B6CCA&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/liblaunch.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8F941000&quot;, &quot;buildId&quot; : &quot;A40A0C7B321639B48AE0B5D3BAF1DA8A&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libmacho.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8D7A5000&quot;, &quot;buildId&quot; : &quot;B2BE3C25CF1F309BAB991F0B54621445&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libquarantine.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF88E5E000&quot;, &quot;buildId&quot; : &quot;973BE51D6465392F9099D4AB21BF0D25&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libremovefile.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8D29E000&quot;, &quot;buildId&quot; : &quot;26266E3FFDDC3CFCB27F78B49BDC9BDC&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_asl.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF90FA1000&quot;, &quot;buildId&quot; : &quot;B983CA60F418317BB14248A6376564FC&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_blocks.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8E302000&quot;, &quot;buildId&quot; : &quot;FB856CD12AEA39078E9B1E54B6827F82&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_c.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8B094000&quot;, &quot;buildId&quot; : &quot;6FD3A4004BB23B95B90CBE6E9D0D78FA&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_configuration.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF890BF000&quot;, &quot;buildId&quot; : &quot;4998CB6A9D54390A9F575D1AC53C135C&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_dnssd.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF949CE000&quot;, &quot;buildId&quot; : &quot;17B03FFD92C532829981EBB28B456207&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_info.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8F010000&quot;, &quot;buildId&quot; : &quot;395D8CD6616A3BD3A195C6D68EB9AB22&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_kernel.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8A192000&quot;, &quot;buildId&quot; : &quot;9EDE872E2A9E3A788E1DAB790794A098&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_m.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8CF24000&quot;, &quot;buildId&quot; : &quot;9D96AACD58703A5CB8497F9C0F6EBB09&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_malloc.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8B13A000&quot;, &quot;buildId&quot; : &quot;A695B4E438E9332EA77229D31E3F1385&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_network.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF93D81000&quot;, &quot;buildId&quot; : &quot;A499D688916537768C8EC018897B5B13&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_notify.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF90247000&quot;, &quot;buildId&quot; : &quot;9B34B4FEF5AD3F09A5F046AFF3571323&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_platform.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8E7FB000&quot;, &quot;buildId&quot; : &quot;3C3D3DA832B9324398ECD89B9A1670B3&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_pthread.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8EF58000&quot;, &quot;buildId&quot; : &quot;9DA50FD0D9AC3051AD4BBA0D745BC49C&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_sandbox.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF942DC000&quot;, &quot;buildId&quot; : &quot;0D0B13EA6B7A3AC8BE60B548543BEB77&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libsystem_stats.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF88B12000&quot;, &quot;buildId&quot; : &quot;4E51D5B092A03D0DB90E495A1ED3E391&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libunc.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF90856000&quot;, &quot;buildId&quot; : &quot;C3737C9AC06F310CB78C7D8D882A35DE&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libunwind.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8C25C000&quot;, &quot;buildId&quot; : &quot;95D4D11833683474989D271DE18C8365&quot; }, { &quot;path&quot; : &quot;/usr/lib/system/libxpc.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8E26F000&quot;, &quot;buildId&quot; : &quot;AB40CD57F4543FD4B41563B3C0D5C624&quot; }, { &quot;path&quot; : &quot;/usr/lib/libobjc.A.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8F0EE000&quot;, &quot;buildId&quot; : &quot;F21C57427B9C31F1BBAE1717BC6C2F1B&quot; }, { &quot;path&quot; : &quot;/usr/lib/libauto.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8EFC0000&quot;, &quot;buildId&quot; : &quot;F45C36E8B6063886B5B1B6745E757CA8&quot; }, { &quot;path&quot; : &quot;/usr/lib/libc++abi.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8FDEF000&quot;, &quot;buildId&quot; : &quot;21A807D367323455B77F743E9F916DF0&quot; }, { &quot;path&quot; : &quot;/usr/lib/libDiagnosticMessagesClient.dylib&quot;, &quot;machType&quot; : 6, &quot;b&quot; : &quot;7FFF8CAD0000&quot;, &quot;buildId&quot; : &quot;4CDB0F7BC0AF3424BC39495696F0DB1E&quot; } ] }}&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; mongod(_ZN5mongo15printStackTraceERNSt3__113basic_ostreamIcNS0_11char_traitsIcEEEE+0x39) [0x10ec99839]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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; mongod(_ZN5mongo12_GLOBAL__N_124abruptQuitWithAddrSignalEiP9__siginfoPv+0x11E) [0x10ec993fe]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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; libsystem_platform.dylib(_sigtramp+0x1A) [0x7fff8e7fe5aa]&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; ??? [0xc0]&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; mongod(_ZN5mongo15WiredTigerIndex11IndexCursor9advanceToERKNS_7BSONObjEibRKNSt3__16vectorIPKNS_11BSONElementENS5_9allocatorIS9_EEEERKNS6_IbNSA_IbEEEE+0x60) [0x10eac8810]&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(_ZN5mongo16BtreeIndexCursor4seekERKNSt3__16vectorIPKNS_11BSONElementENS1_9allocatorIS5_EEEERKNS2_IbNS6_IbEEEE+0x44) [0x10e80daf4]&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(_ZN5mongo9IndexScan13initIndexScanEv+0x338) [0x10e7839b8]&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(_ZN5mongo9IndexScan4workEPm+0x4C) [0x10e783d1c]&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(_ZN5mongo10FetchStage4workEPm+0x10E) [0x10e77575e]&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(_ZN5mongo12PlanExecutor7getNextEPNS_7BSONObjEPNS_8RecordIdE+0x97) [0x10e94fcc7]&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(_ZN5mongo12PlanExecutor11executePlanEv+0x58) [0x10e9503b8]&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(_ZN5mongo7Explain13explainStagesEPNS_12PlanExecutorENS_13ExplainCommon9VerbosityEPNS_14BSONObjBuilderE+0x6D) [0x10e91939d]&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(_ZNK5mongo7FindCmd7explainEPNS_16OperationContextERKNSt3__112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEERKNS_7BSONObjENS_13ExplainCommon9VerbosityEPNS_14BSONObjBuilderE+0x2A9) [0x10e6cc9b9]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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; mongod(_ZN5mongo10CmdExplain3runEPNS_16OperationContextERKNSt3__112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEERNS_7BSONObjEiRS9_RNS_14BSONObjBuilderEb+0x248) [0x10e6c5268]&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(_ZN5mongo12_execCommandEPNS_16OperationContextEPNS_7CommandERKNSt3__112basic_stringIcNS4_11char_traitsIcEENS4_9allocatorIcEEEERNS_7BSONObjEiRSA_RNS_14BSONObjBuilderEb+0x3A) [0x10e7444fa]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&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; mongod(_ZN5mongo7Command11execCommandEPNS_16OperationContextEPS0_iPKcRNS_7BSONObjERNS_14BSONObjBuilderEb+0xBDE) [0x10e74561e]&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(_ZN5mongo12_runCommandsEPNS_16OperationContextEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x47C) [0x10e74626c]&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(_ZN5mongo8runQueryEPNS_16OperationContextERNS_7MessageERNS_12QueryMessageERNS_5CurOpES3_b+0xF61) [0x10e91eaf1]&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(_ZN5mongo16assembleResponseEPNS_16OperationContextERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortEb+0x9D9) [0x10e8202b9]&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(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0xE1) [0x10e574d31]&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(_ZN5mongo17PortMessageServer17handleIncomingMsgEPv+0x526) [0x10ec5d376]&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(_ZN5boost12_GLOBAL__N_112thread_proxyEPv+0xB1) [0x10eccd551]&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; libsystem_pthread.dylib(_pthread_body+0x8A) [0x7fff8ef59899]&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; libsystem_pthread.dylib(_pthread_struct_init+0x0) [0x7fff8ef5972a]&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; libsystem_pthread.dylib(thread_start+0xD) [0x7fff8ef5dfc9]&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;-----  END BACKTRACE  -----&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;So it would be nice to make sure that on startup _mdb metadata matches expected files?   Also not sure that allowing a mix with in subdirectory and not in subdirectory indexes is a good idea (same problem would probably happen if I mistakenly start mongod without directoryForIndexes flag - it would be like index files disappeared while being in metadata).&lt;/p&gt;</description>
                <environment></environment>
        <key id="174855">SERVER-16567</key>
            <summary>extend data directory metadata to hold storage engine creation settings for startup validation</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="9">Done</resolution>
                                        <assignee username="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="asya.kamsky@mongodb.com">Asya Kamsky</reporter>
                        <labels>
                    </labels>
                <created>Tue, 16 Dec 2014 18:46:02 +0000</created>
                <updated>Tue, 3 Mar 2015 18:23:45 +0000</updated>
                            <resolved>Fri, 9 Jan 2015 19:22:20 +0000</resolved>
                                    <version>2.8.0-rc2</version>
                                    <fixVersion>2.8.0-rc5</fixVersion>
                                    <component>Storage</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="801457" author="xgen-internal-githook" created="Fri, 9 Jan 2015 19:21:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16567&quot; title=&quot;extend data directory metadata to hold storage engine creation settings for startup validation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16567&quot;&gt;&lt;del&gt;SERVER-16567&lt;/del&gt;&lt;/a&gt; removed StorageEngineMetadata::updateIfMissing&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/94fafc43f893854a17d0a7c711e3c90cefce4660&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/94fafc43f893854a17d0a7c711e3c90cefce4660&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="801456" author="xgen-internal-githook" created="Fri, 9 Jan 2015 19:21:32 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16567&quot; title=&quot;extend data directory metadata to hold storage engine creation settings for startup validation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16567&quot;&gt;&lt;del&gt;SERVER-16567&lt;/del&gt;&lt;/a&gt; check startup options against creation settings in data directory metadata&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/95042383af1e5fa46bb79b7ed70e71eed4c8ae67&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/95042383af1e5fa46bb79b7ed70e71eed4c8ae67&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="801455" author="xgen-internal-githook" created="Fri, 9 Jan 2015 19:21:30 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;benety&apos;, u&apos;name&apos;: u&apos;Benety Goh&apos;, u&apos;email&apos;: u&apos;benety@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-16567&quot; title=&quot;extend data directory metadata to hold storage engine creation settings for startup validation&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-16567&quot;&gt;&lt;del&gt;SERVER-16567&lt;/del&gt;&lt;/a&gt; added StorageEngineMetadata support for optional storage engine BSON document&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/354fcc2846cdef3666ed8aab7247193e2f665317&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/354fcc2846cdef3666ed8aab7247193e2f665317&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="790924" author="matt.kangas@10gen.com" created="Fri, 19 Dec 2014 16:57:23 +0000"  >&lt;p&gt;I concur. When &lt;tt&gt;&amp;#45;&amp;#45;wiredTigerDirectoryForIndexes&lt;/tt&gt; is used, we should verify that the subdirectories still exist and the tables _mdb_metadata.wt expects are still in them. The feature exists so users can put indexes on a separate partition, and failure to mount the correct partition will no doubt happen in the field.&lt;/p&gt;

&lt;p&gt;Also, when a user initializes a dbpath with &lt;tt&gt;&amp;#45;&amp;#45;wiredTigerDirectoryForIndexes&lt;/tt&gt;, we should require the same option for future uses of that dbpath. We can extend &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-15986&quot; title=&quot;Starting with different storage engines in the same dbpath should error/warn&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-15986&quot;&gt;&lt;del&gt;SERVER-15986&lt;/del&gt;&lt;/a&gt; to support this.&lt;/p&gt;</comment>
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