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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>
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            <title>[SERVER-22045] MongoDB should crash if a data file is deleted</title>
                <link>https://jira.mongodb.org/browse/SERVER-22045</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;During the MongoDB 2.7.x development cycle an invariant check was added to &lt;tt&gt;ExtentManager::_getOpenFile&lt;/tt&gt;  to abort the &lt;tt&gt;mongod&lt;/tt&gt; process if a &lt;tt&gt;_getOpenFile()&lt;/tt&gt; call fails.&lt;/p&gt;

&lt;p&gt;This invariant check mitigates some avoidable query integrity and failover issues if required MMAP data files are unable to be opened, and should be backported to the 2.6 branch.&lt;/p&gt;

&lt;p&gt;The expectation is that a &lt;tt&gt;mongod&lt;/tt&gt; attempting to open missing data files should abort and trigger any normal HA/failover logic; this is particularly important if that node is a config server or replica set primary.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;Original Description&lt;/b&gt;:&lt;/p&gt;

&lt;p&gt;When a file is deleted / or lost, the single process is corrupted but this doesn&apos;t cause a process termination. The process continues running providing incomplete information to the queries.&lt;/p&gt;

&lt;p&gt;I believe the specific file checks should trigger a fatal assertion instead of letting the process run in a corrupted state.&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r2.6.9/src/mongo/db/storage/extent_manager.cpp#L109&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;2.6&lt;/a&gt;&lt;/li&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/r3.2.0/src/mongo/db/storage/mmap_v1/mmap_v1_extent_manager.cpp#L200&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;3.2&lt;/a&gt; (&lt;tt&gt;invariant(false) is triggering the process abortion? if so, this method was not invoked when some tests were performed causing a similar issue&lt;/tt&gt;)&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;This is causing issues avoiding the high availability mechanisms to be triggered for config servers and replica sets.&lt;/p&gt;</description>
                <environment></environment>
        <key id="245424">SERVER-22045</key>
            <summary>MongoDB should crash if a data file is deleted</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="9">Done</resolution>
                                        <assignee username="asya.kamsky@mongodb.com">Asya Kamsky</assignee>
                                    <reporter username="ricardo.lorenzo">Ricardo Lorenzo</reporter>
                        <labels>
                    </labels>
                <created>Mon, 4 Jan 2016 09:27:21 +0000</created>
                <updated>Fri, 5 Oct 2018 15:03:30 +0000</updated>
                            <resolved>Fri, 5 Oct 2018 15:03:30 +0000</resolved>
                                    <version>2.6.9</version>
                                                    <component>MMAPv1</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="2025091" author="asya" created="Fri, 5 Oct 2018 15:03:30 +0000"  >&lt;p&gt;Most of the driving use cases for this request were based on MMAPV1 behavior.  We believe that Wired Tiger already behaves correctly.&lt;/p&gt;</comment>
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            <issuekey id="136657">SERVER-13961</issuekey>
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            <issuekey id="141858">SERVER-14243</issuekey>
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