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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-53518] Switch to use resharding-specific rules for resharding&apos;s oplog application</title>
                <link>https://jira.mongodb.org/browse/SERVER-53518</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Resharding has oplog application rules which different from replication due to the need to be robust to transient duplicate &amp;#95;id values. The implementation for these rules have been implemented in resharding_oplog_application.cpp but aren&apos;t being executed outside of C++ unit tests. This ticket represents the capstone for switching resharding to run with this other implementation in all of our JavaScript integration tests.&lt;/p&gt;

&lt;ul&gt;
	&lt;li&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/d05ef7fe9e0963c04713c0f0ac68d0a2234b8e38/src/mongo/db/s/resharding/resharding_oplog_applier.cpp#L245-L246&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;Move creating the stash collection out of ReshardingOplogApplier::applyUntilCloneFinishedTs()&lt;/a&gt; and instead have RecipientStateMachine create the stash collections before scheduling any of the ReshardingOplogAppliers. We&apos;ll likely want creating the stash collection to be a method on ReshardingOplogApplier so it is easy to call from within a unit test.&lt;/li&gt;
	&lt;li&gt;Run the resharding&amp;#95;fuzzer&amp;#95;inplace tasks in a patch build with &lt;a href=&quot;https://github.com/mongodb/mongo/blob/d05ef7fe9e0963c04713c0f0ac68d0a2234b8e38/src/mongo/db/s/resharding/resharding_server_parameters.idl#L86-L93&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;the useReshardingOplogApplicationRules server parameter&lt;/a&gt; defaulted to true. Restart the tasks (assuming they pass) at least 4 times to be extra sure.&lt;/li&gt;
	&lt;li&gt;Make any other changes based on the patch build results. &lt;em&gt;Also consider carving off these changes into a separate code reviews and/or tickets.&lt;/em&gt;&lt;/li&gt;
	&lt;li&gt;Remove the useReshardingOplogApplicationRules server parameter and stop calling repl::OplogApplierUtils::applyOplogEntryOrGroupedInsertsCommon().&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="1577179">SERVER-53518</key>
            <summary>Switch to use resharding-specific rules for resharding&apos;s oplog application</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="max.hirschhorn@mongodb.com">Max Hirschhorn</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>Thu, 24 Dec 2020 01:55:25 +0000</created>
                <updated>Sun, 29 Oct 2023 21:59:15 +0000</updated>
                            <resolved>Tue, 5 Jan 2021 06:15:58 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Sharding</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="3548203" author="xgen-internal-githook" created="Tue, 5 Jan 2021 03:18:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Max Hirschhorn&apos;, &apos;email&apos;: &apos;max.hirschhorn@mongodb.com&apos;, &apos;username&apos;: &apos;visemet&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-53518&quot; title=&quot;Switch to use resharding-specific rules for resharding&amp;#39;s oplog application&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-53518&quot;&gt;&lt;del&gt;SERVER-53518&lt;/del&gt;&lt;/a&gt; Switch to use resharding oplog application rules.&lt;/p&gt;

&lt;p&gt;Removes the useReshardingOplogApplicationRules server parameter&lt;br/&gt;
altogether.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2640ec0b0d800bf0a1e761fdb9c249b5d1ffa86a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2640ec0b0d800bf0a1e761fdb9c249b5d1ffa86a&lt;/a&gt;&lt;/p&gt;</comment>
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