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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-66566] Optimize scanning SessionCatalog when refreshing retryable writes from storage</title>
                <link>https://jira.mongodb.org/browse/SERVER-66566</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;To support retryable writes that execute statements as transactions, when refreshing a retryable write from storage, we &lt;a href=&quot;https://github.com/10gen/mongo/blob/879d439c78c5c72735af6fbfdb2690eb32f74559/src/mongo/db/transaction_participant.cpp#L329-L334&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;scan the session catalog for the highest txnNumber for that session&lt;/a&gt;. Scanning the catalog locks it, so we should optimize this scan to leverage the changes from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-62479&quot; title=&quot;[Retryability] Investigate the lifetime of TransactionParticipants stored in RetryableTransactionParticipantCatalog&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-62479&quot;&gt;&lt;del&gt;SERVER-62479&lt;/del&gt;&lt;/a&gt; to store all child sessions with their parent to either only scan those children or to scan no sessions by caching the highest txnNumber of any child directly with each parent session.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2049974">SERVER-66566</key>
            <summary>Optimize scanning SessionCatalog when refreshing retryable writes from storage</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="cheahuychou.mao@mongodb.com">Cheahuychou Mao</assignee>
                                    <reporter username="jack.mulrow@mongodb.com">Jack Mulrow</reporter>
                        <labels>
                    </labels>
                <created>Wed, 18 May 2022 20:20:39 +0000</created>
                <updated>Sun, 29 Oct 2023 21:38:04 +0000</updated>
                            <resolved>Thu, 19 May 2022 15:23:12 +0000</resolved>
                                                    <fixVersion>6.0.0-rc7</fixVersion>
                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="4559593" author="xgen-internal-githook" created="Thu, 19 May 2022 15:21:44 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Cheahuychou Mao&apos;, &apos;email&apos;: &apos;mao.cheahuychou@gmail.com&apos;, &apos;username&apos;: &apos;cheahuychou&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-66566&quot; title=&quot;Optimize scanning SessionCatalog when refreshing retryable writes from storage&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-66566&quot;&gt;&lt;del&gt;SERVER-66566&lt;/del&gt;&lt;/a&gt; Optimize scanning SessionCatalog when refreshing retryable writes from storage&lt;/p&gt;

&lt;p&gt;(cherry picked from commit c08864097934c74da40ffff9ea46176fb471ead5)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/9059aa49eb671b272051b21237ec04db43794ad8&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/9059aa49eb671b272051b21237ec04db43794ad8&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4558188" author="xgen-internal-githook" created="Thu, 19 May 2022 00:22:41 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Cheahuychou Mao&apos;, &apos;email&apos;: &apos;mao.cheahuychou@gmail.com&apos;, &apos;username&apos;: &apos;cheahuychou&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-66566&quot; title=&quot;Optimize scanning SessionCatalog when refreshing retryable writes from storage&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-66566&quot;&gt;&lt;del&gt;SERVER-66566&lt;/del&gt;&lt;/a&gt; Optimize scanning SessionCatalog when refreshing retryable writes from storage&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c08864097934c74da40ffff9ea46176fb471ead5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c08864097934c74da40ffff9ea46176fb471ead5&lt;/a&gt;&lt;/p&gt;</comment>
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