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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-85217] Reduce movePrimary critical section time in case of failure before commit phase</title>
                <link>https://jira.mongodb.org/browse/SERVER-85217</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The MovePrimaryCoordinator, in case of error during cloning, &lt;a href=&quot;https://github.com/10gen/mongo/blob/e627a7d75870a18ed4dea1f6b7d874597d45d5ed/src/mongo/db/s/move_primary_coordinator.cpp#L398&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;unblocks the critical section&lt;/a&gt; right after dropping the orphaned data on the recipient.&lt;br/&gt;
However, releasing the critical section before is also valid and would decrease the read/write blocking period.&lt;/p&gt;

&lt;p&gt;Is worth mentioning that dropping the orphaned data on the recipient could take a long time considering the following points:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;The &lt;a href=&quot;https://github.com/10gen/mongo/blob/e627a7d75870a18ed4dea1f6b7d874597d45d5ed/src/mongo/db/s/move_primary_coordinator.cpp#L710-L717&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;command sent to drop the recipient data&lt;/a&gt; attaches a session to join the cloning thread launched by the movePrimary coordinator previously. This was introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-81229&quot; title=&quot;Move primary may not cleanup cloned collections on failure&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-81229&quot;&gt;&lt;del&gt;SERVER-81229&lt;/del&gt;&lt;/a&gt;.&lt;/li&gt;
	&lt;li&gt;The cloning thread is not aborted in case of a failure on the movePrimary coordinator (like a step-down). Therefore, we will wait for a full cloning before releasing the critical section.&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2545741">SERVER-85217</key>
            <summary>Reduce movePrimary critical section time in case of failure before commit phase</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="silvia.surroca@mongodb.com">Silvia Surroca</assignee>
                                    <reporter username="silvia.surroca@mongodb.com">Silvia Surroca</reporter>
                        <labels>
                    </labels>
                <created>Mon, 15 Jan 2024 15:38:42 +0000</created>
                <updated>Tue, 30 Jan 2024 14:50:42 +0000</updated>
                            <resolved>Tue, 30 Jan 2024 14:50:42 +0000</resolved>
                                                    <fixVersion>8.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="6052350" author="xgen-internal-githook" created="Tue, 30 Jan 2024 14:48:29 +0000"  >&lt;p&gt;Author: &lt;/p&gt;
{&apos;name&apos;: &apos;Silvia Surroca&apos;, &apos;email&apos;: &apos;silvia.surroca@mongodb.com&apos;, &apos;username&apos;: &apos;silviasuhu&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-85217&quot; title=&quot;Reduce movePrimary critical section time in case of failure before commit phase&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-85217&quot;&gt;&lt;del&gt;SERVER-85217&lt;/del&gt;&lt;/a&gt; Reduce movePrimary critical section time in case of failure before commit phase (#18096)&lt;/p&gt;

&lt;p&gt;GitOrigin-RevId: 0fae62de2347fbdfba9747d5cc52ea004903e895&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/821c4839f200fd13a6b71939741a685c07d8a243&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/821c4839f200fd13a6b71939741a685c07d8a243&lt;/a&gt;&lt;/p&gt;</comment>
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