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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-78675] TransactionParticipant generates applyOps entry information for prepared transactions rather than delegating to OpObserverImpl</title>
                <link>https://jira.mongodb.org/browse/SERVER-78675</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;OpObserverImpl::preTransactionPrepare() currently &lt;a href=&quot;https://github.com/mongodb/mongo/blob/5e05c79980316294f898113b2265e37166db9700/src/mongo/db/op_observer/op_observer_impl.cpp#L2015&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;generates the applyOps entry information&lt;/a&gt; using the provided &lt;a href=&quot;https://github.com/mongodb/mongo/blob/5e05c79980316294f898113b2265e37166db9700/src/mongo/db/transaction/transaction_participant.cpp#L1779&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;oplog slots from TransactionParticipant&lt;/a&gt;. This applyOps info is returned from the OpObserver interface for TransactionParticipant&apos;s own processing. We can move this call to &lt;a href=&quot;https://github.com/mongodb/mongo/blob/5e05c79980316294f898113b2265e37166db9700/src/mongo/db/transaction/transaction_operations.cpp#L230&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;TransactionOperations::getApplyOpsInfo()&lt;/a&gt; to the TransactionParticipant and simplify the OpObserver interface by eliminating the need for the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/5e05c79980316294f898113b2265e37166db9700/src/mongo/db/op_observer/op_observer_registry.h#L537&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;OpObserver method to return a result&lt;/a&gt;.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2383965">SERVER-78675</key>
            <summary>TransactionParticipant generates applyOps entry information for prepared transactions rather than delegating to OpObserverImpl</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</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="benety.goh@mongodb.com">Benety Goh</assignee>
                                    <reporter username="benety.goh@mongodb.com">Benety Goh</reporter>
                        <labels>
                    </labels>
                <created>Wed, 5 Jul 2023 15:13:01 +0000</created>
                <updated>Sun, 29 Oct 2023 21:19:13 +0000</updated>
                            <resolved>Thu, 6 Jul 2023 14:13:34 +0000</resolved>
                                                    <fixVersion>7.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="5547265" author="xgen-internal-githook" created="Thu, 6 Jul 2023 13:48:58 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78675&quot; title=&quot;TransactionParticipant generates applyOps entry information for prepared transactions rather than delegating to OpObserverImpl&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78675&quot;&gt;&lt;del&gt;SERVER-78675&lt;/del&gt;&lt;/a&gt; TransactionParticipant generates applyOps entry information for prepared transactions rather than delegating to OpObserverImpl&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f9a49ec48ad035ca2f6701f5f458aef57dd70438&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f9a49ec48ad035ca2f6701f5f458aef57dd70438&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5546964" author="xgen-internal-githook" created="Thu, 6 Jul 2023 12:25:33 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Benety Goh&apos;, &apos;email&apos;: &apos;benety@mongodb.com&apos;, &apos;username&apos;: &apos;benety&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78675&quot; title=&quot;TransactionParticipant generates applyOps entry information for prepared transactions rather than delegating to OpObserverImpl&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78675&quot;&gt;&lt;del&gt;SERVER-78675&lt;/del&gt;&lt;/a&gt; move getMaxNumberOfTransactionOperationsInSingleOplogEntry() and getMaxSizeOfTransactionOperationsInSingleOplogEntryBytes() from OpObserverImpl to TransactionParticipant&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f5fb74d9ae76bce6e07399f8e4f9bdb1d1278ac8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f5fb74d9ae76bce6e07399f8e4f9bdb1d1278ac8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="5544670" author="benety.goh" created="Wed, 5 Jul 2023 15:17:06 +0000"  >&lt;p&gt;This change supports &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-78310&quot; title=&quot;move change stream pre-image logic out of OpObserverImpl&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-78310&quot;&gt;&lt;del&gt;SERVER-78310&lt;/del&gt;&lt;/a&gt;. Previously, it was not convenient to do the applyOps oplog entry processing in the TransactionParticipant because a lot of the applyOps logic was internal to the OpObserverImpl implementation. In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-69749&quot; title=&quot;move packOperationsIntoApplyOps() from OpObserverImpl to TransactionOperations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-69749&quot;&gt;&lt;del&gt;SERVER-69749&lt;/del&gt;&lt;/a&gt;, we extracted this applyOps processing logic and made it part of the TransactionOperations class. This made it possible to reuse this logic within TransactionParticipant.&lt;/p&gt;</comment>
                    </comments>
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                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="2385090">SERVER-78733</issuekey>
        </issuelink>
                            </outwardlinks>
                                                                <inwardlinks description="is related to">
                                        <issuelink>
            <issuekey id="2137932">SERVER-69749</issuekey>
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            <issuelink>
            <issuekey id="2373957">SERVER-78310</issuekey>
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