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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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<item>
            <title>[SERVER-49909] Error if resharding&apos;s oplog application sees an unexpected oplog entry</title>
                <link>https://jira.mongodb.org/browse/SERVER-49909</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Includes oplog entries for create collection, applyOps containing create collection, renameCollection (until renaming a sharded collection is supported), dropDatabase (which should always be preceded by drop for collection), emptycapped, and convertToCapped.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;Update the config.localReshardingOperations.recipient document to have an error state.&lt;/li&gt;
	&lt;li&gt;Report to the config server that the resharding operation has been aborted.&lt;/li&gt;
	&lt;li&gt;&lt;del&gt;Crash the mongod process when testing-mode is enabled to surface this issue more readily in Evergreen.&lt;/del&gt; &lt;em&gt;To ensure that we&apos;re testing the error recovery codepath, we won&apos;t want to crash the mongod process. We&apos;ll instead want to ensure that the reshardCollection command never fails with the special error that was reported by the mongod process to the config server.&lt;/em&gt;&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1421068">SERVER-49909</key>
            <summary>Error if resharding&apos;s oplog application sees an unexpected oplog entry</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="13201">Fixed</resolution>
                                        <assignee username="janna.golden@mongodb.com">Janna Golden</assignee>
                                    <reporter username="max.hirschhorn@mongodb.com">Max Hirschhorn</reporter>
                        <labels>
                            <label>PM-234-M3</label>
                            <label>PM-234-T-oplog-apply</label>
                    </labels>
                <created>Sat, 25 Jul 2020 17:58:49 +0000</created>
                <updated>Sun, 29 Oct 2023 22:05:10 +0000</updated>
                            <resolved>Wed, 16 Dec 2020 17:37:26 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3532863" author="xgen-internal-githook" created="Wed, 16 Dec 2020 17:36:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;jannaerin&apos;, &apos;email&apos;: &apos;golden.janna@gmail.com&apos;, &apos;username&apos;: &apos;jannaerin&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-49909&quot; title=&quot;Error if resharding&amp;#39;s oplog application sees an unexpected oplog entry&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-49909&quot;&gt;&lt;del&gt;SERVER-49909&lt;/del&gt;&lt;/a&gt; Error if resharding&apos;s oplog application sees an unexpected oplog entry&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/704e695b7296e52bf47d999b8250a14809752051&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/704e695b7296e52bf47d999b8250a14809752051&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3528564" author="max.hirschhorn@10gen.com" created="Mon, 14 Dec 2020 17:40:41 +0000"  >&lt;p&gt;applyOps, commitTransaction, and abortTransaction should be the only allowed commands (op=&apos;c&apos;).&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;Update the config.localReshardingOperations.recipient document to have an error state.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;With the changes from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-52594&quot; title=&quot;Integrate ReshardingOplogApplier into RecipientStateMachine&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-52594&quot;&gt;&lt;del&gt;SERVER-52594&lt;/del&gt;&lt;/a&gt;, throwing an exception from applyUntilCloneFinishedTs() or applyUntilDone() should be sufficient for causing the recipient to transition into the error state.&lt;/p&gt;

&lt;blockquote&gt;
&lt;p&gt;Report to the config server that the resharding operation has been aborted.&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Reporting the error to the config server is separate work tracked by &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50584&quot; title=&quot;Serialize resharding errors into a new abortReason field&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50584&quot;&gt;&lt;del&gt;SERVER-50584&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                    </comments>
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                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="1421065">SERVER-49906</issuekey>
        </issuelink>
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            <issuekey id="1421065">SERVER-49906</issuekey>
        </issuelink>
                            </outwardlinks>
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            <issuekey id="1454459">SERVER-50584</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1532405">SERVER-52594</issuekey>
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