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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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            <title>[SERVER-26499] SIGKILL during MMAPv1 namespace file creation can lead to invalid file size and will block mongod startup</title>
                <link>https://jira.mongodb.org/browse/SERVER-26499</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When we create namespace files under MMAPv1 we create and initialize to 0 the contents in 1MB increments.  If mongoD receives a SIGKILL during this process, it is possible for a file to be written that does not fall on a 1MB boundary which is larger than the guaranteed atomic write size (at least by default, both on Linux and Windows with our current implementation).&lt;/p&gt;

&lt;p&gt;When mongoD is restarted with the invalid namespace file in place, it will fatally assert when it finds that this file is not a multiple of 1MB.&lt;/p&gt;</description>
                <environment></environment>
        <key id="321580">SERVER-26499</key>
            <summary>SIGKILL during MMAPv1 namespace file creation can lead to invalid file size and will block mongod startup</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="james.wahlin@mongodb.com">James Wahlin</reporter>
                        <labels>
                    </labels>
                <created>Thu, 6 Oct 2016 13:55:09 +0000</created>
                <updated>Tue, 6 Dec 2022 04:14:56 +0000</updated>
                            <resolved>Fri, 14 Sep 2018 19:40:36 +0000</resolved>
                                                                    <component>MMAPv1</component>
                    <component>Stability</component>
                    <component>Storage</component>
                                        <votes>0</votes>
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