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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-31298] Temporary Collections created through oplog application, but not through client commands</title>
                <link>https://jira.mongodb.org/browse/SERVER-31298</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The rollback fuzzer caught an issue when doing data validation cross a replica set that rolls back (an instance of RollbackTest) some operations and a &quot;control group&quot; replica set that does not roll back, there seemed to have been an issue where a temporary collection only exists on the replica set that did a rollback.&lt;/p&gt;

&lt;p&gt;The &quot;control group&quot; replica set has 2 nodes to avoid differing behavior wrt. temporary collections one a standalone or single node replicates.&lt;/p&gt;

&lt;p&gt;This suggests there&apos;s behavioral difference between oplog application vs commands performed directly by a client.&lt;/p&gt;

&lt;p&gt;The failure is reproducible by downloading the js file attached to this ticket and running &lt;tt&gt;./mongo --nodb rollback_test-convertToCapped.js&lt;/tt&gt;&lt;/p&gt;

&lt;p&gt;After chatting with &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=judah.schvimer&quot; class=&quot;user-hover&quot; rel=&quot;judah.schvimer&quot;&gt;judah.schvimer&lt;/a&gt;, I&apos;m filing this ticket for future reference, but it may not be something that needs to be looked into in the immediate future.&lt;/p&gt;</description>
                <environment></environment>
        <key id="434689">SERVER-31298</key>
            <summary>Temporary Collections created through oplog application, but not through client commands</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="4" iconUrl="https://jira.mongodb.org/images/icons/priorities/minor.svg">Minor - P4</priority>
                        <status id="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-repl">Backlog - Replication Team</assignee>
                                    <reporter username="robert.guo@mongodb.com">Robert Guo</reporter>
                        <labels>
                            <label>rbfz</label>
                    </labels>
                <created>Thu, 28 Sep 2017 13:58:26 +0000</created>
                <updated>Tue, 6 Dec 2022 03:50:41 +0000</updated>
                                            <version>3.5.12</version>
                                                    <component>Replication</component>
                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="3032358" author="siyuan.zhou@10gen.com" created="Thu, 9 Apr 2020 05:36:37 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=robert.guo&quot; class=&quot;user-hover&quot; rel=&quot;robert.guo&quot;&gt;robert.guo&lt;/a&gt;, this is depended on by TIG-667. Do we still want to remove applyOps from the rollback fuzzer&apos;s blacklist? Is this ticket blocking any STM project?&lt;/p&gt;

&lt;p&gt;Since we only support applyOps for MongoMirror, if we need to do anything in this ticket, the first thing is to understand whether the failed operation can come from MongoMirror.&lt;/p&gt;</comment>
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