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        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-9551] Perform a minimum size validation when creating oplog</title>
                <link>https://jira.mongodb.org/browse/SERVER-9551</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Currently, when creating the oplog or other capped collections MongoDB allows you to create an oplog &amp;lt;16MB without warning or error.  Hence the collection can be smaller than a single large document.  Given that the collection must be dropped to correct this, we should validate the size and enforce a sane minimum (perhaps &amp;gt;32MB - i.e. greater than the size of two max sized BSON docs, should be disallowed and anything under 1GB should print a warning).&lt;/p&gt;</description>
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        <key id="74083">SERVER-9551</key>
            <summary>Perform a minimum size validation when creating oplog</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</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-repl">Backlog - Replication Team</assignee>
                                    <reporter username="adam@comerford.net">Adam Comerford</reporter>
                        <labels>
                    </labels>
                <created>Fri, 3 May 2013 12:29:29 +0000</created>
                <updated>Tue, 6 Dec 2022 05:21:32 +0000</updated>
                            <resolved>Thu, 23 Aug 2018 20:24:03 +0000</resolved>
                                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>7</watches>
                                                                                                                <comments>
                            <comment id="821058" author="scotthernandez" created="Wed, 4 Feb 2015 13:44:45 +0000"  >&lt;p&gt;If the secondary has an oplog which is too small for the replicated oplog entries then it will fassert and shutdown. &lt;/p&gt;

&lt;p&gt;This behavior crosses into the bug realm.&lt;/p&gt;</comment>
                            <comment id="463249" author="eliot" created="Fri, 29 Nov 2013 05:16:20 +0000"  >&lt;p&gt;The oplog case is not the same as a general capped collection.&lt;br/&gt;
If you think the capped part is important, please make that a different ticket.&lt;/p&gt;</comment>
                            <comment id="463080" author="adamc" created="Thu, 28 Nov 2013 11:46:20 +0000"  >&lt;p&gt;Perhaps a warning when creating the capped collection (oplog or not) if it is &amp;lt;16MB.  Currently this can lead to some nasty side-effects&lt;/p&gt;</comment>
                            <comment id="327540" author="eliot" created="Fri, 3 May 2013 13:53:51 +0000"  >&lt;p&gt;many valid use cases for small oplogs, and since someone has to explicitly do it, not sure we shouldn&apos;t let them.&lt;/p&gt;</comment>
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